CN111550040B - Adjustable bearing seat for variable cross-section creeping formwork construction and use method thereof - Google Patents
Adjustable bearing seat for variable cross-section creeping formwork construction and use method thereof Download PDFInfo
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- CN111550040B CN111550040B CN202010373431.8A CN202010373431A CN111550040B CN 111550040 B CN111550040 B CN 111550040B CN 202010373431 A CN202010373431 A CN 202010373431A CN 111550040 B CN111550040 B CN 111550040B
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- 238000009415 formwork Methods 0.000 title claims abstract description 62
- 238000010276 construction Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000009194 climbing Effects 0.000 claims abstract description 50
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 230000009975 flexible effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
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Abstract
An adjustable bearing seat for variable cross-section creeping formwork construction and a using method thereof are provided. The bearing box is fixed on the attachment structure, a slide rail is arranged in the bearing box, and the sliding hook seat is arranged in the slide rail and can slide under the driving of the telescopic screw rod group; one end of the telescopic screw rod group is connected with the sliding hook seat, the other end of the telescopic screw rod group is connected with the speed reducer through the rotating nut, and the main body bolt is driven to do telescopic motion through the rotation of the rotating nut, so that the horizontal telescopic movement of the adjustable bearing seat is realized. The adjustable bearing seat provided by the invention realizes the movement of the climbing formwork frame body when the cross section of the wall body is changed by utilizing the connection change of the bearing box, the bearing body and the telescopic screw group, avoids the frame body from climbing obliquely, does not need to be provided with supporting structures such as cushion blocks and the like, ensures the construction safety and simultaneously improves the construction efficiency. The adjustable bearing seat has the advantages of simple structure, convenient use, high safety and reliability and remarkable economic benefit.
Description
Technical Field
The invention relates to the technical field of creeping formwork construction, in particular to an adjustable bearing seat for variable-section creeping formwork construction and a using method thereof.
Background
The hydraulic climbing formwork is an advanced construction process, integrates the advantages of a large formwork and a sliding formwork, and has obvious technical advantages, such as simple and convenient construction operation, easy guarantee of the surface quality of concrete and the like; after the newly poured concrete is demolded, the template automatically climbs upwards for one layer by taking an oil cylinder or a jack as power and a guide rail or a supporting rod as a climbing track; climbing forms may be assembled and used starting from the base plate or any floor; the inner wall, the outer wall and the pillar can adopt creeping formwork without repeatedly assembling and disassembling formworks; the reinforcing steel bars can be bound in advance and can also be bound along with ascending, and the operation is convenient and safe; according to the engineering characteristics, the method can climb a layer of wall and pour a layer of floor slab, and can also realize continuous creeping formwork construction of the wall body, wherein the floor slab is constructed in a lagging way; the template can be provided with a stripper to ensure that the template is stripped smoothly without sticking the template; the method has the advantages of saving the template stacking field, having civilization construction field, having obvious superiority for narrow engineering projects of the construction field in the urban center, having more turnover times, low cost of template amortization and being suitable for leasing and subpackaging of template projects, and enabling the templates, the frame bodies and the hydraulic equipment to be continuously used in other projects after one project is finished.
However, as the height of the super high-rise building is higher and higher, the thickness of the core tube or the outer wall often needs to be subjected to one or more variable cross-section constructions, and the method in the prior art is as follows: if the section shrinkage is not more than 5cm, the horizontal direction movement is carried out in a form of obliquely climbing the formwork body; if the section shrinkage exceeds 5cm, pouring through a plurality of layers of wall bodies is needed, and each layer of the wall bodies is poured by obliquely climbing for 5cm by using cushion blocks until the creeping formwork is in place. The construction method has great potential safety hazard.
Therefore, a product design of a subversion type is urgently needed, and the problems that climbing formwork needs to be obliquely climbed when a wall body with a variable cross section is met in climbing formwork construction and potential safety hazards are high are solved.
Disclosure of Invention
The invention aims to provide an adjustable bearing seat for variable cross-section creeping formwork construction and a using method thereof, and aims to solve the problems of difficult construction, poor convenience and low safety when the creeping formwork construction meets the change of wall thickness in the prior art.
