CN114961013A - Replaceable component type energy dissipation support, self-resetting support and use method of replaceable component type energy dissipation support - Google Patents

Abstract

The invention relates to the technical field of civil engineering, in particular to a new type of energy-dissipating support, a new type of self-reset support and their respective installation and use methods that utilize energy-dissipated energy-dissipating components of notched thick-walled steel pipes, which are applied to shock absorption control of buildings and bridge structures field. Provide a new type of energy dissipation support with simple structure, high ductility, assembly type, reusability, stable performance, high bearing capacity, and replaceable core components, including a first connector, a first outer sleeve, a guide shaft and a second connection parts, the first incision thick-walled steel pipe, the sealing plate, the limit nut, the first incision thick-walled steel pipe connecting flange, the third stop nut, the first connecting bolt and the fifth connecting bolt; one end of the first outer casing is connected The first connecting piece, the other end of the first outer sleeve is connected to the sealing plate to overcome the defect of the existing self-resetting support.

Description

A replaceable component type energy dissipating support, self-resetting support and using method thereof

technical field

The invention relates to the technical field of civil engineering, in particular to a new type of energy-consuming support, a new type of self-reset support and their respective installation and use methods that utilize energy-dissipated energy-dissipating components of notched thick-walled steel pipes, which are applied to shock absorption control of buildings and bridge structures field.

Background technique

How to improve the seismic performance of buildings has become a research hotspot for researchers in the engineering seismic field. One of the current effective measures is to use energy-consuming supports to replace traditional supports to consume the energy input to buildings by earthquakes, thereby reducing the damage to buildings caused by earthquakes. Among all the energy-consuming supports, the most widely used currently is the constrained buckling support (or buckling-preventing support, referred to as BRB) proposed by Japanese scholars, which yields without buckling when under compression, and has good energy dissipation. Therefore, it acts as a structural "fuse" and effectively avoids serious damage to the structure in a major earthquake. Since the introduction of BRB in my country, Chinese scholars have carried out a lot of research on it, developed many new structural forms, and also have practical engineering applications. However, the current products still have some defects, such as easy buckling at the end of the member, unbalanced compression under load, concrete and mortar in grouted BRB are prone to cracking under repeated loads, support performance is sensitive to manufacturing errors, and the inner core is under tension. After failure, the bracing will immediately fail and withdraw from work (only one line of defense), the bracing has limited ductility (existing test data show that most BRBs cannot meet the maximum ductility requirements of constrained buckling bracing frames under 2% probability of exceedance seismic input within 50 years), and bracing Unable to recycle, it will cause huge waste in overall replacement or product sampling inspection after earthquake. In addition, BRB mainly uses the plastic deformation of metal to dissipate energy, so the building will have a certain residual deformation after the earthquake. When the residual deformation is large, the building may lose its use function, which will affect people's normal life. life and production. In view of this, a new earthquake-resistant design concept-recoverable functional structure has been proposed by scholars. The feature of this structure is that its function can be restored after partial repair without repair or without affecting the use. Therefore, It has been widely studied in the engineering seismic field. One of the ways to realize the recoverable functional structure is to replace the traditional support with a new self-resetting energy-dissipating support, and realize the post-earthquake reset of the whole structure through the reset function of the self-resetting energy-dissipating support. This method has minimal changes to the traditional structural system, so it is easier to popularize and apply. A large part of the current self-resetting energy-dissipating support is realized by adding resetting materials such as prestressed steel bars, prestressed steel strands or shape memory alloys on the basis of traditional BRBs. Traditional BRBs themselves have the above-mentioned defects and the structure is not Simple, after adding the reset function, the structure is quite complicated, and the production and assembly are difficult. On the other hand, the elastic deformation of prestressed steel bars and prestressed steel strands is small, which limits the deformation ability of self-resetting supports. Although shape memory alloys have good elastic deformation ability, their performance is significantly affected by temperature. After deformation, it needs to be heated to restore it to the state before deformation, and the price is relatively high, which increases the support manufacturing cost. Other self-resetting energy-dissipating supports that use friction or viscous fluid to dissipate energy, although the energy consumption mechanism is clear, but based on friction-energy-dissipating supports, the friction surface will gradually become smooth under the action of reciprocating loads, and the friction coefficient will increase with the number of frictions. Increase and change, resulting in reduced friction, which reduces the reliability of long-term use. Based on the support of viscous fluid energy consumption, there are problems such as difficulty in sealing and easy liquid leakage.

The purpose of the present invention is to solve the problems existing in the prior art, and to provide a new type of energy-consuming support with simple structure, high ductility, assembly type, reusability, stable performance, high bearing capacity, and replaceable core components. A better alternative to restrained buckling bracing (BRB), and on this basis, a disc spring group is added for reset, forming a new self-resetting energy-dissipating support based on energy dissipation of notched thick-walled steel pipes to overcome the above-mentioned problems of existing self-resetting bracing. defect.

SUMMARY OF THE INVENTION

In order to achieve the above object, the technical scheme adopted by the present invention is as follows:

A replaceable component type energy dissipation support, comprising a first connector, a first outer sleeve, a guide shaft and a second connector, a first cut thick-walled steel pipe, a sealing plate, a limit nut, a first cut thick-walled the steel pipe connecting flange, the third stop nut, the first connecting bolt and the fifth connecting bolt; one end of the first outer sleeve is connected to the first connecting piece;

The first outer casing is provided with a fixed connecting plate, which penetrates into the guide shaft and is connected with the guide shaft through the first incision thick-walled steel pipe connecting flange. One end of the guide shaft is provided with a second connecting piece, and the other end of the guide shaft is provided There is a connecting limit nut, and the limit nut is blocked on one side of the fixed connecting plate; the guide shaft is covered with a thick-walled steel pipe with a first cut, and one end of the thick-walled steel pipe with the first cut is blocked on the other side of the fixed connecting plate, and the first cut thick-walled steel pipe is blocked on the other side of the fixed connecting plate. The other end of the cut thick-walled steel pipe is blocked by the third stop nut.

A replaceable component type self-resetting support, including the replaceable component type energy dissipation support, and also comprising a second outer sleeve, the second outer sleeve is provided with a fixed connection disk, and the second outer sleeve is connected to the first outer sleeve. Splicing, the guide shaft passes through the second outer sleeve, the guide shaft is sleeved with a disc spring or a disc spring group, and the two ends of the disc spring or the disc spring group are respectively clamped between the fixed connection plates of the adjacent sleeves.

Both sides of the disc spring or disc spring group are provided with a first cut thick-walled steel pipe and a second cut thick-walled steel pipe.

The thick-walled steel pipe with the first slit and the thick-walled steel pipe with the second slit are staggered with multiple sets of slits; the thick-walled steel pipe with the first slit or the thick-walled steel pipe with the second slit is divided into a first connection section and an energy dissipation section. and the second connecting section, the first connecting section is provided with an internal thread for fixed connection with the guide shaft, and the second connecting section is provided with an external thread for connecting with the first incision thick-walled steel pipe connecting flange , the inner diameter of the energy dissipation section is 1mm-2mm greater than the diameter of the guide shaft, and the length of the thick-walled steel pipe with the second incision is greater than or equal to the length of the thick-walled steel pipe with the first incision.

The left end of the guide shaft is provided with a left end thread, which is used for installing the limit nut, the right end is provided with a right end thread, which is used for connecting with the second connecting piece, and the middle part is provided with a left thread and a right thread, and the left thread is used for installing the first thread. A thick-walled steel pipe with a slit and a third stop nut, the right thread is used to install the second slit thick-walled steel pipe and a fourth stop nut, and the specifications and dimensions of the third and fourth stop nuts are the same. In the same way, there is an unthreaded segment between the left thread and the right thread, a left threadless segment between the left thread and the left thread, and a right threadless segment between the right thread and the right thread; the first connector It is formed by welding the lug plate and the end plate. The lug plate is provided with circular holes for pin connection, and the end plate is uniformly provided with bolt holes along the circumferential direction for the first connecting piece and the first outer sleeve. The second connecting piece is formed by welding a connecting head and a lug plate, a threaded hole is opened in the middle of the connecting head, the threaded hole is matched with the right end thread, and a circular hole is formed in the middle of the lug plate, For pin connection, its diameter is the same as the round hole.

