CN108951689A - A kind of the auxiliary reinforcing device and reinforcement of power transmission tower foundation bolt - Google Patents

Abstract

The invention discloses a kind of auxiliary reinforcing device of power transmission tower foundation bolt and reinforcements, including basis, the basis is connect by column foot bottom plate with tower bar, it further include reinforcing bottom plate, screw rod, backing plate, self-locking body, basic stiffening plate, the quantity for reinforcing bottom plate is four pieces, it is respectively arranged on the surrounding of column foot bottom plate, it is welded and fixed between adjacent stiffening plates bottom plate, it is connected between two pieces of adjacent reinforcement bottom plates by backing plate, the backing plate is set to the upper surface for reinforcing bottom plate, the basis, reinforce bottom plate, it is connected between backing plate by screw rod, screw rod is equipped with nut, the nut is pressed in the upper surface of backing plate, by being connected by self-locking body between two adjacent nuts, each side wall on the basis is equipped with basic stiffening plate, it is tightly attached to the side wall on basis in the side of basic stiffening plate, the upper end of basic stiffening plate and reinforcement bottom plate welding Fixed, the end face of adjacent basic stiffening plate is docked and is welded and fixed.

Description

Auxiliary reinforcement device and reinforcement method for foundation bolts of transmission tower

technical field

The invention relates to the technical field of transmission tower reinforcement, in particular to an auxiliary reinforcement device and a reinforcement method for foundation bolts of a transmission tower.

Background technique

The transmission tower is the supporting point of the overhead line and an important equipment of the transmission line. Anchor bolts of transmission towers are the components connecting the foundation and the tower, which are composed of screws, nuts, backing plates and auxiliary anchoring measures, and are important components of transmission towers. However, in the actual operation process, due to the unqualified quality of the cement protective cap and the leakage current of the insulator leading to the ground through the tower, etc., the anchor bolts will be corroded and the diameter of the bolts will be reduced, which will bring great safety to safe operation. Hidden danger.

Since the screw of the anchor bolt is buried in the cement foundation, once corrosion and thinning occur, it will directly affect the safety of the transmission tower. The repair of the existing technology needs to destroy the original foundation, and then re-cast it. This solution directly affects the safety of the transmission tower, and may cause a tower collapse accident, which is dangerous to the staff.

Contents of the invention

The present invention aims at the above-mentioned deficiencies existing in the prior art, and provides an auxiliary reinforcement device for the foundation bolts of the transmission tower. By setting the reinforcement base plate around the base plate of the tower foot, the reinforcement between the tower rod and the foundation is realized, and the problem is solved. The original anchor bolts were loosened due to corrosion and the connection was not strong, which ensured the reliability and safety of the transmission tower. The whole repair process will not excavate and damage the original foundation, but only increase the reinforcement structure on the original foundation. During the restoration process, the tower collapse will not occur, the construction is safe and reliable, and the safety of the staff is ensured.

The invention also provides an auxiliary reinforcing method for the anchor bolts of the transmission tower. The method is used to reinforce the anchor bolts of the transmission tower. The construction process is safe and fast, the construction period is short, and the cost is saved. The strength and reliability of use are fixed, and the reinforcing parts used are simple and easy to process.

To achieve the above object, the invention provides the following technical solutions:

An auxiliary reinforcing device for foundation bolts of a power transmission tower, including a foundation, the foundation is connected to the tower rod through the tower foot bottom plate, and also includes a reinforcement bottom plate, a screw, a backing plate, a self-locking piece, and a foundation reinforcement plate, and the reinforcement bottom plate The quantity is four pieces, which are respectively arranged around the base plate of the tower foot. The base plates of adjacent reinforcement plates are welded and fixed. , the foundation, the reinforced bottom plate, and the backing plate are connected by a screw, the screw is provided with a nut, and the nut is pressed against the upper end surface of the backing plate, and two adjacent nuts are connected by a self-locking piece, the Each side wall of the foundation is equipped with a foundation reinforcement plate, one side of the foundation reinforcement plate is close to the side wall of the foundation, the upper end of the foundation reinforcement plate is welded and fixed to the reinforced bottom plate, and the end faces of the adjacent foundation reinforcement plates are welded and fixed .

