CN113265950A - Support for large cantilever bent cap construction and construction method thereof - Google Patents
Support for large cantilever bent cap construction and construction method thereof Download PDFInfo
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- CN113265950A CN113265950A CN202110552513.3A CN202110552513A CN113265950A CN 113265950 A CN113265950 A CN 113265950A CN 202110552513 A CN202110552513 A CN 202110552513A CN 113265950 A CN113265950 A CN 113265950A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 3
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
- E01D21/105—Balanced cantilevered erection
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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Abstract
The invention discloses a support for large cantilever bent cap construction and a construction method thereof. The bracket is installed in a hanging mode, so that the basic treatment cost and the lower bracket erection cost are saved. The four-tube lattice of this patent comprises the multisection, demolishs comparatively portably, and the detachable section of top steel pipe lattice is wholly demolishd and is hung from, and it is also more portably demolishd the bottom, can improve and demolish the efficiency of construction.
Description
Technical Field
The invention relates to the field of civil engineering, in particular to a support for large cantilever bent cap construction and a construction method thereof.
Background
The existing support for constructing the large cantilever bent cap generally adopts a construction mode of foundation, lower support and upper support, but the whole construction cost is high due to large foundation treatment capacity, high treatment cost and the like due to geology and other reasons. Meanwhile, when the bent cap is higher than the ground, the whole support is very high in erection height, poor in support stability and unsafe.
In addition, the existing support for constructing a part of large cantilever bent cap is inconvenient to disassemble and assemble, is limited by the space of a workbench when being disassembled, cannot be directly disassembled from top to bottom, has limited operation space for a truck crane, is inconvenient to disassemble a formwork and has lower disassembling construction efficiency. For example, the national intellectual property office discloses a patent document with publication number CN107165056A, which discloses an anti-overturning steel bar bracket for concrete pouring of a cantilever cover beam, comprising a bearing steel bar, an anti-overturning steel bar and a bracket, the unloading device comprises six parts, namely an unloading block, a support beam and a template system, steel bar holes for bearing steel bars and anti-overturning steel bars to pass through are prefabricated in two pier columns of the pier, at least 2 bearing steel bars are horizontally arranged along a longitudinal bridge, at least 1 anti-overturning steel bar is horizontally arranged along a transverse bridge, the bearing steel bars also pass through brackets to fix the brackets on the side surfaces of the two pier columns, main cross beams of the support beam are arranged above the brackets and supported by the unloading block arranged between the brackets and the main cross beams, tie beams of the support beam are arranged between the two main cross beams outside the two pier columns in pairs, the tie beams are attached to two sides of the two pier columns and are fixed on the main cross beams through bolts, and the anti-overturning steel bars pass through the corresponding two tie beams and are fixed between the two tie beams. The support system bears the weight through the bearing steel bar, and the anti-overturning steel bar and the main beam form an integral stress system through the tie beam, so that the overturning problem under the unfavorable conditions of unbalance loading and the like generated by concrete pouring is solved, and the support system is particularly suitable for the concrete cast-in-place construction when the bent cap cantilever is large; meanwhile, on the basis of achieving the purposes, the whole structure is simple, the cost is low, and the installation and the disassembly are convenient and fast. The anti-overturning steel bar is only one. In the scheme, only one anti-overturning steel bar is arranged, and if the bent cap cantilever is too large, a plurality of anti-overturning steel bars can be arranged in the transverse bridge direction. And a rubber plate is also inserted between the tie beam and the two piers. In this scheme, can guarantee that the support does not cause the damage to two pier stud surfaces. And a distribution beam of the support beam and a template system are also arranged on the main cross beam.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide a support for large cantilever capping beam construction. To solve one or more of the technical problems in the prior art and to provide at least one useful choice or creation.