The first outer casing is composed of a first flange, a first steel pipe, a second flange, a second steel pipe and a third flange. The inner diameter of the first flange is the same as the outer diameter of the first steel pipe, and is connected by welding. There are bolt holes on the left side of the first steel pipe and along the circumferential direction. The bolt holes correspond to the bolt holes provided on the first connecting piece and are connected by the first connecting bolts. The right side of the first steel pipe is welded to the second method. Above the flange, its length should ensure that the distance between the right end face of the limit nut and the left end face of the second flange when the guide shaft moves to the right is not less than the limit deformation of the support, and the left end face of the limit nut and the right end of the end plate when the guide shaft moves to the left The distance between the surfaces is not less than the limit deformation of the support, the length of the first steel pipe is not less than the sum of twice the design limit deformation of the support and the thickness of the limit nut, and the second flange is evenly provided with a through-hole along the center matrix. The left side of the second steel pipe is welded and connected to the second flange, and its inner and outer diameters are the same as the first steel pipe. The third flange is annular, and the inner diameter is the same as the outer diameter of the second steel pipe. On the right side of the second steel pipe, bolt holes are evenly arranged along the circumferential direction;

The third outer sleeve is composed of a sixth flange, a fourth steel pipe, a seventh flange and a fifth steel pipe. The inner diameter of the sixth flange is the same as the outer diameter of the fourth steel pipe, and is uniformly arranged along the circumferential direction. Bolt holes, the bolt holes correspond to the bolt holes, the inner and outer diameters of the fourth steel pipe and the fifth steel pipe are the same as the first steel pipe and the second steel pipe, and all the dimensions of the seventh flange are the same as those of the first steel pipe and the second steel pipe. The second flanges are exactly the same, and the diameter, quantity and position of the bolt holes along the circumferential direction are the same as those of the bolt holes; the fifth steel pipe does not bear external loads, and its length should be 100mm-200mm, away from the seventh flange. There are threaded holes on the side for installing the fourth connecting bolt.

The sealing plate includes a middle circular hole and a bolt hole arranged along the circumferential direction, which blocks the right port of the third outer sleeve, and the bolt hole is evenly arranged along the circumferential direction for installing the fourth connecting bolt; Bit nut, installed on the left end of the guide shaft, is used to restrict the guide shaft from pulling out from the support when both the thick-walled steel pipe of the first cut and the thick-walled steel pipe of the second cut are damaged;

The first incision thick-walled steel pipe connecting flange is convex and includes internal threaded holes and threaded holes evenly distributed along the circumferential direction. The internal threaded holes are threaded with the second connecting section of the first incision thick-walled steel pipe connection, the threaded hole is used to connect the first incision thick-walled steel pipe connecting flange and the first outer casing together through fifth connecting bolts;

The second incision thick-walled steel pipe connection flange has the same size as the first incision thick-walled steel pipe connection flange;

The third backstop nut is installed on the right side of the thick-walled steel pipe of the first incision, and is used to prevent the support from the displacement of the thick-walled steel pipe of the first incision relative to the guide shaft under the action of the load;

The fourth backstop nut is installed on the left side of the thick-walled steel pipe with the second incision, and is used to prevent displacement of the thick-walled steel pipe with the second incision relative to the guide shaft under the action of the load;

The first connecting bolts are used to fix the first connecting piece and the first outer casing, and the number and diameter of the bolts should be determined according to the design bearing capacity of the support; the second connecting bolts are used to fix the first outer casing and the second outer casing pipe or the third outer casing; the fourth connecting bolt is used to fix the sealing plate and the third outer casing; the fifth connecting bolt is used to fix the first incision thick-walled steel pipe connecting flange and the first outer casing ; The sixth connecting bolt is used to fix the second incision thick-walled steel pipe connecting flange and the third outer casing.

The first outer sleeve and the third outer sleeve are provided with sealing plates.

Among them: the cut thick-walled steel pipe is a metal pipe, and the material is LYP100, LYP160, Q235, Q345, Q460, 20# or 45# and aluminum alloy; the wall thickness range of the thick-walled steel pipe is limited to: 10mm-120mm; combined disc spring Bearing capacity range: 1kN~5000kN, bearing capacity range of single cut thick-walled steel pipe: 10kN~10000kN, two parallel cut thick-walled steel pipe, the bearing capacity will be doubled.

The beneficial effects of the present invention are:

1) The new energy dissipation support has high ductility and strong deformation capacity. Its deformation capacity is positively correlated with the number of rings formed after the incision of the thick-walled steel pipe. Theoretically, the deformation capacity of the support has no upper limit, as long as the number of rings is increased, Its deformability also increases.

2) There are 2-3 lines of defense when the new energy-consuming support is damaged, and 3 lines of defense when the incision thick-walled steel pipes are arranged in pairs (the first line of defense is the fatigue fracture of the first incision thick-walled steel pipe, and the second line of defense is the first line of defense. Two-cut thick-walled steel pipe fatigue fracture, the third line of defense is the limit nut tensile failure), when the cut thick-walled steel pipe is arranged separately, there are two lines of defense (the first line of defense is the fatigue fracture of the first-cut thick-walled steel pipe, the second line of defense is the fatigue fracture of the thick-walled steel pipe The second line of defense is that the limit nut is damaged by tension).

3) The new energy-consuming support and the new self-resetting support have local replaceability, reusability and quick repairability. After earthquake damage, only the incision thick-walled steel pipe needs to be replaced, and other components can be reused. The repair speed is fast and difficult. Small, low repair cost.

4) Since the deformation of the notched thick-walled steel pipe is symmetrical under tension and compression, the new energy dissipation support and the new self-reset support formed by this have strong characteristics such as tension and compression under the action of reciprocating loads.

5) The new energy-consuming support and the new self-resetting support are not sensitive to manufacturing and installation errors. The two mainly rely on the energy consumption of the cut thick-walled steel pipe. As long as the cut thick-walled steel pipe can be axially deformed, the manufacturing and installation errors will not be affected. The mechanical properties of the two new supports are significantly affected. In addition, by adjusting the length of the guide and restraint shafts deep into the outer steel pipe, the support length can be slightly adjusted to adapt to different installation errors.

6) The structure and assembly of the new energy-consuming support and the new self-resetting support are simple, all components can be mass-produced in factories, there is no welding connection during the assembly process, and the assembly and construction speed is fast.

Description of drawings

Fig. 1 is the sectional view of the novel energy-consuming support of the present invention

Fig. 2 is the sectional view of the novel self-resetting support of the present invention

3 is a schematic diagram of the first connector of the present invention

Figure 4 is a schematic diagram of the first outer casing of the present invention

Figure 5 is a schematic diagram of the second flange of the present invention

6 is a schematic diagram of the second outer sleeve of the present invention

Fig. 7 is the schematic diagram of the third outer sleeve of the present invention

Figure 8 is a schematic diagram of the guide shaft of the present invention

FIG. 9 is a schematic diagram of the second connector of the present invention

Figure 10 is a schematic diagram of the first cut thick-walled steel pipe of the present invention

Figure 11 is a schematic diagram of the sealing plate of the present invention

Fig. 12 is the first incision thick-walled steel pipe connecting flange of the present invention

Figure 13 is a sectional view of the new self-resetting support of the present invention with a single arrangement of notched thick-walled steel pipes

Figure 14 is a cross-sectional view of a new type of energy-dissipating support for a thick-walled steel pipe with a single arrangement of slits according to the present invention

Numerals in the figure: 1-first connecting piece; 2-first outer sleeve; 3-second outer sleeve; 4-third outer sleeve; 5-guide shaft; 6-second connecting piece; 7-first incision Thick-walled steel pipe; 8- Disc spring group 9- Thick-walled steel pipe with second cut; 10- Sealing plate; 11- Limit nut; 12- Connecting flange of thick-walled steel pipe with first cut; 13- Second cut with thick-walled steel pipe Steel pipe connecting flange; 14- the first force transmission nut; 15- the second force transmission nut; 16- the first stop nut; 17- the second stop nut; 18- the third stop nut; 19- the fourth stop 20-first connecting bolt; 21-second connecting bolt; 22-third connecting bolt; 23-fourth connecting bolt; 24-fifth connecting bolt; 25-sixth connecting bolt, 26-disc spring , 27-shims.

