Support structure for cap beam construction and cap beam construction method

Abstract

The present invention discloses a support structure for cap beam construction, including a crossbeam, a support beam, a pair of corbels, and a circumferential positioning hoop. The present invention also discloses a cap beam construction method, including the following steps: S1: fix the crossbeam to the top end face of the pier column, hang a pair of corbels at both ends of the crossbeam, connect the circumferential positioning hoop with the pair of corbels, use the circumferential positioning hoop to fix the pair of corbels along the circumference of the pier column, and finally set the support beam on the corbel; S2: build the support upwards with the support beam as the starting point, and complete the cap beam casting construction; when the cap beam is cast, cast the crossbeam in the cap beam; S3: after the cap beam casting construction is completed, cut off the hanging parts exposed to the cap beam, and remove the support, support beam, circumferential positioning hoop and corbel. The present invention can eliminate the safety hazard of the support sliding down, and is easy to disassemble the support, which is conducive to shortening the construction period.

Description

Technical Field

[0001] The present invention relates to the technical field of cap beam construction, and in particular to a bracket support structure for cap beam construction and a cap beam construction method. Background Art

[0002] There are generally three traditional cantilever cap beam construction methods. The first is to build a support from the ground upwards. However, in urban bridge construction, this method will occupy traffic channels for construction, or even close roads for construction, affecting urban traffic. Second, holes are reserved on the piers to install corbels, and the support is built upwards from the corbels. Although this method does not occupy the road for construction, it will leave holes on the piers, affecting the integrity of the pier appearance. Third, the piers are tightened with hoops, and the support is built upwards from the hoops. Although this method does not occupy the road for construction and does not leave holes on the piers, the hoops balance the weight of the support formwork with the friction between the piers. When the friction does not meet the requirements, there are major safety hazards.

[0003] The existing patent is named "A construction support system for large cantilever cap beams with square double columns" and the publication number is CN206052554U, which is a Chinese utility model. The patent uses steel clamps to fix two monolithic bodies arranged in parallel on two square piers, and uses steel structures and distribution beams to connect the two monolithic bodies together to form a stable and reliable support system. The two opposite steel clamps are connected by tension bolts, which can adapt to square piers of different sizes, are not limited by the construction site, do not need to harden the construction site, can save foundation treatment costs, and have high economic benefits. Compared with other support systems, this patent does not require holes to be opened or embedded parts to be reserved.

[0004] However, the support system in the above patent still balances the weight of the support system and the low-mold bracket through friction, and there is still a risk of the support system sliding down. In addition, the disassembly of the support system is relatively cumbersome, which is not conducive to shortening the construction period. Summary of the invention

[0005] The purpose of the present invention includes providing a support structure for cap beam construction, which is designed for the support structure for cap beam construction, can eliminate the safety hazard of support sliding down, and is easy to disassemble the support, which is conducive to shortening the construction period.

[0006] Another object of the present invention includes providing a cap beam construction method, which is designed for the cap beam construction method. It does not need to reserve holes on the piers, and there is no safety hazard of insufficient friction between the clamps and the piers. It has high safety and does not require road occupation during construction. In addition, the later dismantling of the bracket support structure is convenient and quick, which is conducive to shortening the construction period.

[0007] The embodiments of the present invention are implemented by the following technical solutions:

[0008] The support structure of the cap beam construction includes a crossbeam, a support beam and a pair of corbels, and a circumferential positioning hoop. The crossbeam is fixed to the top end face of the pier column, and hanging parts are fixed to both ends of the crossbeam. The pair of corbels are symmetrically arranged on both sides of the pier column, and the corbels are fixed to the hanging parts. The corbels abut against the surface of the pier column, and the support beam is fixed to the corbels. The support beam is used to fix the support, and the circumferential positioning hoop is connected to the pair of corbels, and the circumferential positioning hoop surrounds the pier column. The circumferential positioning hoop is used to fix the pair of corbels along the circumference of the pier column.

[0009] In one embodiment of the present invention, during the casting construction of the cap beam, the cross beam is cast inside the cap beam.