The invention also aims to provide a bracket construction method for large cantilever capping beam construction.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a support for big cantilever bent cap construction, includes left four-tube lattice stand, right four-tube lattice stand, bracket, diagonal member and bracket frame, the bracket is erect and is equipped with a plurality ofly, and a plurality of bracket frame distribution are installed on the front and back lateral wall of two piers, and two piers are located the cushion cap, and left four-tube lattice stand and right four-tube lattice stand support respectively to be fixed on the bracket frame of two piers, and the bracket passes from left four-tube lattice stand and right four-tube lattice stand to hoist on left four-tube lattice stand and right four-tube lattice stand through many diagonal members.
Furthermore, the left four-tube lattice type upright post and the right four-tube lattice type upright post are connected through a connecting beam.
Further, the bracket frame includes bracket crossbeam, bearing diagonal and pre-buried steel sheet, pre-buried steel sheet is pre-buried in the pier stud, the one end and the pre-buried steel sheet fixed connection of bracket crossbeam, and the other end supports to be fixed in the upper end of bearing diagonal, the lower extreme and the pre-buried steel sheet fixed connection of bearing diagonal.
Further, the bracket includes a plurality of horizontal girders, the vertical girder more than two, I-shaped steel roof beam and flitch, and a plurality of horizontal girders are along the length direction interval distribution of the vertical girder more than two mutual parallels, and horizontal girder installs respectively on the bottom surface of the vertical girder more than two, and the I-shaped steel roof beam distributes on the top surface of the vertical girder more than two, and the flitch is laid on the I-shaped steel roof beam.
Furthermore, vertical girder is by left side slope longeron section, middle horizontal longeron section and right side slope longeron section, and the right-hand member of left side slope longeron section and the left end of right side slope longeron section are connected with the both ends of middle horizontal longeron section respectively, and the left end of left side slope longeron section and the right-hand member of right side slope longeron section tilt up.
Furthermore, the diagonal draw bar piece adopts a telescopic structural form; the diagonal draw bar piece includes body of rod hypomere, body of rod upper segment, adjustment handle, adjusting screw, bulb, lower articulated hole seat and upper articulated hole seat connect the one end of body of rod hypomere and the one end of body of rod upper segment respectively, the other end of body of rod hypomere and the other end of body of rod upper segment are connected with adjusting screw and bulb respectively, adjusting handle's one end is equipped with the ball groove, adjusting handle's the other end is connected with the nut, be equipped with the cavity with the nut intercommunication in the adjustment handle, the bulb is arranged in the ball groove and can rotate relative to the ball groove, adjusting screw's one end is passed the nut and is stretched into adjusting handle's cavity, rotate adjusting handle and can adjust the whole length of diagonal draw bar piece.
Further, the left four-tube lattice type upright post and the right four-tube lattice type upright post have the same structure.
Furthermore, the left four-tube lattice type upright post and the right four-tube lattice type upright post are both mainly composed of D426 × 10mm steel tubes and D114 × 6mm steel tubes, wherein the D426 × 10mm steel tubes are used as main stress members of the left four-tube lattice type upright post and the right four-tube lattice type upright post, and the D114 × 6mm steel tubes are used as lacing bars of the left four-tube lattice type upright post and the right four-tube lattice type upright post.
Furthermore, the left four-tube lattice and the right four-tube lattice are divided into a plurality of sections, and the sections are fixedly connected through bolts.
A support construction method for large cantilever capping beam construction comprises the following steps:
the method comprises the following steps: constructing a left four-tube lattice type upright column and a right four-tube lattice type upright column by using D426 x 10mm steel tubes and D114 x 6mm steel tubes, wherein the left four-tube lattice type upright column and the right four-tube lattice type upright column are formed by multiple sections;
step two: pre-burying steel plates of a bracket frame on the front side and the rear side of two pier studs to be poured according to the plane size of the lattice, after the pier studs are poured, fixedly connecting one end of a bracket cross beam in the bracket frame with the pre-buried steel plates, supporting and fixing the other end of the bracket cross beam at the upper end of an inclined support, and fixedly connecting the lower end of the inclined support with the pre-buried steel plates;
step three: hoisting the left four-tube lattice type stand column and the right four-tube lattice type stand column onto a bracket cross beam of the bracket frame by using a truck crane;
step four: connecting the left four-tube lattice type upright column and the right four-tube lattice type upright column together by using a connecting beam;
step five: connecting two ends of half of the transverse main beams in the bracket with the left four-tube lattice type upright post through diagonal members, and connecting two ends of the other half of the transverse main beams in the bracket with the right four-tube lattice type upright post through diagonal members;
step six: hoisting the two longitudinal main beams to the transverse main beam and fixedly connecting the two longitudinal main beams with the transverse main beam, so that the transverse main beams are distributed at intervals along the length direction of the two longitudinal main beams which are parallel to each other;
step seven: and (3) paving the I-shaped steel beams on the top surfaces of the two longitudinal main beams, and paving the battens on the I-shaped steel beams to complete the construction of the support.