Detailed ways

Example 1

A new type of energy-dissipating support with replaceable parts using a cut thick-walled steel pipe for energy dissipation, comprising a first connecting piece, a first outer casing, a third outer casing, a guide shaft and a second connecting piece, and a first cut thick-walled steel pipe , The second incision thick-walled steel pipe, the sealing plate, the limit nut, the first incision thick-walled steel pipe connecting flange, the second incision thick-walled steel pipe connecting flange, the third stop nut, the fourth stop nut, the first connecting bolts, second connecting bolts, fourth connecting bolts, fifth connecting bolts and sixth connecting bolts.

The first connector 1 is formed by welding an ear plate 101 and an end plate 102. The ear plate 101 is provided with a circular hole 103 for pin connection, and the end plate 102 is uniformly provided with bolt holes along the circumferential direction. 104 , for the connection of the first connector 1 and the first outer sleeve 2 .

The first outer casing 2 is composed of a first flange 201, a first steel pipe 203, a second flange 204, a second steel pipe 206 and a third flange 207. The inner diameter of the first flange 201 is the same as the first flange 201. The outer diameter of the steel pipe 203 is the same, and it is welded to the left side of the first steel pipe 203 and is provided with bolt holes 202 along the circumferential direction. Connected by the first connecting bolt 20, the right side of the first steel pipe 203 is welded on the second flange 204, and its length should ensure that the right end face of the limit nut 11 and the The distance between the left end surface of the second flange 204 is not less than the limit deformation of the support, and the distance between the left end surface of the limit nut 11 and the right end surface of the end plate 102 is not less than the limit deformation of the support when the guide shaft 5 moves to the left (that is, the support is under pressure). , therefore, the length of the first steel pipe 203 is not less than the sum of twice the limit deformation of the support design and the thickness of the limit nut 11, and the inner diameter of the second flange 204 is greater than the diameter of the guide shaft 5 by 1mm-1.5mm , and evenly provided with through holes 205 along the circumferential direction, the left side of the second steel pipe 206 is welded and connected to the second flange 204, and its inner and outer diameters are the same as the first steel pipe 203, and the third flange 207 is round Ring-shaped, the inner diameter is the same as the outer diameter of the second steel pipe 206, and is welded to the right side of the second steel pipe 206, and bolt holes 208 are uniformly provided along the circumferential direction.

The third outer sleeve 4 is composed of a sixth flange 401 , a fourth steel pipe 403 , a seventh flange 404 and a fifth steel pipe 406 . The inner diameter of the sixth flange 401 is the same as the outer diameter of the fourth steel pipe 403 . , bolt holes 402 are evenly arranged in the circumferential direction. The diameter, quantity and arrangement position of the bolt holes 402 are exactly the same as those of the bolt holes 208. The inner and outer diameters of the fourth steel pipe 403 and the fifth steel pipe 406 are the same as the first The steel pipe 203 and the second steel pipe 206 are the same. The seventh flange 404 has all the same dimensions as the second flange 204. The diameter, number and position of the bolt holes 405 along the circumferential direction are the same as the bolt holes 205. . The fifth steel pipe 406 does not bear external loads, and its length is preferably 100mm-200mm, and a threaded hole 407 is provided on the side away from the seventh flange 404 for installing the fourth connecting bolt 23 . The first outer casing 2 is composed of a first flange 201, a first steel pipe 203, a second flange 204, a second steel pipe 206 and a third flange 208. The inner diameter of the first flange 201 is the same as that of the first flange 201. The outer diameter of the steel pipe 203 is the same, and it is welded to the left side of the first steel pipe 203 and is provided with bolt holes 202 along the circumferential direction. Connected by the first connecting bolt 20, the right side of the first steel pipe 203 is welded on the second flange 204, and its length should ensure that the right end face of the limit nut 11 and the The distance between the left end surface of the second flange 204 is not less than the limit deformation of the support, and the distance between the left end surface of the limit nut 11 and the right end surface of the end plate 102 is not less than the limit deformation of the support when the guide shaft 5 moves to the left (that is, the support is under pressure). , therefore, the length of the first steel pipe 203 is not less than the sum of twice the limit deformation of the support design and the thickness of the limit nut 11, and the inner diameter of the second flange 204 is greater than the diameter of the guide shaft 5 by 1mm-1.5mm , and evenly provided with through holes 205 along the circumferential direction, the left side of the second steel pipe 206 is welded and connected to the second flange 204, and its inner and outer diameters are the same as the first steel pipe 203, and the third flange 207 is round Ring-shaped, the inner diameter is the same as the outer diameter of the second steel pipe 206, and is welded to the right side of the second steel pipe 206, and bolt holes 208 are uniformly provided along the circumferential direction.

The second outer sleeve 3 is composed of a fourth flange 301, a third steel pipe 303 and a fifth flange 304. The inner diameter of the fourth flange 301 is larger than the outer diameter of the thick-walled steel pipe connecting flange 12 of the first incision. There are bolt holes 302 evenly arranged in the circumferential direction. The diameter, quantity and arrangement position of the bolt holes 302 are exactly the same as those of the bolt holes 208. The inner diameter of the third steel pipe 303 is larger than the outer diameter of the disc spring group 8 At least 2mm, the length is equal to the compressed length of the disc spring group 8, the left side is welded on the fourth flange 301, the fifth flange 304 is welded on the right side of the third steel pipe 303, and its inner diameter is equal to the third The outer diameter of the steel pipe 303 is uniformly provided with bolt holes 305 along the circumferential direction.

The third outer sleeve 4 is composed of a sixth flange 401 , a fourth steel pipe 403 , a seventh flange 404 and a fifth steel pipe 406 . The sixth flange 401 is completely the same as the fourth flange 301 in all dimensions. In the same way, the diameter, quantity and position of the bolt holes 402 in the circumferential direction are the same as those of the bolt holes 302. The inner and outer diameters of the fourth steel pipe 403 and the fifth steel pipe 406 are the same as those of the first steel pipe 203, the second steel pipe 206 and the The third steel pipe 303 is the same, and the seventh flange 404 has all the same dimensions as the second flange 204 , and the diameter, number and position of the bolt holes 405 along the circumferential direction are the same as the bolt holes 205 . The fifth steel pipe 406 does not bear external loads, and its length is preferably 100mm-200mm, and a threaded hole 407 is provided on the side away from the seventh flange 404 for installing the fourth connecting bolt 23 .

The guide shaft 5 is made of steel such as Q235, Q345, 20#, 45# or 40Cr. It should be straightened during processing, and its diameter should not be less than 1.2 times the support limit load. The guide shaft 5 yields The calculated value at 1.2 times, that is, plastic deformation should not occur under the action of 1.2 times the support limit load, and its length should not be less than the sum of the lengths of the first outer casing 2 and the third outer casing 4 plus the guide shaft 5 extending into the second connecting piece 6 depth, the left end is provided with a left end thread 501 for installing the limit nut 11, the right end is provided with a right end thread 507 for connecting with the second connecting piece 6, and the middle part is provided with a left thread 503 and a right thread 505. The left thread 503 is used for installing the first cut thick-walled steel pipe 7 and the third backstop nut 18, and the right thread 505 is used for installing the second cutout thick-walled steel pipe 9 and the fourth backstop nut 19. The third stop The specifications and dimensions of the withdrawal nut 18 and the fourth withdrawal nut 19 are the same. Between the left thread 503 and the right thread 505 is an unthreaded section 504 whose length is not greater than the right end of the third withdrawal nut 18 to the fourth withdrawal nut. 19 The distance from the left end, the diameter is the same as the outer diameter of the left thread 503 and the right thread 505, between the left thread 501 and the left thread 503 is the left end unthreaded segment 502, between the right thread 505 and the right thread 507 is the right end unthreaded Segment 506 , the left-end unthreaded segment 502 and the right-end unthreaded segment 506 have the same diameter, and should be smaller than the inner diameters of the third backstop nut 18 and the fourth backstop nut 19 .