In order to solve the above-mentioned purpose, the invention adopts the following technical scheme:
the utility model provides a variable cross section creeping formwork construction is with adjustable seat that bears which characterized in that: comprises a bearing box, a sliding hook seat and a telescopic screw group; the bearing box is arranged on the attachment surface and comprises a base plate and a slide rail, the base plate is attached and fixed on the attachment surface, and a preformed hole for the sliding hook seat to pass through is formed in the middle of the base plate; the sliding rail is vertically fixed on the outer side of the base plate; a slide rail sealing plate is arranged at the outer side end of the slide rail; the sliding hook seat is arranged in the sliding rail and comprises a back plate, a sliding block, a side plate, a bearing pin and a bolt limiting plate; the back plate is arranged on the inner side, the plate surface is parallel to the base plate, and the middle of the bottom is provided with a screw reserved opening; the two sliding blocks are respectively embedded in the sliding rail grooves on the two sides, and the inner side ends of the two sliding blocks are respectively and vertically fixedly connected to the two sides of the back plate to form a U-shaped structure; the two side plates are arranged between the two sliding blocks, the plate surface is parallel to the sliding blocks, and the end part of the inner side is vertically and fixedly connected with the back plate; the bearing pin penetrates through the rear end parts of the two side plates and is fixedly connected with the sliding block; the bolt limiting plate is arranged between the two side plates and is arranged corresponding to the reserved opening of the screw, and the plate surface is parallel to the back plate; the main part bolt of flexible screw group includes atress end plate and screw rod, the atress end integrated circuit board is located between backplate and the bolt limiting plate, the screw rod is worn out and gets into the reservation bolt hole of wall body in reserving the opening from the screw rod, and it establishes to climb awl, pre-buried sleeve, pre-buried awl board, swivel nut limiting plate and swivel nut to overlap in proper order on it, wherein climbs the awl, pre-buried sleeve and pre-buried awl board three locates in the wall body, and the tip is adaptation connection in proper order, swivel nut locates the outside screw rod tip of wall body, and it is rotatory to drive the speed reducer, and then it is rotatory to drive the screw rod, realizes the flexible removal of slip couple seat level in the slide rail.
As the preferred technical scheme of the invention, the base plate is a rectangular plate, and four corner parts of the base plate are provided with four bearing bolts; the preformed hole is an H-shaped hole, and the slide rail is embedded in two side-length holes of the H-shaped hole and is welded and fixed; the height of the sliding block is adapted to the height of the sliding groove on the inner side of the sliding rail, and the height of the back plate is adapted to the width of the middle part of the H-shaped hole; the one end that slider and backplate are connected fluting, welding fixed in the backplate embedded groove guarantees the medial surface parallel and level of slider and backplate.
Preferably, the slide rail is composed of two C-shaped steels arranged oppositely, and a slide rail is formed on the inner side of the slide rail; the two slide rail seal plates are respectively arranged at the end parts of the two C-shaped steel, and the plate surface is parallel to the plate surface of the base plate; the size of the slide rail sealing plate on the same side is matched with the size of the end part of the C-shaped steel.
Preferably, the distance between the bolt limiting plate and the back plate is 25-35 mm; the slide block and the side plate are correspondingly provided with pin holes, and the bearing pin penetrates through the pin hole of the side plate, then penetrates into the slide block and is welded and fixed.
Preferably, the length of the screw is more than 335mm larger than the thickness of the wall, an external thread is arranged in the range of 350mm at one end sleeved with the rotating nut, and the rest parts corresponding to the climbing cone, the embedded sleeve and the embedded cone plate are smooth screws; the end parts of the climbing cone, the embedded sleeve and the embedded cone plate are in threaded connection; the combined length of the creeping cone, the embedded sleeve and the embedded cone plate is equal to the thickness of the wall body.
Preferably, the embedded conical plate is of an integral three-stage stepped frustum structure and sequentially comprises an upper-stage circular ring, a middle conical table and a lower-stage cylinder, the upper-stage circular ring, the middle conical table and the lower-stage cylinder are coaxially arranged, a through hole is formed in the center of each of the upper-stage circular ring, the middle conical table and the lower-stage cylinder, and the middle conical table and the lower-stage cylinder are matched and fixed with the embedded sleeve; and a mounting hole is formed in the periphery of the upper-step circular ring and used for being connected with the rotating nut limiting plate.
Preferably, the climbing cone is an integral two-stage stepped frustum which is sequentially an upper stepped frustum and a lower stepped cylinder, the upper stepped frustum and the lower stepped cylinder are coaxially arranged, a through hole is formed in the center of each upper stepped frustum and the corresponding lower stepped cylinder, and the lower stepped cylinder is matched and fixed with the embedded sleeve; and a bolt head hole is formed in the middle of the outer side surface of the upper-step frustum and used for installing a screw rod matched nut during pouring or turnover.
Preferably, the rotating nut comprises a nut body, a cross-shaped wedge and a limiting plate, wherein the cross-shaped wedge is arranged on the outer side of the nut body and is used for being matched and connected with the speed reducer; the limiting plate is arranged at the end part of one side, close to the rotating nut limiting plate, of the nut body, and a gap with the width of 10-20 mm is formed between the limiting plate and the cross wedge.
