Construction bracket structure of steel-concrete composite beam bridge deck slab

Abstract

The utility model discloses a construction bracket structure of a steel-concrete composite beam bridge deck slab, which comprises a plurality of bracket units, the plurality of bracket units are sequentially arranged at intervals along the length direction of the bridge deck slab, each bracket unit comprises a transverse rod, a vertical rod, a diagonal web member and a connecting piece, the transverse rod is arranged along the horizontal direction, the vertical rod is connected with the transverse rod and is arranged along the vertical direction, and the diagonal web member is connected with the transverse rod. The ends, close to the bridge deck slab, of the vertical rods comprise first through holes, the diagonal web members are obliquely connected between the transverse rods and the vertical rods, one ends of the diagonal web members are connected with the steel-concrete composite beams, the connecting pieces can be connected to the first through holes, the steel-concrete composite beams comprise top plates, second through holes are formed in the top plates, and the second through holes correspond to the first through holes. And the connecting pieces can penetrate through the first through holes and the second through holes to limit the vertical rods on the top plate, so that each bracket unit can be mounted on the steel-concrete composite beam. According to the technical scheme, mounting and dismounting are convenient, construction cost and construction difficulty are reduced, construction efficiency is improved, and the requirement for appearance quality of the steel box girder web is met.

Description

Technical Field

[0001] The utility model relates to the technical field of steel-concrete composite beams, in particular to a construction bracket structure of a steel-concrete composite beam bridge deck. Background Art

[0002] Steel-concrete composite bridges give full play to the material properties of steel and concrete, and make the two materials bear the force synergistically through connectors. They are in line with the construction concept of assembled, green, low-carbon, sustainable, easy-to-maintain, and intelligent bridge construction, and have broad development prospects. Due to the particularity of the structure, steel-concrete composite beams usually adopt a step-by-step construction method for steel beams and concrete bridge decks. The steel beams are first erected in place, and then the bridge decks are constructed. In the existing technology, it is usually necessary to weld ear plates to the web and top plates of the steel box beam to install the bull foot brackets. However, this method is prone to damage to the web and top plates of the steel box beam during welding and dismantling, affecting the quality and appearance of the steel box beam. It is also not convenient for installation and disassembly, which increases construction costs and construction difficulty, and reduces construction efficiency. Utility Model Content

[0003] The embodiment of the utility model provides a construction bracket structure for a steel-concrete composite beam bridge deck, which is easy to install and disassemble, reduces construction costs and construction difficulty, improves construction efficiency, and meets the appearance quality requirements of the steel box beam web.

[0004] An embodiment of the present utility model provides a construction bracket structure for a steel-concrete composite beam bridge deck. The construction bracket structure includes a plurality of bracket units, which are arranged in sequence along the length direction of the bridge deck. Each bracket unit includes: a cross bar, a vertical bar, a diagonal web and a connecting piece. The cross bar is arranged in the horizontal direction, the vertical bar is connected to the cross bar and is arranged in the vertical direction, the vertical bar includes a first through hole at one end near the bridge deck, the diagonal web is obliquely connected between the cross bar and the vertical bar, one end of the diagonal web is connected to the steel-concrete composite beam, and the connecting piece can be connected to the first through hole, wherein the steel-concrete composite beam includes a top plate, a second through hole is arranged on the top plate, and the second through hole is arranged corresponding to the first through hole. The connecting piece can pass through the first through hole and the second through hole to limit the vertical bar to the top plate, so that each bracket unit can be installed on the steel-concrete composite beam.

[0005] The technical solution of the present invention is to set a vertical rod, and the end of the vertical rod close to the bridge deck includes a first through hole, and a second through hole is set in the bridge deck. The position of the second through hole is set in a one-to-one correspondence with the first through hole. The first through hole and the second through hole can be connected by a connecting piece, so that the bracket unit can be installed on the steel-concrete composite beam, which is convenient for installation and disassembly, reduces construction costs and construction difficulty, and improves construction efficiency. It is only necessary to set the second through hole in the top plate of the steel-concrete composite beam, and there is no need to drill holes or weld ear plates on the web of the steel box beam, which meets the appearance quality requirements of the web of the steel box beam.