Preferably, the reinforced bottom plate is a right-angled plate structure, and a screw hole is provided at a right angle position of the reinforced bottom plate, and the screw hole cooperates with the screw rod, and the cross-section of the butt joint of adjacent reinforced bottom plates is set as a “V”-shaped groove structure.

Preferably, the diameter of the screw hole is 8mm-30mm larger than the diameter of the screw.

Preferably, the backing plate includes a presser foot plate and a connecting plate, both ends of the connecting plate are vertically connected with the presser foot plate, and an assembly hole is provided at the connection between the connection plate and the presser foot plate, the assembly hole is an arc-shaped structure, and the assembly hole Cooperate with screw.

Preferably, the self-locking part includes a connecting head and a connecting rod, the middle part of the connecting head is provided with a nut hole, the nut hole is matched with a nut, and a connecting head is welded at both ends of the connecting rod.

Preferably, the thickness of the backing plate is 6mm-20mm, and the backing plate is made of Q345 or Q420 steel plate.

Preferably, the length of the foundation reinforcement plate is 300mm-500mm, and the width dimension of the foundation reinforcement plate is larger than the width dimension of the foundation.

An auxiliary reinforcement method for the anchor bolts of a power transmission tower. The four reinforced bottom plates are sequentially recorded as the first reinforced bottom plate, the second reinforced bottom plate, the third reinforced bottom plate, and the fourth reinforced bottom plate along the counterclockwise direction, and each reinforced bottom plate corresponds to The screws are respectively recorded as the first screw, the second screw, the third screw, and the fourth screw, and the number of backing plates is two, which are respectively recorded as the first backing plate and the second backing plate, including the following steps:

1): On the outside of the base plate of the tower foot, drill holes at the four corners of the foundation. The diameter of the punched holes is 3mm-8mm larger than the diameter of the screw rod, and the hole depth is 300mm-1000mm;

2): Install the reinforced bottom plate so that the screw hole is facing the hole on the foundation, and the adjacent reinforced bottom plates are welded and fixed;

3): Attach the foundation reinforcement plate to the side wall of the foundation, weld the upper end of the foundation reinforcement plate to the end of the reinforcement bottom plate, and weld and fix the adjacent foundation reinforcement plates;

4): Pour the reinforcement glue into the holes of the foundation. When the poured reinforcement glue reaches 1/2 of the hole depth, insert the screw and continue pouring the reinforcement glue to ensure that the reinforcement glue fills the holes on the foundation. Wait for 15- 60 minutes after the reinforcement glue is cured, the first backing plate is placed on the upper end of the first reinforced bottom plate and the fourth reinforced bottom plate, the second backing plate is placed on the upper end of the second reinforced bottom plate and the third reinforced bottom plate, and the assembly hole and the screw Cooperate, assemble the nut on the screw rod, wait for 1-2 days after the planting glue is completely cured, tighten the nut, and press and fix the backing plate and the reinforced bottom plate through the nut;

5): Install self-locking parts between the first screw and the second screw, between the third screw and the fourth screw, first put the connecting head on the screw, make the nut hole match the nut, and then put the connecting rod on the Between the first screw rod and the second screw rod, and between the third screw rod and the fourth screw rod, the two ends of the connecting rod are uniformly welded and fixed.

Preferably, said step 2) the material of the reinforced bottom plate is Q345 or Q420; for Q345, select J507 welding rod with a diameter of 3.2mm and a current of 100A-140A; for Q420, select a J557 welding rod with a diameter of 3.2mm and a current of 100A-140A .

Compared with the prior art, the beneficial effects of the invention are:

1. The present invention realizes the reinforcement between the tower rod and the foundation by setting a reinforced bottom plate around the bottom plate of the tower foot, solves the problem of loosening and weak connection of the original anchor bolts due to corrosion, and ensures the fixedness of the transmission tower. Reliability and safety: the base reinforcement board is arranged around the foundation, and the base reinforcement board is used to wrap and clamp the foundation around the foundation. The connection between the foundation reinforcement board and the reinforcement base plate can increase the fixing strength of the reinforcement base plate and ensure the stability of the fixation At the same time, it can protect the foundation and reduce the corrosion and damage of the foundation. The whole restoration process will not excavate and damage the original foundation, but only increase the strengthening structure on the original foundation. During the restoration process, it will not cause the collapse of the tower, and the construction is safe. Reliable, ensuring the safety of the staff.

