Support frame body for concrete construction of H-shaped steel-concrete composite beam bridge deck slab

Abstract

The utility model discloses an I-shaped steel-concrete composite beam bridge deck slab concrete construction supporting frame body which comprises a plurality of supporting assemblies, each supporting assembly comprises a middle supporting mechanism and a pair of outer side supporting mechanisms, and the two sides, corresponding to each supporting assembly, of a bridge steel main beam web are each provided with an upper connecting steel plate and a bottom connecting steel plate. The upper connecting steel plate is arranged close to the top of a bridge steel girder web, the bottom connecting steel plate is arranged close to the bottom of the bridge steel girder web, and the middle supporting mechanism and the outer side supporting mechanism are detachably connected to the two bridge steel girders through the upper connecting steel plate and the bottom connecting steel plate. The wood formworks are erected on the middle supporting mechanism and the outer side supporting mechanisms on the two sides. The middle supporting mechanism comprises a pair of middle channel steel inclined struts and a middle channel steel transverse strut, and the two ends of the middle channel steel transverse strut are detachably connected with the upper connecting steel plate between the bridge steel girders through bolt assemblies. Detachable connection is achieved, assembling is convenient, transferring is convenient, and repeated use can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an I-shaped steel-concrete composite beam bridge deck concrete construction support frame. Background Art

[0002] Steel-concrete composite structure is a new type of structure developed on the basis of steel structure and reinforced concrete structure. It has both the tensile performance of steel structure and the compressive performance of concrete, and will become one of the important development directions of structural systems.

[0003] During construction, the wooden formwork used to cast the bridge deck needs to be fixed to the bridge steel main beam and cast together with the top of the bridge steel main beam, so a fixed support structure needs to be installed between the wooden formwork and the bridge steel main beam. The current support structure is generally difficult to install, there are safety hazards for workers working at height for a long time, the support effect is poor, it is inconvenient to disassemble, and it cannot be reused.

[0004] For example, CN114232508 A discloses a support device for the construction of a cast-in-place bridge deck of a steel-concrete composite beam, which includes a formwork assembly, a hook and a support plate. The hook is hung on the web of a steel box beam and welded to the web of the steel box beam, and the support plate is connected to the top supporting structure in a one-to-one correspondence. There is only support for the middle part of the casting formwork, and no support on both sides. The support effect is poor and deformation is prone to occur on both sides. At the same time, the hook is welded to the web of the steel box beam, which makes it difficult to disassemble later. The hook is suspended in the middle, which makes installation difficult. Workers have to work at height for a long time, which poses a safety hazard. In order to meet the support effect, the hook needs to be set larger, which affects the appearance of the bridge. If it does not meet the regulations, it needs to be removed separately later. Utility Model Content

[0005] The utility model aims to solve the technical problems existing in the prior art, and particularly innovatively proposes an I-shaped steel-concrete composite beam bridge deck concrete construction support frame, which is detachably connected, easy to assemble, convenient to transfer, and reusable.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an I-shaped steel-concrete composite beam bridge deck concrete construction support frame, including a plurality of groups of support components arranged in sequence along the extension direction of the bridge, each group of support components includes a middle support mechanism located between two bridge steel main beams and a pair of outer support mechanisms located outside the two bridge steel main beams, the bridge steel main beam is an I-shaped steel, and both sides of the bridge steel main beam web corresponding to each group of support components are provided with an upper connecting steel plate and a bottom connecting steel plate, the upper connecting steel plate is arranged against the top of the bridge steel main beam web, and the bottom connecting steel plate is arranged against the bottom of the bridge steel main beam web, the middle supporting mechanism and the outer supporting mechanism are both detachably connected to the two bridge steel main beams through the upper connecting steel plate and the bottom connecting steel plate, and the wooden formwork for pouring the bridge deck concrete is set on the middle supporting mechanism and the outer supporting mechanisms on both sides;