[0010] In one embodiment of the present invention, the circumferential positioning hoop includes a pair of hoop frames, which are symmetrically arranged on both sides of the pair of corbels, and the two ends of the hoop frames are respectively connected to the pair of corbels. A plurality of rubber contacts are provided between the hoop frames and the pier column, one side of the rubber contact is fixed to the hoop frame, and the other side of the rubber contact abuts against the surface of the pier column.

[0011] In one embodiment of the present invention, a connection plate is pre-embedded in the top end surface of the pier column, and the cross beam is welded to the connection plate.

[0012] In one embodiment of the present invention, the connecting plate is welded to the steel reinforcement skeleton of the pier column.

[0013] The cap beam construction method comprises the following steps:

[0014] S1: fix the crossbeam to the top end face of the pier column, hang a pair of corbels on both ends of the crossbeam, connect the circumferential positioning clamp to the pair of corbels, use the circumferential positioning clamp to fix the pair of corbels along the circumference of the pier column, and finally erect the bracket support beam on the corbels;

[0015] S2: Build the bracket upwards from the bracket support beam as the starting point, and complete the cap beam pouring construction; when pouring the cap beam, pour the crossbeam inside the cap beam;

[0016] S3: After the cap beam casting construction is completed, cut off the hanging parts exposed on the cap beam, and remove the bracket, bracket support beam, circumferential positioning clamp and corbel.

[0017] In one embodiment of the present invention, the circumferential positioning hoop includes a pair of hoop frames, which are symmetrically arranged on both sides of the pair of corbels, and the two ends of the hoop frames are respectively connected to the pair of corbels. A plurality of rubber contacts are provided between the hoop frames and the pier column, one side of the rubber contact is fixed to the hoop frame, and the other side of the rubber contact abuts against the surface of the pier column.

[0018] In one embodiment of the present invention, a connection plate is pre-embedded in the top end surface of the pier column, and the cross beam is welded to the connection plate.

[0019] In one embodiment of the present invention, the connecting plate is welded to the steel reinforcement skeleton of the pier column.

[0020] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0021] The embodiment of the present invention is provided with a support support structure including a crossbeam, a support support beam, a circumferential positioning hoop and a pair of corbels. The crossbeam is fixed to the top end face of the pier column, and the crossbeam is used as the load-bearing beam of the support support structure. A pair of corbels are hung at both ends of the crossbeam, and the corbels are abutted against the surface of the pier column. The support support beam is mounted on the corbels, and the support support beam is used as the starting point for building the support. The weight of the support is transferred to the crossbeam through the corbels and the hanging parts, and then transferred to the pier column through the crossbeam. A circumferential positioning hoop is also provided between the two corbels, and the pair of corbels are fixed along the circumference of the pier column by the circumferential positioning hoop to prevent the corbels from moving along the circumferential direction of the pier column, thereby ensuring the stability of the support. During the construction of the cap beam, the cross beam is cast in the cap beam. After the cap beam casting construction is completed and the bracket is removed, the hanging parts are cut off, the circumferential positioning clamps are removed, and the corbels are taken down to complete the rapid disassembly of the entire bracket support structure. Compared with the prior art, this technical solution utilizes the top end face of the pier as the load-bearing surface and the cross beam as the load-bearing beam, eliminating the safety hazard of the bracket sliding down in the clamp support structure, and after the cap beam casting construction, the bracket and the bracket support structure are easy to disassemble, which is conducive to shortening the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 A top view of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the cross beam, the connecting plate and the pier column in the present invention;

[0026] Figure 4 It is a schematic structural diagram of the cutting part of the hanging member when the support structure of the bracket is removed according to the present invention.

[0027] Icons: 1-crossbeam, 2-bracket support beam, 3-corbel, 4-circumferential positioning clamp, 41-hoop frame, 42-rubber contact, 5-connecting plate, 6-cap beam, 7-pier column, 71-steel skeleton, 8-hanging parts. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present invention, it should be noted that if the terms "inside" or "outside" appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "configure", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Please refer to Figures 1 to 4The support support structure for cap beam construction includes a crossbeam 1, a support beam 2, a pair of corbels 3, and a circumferential positioning hoop 4. The crossbeam 1 is fixed to the top end face of the pier 7. Hanging pieces 8 are fixed to both ends of the crossbeam 1. The pair of corbels 3 are symmetrically arranged on both sides of the pier 7. The corbels 3 are fixed to the hanging pieces 8. The corbels 3 abut against the surface of the pier 7. The support beam 2 is fixed to the corbel 3. The support beam 2 is used to fix the support. The circumferential positioning hoop 4 is connected to the pair of corbels 3. The circumferential positioning hoop 4 surrounds the pier 7 and is used to fix the pair of corbels 3 circumferentially along the pier 7.