[0006] According to the aforementioned embodiment of the present invention, each bracket unit further includes: a first connecting rod and a second connecting rod, the first connecting rod being vertically connected between the cross rod and the diagonal web rod, and the second connecting rod being obliquely connected between the cross rod and the diagonal web rod.

[0007] According to the aforementioned embodiment of the present invention, the construction bracket structure further comprises: a support rib. The support rib is located on the top of the cross bar, the support rib extends along the arrangement direction of the plurality of bracket units, and the cross bar in each bracket unit is respectively connected to the support rib.

[0008] According to the aforementioned embodiment of the present invention, the construction bracket structure includes a plurality of support ribs, and the plurality of support ribs are sequentially arranged along the extension direction of the crossbar.

[0009] According to the aforementioned embodiment of the present invention, each bracket unit further includes: a third connecting rod and a support portion, wherein the third connecting rod is located above the cross rod and connected to the top plate; one end of the support portion is connected to the third connecting rod and the other end is connected to the support rib.

[0010] According to the aforementioned embodiment of the present invention, the support portion includes: a support rod and a supporting member connected to each other, the support rod is connected to the support rib, and the supporting member is connected to the third connecting rod.

[0011] According to the aforementioned embodiment of the present invention, a plurality of support portions are provided between the third connecting rod and the support rib along the extension direction of the cross bar, and the length of the support rod protruding from the surface of the support rib gradually decreases in the extension direction of the cross bar gradually approaching the bridge deck.

[0012] According to the aforementioned embodiment of the present invention, the construction bracket structure also includes: square timber pieces and bamboo plywood, the square timber pieces are arranged on the side of the third connecting rod away from the cross bar, the bamboo plywood is arranged on the side of the square timber pieces away from the cross bar, and the square timber pieces and bamboo plywood are extended along the arrangement direction of the multiple bracket units.

[0013] According to the aforementioned embodiment of the present invention, a first node plate is provided on one side of the top plate close to the vertical rod. The first node plate includes a third through hole. The connecting member can sequentially pass through the second through hole, the third through hole, and the first through hole to limit the vertical rod.

[0014] According to the aforementioned embodiment of the present invention, the connecting member includes a bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the construction bracket structure of the steel-concrete composite beam bridge deck of the present utility model;

[0017] Figure 2 This is a schematic diagram of an installation structure of a construction bracket structure of a steel-concrete composite beam bridge deck according to an embodiment of the present invention, in which a plurality of bracket units are arranged in sequence;

[0018] Figure 3 for Figure 1 A partial enlarged view of the middle connector;

[0019] Figure 4 This is a structural diagram of a bracket unit in an embodiment of a construction bracket structure of a steel-concrete composite beam bridge deck of the present invention;

[0020] Figure 5 for Figure 1 A partial enlarged view of the third connecting rod;

[0021] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of the AA surface;

[0022] Figure 7 This is a schematic diagram of the first node plate structure in an embodiment of the construction bracket structure of the steel-concrete composite beam bridge deck of the present utility model.

[0023] Description of Figure Numbers:

[0024] Construction bracket structure of steel-concrete composite beam bridge deck - 1000, bridge deck - 2000, steel-concrete composite beam - 3000, guardrail - 4000, shear studs - 5000;

[0025] Bracket unit - 100, support rib - 200, connection system - 300, square wood - 400, bamboo plywood - 500;

[0026] Crossbar 110, vertical bar 120, diagonal brace 130, connector 140, first connecting bar 150, second connecting bar 160, third connecting bar 170, support portion 180;

[0027] First through hole 121, support rod 181, supporting member 182;

[0028] Top plate 310, first node plate 320, second node plate 330;

[0029] The second through hole 311 and the third through hole 321.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0034] The embodiment of the utility model provides a construction bracket structure for a steel-concrete composite beam bridge deck, which is easy to install and disassemble, reduces construction costs and construction difficulty, improves construction efficiency, and meets the appearance quality requirements of the steel box beam web.