2. The backing plate structure of the present invention can increase the downward force area of the nut and ensure the uniformity of the force on the reinforced bottom plate. The backing plate can reinforce and protect two adjacent reinforced bottom plates, and the assembly hole is designed as an arc structure , which can facilitate assembly, and avoid the problem of inability to assemble due to errors.

3. The present invention realizes the self-locking between two adjacent nuts and nuts through the self-locking parts, prevents the nuts from loosening, ensures fastening firmness, and at the same time facilitates disassembly and assembly, and facilitates later maintenance.

4. Using this method to reinforce the anchor bolts of the transmission tower, the construction process is safe and fast, the construction period is short, and the cost is saved. At the same time, the fixed strength and reliability of the transmission tower can be guaranteed, and the reinforcing parts used are simple and easy to process. .

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the structure after removing the foundation reinforcement plate and the self-locking parts;

Figure 3 is a schematic diagram of the structure of the reinforced bottom plate;

Fig. 4 is the schematic diagram of backing plate structure;

Fig. 5 is a schematic diagram of the structure of the self-locking part.

Among the figure: 1-foundation; 2-reinforced base plate; 201-the first reinforced base plate; 202-the second reinforced base plate; 203-the third reinforced base plate; 204-the fourth reinforced base plate; 205-screw hole; 3-screw rod; 301 -first screw; 302-second screw; 303-third screw; 304-fourth screw; 4-nut; 5-backing plate; 501-first backing plate; 502-second backing plate; 503-assembly hole ; 504-presser foot plate; 505-connecting plate; 6-self-locking piece;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figure 1, an auxiliary reinforcement device for the anchor bolts of a transmission tower includes a foundation 1, the foundation 1 is connected to the tower rod through the tower foot bottom plate, and also includes a reinforcement bottom plate 2, a screw rod 3, a backing plate 5, a self-supporting Locking piece 6, foundation reinforcing plate 7, the quantity of described reinforcing base plate 2 is four, is respectively arranged around the four sides of tower foot base plate, welds and fixes between adjacent reinforcing plate base plates 2, between two adjacent reinforcing plate base plates 2 Connected by the backing plate 5, the backing plate 5 is arranged on the upper end surface of the reinforced base plate 2, the foundation 1, the reinforced base plate 2, and the backing plate 5 are connected by a screw 3, and the screw 3 is provided with a nut 4, and the nut 4 4 is pressed on the upper end surface of the backing plate 5, and the two adjacent nuts 4 are connected by a self-locking piece 6. Each side wall of the foundation 1 is provided with a foundation reinforcement plate 7, and one part of the foundation reinforcement plate 7 The side is close to the side wall of the foundation 1, the upper end of the foundation reinforcement plate 7 is welded and fixed with the reinforcement bottom plate 2, and the end faces of the adjacent foundation reinforcement plates 7 are connected and welded and fixed.

As shown in Figure 3, the reinforced bottom plate 2 is a right-angled plate structure, and the right angle position of the reinforced bottom plate 2 is provided with a screw hole 205. "V" shaped groove structure.

The diameter of the screw hole 205 is 8mm-30mm larger than the diameter of the screw 3 .

As shown in Figure 4, the backing plate 5 includes a presser foot plate 504 and a connecting plate 505, the two ends of the connecting plate 505 are vertically connected with the presser foot plate 504, and the connection between the connecting plate 505 and the presser foot plate 504 is provided with an assembly hole 503 , the assembly hole 503 is an arc structure, and the assembly hole 503 cooperates with the screw rod 3 .

As shown in Figure 5, the self-locking part 6 includes a connecting head 601 and a connecting rod 603. The middle part of the connecting head 501 is provided with a nut hole 602, and the nut hole 602 cooperates with the nut 4. The two ends of the connecting rod 603 One connector 601 is welded.

The backing plate 5 has a thickness of 6mm-20mm, and the backing plate 5 is made of Q345 or Q420 steel plate.