[0034] In order to eliminate the safety hazard of the support sliding down, facilitate the disassembly of the support, and shorten the construction period, the technical solution is provided by setting a support support structure including a crossbeam 1, a support support beam 2, a circumferential positioning clamp 4 and a pair of corbels 3. The crossbeam 1 can be composed of two or more side-by-side steel sections, and the crossbeam 1 can also be composed of two or more side-by-side square steels. A connecting plate 5 is embedded in the top end face of the pier 7, and the connecting plate 5 is welded to the steel skeleton 71 of the pier 7. The crossbeam 1 is welded to the connecting plate 5 to achieve the fixation of the crossbeam 1 and the top end face of the pier 7, and a pair of corbels 3 are hung at both ends of the crossbeam 1 by hanging parts 8. The hanging frame can be high-strength bolts or precision-rolled threaded steel, etc. The hanging part 8 can be bolted to the crossbeam 1 or welded. The corbels 3 are in contact with the surface of the pier 7, and a support beam 2 is set on the corbels 3. The support beam 2 is used as the starting point for building the support. The weight of the support is transferred to the cross beam 1 through the corbels 3 and the hanging parts 8, and then transferred to the pier 7 through the cross beam 1. The cross beam 1 is used as the load-bearing beam of the support support structure. A circumferential positioning hoop 4 is also arranged between the two corbels 3. The circumferential positioning hoop 4 includes a pair of hoop frames 41. The pair of hoop frames 41 are symmetrically arranged on both sides of the pair of corbels 3. The two ends of the hoop frames 41 are respectively connected to the pair of corbels 3. A plurality of rubber contacts 42 are arranged between the hoop frames 41 and the pier 7. One side of the rubber contact 42 is fixed to the hoop frame 41, and the other side of the rubber contact 42 is in contact with the surface of the pier 7. The two ends of the hoop 41 are connected to the two corbels 3 by bolts respectively. After installation, the hoop 41 presses the rubber contact 42 against the surface of the pier 7. The large friction between the rubber contact 42 and the surface of the pier 7 prevents the two corbels 3 from moving around the pier 7, thereby achieving the positioning and fixing of the corbels 3 around the pier 7, preventing the corbels 3 from moving around the pier 7, and ensuring the stability of the bracket. When the cap beam 6 is cast, the cross beam 1 is cast in the cap beam 6. After the cap beam 6 is cast and the bracket is removed, the hanging piece 8 is cut off. Figure 4Point A in the figure is the cutting point of the hanging part 8. The circumferential positioning clamp 4 is removed, and the corbel 3 is taken down to complete the rapid disassembly of the entire bracket support structure. Compared with the prior art, the technical solution uses the top end face of the pier 7 as the bearing surface and the crossbeam 1 as the load-bearing beam, eliminating the safety hazard of the bracket sliding down in the clamp support structure. Moreover, after the cap beam 6 is cast and constructed, the bracket and the bracket support structure are easy to disassemble, which is conducive to shortening the construction period.

[0035] It should be noted that the friction force between the circumferential positioning hoop 4 and the surface of the pier column 7 in this embodiment mainly limits the displacement of the corbel 3 along the circumference of the pier column 7, thereby avoiding the circumferential displacement of the corbel 3 along the pier column 7, but does not balance the weight of the bracket support structure, the bracket and the objects carried by the bracket, which is different from the hoop structure in the prior art.

[0036] It should be noted that the bracket 3 in this embodiment is the prior art.