The second connecting piece 6 is formed by welding a connecting head 601 and a lug plate 603. A threaded hole 602 is opened in the middle of the connecting head 601. The threaded hole 602 is matched with the thread 507, and the pitch and the inner and outer diameters are the same. The length of the threaded hole 602 is 10mm-20mm smaller than the thickness of the connecting head 601 . A circular hole 604 is provided in the middle of the ear plate 603 for pin connection, and its diameter is the same as that of the circular hole 103 .

The first incision thick-walled steel pipe 7 is made of LYP100, LYP160, Q235, Q345, Q460, 20#, 45# or aluminum alloy round steel or steel pipe, and is the core energy-consuming element, which is characterized in that it is Under the action of the load, the tensile and compressive strengths can be achieved. As energy dissipation elements, they can be arranged in pairs or individually, including a first connection section 701, an energy dissipation section 702 and a second connection section 703. The first connection section 701 is provided with internal threads for fixed connection with the guide shaft 5, the second connection section 703 is provided with external threads for connection with the first incision thick-walled steel pipe connecting flange 12, the energy dissipation section 702, Its inner diameter is 1mm-2mm larger than the diameter of the guide shaft 5, which ensures that the guide shaft 5 can restrain it under the action of axial load and prevent lateral instability. It is made by cutting the incision in its axial direction, including the incision 704, the incision 705 and the annular ring 706. The incision 704 and the incision 705 are symmetrically arranged, that is, the incision is not cut through, and the incision 704 and the incision 705 are perpendicular to each other. , a circular ring 706 is formed between the two. The circular ring 706 undergoes plastic deformation under the action of the axial load to dissipate energy. The rigidity of the thick-walled steel pipe 7 is proportional to the thickness, the cube of the middle diameter is inversely proportional to the stiffness of the thick-walled steel pipe 7 of the first slit, and the number of annular rings 706 is inversely proportional to the stiffness of the thick-walled steel pipe 7 of the first slit, and The deformation capacity is proportional to the rigidity, bearing capacity and deformation capacity of the first notch thick-walled steel pipe 7, which can be flexibly adjusted by changing the middle diameter, axial thickness, radial width and quantity of the annular ring 706, thereby increasing the number of annular rings It can significantly increase its deformation capacity. Increasing the axial thickness of the ring can significantly increase its stiffness and bearing capacity. For example, the diameter of the ring made of Q235 steel is 111mm, the radial width of the ring is 29mm, and the axial Thick-walled steel pipe with a thickness of 15mm and a number of rings of 8 has an ultimate bearing capacity of about 160kN and an ultimate deformation of about 80mm.

The second incision thick-walled steel pipe 9, the inner diameter of the energy dissipation section and the outer diameter of the connecting section are exactly the same as the first incision thick-walled steel pipe 7, and its material strength, ring diameter, ring thickness, ring ring The radial width and the number of annular rings can be exactly the same as those of the first incision thick-walled steel pipe 7, or different parameters can be used. By increasing the axial thickness of the annular ring, the second incision thick-walled steel pipe 9 has greater rigidity and bearing capacity, so that the strength of the third outer sleeve 4 can be fully utilized.

The sealing plate 10, which does not bear external loads, is used to block the right port of the third outer sleeve 4 to prevent debris from entering the support. The outer diameter of the bolt hole 1002 is the same as that of the first outer sleeve 2 , the second outer sleeve 3 and the third outer sleeve 4 . The diameter of the circular hole 1001 is 0.5mm-1.5mm larger than the diameter of the guide shaft 5 . The bolt holes 1002 are evenly arranged along the circumferential direction for installing the fourth connecting bolt 23 .

The limit nut 11 is installed on the left end of the guide shaft 5, and is used to limit the guide shaft 5 to be pulled out from the inside of the support when both the first cut thick-walled steel pipe 7 and the second cut thick-walled steel pipe 9 are damaged, which is the first part of the support. Three lines of defense.

The first incision thick-walled steel pipe connecting flange 12 is convex and includes internal threaded holes 1201 and threaded holes 1202 evenly distributed along the circumferential direction. The two connecting sections 703 are threadedly connected, and the threaded holes 1202 are used to connect the first incision thick-walled steel pipe connecting flange 12 and the first outer casing 2 together through the fifth connecting bolts 24 .

The second notch thick-walled steel pipe connecting flange 13 has the same size as the first notch thick-walled steel pipe connecting flange 12 .

The third backstop nut 18 is installed on the right side of the first notch thick-walled steel pipe 7 to prevent the first notch thick-walled steel pipe 7 from being displaced relative to the guide shaft 5 under load.

The fourth backstop nut 19 is installed on the left side of the second notch thick-walled steel pipe 9 to prevent displacement of the second notch thick-walled steel pipe 9 relative to the guide shaft 5 under load.

The first connecting bolts 20 are used to fix the first connecting piece 1 and the first outer sleeve 2, and the number and diameter of the first connecting bolts 20 should be determined according to the designed bearing capacity of the support.

The second connecting bolts 21 are used to fix the first outer sleeve 2 and the third outer sleeve 4 .

The fourth connecting bolts 23 are used to fix the sealing plate 10 and the third outer sleeve 4 .

The fifth connecting bolts 24 are used for fixing the first notch thick-walled steel pipe connecting flange 12 and the first outer sleeve 2 .

The sixth connecting bolt 25 is used for fixing the second notch thick-walled steel pipe connecting flange 13 and the third outer sleeve 4 .

How to install and use:

1. Screw the third stop nut 18 and the fourth stop nut 19 from the left end and the right end of the guide shaft 5 to the middle of the guide shaft 5;

2. Mark the installation and positioning lines of the thick-walled steel pipe 7 with the first incision and the thick-walled steel pipe with the second incision on the guide shaft 5. The distance between the installation positioning line of the thick-walled steel pipe 7 with the first incision and the left end of the guide shaft 5 is limited The thickness of the nut 11, the thickness of the second flange 204, the length of the thick-walled steel pipe 7 of the first cut and the limit deformation of the support, the distance between the installation positioning line of the thick-walled steel pipe 9 of the second cut and the right end of the guide shaft 5 is the guide The depth of the shaft 5 extending into the second connecting piece 6, the limit deformation of the support, the thickness of the sealing plate 10, the sum of the length of the fifth steel pipe 406 and the thickness of the seventh flange 404;

3. Screw the first cut thick-walled steel pipe 7 from the left end of the guide shaft 5, so that the left end coincides with the installation positioning line of the first cut thick-walled steel pipe 7, and screw the second cut thick-walled steel pipe 9 from the right end of the guide shaft. Enter, so that the right end coincides with the installation positioning line of the second incision thick-walled steel pipe 9;

4. Screw the third stop nut 18 and the fourth stop nut 19 to the right end of the first cut thick-walled steel pipe 7 and the left end of the second cut thick-walled steel pipe 9 and lock them;

5. Install the first incision thick-walled steel pipe connecting flange 12 and the second incision thick-walled steel pipe connecting flange 13;

6. Insert the first outer sleeve 2 from the left end of the guide shaft, so that the right end of the second flange 204 is in contact with the left end of the thick-walled steel pipe connecting flange 12 of the first incision, and the fifth connecting bolt 24 is installed;

7. Install the limit nut 11;

8. Insert the third outer sleeve 4 from the right end of the guide shaft 5, and install the second connecting bolt 21;

9. Install the sixth connecting bolt 25;

10. Insert the sealing plate 10 from the right end of the guide shaft 5, and install the fourth connecting bolt 23;

11. Install the first connector 1 and the second connector 6;

12. After a large earthquake, only the energy-consuming parts in the new energy-consuming support can be replaced without the need for overall replacement. The replacement method is to first remove the new-type energy-consuming support from the building installation site, and then follow the Disassemble in the reverse order of assembly, replace the thick-walled steel pipe 7 with the first incision and the thick-walled steel pipe 9 with the second incision, and then reassemble to restore the use function of the new energy-consuming support.