The invention has the beneficial effects that:
1. the bracket is installed in a hanging mode, so that the foundation treatment cost and the lower support erection cost are saved, and the foundation treatment difficulty or the whole support settlement caused by the foundation settlement due to geological reasons can be avoided.
2. When the bent cap is higher than the ground, the whole support is higher in erection height, the overall stability of the support is reduced, the support is difficult to erect, and the defects of high erection height and poor stability of the support are overcome through the design of the hanging device.
3. This patent support compares with current support, and cantilever end support can be directly from last down demolish the operation, does not receive work platform's restriction to the truck crane has bigger operating space, conveniently demolishs the mould.
4. The four-tube lattice of this patent comprises the multisection, demolishs comparatively portably, and the detachable section of top steel pipe lattice is wholly demolishd and is hung from, and it is also more portably demolishd the bottom, can improve and demolish the efficiency of construction.
5. Because the diagonal member adopts a telescopic structural form, the elevation of the bottom template can be adjusted through the diagonal member, the elevation of the structure can be accurately controlled, and especially, enough form removal space can be provided through telescopic rod adjustment in form removal construction so as to facilitate form removal.
Drawings
The invention is further described with the aid of the accompanying drawings, in which the embodiments do not constitute any limitation, and for a person skilled in the art, without inventive effort, further drawings may be obtained from the following figures:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of the point B shown in FIG. 1;
FIG. 4 is a schematic structural view of the longitudinal main beam of FIG. 3;
fig. 5 is a schematic structural view of the diagonal member shown in fig. 1.
In the figure: 1. a left four-tube lattice column; 2. a right four-tube lattice column; 3. a bracket; 4. a diagonal member; 5. A bracket rack; 6. pier studs; 7. connecting the cross beam; 8. a corbel beam; 9. obliquely supporting; 10. pre-burying a steel plate; 11. a transverse main beam; 12. a longitudinal main beam; 13. an I-beam; 14. wood block; 15. a left inclined stringer section; 16. a middle horizontal longitudinal beam section; 17. a right inclined stringer section; 18. a bearing platform; 19. a large cantilever bent cap; 20. an upper section of the rod body; 21. a lower section of the rod body; 22. an adjusting handle; 23. adjusting the screw rod; 24. a ball head; 25. an upper hinge hole seat; 26. a lower hinge hole seat; 27. a ball groove; 28. a nut; 29. a cavity.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it is to be noted that the embodiments and features of the embodiments of the present application can be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward", "reverse", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
As shown in fig. 1 and 2, the support for the large cantilever capping beam construction comprises a left four-tube lattice type upright post 1, a right four-tube lattice type upright post 2, a bracket 3, a diagonal draw bar 4 and a bracket frame 5, wherein the left four-tube lattice type upright post and the right four-tube lattice type upright post have the same structure. The left four-tube lattice type upright post and the right four-tube lattice type upright post are both mainly composed of D426 × 10mm steel tubes and D114 × 6mm steel tubes, wherein the D426 × 10mm steel tubes are used as main stress members of the left four-tube lattice type upright post and the right four-tube lattice type upright post, and the D114 × 6mm steel tubes are used as lacing bars of the left four-tube lattice type upright post and the right four-tube lattice type upright post. The bracket 5 is equipped with a plurality ofly, and a plurality of brackets 5 distribute and install on the front and back lateral wall of two pier stud 6, and two pier stud 6 support on cushion cap 18, and left side four tubes lattice stand 1 and right four tubes lattice stand 2 support respectively to be fixed on the bracket 5 of two pier stud 6, and bracket 3 is used for holding the big cantilever bent cap 19 of pouring construction, and bracket 3 passes in left side four tubes lattice stand 1 and the right four tubes lattice stand 2 to hoist on left side four tubes lattice stand 1 and right four tubes lattice stand 2 through many diagonal draw pieces 4. The left four-tube lattice type upright post 1 and the right four-tube lattice type upright post 2 are connected through a connecting beam 7.