[0007] The middle support mechanism comprises a pair of middle channel steel diagonal braces and a middle channel steel cross brace horizontally connected between two bridge steel main beams, and the two ends of the middle channel steel cross brace are detachably connected to the upper connecting steel plate between the bridge steel main beams through a bolt assembly;

[0008] A middle connecting steel plate is arranged in the middle of the middle channel steel cross brace, the top ends of the two middle channel steel diagonal braces are both mounted on the middle connecting steel plate through bolt assemblies, and the bottom ends are respectively mounted on the bottom connecting steel plates of the bridge steel main beams on both sides through bolt assemblies;

[0009] The outer supporting mechanisms include an outer channel steel cross brace and an outer channel steel diagonal brace. One end of the outer channel steel cross brace is installed on the corresponding upper connecting steel plate through a bolt assembly, and the other end is suspended. The bottom end of the outer channel steel diagonal brace is installed on the corresponding bottom connecting steel plate through a bolt assembly, and the top end is fixedly connected to the other end of the outer channel steel cross brace.

[0010] In the above scheme: an outer channel steel reinforcing diagonal brace is arranged between the middle part of the outer channel steel diagonal brace and the outer channel steel transverse brace, one end of the outer channel steel reinforcing diagonal brace is welded to the outer channel steel diagonal brace, and the other end is welded to the outer channel steel transverse brace to improve the supporting strength.

[0011] In the above solution: the outer supporting mechanism is also provided with an edge protection structure to improve safety.

[0012] In the above scheme: the edge protection structure includes edge protection columns arranged in sequence from front to back, the bottom ends of the edge protection columns are installed against the ends of the suspended ends of the outer channel steel cross braces, and edge protection nets are arranged between adjacent edge protection columns, which can be used as rigid supports through the edge protection columns. The edge protection nets are light in weight and easy to transfer. At the same time, they will not block wind force, and are convenient for concrete solidification.

[0013] In the above scheme: a plurality of wooden blocks are arranged between the top of the middle supporting mechanism, the top of the outer supporting mechanism and the bottom of the wooden template to ensure that the wooden template is level.

[0014] In the above scheme: a bridge support is arranged below the steel main beam of the bridge, and a bridge pad stone is arranged between the bridge support and the bridge cap beam.

[0015] In the above scheme: the side of the middle connecting steel plate is welded and fixed on the middle channel steel cross brace, and the plate body of the middle connecting steel plate is provided with mounting holes for connecting the middle channel steel diagonal brace, and the middle channel steel diagonal brace is detachably connected to the middle channel steel cross brace through the middle connecting steel plate.

[0016] In summary, the beneficial effects of the utility model are as follows: the middle support mechanism and the outer support mechanism can support the entire bottom of the bridge deck, the construction of the entire bridge deck is stable, and it can be detachably connected to the steel main beam of the bridge, that is, the steel main beam of the bridge is the main load-bearing carrier, which meets the support strength, and the workers can lean on the steel main beam of the bridge during operation, so there is a fulcrum for stabilizing the body, and the safety of the workers during construction is guaranteed as much as possible. They are all detachably connected by bolt assemblies, which are easy to assemble and disassemble, shorten the construction period as much as possible, can be reused, improve equipment utilization, and save costs. The multiple cross braces can stably support the bottom of the wooden formwork, and the multiple diagonal braces can further guarantee the stability and support strength of the corresponding cross braces. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the utility model.

[0018] Figure 2 It is a front view of the utility model. DETAILED DESCRIPTION

[0019] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0020] like Figures 1-2As shown, a support frame for the construction of concrete for an I-shaped steel-concrete composite beam bridge deck includes a plurality of support assemblies arranged in sequence along the extension direction of the bridge. Each support assembly includes a middle support mechanism located between two bridge steel main beams 5 and a pair of outer support mechanisms located outside the two bridge steel main beams 5. The wooden formwork 3 used for pouring bridge deck concrete 18 is set on the middle support mechanism and the outer support mechanisms on both sides. In order to ensure the level of the wooden formwork 3, a plurality of wooden squares 4 are arranged between the top of the middle support mechanism, the top of the outer support mechanism and the bottom of the wooden formwork 3. The bridge steel main beam 5 is an I-shaped steel, and the wooden formwork 3 is pressed against the wing plate of the bridge steel main beam 5 by the wooden squares 4. Specifically, the wooden squares 4 are arranged on the middle channel steel cross brace 11 and the outer channel steel cross braces 16 on both sides as the basis for placing the wooden formwork 3. A bridge support 6 is arranged below the bridge steel main beam 5, and a bridge pad stone 7 is arranged between the bridge support 6 and the bridge cap beam.