Preferably, the rotating nut limiting plate is of a two-step circular truncated cone structure, the diameter of the upper-step circular truncated cone is equal to that of an upper-step circular ring of the embedded conical plate, and a mounting hole is formed in one circle of the rotating nut limiting plate and used for being connected with the embedded conical plate; the center of the lower step round platform is provided with a cross-shaped wedge hole with the size matched with that of a cross-shaped wedge of the rotating nut, and the bottom of the lower step round platform is provided with a through hole with the size matched with that of a limiting plate of the rotating nut.
In addition, the invention also provides a use method of the adjustable bearing seat for the variable cross-section creeping formwork construction, which is characterized by comprising the following steps:
s1, carrying out creeping formwork normal construction to the wall variable cross section;
s2, demolding after the wall concrete reaches a certain strength;
s3, ranging and positioning are carried out on the surface of the wall body, and the mounting position of the adjustable bearing seat is determined;
s4, installing an adjustable bearing seat on the surface of the concrete structure, wherein the outer side surfaces of the creeping cone and the embedded cone plate are respectively flush with the outer side surface of the wall body, the screw rod is arranged through the wall, and the outer side of the adjustable bearing seat is coplanar with the outer side of the lower-layer common bearing body;
s5, binding the first layer of wall steel bars after the variable cross section is bound;
s6, lifting the climbing formwork guide rail and the climbing formwork, jacking the climbing formwork guide rail by using a hydraulic jacking system, fixing the climbing formwork guide rail when the climbing formwork guide rail reaches a preset position of a newly poured concrete structure, jacking the climbing formwork to a specified position, and stopping climbing;
s7, closing the die and pouring concrete;
s8, repeating the steps S2-S7, and then pouring a layer of concrete;
s9, demolding after the wall concrete reaches a certain strength;
s10, adjusting the adjustable bearing seat to stretch, driving the rotating nut to rotate by using the reducer, further driving the screw rod to rotate, realizing the horizontal stretching of the sliding hook seat in the sliding rail, and enabling the bearing box of the adjustable bearing seat to be attached to the wall surface;
s11, pouring concrete to finish variable section construction;
and S12, after the construction of the variable section is finished, the common bearing body is reused for construction until the construction is finished.
Compared with the prior art, the invention has the following beneficial effects:
1. the adjustable bearing seat can be freely changed in a telescopic mode, and the problem that the creeping formwork construction is difficult to construct when the wall thickness changes is effectively solved. By using the adjustable bearing seat, no matter whether the shrinkage size of the wall exceeds 5cm, the frame body does not need to be inclined or the cushion block does not need to be used, the traditional operation mode can be still adopted for construction and pouring concrete, only the adjustable bearing seat is used for replacing the common bearing body when the wall surface shrinks, the adjustable bearing seat is rotated after two layers of shrunk walls are poured, the creeping formwork can be horizontally moved to the position which is jointed with the wall body, the creeping formwork construction when the cross section of the wall body is changed is greatly facilitated, and therefore potential safety hazards are eliminated.
2. The adjustable bearing seat has the advantages of simple structure, convenient use, high safety and reliability and remarkable economic benefit;
3. the adjustable bearing seat bears the self weight and construction load of the creeping formwork by the bearing box, the telescopic screw group bears the telescopic function, the labor division is clear, the stress is clear, only the telescopic screw group is required to be adjusted, and the operation is convenient;
4. the telescopic supporting body screw rod and the embedded cone plate are both in sliding friction, the screw rod is driven to move horizontally by the rotary nut, the system is stressed clearly, the simulation analysis is more accurate, and when the screw thread is in contact with the embedded cone plate, the telescopic supporting body screw rod and the friction force between the climbing cone and the embedded cone plate are large, and if the friction force causes the climbing cone or the embedded cone plate to rotate relative to the concrete, the telescopic function of the supporting body cannot be realized.
Drawings
FIG. 1 is a schematic front view of an adjustable carrier according to the present invention;
FIG. 2 is a schematic view of a back structure of an adjustable carrier according to the present invention;
FIG. 3 is a schematic perspective view of a carrying case according to the present invention;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a left side view of FIG. 3;
FIG. 6 is a top view of FIG. 3;
fig. 7 is a schematic perspective view of a slide hook base according to the present invention;
FIG. 8 is a front view of FIG. 7;
FIG. 9 is a left side view of FIG. 7;
FIG. 10 is a top view of FIG. 7;
fig. 11 is a schematic perspective view of a telescopic screw assembly according to the present invention;
fig. 12 is a perspective view of a body bolt according to the present invention.
Fig. 13 is a schematic perspective view of an embedded tapered plate according to the present invention;
FIG. 14 is a front view of FIG. 13;
FIG. 15 is a left side view of FIG. 13;
FIG. 16 is a perspective view of a cone according to the present invention;
FIG. 17 is a front view of FIG. 16;
FIG. 18 is a left side view of FIG. 16;
FIG. 19 is a rear view of FIG. 16;
FIG. 20 is a perspective view of a swivel nut according to the present invention;
FIG. 21 is a front view of FIG. 20;
FIG. 22 is a left side view of FIG. 20;
fig. 23 is a schematic perspective view of a plate for limiting the rotation nut according to the present invention;
FIG. 24 is a front view of FIG. 23;
fig. 25 is a left side view of fig. 23.