Example 2

A new type of self-resetting support with replaceable parts for energy consumption by incision thick-walled steel pipes, comprising a first connector, a first outer sleeve, a second outer sleeve, a third outer sleeve, a guide shaft, a second connector, a first Notched thick-walled steel pipe, disc spring group, second notched thick-walled steel pipe, sealing plate, limit nut, first force transfer nut, second force transfer nut, first stop nut, second stop nut, first Three stop nuts, fourth stop nuts, first connection bolts, second connection bolts, third connection bolts, fourth connection bolts, fifth connection bolts and sixth connection bolts.

The first connector 1 is formed by welding an ear plate 101 and an end plate 102. The ear plate 101 is provided with a circular hole 103 for pin connection, and the end plate 102 is uniformly provided with bolt holes along the circumferential direction. 104, for connecting the first connector and the first outer sleeve.

The first outer casing 2 is composed of a first flange 201, a first steel pipe 203, a second flange 204, a second steel pipe 206 and a third flange 208. The inner diameter of the first flange 201 is the same as that of the first flange 201. The outer diameter of the steel pipe 203 is the same, and it is welded to the left side of the first steel pipe 203 and is provided with bolt holes 202 along the circumferential direction. Connected by the first connecting bolt 18, the right side of the first steel pipe 203 is welded on the second flange 204, and the length of the first steel pipe 203 should ensure that the right end face of the limit nut 11 and the The distance between the left end surface of the second flange 204 is not less than the limit deformation of the support, and the distance between the left end surface of the limit nut 11 and the right end surface of the end plate 102 is not less than the limit deformation of the support when the guide shaft 5 moves to the left (that is, the support is under pressure). , therefore, the length of the first steel pipe 203 is not less than the sum of twice the limit deformation of the support design and the thickness of the limit nut 11, and the inner diameter of the second flange 204 is greater than the diameter of the guide shaft 5 by 1mm-1.5mm , and evenly provided with through holes 205 along the circumferential direction, the left side of the second steel pipe 206 is welded and connected to the second flange 204, and its inner and outer diameters are the same as the first steel pipe 203, and the third flange 207 is round Ring-shaped, the inner diameter is the same as the outer diameter of the second steel pipe 206, and is welded to the right side of the second steel pipe 206, and bolt holes 208 are uniformly provided along the circumferential direction.

The second outer sleeve 3 is composed of a fourth flange 301, a third steel pipe 303 and a fifth flange 304. The inner diameter of the fourth flange 301 is larger than the outer diameter of the thick-walled steel pipe connecting flange 12 of the first incision. There are bolt holes 302 evenly arranged in the circumferential direction. The diameter, quantity and arrangement position of the bolt holes 302 are exactly the same as those of the bolt holes 208. The inner diameter of the third steel pipe 303 is larger than the outer diameter of the disc spring group 8 At least 2mm, the length is equal to the compressed length of the disc spring group 8, the left side is welded on the fourth flange 301, the fifth flange 304 is welded on the right side of the third steel pipe 303, and its inner diameter is equal to the third The outer diameter of the steel pipe 303 is uniformly provided with bolt holes 305 along the circumferential direction.

The third outer sleeve 4 is composed of a sixth flange 401 , a fourth steel pipe 403 , a seventh flange 404 and a fifth steel pipe 406 . The sixth flange 401 is completely the same as the fourth flange 301 in all dimensions. Similarly, the diameter, quantity and position of the bolt holes 402 in the circumferential direction are the same as those of the bolt holes 302. The inner and outer diameters of the fourth steel pipe 403 and the fifth steel pipe 405 are the same as those of the first steel pipe 203, the second steel pipe 206 and the The third steel pipe 303 is the same, and the seventh flange 404 has all the same dimensions as the second flange 204 , and the diameter, number and position of the bolt holes 405 along the circumferential direction are the same as the bolt holes 205 . The fifth steel pipe 406 does not bear external loads, and its length is preferably 100mm-200mm, and a threaded hole 407 is provided on the side away from the seventh flange 404 for installing the fourth connecting bolt 23 .

The guide shaft 5 is made of Q235, Q345, 20#, 45# or 40Cr steel. It should be straightened during processing, and its minimum outer diameter should not be smaller than the guide shaft 5 under the action of 1.2 times the support limit load. The calculated value at yield, that is, plastic deformation should not occur under the action of 1.2 times the ultimate load of support, and its length should not be less than the sum of the lengths of the first outer casing 2, the second outer casing 3 and the third outer casing 4 plus the guide shaft 5. The depth of extending into the second connector 6, the left end is provided with a thread 501 for installing the limit nut 11, the right end is provided with a thread 507 for connecting with the second connector 6, and the middle part is provided with a thread 503 and a thread 505 , the outer diameter of the thread 503 and the thread 505 should be smaller than the inner diameter of the disc spring group 8 by 1mm-2mm, the thread 503 is connected with the first force transmission nut 14 and the first stop nut 16, A second force transfer nut 15 and a second stop nut 17 are connected, both of which are used to maintain the initial preload of the disc spring group 8. The first force transfer nut 14 and the second force transfer nut 15 are identical in size and specification , the dimensions and specifications of the first backstop nut 16 and the second backstop nut 17 are exactly the same, the first force transfer nut 14 , the second force transfer nut 15 , the first backstop nut 16 and the second backstop nut 17 has the same inner diameter and pitch, and between the thread 503 and the thread 505 is a non-threaded section 504, the length of which should be less than the preloaded length of the disc spring group 8, and the diameter is the same as the outer diameter of the thread 503 and the thread 505, Between the thread 501 and the thread 503 is an unthreaded section 502, and between the thread 505 and the thread 507 is an unthreaded section 506. The unthreaded section 502 and the unthreaded section 506 have the same diameter and should be smaller than the first pass. The inner diameter of the force nut 14 , the second force transmission nut 15 , the first backstop nut 16 and the second backstop nut 17 .

The second connecting piece 6 is formed by welding a connecting head 601 and a lug plate 603. A threaded hole 602 is opened in the middle of the connecting head 601. The threaded hole 602 is matched with the thread 507, and the pitch and the inner and outer diameters are the same. The length of the threaded hole 602 is 10mm-20mm smaller than the thickness of the connecting head 601 . A circular hole 604 is provided in the middle of the ear plate 603 for pin connection, and its diameter is the same as that of the circular hole 103 .

The first incision thick-walled steel pipe 7 is made of LYP100, LYP160, Q235, Q345, Q460, 20#, 45# or aluminum alloy round steel or steel pipe, and is the core energy-consuming element, which is characterized in that it is Under the action of the load, the tensile and compressive strengths can be achieved. As energy dissipation elements, they can be arranged in pairs or individually, including a first connection section 701, an energy dissipation section 702 and a second connection section 703. The first connection section 701 is provided with internal threads for fixed connection with the guide shaft 5, the second connection section 703 is provided with external threads for connection with the first incision thick-walled steel pipe connecting flange 12, the energy dissipation section 702, Its inner diameter is 1mm-2mm larger than the diameter of the guide shaft 5, which ensures that the guide shaft 5 can restrain it under the action of axial load and prevent lateral instability. It is made by cutting the incision in its axial direction, including the incision 704, the incision 705 and the annular ring 706. The incision 704 and the incision 705 are symmetrically arranged, that is, the incision is not cut through, and the incision 704 and the incision 705 are perpendicular to each other. , a circular ring 706 is formed between the two. The circular ring 706 undergoes plastic deformation under the action of the axial load to dissipate energy. The rigidity of the thick-walled steel pipe 7 is proportional to the thickness, the cube of the middle diameter is inversely proportional to the stiffness of the thick-walled steel pipe 7 of the first slit, and the number of annular rings 706 is inversely proportional to the stiffness of the thick-walled steel pipe 7 of the first slit, and The deformation capacity is proportional to the rigidity, bearing capacity and deformation capacity of the first notch thick-walled steel pipe 7, which can be flexibly adjusted by changing the middle diameter, axial thickness, radial width and quantity of the annular ring 706, thereby increasing the number of annular rings It can significantly increase its deformation capacity. Increasing the axial thickness of the ring can significantly increase its stiffness and bearing capacity. For example, the diameter of the ring made of Q235 steel is 111mm, the radial width of the ring is 29mm, and the axial Thick-walled steel pipe with a thickness of 15mm and a number of rings of 8 has an ultimate bearing capacity of about 160kN and an ultimate deformation of about 80mm.