[0021] An upper connecting steel plate 17 and a bottom connecting steel plate 12 are provided on both sides of the web of the bridge steel main beam 5 corresponding to each group of supporting components. The upper connecting steel plate 17 is provided against the top of the web of the bridge steel main beam 5, and the bottom connecting steel plate 12 is provided against the bottom of the web of the bridge steel main beam 5. Both the upper connecting steel plate 17 and the bottom connecting steel plate 12 are rectangular plates. The sides of the upper connecting steel plate 17 and the bottom connecting steel plate 12 are welded and fixed to the bridge steel main beam 5, and the plate bodies of the upper connecting steel plate 17 and the bottom connecting steel plate 12 are provided with mounting holes for connecting the middle supporting mechanism and the outer supporting mechanism. The middle supporting mechanism and the outer supporting mechanism are both detachably connected to the two bridge steel main beams 5 through the upper connecting steel plate 17 and the bottom connecting steel plate 12.

[0022] The middle support mechanism includes a pair of middle channel steel diagonal braces 11 and a middle channel steel cross brace 9 horizontally connected between two bridge steel main beams 5. Both ends of the middle channel steel cross brace 9 are detachably connected to the upper connecting steel plate 17 between the bridge steel main beams 5 through bolt assemblies 13-1.

[0023] A middle connecting steel plate 10 is arranged in the middle of the middle channel steel cross brace 9. The middle connecting steel plate 10 is a rectangular plate. The side of the middle connecting steel plate 10 is welded and fixed to the middle channel steel cross brace 9. The plate body of the middle connecting steel plate 10 is provided with mounting holes for connecting the middle channel steel diagonal braces 11. The top ends of the two middle channel steel diagonal braces 11 are installed on the middle connecting steel plate 10 through bolt assemblies 13-2, and the bottom ends are respectively installed on the bottom connecting steel plates 12 of the bridge steel main beams 5 on both sides through bolt assemblies 13-3.

[0024] The outer supporting mechanism includes an outer channel steel cross brace 16 and an outer channel steel diagonal brace 15. One end of the outer channel steel cross brace 16 is installed on the corresponding upper connecting steel plate 17 through a bolt assembly 13-1, and the other end is suspended. The bottom end of the outer channel steel diagonal brace 15 is installed on the corresponding bottom connecting steel plate 12 through a bolt assembly 13-3, and the top end is welded and fixedly connected to the other end of the outer channel steel cross brace 16.

[0025] An outer channel steel reinforcing brace 14 is arranged between the middle part of the outer channel steel brace 15 and the outer channel steel cross brace 16. One end of the outer channel steel reinforcing brace 14 is welded and fixedly connected to the outer channel steel brace 15, and the other end is welded and fixedly connected to the outer channel steel cross brace 16 to improve the supporting strength.

[0026] The outer supporting mechanism is also provided with an edge protection structure to improve safety. The edge protection structure includes edge protection columns 2 arranged in sequence from front to back, the bottom ends of the edge protection columns 2 are all installed against the ends of the suspended ends of the outer channel steel cross braces 16, and edge protection nets 1 are arranged between adjacent edge protection columns 2, which can be used as hard supports through the edge protection columns 2. The edge protection nets 1 are light in weight and easy to transfer, and will not block wind force, which is convenient for concrete solidification.