Reference numerals: 1-a carrying case; 1.1-a base plate; 1.2-sliding rail; 1.3-slide rail sealing plate; 2-sliding hook seat; 2.1-a back plate; 2.2-sliding block; 2.3-side plate; 2.4-bearing pin; 2.5-bolt limiting plate; 2.6-reserving a gap on the screw and 3-telescoping screw group; 3.1-stressed end plate; 3.2-screw; 3.3-climbing a cone; 3.4-pre-burying the sleeve; 3.5-embedding a conical plate; 3.6-rotating the nut limiting plate; 3.7-rotating the nut; 4-carrying bolt.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in figures 1 and 2, the invention provides an adjustable bearing seat for variable cross-section creeping formwork construction and a using method thereof, and the adjustable bearing seat comprises a bearing box 1, a sliding hook seat 2, a telescopic screw group 3 and four bearing bolts 4. The bearing box 1 is fixed on a wall body by four common hydraulic creeping formwork bearing bolt assemblies, and the inner space and the sliding rail 1.2 of the bearing box can enable the sliding hook seat 2 to slide back and forth and limit other displacements of the sliding hook seat; the sliding hook seat 2 is formed by expanding and deforming a hook connecting seat on the basis of a common hydraulic creeping formwork hook connecting seat, is arranged in the bearing box 1 and can slide; one end of the telescopic screw group 3 is connected with the hook connecting seat of the sliding hook seat 2, but the rotation is not limited, the rotating nut 3.7 at the other end of the telescopic screw group 3 is driven by the speed reducer, and the main body bolt is driven to do telescopic motion through the rotation of the rotating nut 3.7, so that the horizontal telescopic movement of the adjustable bearing seat is realized.
As shown in fig. 3-6, the carrying box 1 is composed of a base plate 1.1, a sliding rail 1.2 and a sliding rail sealing plate 1.3, and is fixed on a wall body by four common carrying bolts 4, and the inner space and the sliding rail 1.2 can allow the sliding hook seat 2 to slide back and forth and limit other displacements.
The section of the slide rail 1.2 is a right-angle C-shaped steel section formed by a steel plate with the thickness of 30mm, the peripheral dimension of the slide rail is a rectangle with the size of 611mm multiplied by 91mm, the dimension of a C-shaped opening is 511mm, and the length of the end part of the C-shaped opening is 50 mm. The two slide rails 1.2 are symmetrically welded in an H-shaped hole in the middle of the base plate 1.1 of the bearing box. The slide rail closing plate 1.3 is a 30mm thick steel plate of 611mm × 91mm, and is welded to the side of the slide rail 1.2 opposite to the base plate 1.1.
As shown in fig. 7-10, the sliding hook base 2 is expanded and deformed on the basis of a common hydraulic climbing formwork hook connecting base. The change of the back plate 2.1 is to keep the total thickness of the bearing body unchanged, cancel the fishtail hook groove, change two back plate steel plates above and below the original fishtail hook groove into a whole, thicken the thickness of the back plate 2.1 to 30mm, expand the total width to 420mm bilaterally symmetrically, open a 350mm x 50mm gap in the lower side of the back plate 2.1 for installing the telescopic screw group 3; a 30mm thick steel plate is welded between the inner side and the two side plates of the back plate 2.1 to serve as a bolt limiting plate 2.5, the overall dimension is only required to be filled with a space at a corresponding position according to the original bearing body condition, and the clear distance between the bolt limiting plate 2.5 and the back plate 2.1 is 30.5 mm; a stress end plate 3.1 of the main body bolt is arranged between the bolt limiting plate 2.5 and the back plate 2.1; the two sides of the back plate 2.1 are respectively welded with a slider 2.2 with 550mm multiplied by 220mm, one side of the long edge of the slider 2.2 is provided with a gap with 450mm multiplied by 30mm, the back plate 2.1 can be just inserted into the gap and firmly welded, the thickness of the slider 2.2 is 30mm, a round hole with corresponding size is arranged at the position corresponding to the bearing pin 2.4, and the bearing pin 2.4 can simultaneously penetrate through the hook connecting seat and the stressed slider 2.2.
As shown in fig. 11, the telescopic screw group 3 includes a main body bolt, an embedded taper plate 3.5, a climbing taper 3.3, an embedded sleeve 3.4, a swivel nut 3.7 and a swivel nut limiting plate 3.6, wherein the swivel nut 3.7 is provided with a cross-shaped wedge for being connected with a speed reducer in a matching manner.