The disc spring group 8 is composed of a disc spring 26 and a washer 27. The combination method of the disc spring 26 should be a paired combination or a composite combination. The washer 27 is at least at the left and right ends of the disc spring group 8. Arrange one piece of each. When the combined total height of the disc springs 26 is greater than 3 times its outer diameter, a washer should be arranged in the middle. The thickness of the washer 27 should be at least 5mm greater than the thickness of the disc springs 26. The initial preload of the disc spring group 8 should be greater than twice the sum of the yield loads of the first notch thick-walled steel pipe 7 and the second notch thick-walled steel pipe 9, so that the support has a flag-shaped hysteresis curve and can eliminate residual displacement.

The second incision thick-walled steel pipe 9, the inner diameter of the energy dissipation section and the outer diameter of the connecting section are exactly the same as the first incision thick-walled steel pipe 7, and its material strength, ring diameter, ring thickness, ring ring The radial width and the number of annular rings can be exactly the same as those of the first incision thick-walled steel pipe 7, or different parameters can be used. By increasing the thickness of the annular ring, the second incision thick-walled steel pipe 9 has greater rigidity and bearing capacity. Therefore, the strength of the third outer sleeve 4 can be fully utilized. The third outer sleeve 4 has the smallest force among all the outer sleeves, and the force of the outer sleeve decreases from left to right. This is because the first The outer sleeve bears all the forces, including the reaction force of the disc spring, the reaction force of the thick-walled steel pipe of the first incision and the reaction force of the thick-walled steel pipe of the second incision. The reaction force and the reaction force of the second incision thick-walled steel pipe are the second in force, and the third outer casing only bears the reaction force of the second incision thick-walled steel pipe, and the force is the smallest.

The sealing plate 10, which does not bear external loads, is used to block the right port of the third outer sleeve 4 to prevent debris from entering the support. The outer diameter of the bolt hole 1002 is the same as that of the first outer sleeve 2 , the second outer sleeve 3 and the third outer sleeve 4 . The diameter of the circular hole 1001 is 0.5mm-1.5mm larger than the diameter of the guide shaft 5 . The bolt holes 1002 are evenly arranged along the circumferential direction for installing the fourth connecting bolt 23 .

The limit nut 11 is installed on the left end of the guide shaft 5, and is used to limit the guide shaft 5 to be pulled out from the inside of the support when both the first cut thick-walled steel pipe 7 and the second cut thick-walled steel pipe 9 are damaged, which is the first part of the support. Three lines of defense.

The first incision thick-walled steel pipe connecting flange 12 is convex and includes internal threaded holes 1201 and threaded holes 1202 evenly distributed along the circumferential direction. The two connecting sections 703 are threadedly connected, and the threaded holes 1202 are used to connect the first incision thick-walled steel pipe connecting flange 12 and the first outer casing 2 together through the fifth connecting bolts 24 .

The second notch thick-walled steel pipe connecting flange 13 has the same size as the first notch thick-walled steel pipe connecting flange 12 .

The first force transmission nut 14, whose outer diameter is smaller than the diameter of the circumcircle of the fourth flange 301, is installed on the guide shaft 5, and is located on the left side of the disc spring group 8, and the right end is flush with the right end of the fourth flange 301.

The second force transmission nut 15 has the same size as the first force transmission nut 14 and is symmetrically arranged on the right side of the disc spring group 8 .

The first backstop nut 16 is installed on the left side of the first force transmission nut 14 to prevent the first force transmission nut 14 from loosening under the load.

The second backstop nut 17 is installed on the right side of the second force-transmitting nut 15 to prevent the second force-transmitting nut 15 from loosening under the load.

The third backstop nut 18 is installed on the right side of the first notch thick-walled steel pipe 7 to prevent the first notch thick-walled steel pipe 7 from being displaced relative to the guide shaft 5 under load.

The fourth backstop nut 19 is installed on the left side of the second notch thick-walled steel pipe 9 to prevent displacement of the second notch thick-walled steel pipe 9 relative to the guide shaft 5 under load.

The first connecting bolts 20 are used to fix the first connecting piece 1 and the first outer sleeve 2, and the number and diameter of the first connecting bolts 20 should be determined according to the designed bearing capacity of the support.

The second connecting bolts 21 are used for fixing the first outer sleeve 2 and the second outer sleeve 3 .

The third connecting bolts 22 are used to fix the second outer sleeve 3 and the third outer sleeve 4 .

The fourth connecting bolts 23 are used to fix the sealing plate 10 and the third outer sleeve 4 .

The fifth connecting bolt 24 is used for fixing the first cut thick-walled steel pipe 7 and the first outer casing 2 .

The sixth connecting bolt 25 is used to fix the second incision thick-walled steel pipe 9 and the third outer casing 4

How to install and use:

1. Pre-press the disc spring group 8 to the design pre-pressure and maintain the pre-pressure through the pre-pressure holding device;

2. Mark the installation positioning line of the disc spring group 8 on the guide shaft 5. The distance between the installation positioning line of the disc spring group 8 and the left end of the guide shaft 5 is the length of the first outer sleeve 2 and the thickness of the fourth flange 301 The sum is subtracted from the limit deformation of the support;

3. Insert the disc spring set 8 into the guide shaft 5 so that the left end of the disc spring set 8 coincides with its installation positioning line, then install the first force transmission nut 14 and the second force transmission nut 15, The pre-pressure is transferred from the pre-pressure holding device to the guide shaft 5, the first force-transmitting nut 14 and the second force-transmitting nut 15;

4. Install the first backstop nut 16 and the second backstop nut 17 from both ends of the guide shaft 5;

5. Install the third stop nut 18 and the fourth stop nut 19;

6. Mark the installation and positioning lines of the thick-walled steel pipe 7 with the first incision and the thick-walled steel pipe 9 with the second incision on the guide shaft 5. The distance between the installation positioning line of the thick-walled steel pipe 7 with the first incision and the left end of the guide shaft 5 is limited. The thickness of the nut 11, the thickness of the second flange 204, the length of the thick-walled steel pipe 7 of the first cut and the limit deformation of the support, the distance between the installation positioning line of the thick-walled steel pipe 9 of the second cut and the right end of the guide shaft 5 is the guide The depth of the shaft 5 extending into the second connecting piece 6, the limit deformation of the support, the thickness of the sealing plate 10, the sum of the length of the fifth steel pipe 406 and the thickness of the seventh flange 404;

7. Screw the first cut thick-walled steel pipe 7 from the left end of the guide shaft 5, so that the left end coincides with the installation positioning line of the first cut thick-walled steel pipe 7, and screw the second cut thick-walled steel pipe 9 from the right end of the guide shaft. Enter, so that the right end coincides with the installation positioning line of the second incision thick-walled steel pipe 9;

8. Screw the third stop nut 18 and the fourth stop nut 19 to the right end of the first cut thick-walled steel pipe 7 and the left end of the second cut thick-walled steel pipe 9 and lock them;

9. Install the first notch thick-walled steel pipe connecting flange 12 on the left end of the first notch thick-walled steel pipe 7, and install the second notch thick-walled steel pipe connecting flange 13 on the right end of the second notch thick-walled steel pipe 9;

10. Insert the second outer sleeve 3 from the left end of the guide shaft 5 until the fourth flange 301 is in contact with the disc spring group 8;

11. Insert the third outer sleeve 4 from the right end of the guide shaft, and then fasten the third connecting bolt 22;

12. Insert the first outer sleeve 2 from the left end of the guide shaft 5, and fasten the second connecting bolt 21;

13. Pass the sixth connecting bolt 25 through the bolt hole 405, screw it into the second incision thick-walled steel pipe connecting flange 13 to fix it, pass the fifth connecting bolt 24 through the through hole 205, and screw it into the first incision thick-walled steel pipe connection The threaded hole 1202 of the flange 12 is fixed;

14. Install the limit nut 11;

15. Insert the sealing plate 10 from the right end of the guide shaft 5 and align it with the hole position, and install the fourth connecting bolt 23;

16. Install the first connecting piece 1, tighten the first connecting bolt 20, and at the same time screw the second connecting piece 6 from the right end of the guide shaft 5 into the installation;

17. After a large earthquake, only the energy-consuming parts in the self-resetting support can be replaced, and there is no need to replace the self-resetting support as a whole. The replacement method is to first remove the self-resetting support from the building installation site, and then follow the same Disassemble in the reverse order of assembly, replace the thick-walled steel pipe 7 of the first incision and the thick-walled steel pipe 9 of the second incision, and then reassemble, the use function of the self-resetting support can be restored.