[0035] like Figures 1 to 2 As shown, the embodiment of the present invention provides a construction bracket structure for a steel-concrete composite beam bridge deck, the construction bracket structure includes a plurality of bracket units 100, and the plurality of bracket units 100 are sequentially arranged along the length direction of the bridge deck 2000. Figures 2 to 4As shown, each bracket unit 100 includes: a horizontal bar 110, a vertical bar 120, a diagonal bar 130 and a connecting member 140. The horizontal bar 110 is arranged in the horizontal direction, the vertical bar 120 is connected to the horizontal bar 110 and is arranged in the vertical direction, and the diagonal bar 130 is obliquely connected between the horizontal bar 110 and the vertical bar 120. A triangular structure is formed between the horizontal bar 110, the vertical bar 120 and the diagonal bar 130. The vertical rod 120 includes a first through-hole 121 at one end near the bridge deck 2000. One end of the diagonal web 130 is connected to the steel-concrete composite beam 3000. A connector 140 can be connected to the first through-hole 121. The steel-concrete composite beam 3000 includes a top plate 310, which is provided with a second through-hole 311. The second through-hole 311 is arranged corresponding to the first through-hole 121. The connector 140 can pass through the first through-hole 121 and the second through-hole 311 to restrict the vertical rod 120 to the top plate 310, so that each bracket unit 100 can be installed on the steel-concrete composite beam 3000. In this embodiment of the utility model, the connector 140 includes a bolt.

[0036] The technical solution of the present utility model is to provide a vertical rod 120, the end of the vertical rod 120 near the bridge deck 2000 includes a first through hole 121, and a second through hole 311 is provided in the bridge deck 2000, and the position of the second through hole 311 is provided in a one-to-one correspondence with the first through hole 121. The first through hole 121 and the second through hole 311 can be connected by a connecting member 140, so that the bracket unit 100 can be installed on the steel-concrete composite beam 3000, which is convenient for installation and disassembly, reduces construction costs and construction difficulty, and improves construction efficiency. During the construction process, only the second through hole 311 needs to be provided in the top plate 310 of the steel-concrete composite beam 3000, and there is no need to drill holes or weld lugs in the web of the steel box beam, thus meeting the appearance quality requirements of the steel box beam web.

[0037] like Figure 1 as well as Figure 4 As shown, each bracket unit 100 further includes a first connecting rod 150 and a second connecting rod 160. The first connecting rod 150 is vertically connected between the cross bar 110 and the diagonal web member 130, and the second connecting rod 160 is obliquely connected between the cross bar 110 and the diagonal web member 130. The first connecting rod 150 and the second connecting rod 160 can improve the support force and stability of the bracket unit 100.

[0038] like Figure 1 As shown, the construction bracket structure 1000 further includes support ribs 200. The support ribs 200 are located on top of the crossbars 110 and extend along the arrangement direction of the multiple bracket units 100. The crossbars 110 in each bracket unit 100 are connected to the support ribs 200. The construction bracket structure 1000 includes multiple support ribs 200, which are sequentially arranged along the extension direction of the crossbars 110. In this embodiment, the construction bracket structure 1000 includes three support ribs 200.

[0039] like Figure 1 as well as Figure 4 As shown, a connection system 300 is further provided between two adjacent bracket units 100 . The connection system 300 connects the two adjacent bracket units 100 , thereby enhancing the support force and stability of the bracket units 100 .

[0040] like Figure 1 as well as Figure 5 As shown, each bracket unit 100 further includes a third connecting rod 170 and a support portion 180. The third connecting rod 170 is located above the crossbar 110 and connected to the top plate 310. One end of the support portion 180 is connected to the third connecting rod 170 and the other end is connected to the support rib 200.