As shown in figure 12, the main body screw rod 3.2 is a high-strength screw rod with the diameter of 42mm, the length of the screw rod is wall thickness plus 335mm, one end of the screw rod is internally sheathed with screw threads within the range of 350mm, the other ranges of the screw rod are smooth screw rods, and the smooth end is welded with a stress end plate 3.1. The stress end plate 3.1 is a steel plate with the thickness of 155mm multiplied by 155mm and 30mm, and a main body bolt is sleeved and firmly welded in a central round hole with the diameter of 42 mm.
As shown in fig. 13-15, the embedded conical plate 3.5 is an integral three-stage stepped frustum structure, and a through hole is formed in the center of the embedded conical plate 3.5 and used for being matched with the main body bolt to achieve the expansion of the telescopic supporting body screw rod; the total height of the integral three-stage stepped frustum structure is 140mm, a through hole with the diameter of 42mm is formed in the center of the whole embedded conical plate 3.5, threads are sleeved in the through hole and matched with the screw rod 3.2, and the telescopic supporting body screw rod can stretch out and draw back through rotation. The height of the first-stage embedded conical plate step from bottom to top is 28mm, the height range of the bottom part within 20mm is a cylinder with the diameter of 150mm, the height range of the upper part within 8mm is a frustum, and the diameter is reduced from 120mm to 90 mm; the second-stage embedded taper plate ladder is a frustum with the height of 37mm, and the diameter of the second-stage embedded taper plate ladder is reduced from 90mm to 76 mm; the third-stage embedded taper plate ladder is in a cylindrical form, 75mm in height, concentric with a lower frustum and 64mm in diameter, and is matched and fixed with the embedded sleeve 3.4. In the pre-buried tapered plate 3.5 bottom plane, apart from through-hole center 65mm distance, a week sets up 4 phi 10 mm's screw trepanning, degree of depth 15mm for install swivel nut limiting plate 3.6.
As shown in fig. 16-19, the climbing cone 3.3 is an integral two-stage stair-shaped frustum, the total height is 150mm, the frustum with the height of the first-stage climbing cone from bottom to top being 75mm, the diameter is reduced from 120mm to 100mm, the bottom of the frustum is centrally provided with an M72 bolt head hole, the climbing cone is concentric with the whole climbing cone, the climbing cone can be disassembled and assembled by using an inner hexagonal wrench, the size can ensure that a telescopic supporting body screw rod is matched with an M42 nut to be freely and rotatably embedded into the interior while the circulation is realized, the attachment of a hanging seat connecting plate and a concrete wall surface when the supporting body is telescopic is realized, and the embedded cone plate 3.5, the embedded sleeve 3.4 and the climbing cone 3.3 can be fixed on a wall template by using an M42 bolt during embedded pouring, so that the accurate positioning is realized, and the smooth subsequent operation is ensured. The second grade is climbed awl ladder and is the cylinder form, and height 75mm is concentric with lower part frustum, and diameter 64mm cooperates fixedly with pre-buried sleeve 3.4.
Pre-buried sleeve 3.4 is phi 76mm 6mm round steel tube, each 80mm within range endotheca M64 screw thread in both ends, pre-buried sleeve 3.4 length subtracts 140mm for the wall thickness, with climb awl and pre-buried tapered plate 3.5 and be connected, make pre-buried tapered plate 3.5, pre-buried sleeve 3.4, the combination length and the wall thickness of climbing the awl equal, just in time install on the inside and outside template of wall, protection main part bolt can not contact the concrete, whole precision when guaranteeing flexible screw group 3 pre-buried, the flexible action of screw rod and supporting body.
As shown in FIGS. 20-22, the swivel nut 3.7 is a unitary cast steel or machined part, which is essentially an M42 high-strength nut having a wall thickness of 14mm and a height of 75mm, 4 cross-cuts of 15mm cross-section are uniformly provided along the outer circumference of the nut at a 90-degree angle of intersection, one end face of which is flush with the nut and a height of 50 mm. When the gear set drives the rotary nut 3.7 to rotate through the crossed wedge, the horizontal movement of the telescopic screw rod is realized. The head is provided with a limiting plate with phi 100mm and thickness of 10mm, a 15mm wide gap is formed between the limiting plate and the cross wedge, the rotating nut 3.7 can be limited in the rotating nut limiting plate 3.6, and smooth rotation can be kept.