The length of the foundation reinforcement board 7 is 300mm-500mm, and the width dimension of the foundation reinforcement board 7 is larger than that of the foundation 1 .

As shown in Figure 2, the four reinforced base plates 2 are sequentially recorded as the first reinforced base plate 201, the second reinforced base plate 202, the third reinforced base plate 203, and the fourth reinforced base plate 204 along the counterclockwise direction, and the screw rods corresponding to each reinforced base plate 2 3 are respectively recorded as the first screw rod 301, the second screw rod 302, the third screw rod 303, and the fourth screw rod 304, and the number of backing plates 5 is two, which are respectively recorded as the first backing plate 501 and the second backing plate 502,

An auxiliary reinforcement method for foundation bolts of a transmission tower, comprising the following steps:

1): Drill holes at the four corners of the foundation 1 outside the base plate of the tower foot, the diameter of the punched holes is 3mm-8mm larger than the diameter of the screw rod 3, and the hole depth is 300mm-1000mm;

2): Install the reinforced bottom plate 2 so that the screw hole 205 is facing the hole on the foundation 1, and the adjacent reinforced bottom plates 2 are welded and fixed;

3): Attach the foundation reinforcement plate 7 to the side wall of the foundation 1, the upper end of the foundation reinforcement plate 7 is welded and fixed to the end of the reinforcement bottom plate 2, and the adjacent foundation reinforcement plates 7 are welded and fixed;

4): Pour the reinforcement glue into the hole of the foundation 1. When the poured reinforcement glue reaches 1/2 of the hole depth, insert the screw 3 and continue pouring the reinforcement glue to ensure that the reinforcement glue fills the holes on the foundation 1. After waiting for 15-60 minutes for the reinforcement glue to cure, place the first backing plate 501 on the upper ends of the first reinforced bottom plate 201 and the fourth reinforced bottom plate 204, and place the second backing plate 502 on the second reinforced bottom plate 202 and the third reinforced bottom plate The upper end of 203, and the assembly hole 5053 is matched with the screw rod 3, and the nut 4 is assembled on the screw rod 3. After 1-2 days, after the planting glue is completely cured, tighten the nut 4, and press the backing plate 5 and the reinforced bottom plate 2 through the nut 4. tightly fixed;

5): Install the self-locking parts 6 between the first screw 301 and the second screw 302, between the third screw 303 and the fourth screw 304, first put the connector 601 on the screw 3, make the nut hole 602 and The nuts 4 are matched, and then the connecting rod 603 is placed between the first screw rod 301 and the second screw rod 302, between the third screw rod 303 and the fourth screw rod 304, and the two ends of the connecting rod 603 are evenly welded and fixed by the joint head 601.

The step 2) the material of the reinforced bottom plate 2 is Q345 or Q420; for Q345, select J507 welding rod with a diameter of 3.2mm and a current of 100A-140A; for Q420, select a J557 welding rod with a diameter of 3.2mm and a current of 100A-140A.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (9)

1. a kind of auxiliary reinforcing device of power transmission tower foundation bolt, including basis, the basis is connected by column foot bottom plate and tower bar It connects, it is characterised in that: further include reinforcing bottom plate, screw rod, backing plate, self-locking body, basic stiffening plate, the quantity for reinforcing bottom plate is Four pieces, it is respectively arranged on the surrounding of column foot bottom plate, is welded and fixed between adjacent stiffening plates bottom plate, between two pieces of adjacent reinforcement bottom plates It is connected by backing plate, the backing plate is set to the upper surface for reinforcing bottom plate, and the basis is reinforced passing through screw rod between bottom plate, backing plate Connection, screw rod are equipped with nut, and the nut is pressed in the upper surface of backing plate, by passing through self-locking body between two adjacent nuts Connection, each side wall on the basis are equipped with basic stiffening plate, and the side wall on basis, basis are tightly attached in the side of basic stiffening plate The upper end of stiffening plate is welded and fixed with bottom plate is reinforced, and the end face of adjacent basic stiffening plate is docked and is welded and fixed.