[0041] like Figure 5 As shown, the support portion 180 includes interconnected support rods 181 and supporting members 182. The support rods 181 are connected to the support ribs 200, and the supporting members 182 are connected to the third connecting rods 170. Multiple support portions 180 are provided between the third connecting rods 170 and the support ribs 200 along the extension direction of the crossbar 110. As the crossbar 110 approaches the bridge deck 2000, the length of the support rods 181 protruding from the surface of the support ribs 200 gradually decreases. In this embodiment, three support portions 180 are provided between the third connecting rods 170 and the support ribs 200 along the extension direction of the crossbar 110, and the third connecting rods 170 are arranged at an angle.

[0042] like Figure 3 as well as Figure 5 As shown, the construction bracket structure 1000 also includes: square timber pieces 400 and bamboo plywood 500. The square timber pieces 400 are arranged on the side of the third connecting rod 170 away from the cross bar 110, and the bamboo plywood 500 is arranged on the side of the square timber pieces 400 away from the cross bar 110. The square timber pieces 400 and the bamboo plywood 500 are extended along the arrangement direction of the multiple bracket units 100.

[0043] like Figures 6 and 7 As shown, a first gusset plate 320 is provided on the side of the top plate 310 near the vertical rod 120. The first gusset plate 320 includes a third through-hole 321. The connector 140 can sequentially pass through the second through-hole 311, the third through-hole 321, and the first through-hole 121 to position the vertical rod 120. A second gusset plate 330 is also provided at the connection between the diagonal web member 130 and the steel-concrete composite beam 3000 to provide an upward reaction force for the bracket unit 100, ensuring that the construction bracket structure 1000 meets the construction bearing capacity requirements.

[0044] In an embodiment of the present invention, the bridge deck 2000 includes a plurality of shear studs 5000, and a guardrail 4000 is provided on one side of the construction pedestrian walkway to protect the safety of construction workers. The horizontal bar 110 in the bracket unit 100 is made of I12 I-steel, the vertical bar 120 and the diagonal web 130 are made of two [8-type channel steels, and the first connecting bar 150 and the second connecting bar 160 are made of [8-type channel steels. The bracket units 100 are arranged in sequence along the length direction of the bridge deck 2000, with a spacing of 1.5m. The connection system 300 between the bracket units 100 is made of two [8-type channel steels. The second through hole 311 of the top plate 310 is a φ22 circular hole. The connecting piece 140 uses an M20 bolt to connect the vertical bar 120 to the top plate 310. The connecting piece 140 uses a high-strength bolt of grade 8.8. The support rib 200 is made of two [8-type channel steels, and the spacing between two adjacent support ribs 200 is 40cm. A third connecting rod 170 and a supporting portion 180 are provided on top of the supporting rib 200. The supporting rod 181 and the top supporting member 182 in the supporting portion 180 are in the form of a φ48*3mm steel pipe and a top supporting member. The top supporting member 182 is connected to the third connecting rod 170, and the third connecting rod 170 is a transverse [8-type channel steel. A longitudinal 100×100mm square timber piece 400 is arranged on the top of the third connecting rod 170, and the distance between two adjacent square timber pieces 400 is 30cm. A 15mm bamboo plywood 500 is arranged on the square timber piece 400. A second through hole 311 is drilled in the top plate 310 of the steel-concrete composite beam 3000, and the vertical rod 120 is bolted to the top plate 310 through the connecting member 140 to form an anchor structure. A first gusset plate 320 is provided on a side of the top plate 310 close to the vertical rod 120 . The first gusset plate 320 is made of a steel plate with a thickness of 16 mm. The third through hole 321 on the first gusset plate 320 is a φ22 circular hole.