As shown in fig. 23-25, the rotating nut limiting plate 3.6 is made of integral cast steel or machined part, and is integrally a two-step circular table with an overall height of 22mm, a lower step circular table with a diameter of 150mm, which is equal to the diameter of the embedded conical plate, and a height of 10mm, an upper step circular table with a diameter of 110mm, and a height of 12mm, and has a central through hole of phi 74mm, 4 square through holes with a cross section of 18mm × 13.5mm are uniformly arranged along an outer circle of the through hole at an intersection angle of 90 degrees, to form a cross-cut hole with the circular through hole, a lower step circular table with a bottom circular hole of phi 100mm, a depth of 12mm, and a distance of 65mm from a central axis of the limiting plate, and a circle is provided with 4 threaded through holes of phi 10mm, and forms an angle of 45 degrees with the cross-cut square hole, so as to be mounted on the embedded conical plate through bolts. The swivel nut limiting plate 3.6 can limit the horizontal displacement of the swivel nut 3.7, but can guarantee the period rotary motion, and then the main body bolt can not be subjected to horizontal telescopic motion under the condition that the swivel nut 3.7 does not rotate.
Specifically, the climbing cone 3.3, the embedded sleeve 3.4 and the embedded cone plate 3.5 are connected together by threads, namely, one end of the embedded sleeve 3.4 is connected with the climbing cone 3.3 by threads, and the other end is connected with the embedded cone plate 3.5 by threads; the rotary nut limiting plate 3.6 is fixed on the embedded conical plate 3.5 through four small bolts to form a combination, and the combination is not in threaded connection with other components; the rotary nut 3.7 is in threaded connection with the screw rod, so that the transmission function is realized. The rotating nut limiting plate 3.6 limits the movement of the rotating nut 3.7 but does not limit the rotation; the screw is in threaded connection with a swivel nut 3.7.
When the adjustable bearing seat for variable cross-section creeping formwork construction is used, the steps are as follows:
s1, carrying out a concrete variable cross section of the wall body according to the normal construction procedure of the creeping formwork;
s2, demolding and installing the adjustable bearing seat, specifically: after the concrete reaches a certain strength, demoulding, then ranging and positioning, mounting the adjustable bearing seat on the surface of the concrete structure, wherein the outer side of the adjustable bearing seat is coplanar with the outer side of the lower-layer common bearing body;
s3, binding the first layer of wall steel bars after the variable cross section is bound;
s4, lifting the climbing formwork guide rail and the frame body: jacking the climbing formwork guide rail by using a hydraulic jacking system, fixing the climbing formwork guide rail when the climbing formwork guide rail reaches a preset position of a newly poured concrete structure, then jacking the climbing formwork, and stopping climbing when the climbing formwork reaches a specified position;
s5, closing the die and pouring concrete;
s6, repeating the steps S2-S5, and then pouring a layer of concrete wall with a contracted section;
s7, adjusting the horizontal extension of the adjustable bearing seat after demolding so that the bearing box 1 of the adjustable bearing seat is attached to the wall, namely, the climbing formwork is translated to be attached to the wall, concrete is poured, and construction is carried out by using a common bearing body.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a variable cross section creeping formwork construction is with adjustable seat that bears which characterized in that: comprises a bearing box (1), a sliding hook seat (2) and a telescopic screw group (3);
the bearing box (1) is arranged on the attachment surface and comprises a base plate (1.1) and a sliding rail (1.2), the base plate (1.1) is attached and fixed on the attachment surface, and a preformed hole for the sliding hook seat (2) to penetrate through is formed in the middle of the base plate; the sliding rail (1.2) is vertically fixed on the outer side of the base plate (1.1); a slide rail sealing plate (1.3) is arranged at the outer side end of the slide rail (1.2);
the sliding hook seat (2) is arranged in the sliding rail (1.2) and comprises a back plate (2.1), a sliding block (2.2), a side plate (2.3), a bearing pin (2.4) and a bolt limiting plate (2.5); the back plate (2.1) is arranged on the inner side, the plate surface is parallel to the base plate (1.1), and a screw reserved opening (2.6) is formed in the middle of the bottom; two sliding blocks (2.2) are respectively embedded in the sliding rail grooves on the two sides, and the inner side ends of the sliding blocks are respectively and vertically fixedly connected to the two sides of the back plate (2.1) to form a U-shaped structure; the two side plates (2.3) are arranged between the two sliding blocks (2.2), the plate surface is parallel to the sliding blocks (2.2), and the end part of the inner side is vertically and fixedly connected with the back plate (2.1); the bearing pin (2.4) penetrates through the rear end parts of the two side plates (2.3) and is fixedly connected with the sliding block (2.2); the bolt limiting plate (2.5) is arranged between the two side plates (2.3) and is arranged corresponding to the reserved opening (2.6) of the screw, and the plate surface is parallel to the back plate (2.1);
the main part bolt of flexible screw assembly (3) includes atress end plate (3.1) and screw rod (3.2), backplate (2.1) and bolt limiting plate (2.5) are located to atress end plate (3.1) card, wear out and get into the reservation bolt hole of wall body in screw rod reservation opening (2.6) screw rod (3.2), overlap in proper order on it and establish and climb awl (3.3), pre-buried sleeve (3.4), pre-buried tapered plate (3.5), swivel nut limiting plate (3.6) and swivel nut (3.7), wherein climb awl (3.3), pre-buried sleeve (3.4) and pre-buried tapered plate (3.5) three and locate in the wall body, and the tip is adaptation connection in proper order, swivel nut (3.7) are located wall body outside screw rod (3.2) tip, are driven by the speed reducer and are rotatory, and then drive screw rod (3.2) rotatory, realize the flexible removal of the level of slip couple seat (2) in slide rail (1.2).