Claims

1. An I-shaped steel-concrete composite beam bridge deck concrete construction support frame, characterized in that: It comprises a plurality of groups of support components sequentially arranged along the extension direction of the bridge, each group of support components comprises a middle support mechanism located between two bridge steel main beams (5) and a pair of outer support mechanisms located outside the two bridge steel main beams (5), the bridge steel main beams (5) are I-shaped steels, and an upper connecting steel plate (17) and a bottom connecting steel plate are arranged on both sides of the web of the bridge steel main beam (5) corresponding to each group of support components, the upper connecting steel plate (17) is arranged against the top of the web of the bridge steel main beam (5), and the bottom connecting steel plate is arranged against the bottom of the web of the bridge steel main beam (5), the middle support mechanism and the outer support mechanism are both detachably connected to the two bridge steel main beams (5) through the upper connecting steel plate (17) and the bottom connecting steel plate, and a wooden formwork (3) for pouring bridge deck concrete (18) is set on the middle support mechanism and the outer support mechanisms on both sides; The middle support mechanism is horizontally connected to a middle channel steel cross brace (9) between two bridge steel main beams (5) and a middle channel steel diagonal brace (11) for supporting the middle channel steel cross brace (9), and both ends of the middle channel steel cross brace (9) are detachably connected to the upper connecting steel plate (17) between the bridge steel main beams (5) through a bolt assembly; A middle connecting steel plate is provided in the middle of the middle channel steel cross brace (9), the top ends of the two middle channel steel diagonal braces (11) are both mounted on the middle connecting steel plate through bolt assemblies, and the bottom ends are respectively mounted on the bottom connecting steel plates of the bridge steel main beams (5) on both sides through bolt assemblies; The outer supporting mechanism comprises an outer channel steel cross brace (16) and an outer channel steel diagonal brace (15); one end of the outer channel steel cross brace (16) is mounted on the corresponding upper connecting steel plate (17) by a bolt assembly, and the other end is suspended; the bottom end of the outer channel steel diagonal brace (15) is mounted on the corresponding bottom connecting steel plate by a bolt assembly, and the top end is welded and fixedly connected to the other end of the outer channel steel cross brace (16).

2. The I-shaped steel-concrete composite beam bridge deck concrete construction support frame according to claim 1, characterized in that: An outer channel steel reinforcing diagonal brace (14) is arranged between the middle part of the outer channel steel diagonal brace (15) and the bridge steel main beam (5); one end of the outer channel steel reinforcing diagonal brace (14) is welded to the outer channel steel diagonal brace (15), and the other end is welded to the outer channel steel cross brace (16).

3. The I-shaped steel-concrete composite beam bridge deck concrete construction support frame according to claim 1, characterized in that: The outer supporting mechanism is also provided with an edge protection structure.

4. The I-shaped steel-concrete composite beam bridge deck concrete construction support frame according to claim 3, characterized in that: The edge protection structure comprises edge protection columns (2) arranged in sequence from front to back, the bottom ends of the edge protection columns (2) are installed against the ends of the suspended ends of the outer channel steel cross braces (16), and edge protection nets (1) are arranged between adjacent edge protection columns (2).

5. The I-shaped steel-concrete composite beam bridge deck concrete construction support frame according to claim 1, characterized in that: A plurality of wooden blocks (4) are provided between the top of the middle supporting mechanism, the top of the outer supporting mechanism and the bottom of the wooden template (3).

6. The I-shaped steel-concrete composite beam bridge deck concrete construction support frame according to claim 1, characterized in that: A bridge support (6) is arranged below the bridge steel main beam (5), and a bridge pad stone (7) is arranged between the bridge support (6) and the bridge cap beam.

7. The I-shaped steel-concrete composite beam bridge deck concrete construction support frame according to claim 1, characterized in that: The side of the middle connecting steel plate is welded and fixed on the middle channel steel cross brace (9), and the plate body of the middle connecting steel plate is provided with a mounting hole for connecting the middle channel steel diagonal brace (11). The middle channel steel diagonal brace (11) is detachably connected to the middle channel steel cross brace (9) through the middle connecting steel plate.

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