In addition, the left four-tube lattice and the right four-tube lattice are divided into a plurality of sections, and the sections are fixedly connected through bolts.
As shown in fig. 3, the bracket 3 includes a plurality of transverse main beams 11, two or more longitudinal main beams 12, i-beams 13 and battens 14, the plurality of transverse main beams 11 are distributed at intervals along the length direction of the two or more longitudinal main beams 12 that are parallel to each other, the transverse main beams 11 are respectively installed on the bottom surfaces of the two or more longitudinal main beams 12, the i-beams 13 are distributed on the top surfaces of the two or more longitudinal main beams 12, and the battens 14 are laid on the i-beams 13.
As shown in fig. 4, the longitudinal main beam 11 is composed of a left inclined longitudinal beam section 15, a middle horizontal longitudinal beam section 16 and a right inclined longitudinal beam section 17, the right end of the left inclined longitudinal beam section 15 and the left end of the right inclined longitudinal beam section 17 are respectively connected with the two ends of the middle horizontal longitudinal beam section 16, and the left end of the left inclined longitudinal beam section 15 and the right end of the right inclined longitudinal beam section 17 are inclined upward.
As shown in fig. 5, the diagonal member 4 is in a telescopic structure to adjust the elevation of the bottom form, so that the elevation of the structure can be accurately controlled, and especially, a sufficient form removal space is provided through adjustment of the telescopic rod during form removal construction, thereby facilitating form removal. The diagonal draw bar piece 4 comprises a lower rod body segment 20, an upper rod body segment 21, an adjusting handle 22, an adjusting screw rod 23, a ball head 24, a lower hinged hole seat 25 and an upper hinged hole seat 26, the lower hinged hole seat 25 and the upper hinged hole seat 26 are respectively connected with one end of the lower rod body segment 20 and one end of the upper rod body segment 21, the other end of the lower rod body segment 20 and the other end of the upper rod body segment 21 are respectively connected with the adjusting screw rod 23 and the ball head 24, one end of the adjusting handle 22 is provided with a ball groove 27, the other end of the adjusting handle 22 is connected with a nut 28, a cavity 29 communicated with the nut 28 is arranged in the adjusting handle 22, the ball head 24 is positioned in the ball groove 27 and can rotate relative to the ball groove 27, one end of the adjusting screw rod 22 penetrates through the nut 28 to extend into the cavity 29 of the adjusting handle 22, and the adjusting handle 22 can adjust the overall length of the diagonal draw bar piece 4.
A support construction method for large cantilever capping beam construction comprises the following steps:
the method comprises the following steps: constructing a left four-tube lattice type upright column and a right four-tube lattice type upright column by using D426 x 10mm steel tubes and D114 x 6mm steel tubes, wherein the left four-tube lattice type upright column and the right four-tube lattice type upright column are composed of a plurality of sections, and the sections are connected through flanges; the four-tube lattice of this patent comprises the multisection, demolishs comparatively portably, and the detachable section of top steel pipe lattice is wholly demolishd and is hung from, and it is also more portably demolishd the bottom, can improve and demolish the efficiency of construction.