[0037] The cap beam construction method comprises the following steps:

[0038] S1: fix the crossbeam 1 to the top end face of the pier 7, that is, the top end face of the pier 7 is pre-embedded with a connecting plate 5, the connecting plate 5 is welded to the steel frame 71 of the pier 7, and the crossbeam 1 is welded to the connecting plate 5; then hang a pair of corbels 3 at both ends of the crossbeam 1, and then connect the circumferential positioning hoop 4 to the pair of corbels 3, use the circumferential positioning hoop 4 to fix the pair of corbels 3 circumferentially along the pier 7, and finally erect the bracket support beam 2 on the corbel 3; the circumferential positioning hoop 4 includes a pair of hoop frames 41, the pair of hoop frames 41 are symmetrically arranged on both sides of the pair of corbels 3, the two ends of the hoop frame 41 are respectively connected to the pair of corbels 3, and a plurality of rubber contacts 42 are arranged between the hoop frame 41 and the pier 7, one side of the rubber contact 42 is fixed to the hoop frame 41, and the other side of the rubber contact 42 abuts against the surface of the pier 7.

[0039] S2: Build the support upwards with the support beam 2 as the starting point, and complete the casting construction of the cap beam 6; when casting the cap beam 6, cast the cross beam 1 inside the cap beam 6.

[0040] S3: After the cap beam 6 is cast, the hanging parts 8 exposed on the cap beam 6 are cut off, and the brackets, bracket support beams 2, circumferential positioning clamps 4 and corbels 3 are removed.

[0041] By utilizing the construction method of the cap beam 6 of the support support structure including the cross beam 1, the support beam 2, the circumferential positioning clamp 4 and a pair of corbels 3, there is no need to reserve holes on the pier 7, and there is no safety hazard of insufficient friction between the clamp and the pier 7. It has high safety, does not need to occupy the road for construction, and the later dismantling of the support structure is convenient and quick, which is conducive to shortening the construction period.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The support structure for cap beam construction is characterized by: It includes a crossbeam, a bracket support beam, a pair of brackets, and a circumferential positioning hoop. The cross beam is fixed to the top end face of the pier column, and hanging parts are fixed to both ends of the cross beam respectively. A connecting plate is pre-buried on the top end face of the pier column, and the cross beam is welded to the connecting plate. When the cap beam is cast, the cross beam is cast in the cap beam. The pair of brackets are symmetrically arranged on both sides of the pier column, the brackets are fixed to the hanging piece, and the brackets abut against the surface of the pier column. The support beam of the bracket is fixed to the bracket, and the support beam of the bracket is used to fix the bracket. The circumferential positioning hoop is connected to the pair of corbels, and the circumferential positioning hoop embraces the pier column. The circumferential positioning hoop is used to fix the pair of corbels along the circumference of the pier column.

2. The support structure for cap beam construction according to claim 1, characterized in that: The circumferential positioning hoop comprises a pair of hoop frames, which are symmetrically arranged on both sides of the pair of corbels, and the two ends of the hoop frames are respectively connected to the pair of corbels. A plurality of rubber contacts are arranged between the hoop frame and the pier column, one side of the rubber contact is fixed to the hoop frame, and the other side of the rubber contact abuts against the surface of the pier column.

3. The support structure for cap beam construction according to claim 1, characterized in that: The connecting plate is welded to the steel reinforcement frame of the pier column.

4. A cap beam construction method, using the support structure for cap beam construction according to any one of claims 1 to 3, characterized in that: The following steps are included: S1: fix the crossbeam to the top end face of the pier column, hang a pair of corbels on both ends of the crossbeam, connect the circumferential positioning clamp to the pair of corbels, use the circumferential positioning clamp to fix the pair of corbels along the circumference of the pier column, and finally erect the bracket support beam on the corbels; S2: Build the bracket upwards from the bracket support beam as the starting point, and complete the cap beam pouring construction; when pouring the cap beam, pour the crossbeam inside the cap beam; S3: After the cap beam casting construction is completed, cut off the hanging parts exposed on the cap beam, and remove the bracket, bracket support beam, circumferential positioning clamp and corbel.

5. The cap beam construction method according to claim 4, characterized in that: The circumferential positioning hoop comprises a pair of hoop frames, which are symmetrically arranged on both sides of the pair of corbels, and the two ends of the hoop frames are respectively connected to the pair of corbels. A plurality of rubber contacts are arranged between the hoop frame and the pier column, one side of the rubber contact is fixed to the hoop frame, and the other side of the rubber contact abuts against the surface of the pier column.

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