2. The adjustable bearing seat for the variable cross-section creeping formwork construction according to claim 1 is characterized in that: the base plate (1.1) is a rectangular plate, and four corner parts of the rectangular plate are provided with four bearing bolts (4); the preformed hole is an H-shaped hole, and the sliding rail (1.2) is embedded in the two side-length holes of the H-shaped hole and is welded and fixed; the height of the sliding block (2.2) is adapted to the height of a sliding groove on the inner side of the sliding rail (1.2), and the height of the back plate (2.1) is adapted to the width of the middle part of the H-shaped hole; the one end that slider (2.2) and backplate (2.1) are connected fluting, welding fixed in backplate (2.1) embedded groove guarantees the medial surface parallel and level of slider (2.2) and backplate (2.1).
3. The adjustable bearing seat for the variable cross-section creeping formwork construction according to claim 1 is characterized in that: the sliding rail (1.2) is composed of two C-shaped steel which are arranged oppositely, and a sliding rail is formed on the inner side of the sliding rail; the two slide rail seal plates (1.3) are respectively arranged at the end parts of the two C-shaped steel, and the plate surfaces are parallel to the plate surface of the base plate (1.1); the size of the slide rail sealing plate (1.3) at the same side is matched with the size of the end part of the C-shaped steel.
4. The adjustable bearing seat for the variable cross-section creeping formwork construction according to claim 1 is characterized in that: the distance between the bolt limiting plate (2.5) and the back plate (2.1) is 25-35 mm; the sliding block (2.2) and the side plate (2.3) are correspondingly provided with pin holes, and the bearing pin (2.4) penetrates through the pin hole of the side plate (2.3) and then penetrates into the sliding block (2.2) and is welded and fixed.
5. The adjustable bearing seat for the variable cross-section creeping formwork construction according to claim 1 is characterized in that: the length of the screw (3.2) is more than 335mm larger than the thickness of the wall body, an external thread is arranged in the range of 350mm at one end sleeved with the rotating nut (3.7), and the rest parts corresponding to the climbing cone (3.3), the embedded sleeve (3.4) and the embedded cone plate (3.5) are smooth screws; the end parts of the creeping cone (3.3), the embedded sleeve (3.4) and the embedded cone plate (3.5) are in threaded connection; the combined length of the creeping cone (3.3), the embedded sleeve (3.4) and the embedded cone plate (3.5) is equal to the thickness of the wall body.
6. The adjustable bearing seat for the variable cross-section creeping formwork construction according to claim 1 is characterized in that: the embedded conical plate (3.5) is of an integral three-stage stepped frustum structure and sequentially comprises an upper-stage circular ring, a middle conical table and a lower-stage cylinder, the upper-stage circular ring, the middle conical table and the lower-stage cylinder are coaxially arranged, smooth through holes are formed in the centers of the upper-stage circular ring, the middle conical table and the lower-stage cylinder, and the middle conical table and the lower-stage cylinder are in threaded connection with the embedded sleeve (3.4); and a mounting hole is formed in the periphery of the upper-step circular ring and used for being connected with a rotating nut limiting plate (3.6).
7. The adjustable bearing seat for the variable cross-section creeping formwork construction according to claim 1 is characterized in that: the climbing cone (3.3) is an integral two-stage step-shaped frustum and is sequentially an upper step frustum and a lower step cylinder, the upper step frustum and the lower step cylinder are coaxially arranged, a smooth through hole is formed in the center of each climbing cone, and the lower step cylinder is in threaded connection with the embedded sleeve (3.4); and a bolt head hole is formed in the middle of the outer side surface of the upper-step frustum and used for installing a screw rod matched nut during pouring or turnover.
8. The adjustable bearing seat for the variable cross-section creeping formwork construction according to claim 1 is characterized in that: the rotary nut (3.7) comprises a nut body, a cross-shaped wedge and a limiting plate, wherein the cross-shaped wedge is arranged on the outer side of the nut body and is used for being matched and connected with the speed reducer; the limiting plate is arranged at the end part of one side of the nut body, which is close to the rotating nut limiting plate (3.6), and a gap with the width of 10-20 mm is formed between the limiting plate and the cross-shaped wedge.