2. a kind of auxiliary reinforcing device of power transmission tower foundation bolt as described in claim 1, it is characterised in that: the reinforcement bottom Plate is L-square structure, reinforces being equipped with screw hole at the square position of bottom plate, the screw hole and screw rod cooperate, adjacent reinforcement bottom Section at plate docking is set as " V " shape divided edge structure.

3. a kind of auxiliary reinforcing device of power transmission tower foundation bolt as claimed in claim 2, it is characterised in that: the screw hole Diameter it is 8mm-30mm bigger than the diameter of screw rod.

4. a kind of auxiliary reinforcing device of power transmission tower foundation bolt as claimed in claim 3, it is characterised in that: the backing plate packet Include pressure foot, connecting plate, the both ends of the connecting plate are vertically connected with pressure foot, and the junction of connecting plate and pressure foot is equipped with Pilot hole, pilot hole are arcuate structure, and pilot hole and screw rod cooperate.

5. a kind of auxiliary reinforcing device of power transmission tower foundation bolt as claimed in claim 4, it is characterised in that: the self-locking body Including connector, connecting rod, the middle part of the connector is equipped with nut bore, and the nut bore and nut cooperate, and the two of connecting rod Weld a connector in end.

6. a kind of auxiliary reinforcing device of power transmission tower foundation bolt as claimed in claim 5, it is characterised in that: the backing plate is thick Degree is 6mm-20mm, and backing plate is the steel plate material of Q345 or Q420.

7. a kind of auxiliary reinforcing device of power transmission tower foundation bolt as claimed in claim 6, it is characterised in that: the basis adds The length of strong plate is 300mm-500mm, and the width dimensions of basic stiffening plate are greater than the width dimensions on basis.

8. using a kind of reinforcement of the auxiliary reinforcing device of power transmission tower foundation bolt as claimed in claim 7, feature Be: four pieces of reinforcement bottom plates reinforce bottom plate, the 4th along the first reinforcement bottom plate, the second reinforcement bottom plate, third is successively denoted as counterclockwise Reinforce bottom plate, screw rod corresponding to each reinforcement bottom plate is denoted as the first screw rod, the second screw rod, third screw rod, the 4th screw rod respectively, The quantity of backing plate is two, is denoted as the first backing plate, the second backing plate respectively, comprising the following steps:

1): being punched at the outside of column foot bottom plate, four basic corner locations, the diameter of punching is bigger than the diameter of screw rod 3mm-8mm, hole depth 300mm-1000mm；

2): bottom plate is reinforced in installation, makes the hole on the basis of screw hole face, to be welded and fixed between adjacent reinforcement bottom plate；

3): basic stiffening plate is attached to the side wall on basis, the upper end of basic stiffening plate is welded and fixed with the end for reinforcing bottom plate, It is welded and fixed between adjacent basic stiffening plate；

4): pouring anchoring adhesive into the hole on basis, when the anchoring adhesive poured reaches hole depth 1/2, be inserted into screw rod, continue to pour plant Muscle glue guarantees the hole on the basis of anchoring adhesive is filled, and after waiting bar planting adhesive curing in 15-60 minutes, the first backing plate is placed in first To reinforce bottom plate and the 4th and reinforces the upper end of bottom plate, the second backing plate is placed in the second reinforcement bottom plate and third reinforces the upper end of bottom plate, And pilot hole and screw rod cooperate, and by nut assembly on screw rod, after waiting 1-2 days anchoring adhesives to be fully cured, tighten nut, pass through spiral shell Backing plate, reinforcement bottom plate are fixed by mother；

5): it will be respectively mounted self-locking body between the first screw rod and the second screw rod, between third screw rod and the 4th screw rod, it first will connection Head is sleeved on the screw rod, and is cooperated nut bore and nut, then connecting rod is placed between the first screw rod and the second screw rod, third spiral shell Between bar and the 4th screw rod, the uniform connector in the both ends of connecting rod is welded and fixed.

9. a kind of auxiliary reinforcement of power transmission tower foundation bolt as claimed in claim 8, it is characterised in that: the step 2) The material for reinforcing bottom plate is Q345 or Q420；For Q345, J507 welding rod, diameter 3.2mm, electric current 100A-140A are selected；It is right In Q420, J557 welding rod, diameter 3.2mm, electric current 100A-140A are selected.