Step two: pre-burying steel plates of a bracket frame on the front side and the rear side of two pier studs to be poured according to the plane size of the lattice, after the pier studs are poured, fixedly connecting one end of a bracket cross beam in the bracket frame with the pre-buried steel plates, supporting and fixing the other end of the bracket cross beam at the upper end of an inclined support, and fixedly connecting the lower end of the inclined support with the pre-buried steel plates;
step three: hoisting the left four-tube lattice type stand column and the right four-tube lattice type stand column onto a bracket cross beam of the bracket frame by using a truck crane; the bracket is installed in a hanging mode, so that the foundation treatment cost and the lower support erection cost are saved, and the foundation treatment difficulty or the whole support settlement caused by the foundation settlement due to geological reasons can be avoided.
Step four: connecting the left four-tube lattice type upright column and the right four-tube lattice type upright column together by using a connecting beam; therefore, the left four-tube lattice type upright post and the right four-tube lattice type upright post form a whole, and the stability is improved.
Step five: connecting two ends of half of the transverse main beams in the bracket with the left four-tube lattice type upright post through diagonal members, and connecting two ends of the other half of the transverse main beams in the bracket with the right four-tube lattice type upright post through diagonal members; and the stress is more uniform by adopting a symmetrical installation mode. The diagonal member adopts a telescopic structural form, and can adjust the installation angles of the left inclined longitudinal beam section 15 and the right inclined longitudinal beam section 17 of the longitudinal main beam 11 on the bracket. The two ends of the diagonal member are hinged with the left and right four-tube lattice type upright posts and the transverse main beam;
step six: hoisting more than two longitudinal main beams to the transverse main beam and fixedly connecting the transverse main beams to ensure that the transverse main beams are distributed at intervals along the length direction of the more than two longitudinal main beams which are parallel to each other; more than two longitudinal main beams are supported by a plurality of transverse main beams.
Step seven: and (3) paving the I-shaped steel beams on the top surfaces of the two longitudinal main beams, and paving the battens on the I-shaped steel beams to complete the construction of the support.
Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a support that is used for big cantilever bent cap construction which characterized in that: including left four-tube lattice stand, right four-tube lattice stand, bracket, diagonal member and bracket frame, the bracket frame is equipped with a plurality ofly, and a plurality of bracket frame distributes and installs on the lateral wall around two piers, and two piers are located the cushion cap, and left four-tube lattice stand and right four-tube lattice stand support respectively and fix on the bracket frame of two piers, and the bracket passes from left four-tube lattice stand and right four-tube lattice stand to hoist on left four-tube lattice stand and right four-tube lattice stand through many diagonal members.
2. The support for large cantilever capping beam construction according to claim 1, wherein: the left four-tube lattice type upright post and the right four-tube lattice type upright post are connected through a connecting beam.
3. The support for large cantilever capping beam construction according to claim 2, wherein: the bracket frame comprises a bracket beam, an inclined support and a pre-buried steel plate, the pre-buried steel plate is pre-buried in the pier stud, one end of the bracket beam is fixedly connected with the pre-buried steel plate, the other end of the bracket beam is supported and fixed at the upper end of the inclined support, and the lower end of the inclined support is fixedly connected with the pre-buried steel plate.
4. The support for large cantilever capping beam construction according to claim 3, wherein: the bracket comprises a plurality of transverse girders, more than two longitudinal girders, I-shaped steel beams and battens, wherein the transverse girders are distributed along the length directions of the two longitudinal girders which are parallel to each other at intervals, the transverse girders are respectively installed on the bottom surfaces of the more than two longitudinal girders, the I-shaped steel beams are distributed on the top surfaces of the more than two longitudinal girders, and the battens are laid on the I-shaped steel beams.
5. The support for large cantilever capping beam construction according to claim 4, wherein: the longitudinal main beam is composed of a left inclined longitudinal beam section, a middle horizontal longitudinal beam section and a right inclined longitudinal beam section, the right end of the left inclined longitudinal beam section and the left end of the right inclined longitudinal beam section are respectively connected with the two ends of the middle horizontal longitudinal beam section, and the left end of the left inclined longitudinal beam section and the right end of the right inclined longitudinal beam section are inclined upwards.