In addition, it should be explained separately: the reset system and the energy consumption system are combined into one, the structure of the damper is simplified, and the length is reduced; the disc spring system is always under pressure, and the damper is strong in tension and compression; it is detachable and replaceable, and the shock Afterwards, only the friction plate needs to be replaced, which saves materials, has fast maintenance speed and can be reused.

Claims (10)

1. A replaceable component type energy dissipation support is characterized by comprising a first connecting piece (1), a first outer sleeve (2), a guide shaft (5), a second connecting piece (6), a first cut thick-wall steel pipe (7), a sealing plate (10), a limiting nut (11), a first cut thick-wall steel pipe connecting flange (12), a third stopping nut (18), a first connecting bolt (20) and a fifth connecting bolt (24); one end of the first outer sleeve (2) is connected with a first connecting piece (1);

a fixed connecting disc is arranged in the first outer sleeve (2), penetrates through the guide shaft (5) and is connected with the guide shaft (5) through a first cut thick-wall steel pipe connecting flange (12), a second connecting piece (6) is arranged at one end of the guide shaft (5), a connecting limiting nut (11) is arranged at the other end of the guide shaft (5), and the limiting nut (11) is blocked at one side of the fixed connecting disc; a first cut thick-wall steel pipe (7) is sleeved on the guide shaft (5), one end of the first cut thick-wall steel pipe (7) is clamped and blocked at the other side of the fixed connecting disc, and the other end of the first cut thick-wall steel pipe (7) is clamped and blocked through a third retaining nut (18).

2. A replaceable component type self-resetting support is characterized by comprising the replaceable component type energy dissipation support as claimed in claim 1, and further comprising a second outer sleeve (3), wherein a fixed connecting disc is arranged in the second outer sleeve (3), the second outer sleeve (3) is spliced with the first outer sleeve (2), a guide shaft (5) penetrates through the second outer sleeve (3), a disc spring (26) or a disc spring group (8) is sleeved on the guide shaft (5), and two ends of the disc spring (26) or the disc spring group (8) are respectively clamped between the fixed connecting discs of the adjacent sleeves.

3. Self-restoring support according to claim 2, characterized in that the disk spring (26) or the set of disk springs (8) is provided on both sides with a first cut-out thick-walled steel tube (7) and a second cut-out thick-walled steel tube (9).

4. The self-resetting support of replaceable component type according to claim 3, wherein the first cut thick-walled steel tube (7) and the second cut thick-walled steel tube (9) are provided with a plurality of sets of cuts in a staggered manner; the first cut thick-wall steel pipe (7) or the second cut thick-wall steel pipe (9) is divided into a first connecting section (701), an energy consumption section (702) and a second connecting section (703), the first connecting section (701) is provided with internal threads and is used for being fixedly connected with the guide shaft (5), the second connecting section (703) is provided with external threads and is used for being connected with the first cut thick-wall steel pipe connecting flange (12), the energy consumption section (702) is larger than the guide shaft (5) in diameter by 1-2 mm, and the length of the second cut thick-wall steel pipe (9) is larger than or equal to that of the first cut thick-wall steel pipe (7).

5. The self-resetting support of replaceable component type according to claim 2, wherein the guide shaft (5) is provided with a left end thread (501) at the left end for installing the limit nut (11), a right end thread (507) at the right end for connecting with the second connector (6), a left thread (503) and a right thread (505) at the middle part, the left thread (503) is used for installing the first cut thick-wall steel pipe (7) and the third retaining nut (18), the right thread (505) is used for installing the second cut thick-wall steel pipe (9) and the fourth retaining nut (19), the third retaining nut (18) and the fourth retaining nut (19) have the same specification and size, a thread-free section (504) is arranged between the left thread (503) and the right thread (505), and a thread-free section (502) is arranged between the left end thread (501) and the left thread (503), a right-end unthreaded section (506) is arranged between the right thread (505) and the right-end thread (507); the first connecting piece (1) is formed by welding an ear plate (101) and an end plate (102), a round hole (103) is formed in the ear plate (101) and used for pin shaft connection, and bolt holes (104) are uniformly formed in the end plate (102) along the circumferential direction and used for connecting the first connecting piece and a first outer sleeve; second connecting piece (6) is formed by connector (601) and otic placode (603) welding, threaded hole (602) is opened at connector (601) middle part, threaded hole (602) 6 and right-hand member screw thread (507) supporting connection, otic placode (603) middle part is equipped with round hole (604) for round pin hub connection, its diameter is the same with round hole (103).

6. The self-resetting support of claim 2, wherein the first outer sleeve (2) is formed by combining a first flange (201), a first steel pipe (203), a second flange (204), a second steel pipe (206) and a third flange (207), the inner diameter of the first flange (201) is the same as the outer diameter of the first steel pipe (203), the first flange is fixedly connected to the left side of the first steel pipe (203) and is circumferentially provided with bolt holes (202), the bolt holes (202) correspond to the bolt holes (104) formed in the first connecting member (1) and are connected through first connecting bolts (20), the right side of the first steel pipe (203) is fixedly connected to the second flange (204), the second flange (204) is uniformly provided with through holes (205) along a central matrix, the left side of the second steel pipe (206) is fixedly connected to the second flange (204), and the inner diameter and the outer diameter of the second steel pipe (206) are the same as the first steel pipe (203), the third flange (207) is annular, the inner diameter of the third flange is the same as the outer diameter of the second steel pipe (206), the third flange is connected to the right side of the second steel pipe (206) in a welding mode, and bolt holes (208) are uniformly formed in the third flange along the annular direction;

the third outer sleeve (4) is composed of a sixth flange (401), a fourth steel pipe (403), a seventh flange (404) and a fifth steel pipe (406), the inner diameter of the sixth flange (401) is the same as the outer diameter of the fourth steel pipe (403), bolt holes (402) are uniformly formed in the circumferential direction, the bolt holes (402) correspond to the bolt holes (208), the inner diameter and the outer diameter of the fourth steel pipe (403) and the inner diameter of the fifth steel pipe (406) are the same as those of the first steel pipe (203) and the second steel pipe (206), the size of the seventh flange (404) is the same as those of the second flange (204), and the diameter, the number and the position of the bolt holes (405) formed in the circumferential direction are the same as those of the bolt holes (205); the length of the fifth steel pipe (406) is preferably 100mm-200mm, and a threaded hole (407) is formed in one side, away from the seventh flange (404), and is used for mounting a fourth connecting bolt (23).