[0045] The construction bracket structure 1000 of the steel-concrete composite beam 3000 bridge deck 2000 in the embodiment of the present invention is simple in form, low in cost, and easy to install and disassemble, which reduces the difficulty of construction and improves construction efficiency. The construction bracket structure 1000 of the steel-concrete composite beam 3000 bridge deck 2000 is simple in form and can be adjusted up and down according to different actual construction conditions, which is convenient for template installation linear control and disassembly, and is easy to operate. When installing the construction bracket structure 1000 of the steel-concrete composite beam 3000 bridge deck 2000, it is only necessary to set a second through hole in the top plate 310 of the steel-concrete composite beam 3000, and there is no need to punch holes or weld ear plates on the web of the steel-concrete composite beam 3000. It is easy to operate, stable and reliable, reduces safety risks, and meets the quality requirements of the appearance of the web of the steel-concrete composite beam 3000. The cross bars 110, vertical bars 120, diagonal webs 130, support ribs 200, connection systems 300 and other structures in the construction support structure 1000 of the steel-concrete composite beam 3000 bridge deck 2000 are all made of steel sections, which is beneficial to improving strength and rigidity, and can also be used in a turnover manner, saving materials, improving construction efficiency and also improving economic benefits.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A construction bracket structure for a steel-concrete composite beam bridge deck, characterized in that: The construction bracket structure includes a plurality of bracket units, which are sequentially arranged at intervals along the length direction of the bridge deck, and each bracket unit includes: A crossbar, wherein the crossbar is arranged in a horizontal direction; A vertical rod, the vertical rod being connected to the horizontal rod and arranged in a vertical direction, the vertical rod comprising a first through hole at one end close to the bridge deck; A diagonal web member, wherein the diagonal web member is obliquely connected between the horizontal bar and the vertical bar, and one end of the diagonal web member is connected to the steel-concrete composite beam; and a connecting member, the connecting member being connectable to the first through hole, Among them, the steel-concrete composite beam includes a top plate, and a second through hole is arranged on the top plate. The second through hole is arranged corresponding to the first through hole. The connecting member can pass through the first through hole and the second through hole to limit the vertical rod to the top plate, so that each of the bracket units can be installed on the steel-concrete composite beam.

2. The construction bracket structure according to claim 1, wherein: Each of the bracket units further comprises: a first connecting rod, the first connecting rod being vertically connected between the cross rod and the diagonal web; and A second connecting rod is obliquely connected between the cross rod and the diagonal web rod.

3. The construction bracket structure according to claim 1, wherein: The construction bracket structure also includes: A support rib is located at the top of the cross bar, and the support rib is extended along the arrangement direction of the plurality of bracket units. The cross bar in each bracket unit is connected to the support rib respectively.

4. The construction bracket structure according to claim 3, characterized in that: The construction bracket structure includes a plurality of support ribs, and the plurality of support ribs are sequentially arranged along the extension direction of the cross bar.

5. The construction bracket structure according to claim 3, wherein: Each of the bracket units further comprises: a third connecting rod, the third connecting rod being located above the cross rod and connected to the top plate; and A support portion, one end of which is connected to the third connecting rod, and the other end of which is connected to the support rib.

6. The construction bracket structure according to claim 5, characterized in that: The support portion includes: A supporting rod and a supporting member are connected to each other, wherein the supporting rod is connected to the supporting rib, and the supporting member is connected to the third connecting rod.

7. The construction bracket structure according to claim 6, characterized in that: A plurality of support portions are provided between the third connecting rod and the support rib along the extension direction of the crossbar. As the crossbar gradually approaches the bridge deck, the length of the support rod protruding from the surface of the support rib gradually decreases.

8. The construction bracket structure according to claim 6, wherein: The construction bracket structure also includes: a square wood piece, the square wood piece being arranged on a side of the third connecting rod away from the cross bar; and The bamboo plywood is arranged on a side of the square wood piece away from the cross bar, and the square wood piece and the bamboo plywood are extended along the arrangement direction of the multiple bracket units.

9. The construction bracket structure according to claim 1, wherein: A first node plate is provided on a side of the top plate close to the vertical rod. The first node plate includes a third through hole. The connecting member can sequentially pass through the second through hole, the third through hole, and the first through hole to limit the vertical rod.

10. The construction bracket structure according to claim 1, wherein: The connecting member includes a bolt.

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