6. The support for large cantilever capping beam construction according to claim 5, wherein: the diagonal draw bar piece adopts a telescopic structural form; the diagonal draw bar piece includes body of rod hypomere, body of rod upper segment, adjustment handle, adjusting screw, bulb, lower articulated hole seat and upper articulated hole seat connect the one end of body of rod hypomere and the one end of body of rod upper segment respectively, the other end of body of rod hypomere and the other end of body of rod upper segment are connected with adjusting screw and bulb respectively, adjusting handle's one end is equipped with the ball groove, adjusting handle's the other end is connected with the nut, be equipped with the cavity with the nut intercommunication in the adjustment handle, the bulb is arranged in the ball groove and can rotate relative to the ball groove, adjusting screw's one end is passed the nut and is stretched into adjusting handle's cavity, rotate adjusting handle and can adjust the whole length of diagonal draw bar piece.
7. The support for large cantilever capping beam construction according to claim 6, wherein: the left four-tube lattice type upright post and the right four-tube lattice type upright post have the same structure.
8. The support for large cantilever capping beam construction according to claim 7, wherein: the left four-tube lattice type upright post and the right four-tube lattice type upright post are both mainly composed of D426 × 10mm steel tubes and D114 × 6mm steel tubes, wherein the D426 × 10mm steel tubes are used as main stress members of the left four-tube lattice type upright post and the right four-tube lattice type upright post, and the D114 × 6mm steel tubes are used as lacing bars of the left four-tube lattice type upright post and the right four-tube lattice type upright post.
9. The support for large cantilever capping beam construction according to claim 8, wherein: the left four-tube lattice and the right four-tube lattice are divided into a plurality of sections, and the sections are fixedly connected through bolts.
10. The construction method of the bracket for the large cantilever capping beam construction according to claim 9, comprising the steps of:
the method comprises the following steps: constructing a left four-tube lattice type upright column and a right four-tube lattice type upright column by using D426 x 10mm steel tubes and D114 x 6mm steel tubes, wherein the left four-tube lattice type upright column and the right four-tube lattice type upright column are formed by multiple sections;
step two: pre-burying steel plates of a bracket frame on the front side and the rear side of two pier studs to be poured according to the plane size of the lattice, after the pier studs are poured, fixedly connecting one end of a bracket cross beam in the bracket frame with the pre-buried steel plates, supporting and fixing the other end of the bracket cross beam at the upper end of an inclined support, and fixedly connecting the lower end of the inclined support with the pre-buried steel plates;
step three: hoisting the left four-tube lattice type stand column and the right four-tube lattice type stand column onto a bracket cross beam of the bracket frame by using a truck crane;
step four: connecting the left four-tube lattice type upright column and the right four-tube lattice type upright column together by using a connecting beam;
step five: connecting two ends of half of the transverse main beams in the bracket with the left four-tube lattice type upright post through diagonal members, and connecting two ends of the other half of the transverse main beams in the bracket with the right four-tube lattice type upright post through diagonal members;
step six: hoisting the two longitudinal main beams to the transverse main beam and fixedly connecting the two longitudinal main beams with the transverse main beam, so that the transverse main beams are distributed at intervals along the length direction of the two longitudinal main beams which are parallel to each other;
step seven: and (3) paving the I-shaped steel beams on the top surfaces of the two longitudinal main beams, and paving the battens on the I-shaped steel beams to complete the construction of the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110552513.3A CN113265950A (en) | 2021-05-20 | 2021-05-20 | Support for large cantilever bent cap construction and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN114575259A (en) * | 2022-03-18 | 2022-06-03 | 中电建路桥集团有限公司 | Template adjusting device |
| CN115012309A (en) * | 2022-05-20 | 2022-09-06 | 中建八局第二建设有限公司 | Overhead supporting device for large cantilever bent cap and construction method |
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| CN115012309A (en) * | 2022-05-20 | 2022-09-06 | 中建八局第二建设有限公司 | Overhead supporting device for large cantilever bent cap and construction method |
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