7. The self-restoring support of replaceable component type according to claim 2, wherein the closing plate (10) comprises a central circular hole (1001) and bolt holes (1002) arranged along a circumferential direction, the right end of the third outer sleeve (4) is blocked, the bolt holes (1002) are uniformly arranged along a circumferential direction and are used for installing the fourth connecting bolts (23); the device also comprises a limit nut (11), wherein the limit nut (11) is positioned at the left end of the guide shaft (5);

the first cut thick-wall steel pipe connecting flange (12) comprises internal threaded holes (1201) and threaded holes (1202) which are uniformly distributed in the circumferential direction, the internal threaded holes (1201) are in threaded connection with the second connecting section (703) of the first cut thick-wall steel pipe, and the threaded holes (1202) are used for connecting the first cut thick-wall steel pipe connecting flange (12) and the first outer sleeve (2) together through fifth connecting bolts (24);

the second cut thick-wall steel pipe connecting flange (13) is the same as the first cut thick-wall steel pipe connecting flange (12) in size; the third retaining nut (18) is mounted on the right side of the first notched thick-walled steel pipe (7), and the fourth retaining nut (19) is mounted on the left side of the second notched thick-walled steel pipe (9);

the first connecting bolt (20) is used for fixing the first connecting piece (1) and the first outer sleeve (2), and the second connecting bolt (21) is used for fixing the first outer sleeve (2) and the second outer sleeve (3) or the third outer sleeve (4); the fourth connecting bolt (23) is used for fixing the sealing plate (10) and the third outer sleeve (4); the fifth connecting bolt (24) is used for fixing the first cut thick-wall steel pipe connecting flange (12) and the first outer sleeve (2); and the sixth connecting bolt (25) is used for fixing the second notched thick-walled steel pipe connecting flange (13) and the third outer sleeve (4).

8. A self-resetting support of the replaceable part type according to claim 2, characterised in that the first (2) and third (4) outer sleeves are provided with closure plates (10).

9. The method for using the replaceable component type energy dissipation brace as recited in claim 1, comprising the steps of

S1, screwing the third stopping nut (18) and the fourth stopping nut (19) into the middle part of the guide shaft (5) from the left end and the right end respectively;

s2, marking installation positioning lines of a first cut thick-wall steel pipe (7) and a second cut thick-wall steel pipe (9) on the guide shaft (5), wherein the distance from the installation positioning line of the first cut thick-wall steel pipe (7) to the left end of the guide shaft (5) is the sum of the thickness of a limiting nut (11), the thickness of a second flange (204), the length of the first cut thick-wall steel pipe (7) and the support limit deformation, and the distance from the installation positioning line of the second cut thick-wall steel pipe (9) to the right end of the guide shaft (5) is the sum of the depth of the guide shaft (5) extending into a second connecting piece (6), the support limit deformation, the thickness of a sealing plate (10), the length of a fifth steel pipe (406) and the thickness of a seventh flange (404);

s3, screwing the first cut thick-walled steel pipe (7) from the left end of the guide shaft (5) to enable the left end of the first cut thick-walled steel pipe to be overlapped with the installation positioning line of the first cut thick-walled steel pipe (7), screwing the second cut thick-walled steel pipe (9) from the right end of the guide shaft to enable the right end of the second cut thick-walled steel pipe to be overlapped with the installation positioning line of the second cut thick-walled steel pipe (9);

s4, screwing a third retaining nut (18) and a fourth retaining nut (19) to the right end of the first cut thick-walled steel pipe (7) and the left end of the second cut thick-walled steel pipe (9) respectively and locking;

s5, mounting a first cut thick-wall steel pipe connecting flange (12) and a second cut thick-wall steel pipe connecting flange (13);

s6, sleeving the first outer sleeve (2) from the left end of the guide shaft, enabling the right end of the second flange (204) to be in contact with the left end of the first cut thick-wall steel pipe connecting flange (12), and installing a fifth connecting bolt (24);

s7, mounting a limit nut (11);

s8, sleeving the third outer sleeve (4) from the right end of the guide shaft (5), and installing a second connecting bolt (21);

s9, mounting a sixth connecting bolt (25);

s10, sleeving the sealing plate (10) from the right end of the guide shaft (5), and installing a fourth connecting bolt (23);

s11, mounting a first connecting piece (1) and a second connecting piece (6);

and S12, only energy consumption components in the novel energy consumption support are replaced without integral replacement, and the replacement method is that the energy consumption support is firstly disassembled, then the energy consumption support is disassembled according to the sequence opposite to the assembly of the energy consumption support, and the first cut thick-wall steel pipe (67) and the second cut thick-wall steel pipe (9) are replaced and then are reassembled.

10. The method of using a self-restoring support of the replaceable component type according to claim 2, comprising the steps of

S1, pre-pressing the disc spring (26) or the disc spring group (8) to a design pre-pressing force and keeping the pre-pressing force through a pre-pressing force keeping device;

s2, marking an installation positioning line of the disc spring group (8) on the guide shaft (5), wherein the distance between the installation positioning line of the disc spring group (8) and the left end of the guide shaft (5) is the sum of the length of the first outer sleeve (2) and the thickness of the fourth flange (301) and then subtracting the limited deformation of the support;

s3, penetrating the disc spring group (8) into the guide shaft (5), enabling the left end of the disc spring group (8) to be overlapped with an installation positioning line of the disc spring group, then installing a first force transmission nut (14) and a second force transmission nut (15), and converting the pre-pressure of the disc spring group (8) from the pre-pressure holding device to the guide shaft (5), the first force transmission nut (14) and the second force transmission nut (15);

s4, mounting a first retaining nut (16) and a second retaining nut (17) from two ends of the guide shaft (5) respectively;

s5, mounting a third stopping nut (18) and a fourth stopping nut (19);

s6, marking installation positioning lines of a first cut thick-wall steel pipe (7) and a second cut thick-wall steel pipe (9) on the guide shaft (5), wherein the distance from the installation positioning line of the first cut thick-wall steel pipe (7) to the left end of the guide shaft (5) is the sum of the thickness of a limiting nut (11), the thickness of a second flange (204), the length of the first cut thick-wall steel pipe (7) and the support limit deformation, and the distance from the installation positioning line of the second cut thick-wall steel pipe (9) to the right end of the guide shaft (5) is the sum of the depth of the guide shaft (5) extending into a second connecting piece (6), the support limit deformation, the thickness of a sealing plate (10), the length of a fifth steel pipe (406) and the thickness of a seventh flange (404);

s7, screwing the first cut thick-walled steel pipe (7) from the left end of the guide shaft (5) to make the left end coincide with the installation positioning line of the first cut thick-walled steel pipe (7), and screwing the second cut thick-walled steel pipe (9) from the right end of the guide shaft to make the right end coincide with the installation positioning line of the second cut thick-walled steel pipe (9);

s8, screwing a third retaining nut (18) and a fourth retaining nut (19) to the right end of the first cut thick-walled steel pipe (7) and the left end of the second cut thick-walled steel pipe (9) respectively and locking;

s9, mounting the first notched thick-walled steel pipe connection flange (12) on the left end of the first notched thick-walled steel pipe (7), and mounting the second notched thick-walled steel pipe connection flange (13) on the right end of the second notched thick-walled steel pipe (9);

s10, sleeving the second outer sleeve (3) from the left end of the guide shaft (5) until the fourth flange (301) is contacted with the disc spring group (8);

s11, sleeving a third outer sleeve (4) from the right end of the guide shaft, and then fastening a third connecting bolt (22);

s12, sleeving the first outer sleeve (2) from the left end of the guide shaft (5) and fastening a second connecting bolt (21);

s13, a sixth connecting bolt (25) penetrates through the bolt hole (405) and is screwed into the second cut thick-wall steel pipe connecting flange (13) for fixing, and a fifth connecting bolt (24) penetrates through the through hole (205) and is screwed into the threaded hole (1202) of the first cut thick-wall steel pipe connecting flange (12) for fixing;

s14, mounting a limit nut (11);

s15, sleeving a sealing plate (10) from the right end of the guide shaft (5) and aligning the sealing plate with a hole site, and installing a fourth connecting bolt (23);

s16, mounting the first connecting piece (1), fastening the first connecting bolt (20), and screwing the second connecting piece (6) into the guide shaft (5) from the right end;

s17, when replacing and maintaining, only energy consumption components in the self-resetting support are replaced without replacing the self-resetting support integrally, the replacement method is that the self-resetting support is firstly detached from a building or a bridge structure, then the self-resetting support is detached according to the sequence opposite to the assembly sequence of the self-resetting support, and the first cut thick-wall steel pipe (7) and the second cut thick-wall steel pipe (9) are replaced and then are reassembled.

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