9. The adjustable bearing seat for the variable cross-section creeping formwork construction according to claim 1 is characterized in that: the rotary nut limiting plate (3.6) is of a two-step circular truncated cone structure, the diameter of the upper-step circular truncated cone is equal to that of an upper-step circular ring of the embedded conical plate (3.5), and a mounting hole is formed in the periphery of the rotary nut limiting plate and used for being connected with the embedded conical plate (3.5); the center of the lower-step round platform is provided with a cross-shaped wedge hole with the size matched with that of the cross-shaped wedge of the rotating nut (3.7), and the bottom of the lower-step round platform is provided with a through hole with the size matched with that of the limiting plate of the rotating nut (3.7).
10. The use method of the adjustable bearing seat for the variable cross-section creeping formwork construction of any one of claims 1-9 is characterized by comprising the following steps:
s1, carrying out creeping formwork normal construction to the wall variable cross section;
s2, demolding after the wall concrete reaches a certain strength;
s3, ranging and positioning are carried out on the surface of the wall body, and the mounting position of the adjustable bearing seat is determined;
s4, installing an adjustable bearing seat on the surface of the concrete structure, wherein the outer side surfaces of a creeping cone (3.3) and a pre-embedded cone plate (3.5) are respectively flush with the outer side surface of a wall body, a screw rod (3.2) is arranged through the wall, and the outer side of the adjustable bearing seat is coplanar with the outer side of a lower-layer common bearing body;
s5, binding the first layer of wall steel bars after the variable cross section is bound;
s6, lifting the climbing formwork guide rail and the climbing formwork, jacking the climbing formwork guide rail by using a hydraulic jacking system, fixing the climbing formwork guide rail when the climbing formwork guide rail reaches a preset position of a newly poured concrete structure, jacking the climbing formwork to a specified position, and stopping climbing;
s7, closing the die and pouring concrete;
s8, repeating the steps S2-S7, and then pouring a layer of concrete;
s9, demolding after the wall concrete reaches a certain strength;
s10, adjusting the adjustable bearing seat to stretch, driving a rotating nut (3.7) to rotate by using a speed reducer, further driving a screw rod (3.2) to rotate, realizing the horizontal stretching of the sliding hook seat (2) in the sliding rail (1.2), and enabling the bearing box of the adjustable bearing seat to be attached to the wall surface;
s11, pouring concrete to finish variable section construction;
and S12, after the construction of the variable section is finished, the common bearing body is reused for construction until the construction is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010373431.8A CN111550040B (en) | 2020-05-06 | 2020-05-06 | Adjustable bearing seat for variable cross-section creeping formwork construction and use method thereof |
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| CN202010373431.8A CN111550040B (en) | 2020-05-06 | 2020-05-06 | Adjustable bearing seat for variable cross-section creeping formwork construction and use method thereof |
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| CN111550040B true CN111550040B (en) | 2022-01-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112983045B (en) * | 2021-05-10 | 2021-07-30 | 上海建工四建集团有限公司 | Automatic device that cracks of attached brick wall |
| CN115095135B (en) * | 2022-07-27 | 2023-11-24 | 保利长大工程有限公司 | Climbing cone adapting to changeable curved surface |
| CN115434524B (en) * | 2022-09-28 | 2024-03-29 | 上海建工一建集团有限公司 | Sliding rail device for inclined wall construction and construction method thereof |
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| DE3428670C1 (en) * | 1984-08-03 | 1986-04-30 | Wayss & Freytag Ag, 6000 Frankfurt | Method and device for surface-flush positioning of installation elements in sliding forms |
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| CN110700601A (en) * | 2019-10-15 | 2020-01-17 | 北京城建北方集团有限公司 | Telescopic unloading platform |
| CN210460021U (en) * | 2019-07-23 | 2020-05-05 | 张晓兰 | Construction overhanging type discharging platform |
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|---|---|---|---|---|
| DE3428670C1 (en) * | 1984-08-03 | 1986-04-30 | Wayss & Freytag Ag, 6000 Frankfurt | Method and device for surface-flush positioning of installation elements in sliding forms |
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| CN204112713U (en) * | 2014-09-24 | 2015-01-21 | 中建一局集团建设发展有限公司 | Enhancement mode creeping formwork embedded part |
| CN106121216A (en) * | 2016-06-28 | 2016-11-16 | 上海建工集团股份有限公司 | The lower support means regulated for the hand wheel type on-line continuous of hydraulic climbing die block system |
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| CN209924464U (en) * | 2019-05-16 | 2020-01-10 | 湖北高企达建设有限公司 | Assembly type construction is with platform of unloading |
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| CN110700601A (en) * | 2019-10-15 | 2020-01-17 | 北京城建北方集团有限公司 | Telescopic unloading platform |
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| CN111550040A (en) | 2020-08-18 |
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