Bridge steel beam assembly supporting structure

Abstract

The utility model provides a bridge steel beam assembly supporting structure which comprises a main tower mechanism, a main body supporting mechanism and a base supporting mechanism, the main tower mechanism and the main body supporting mechanism are both fixedly connected to the base supporting mechanism, and the main tower mechanism comprises a main tower body and an inclined supporting mechanism. The main body supporting mechanism comprises a main beam supporting mechanism, and the main beam supporting mechanism is fixedly connected with the base supporting mechanism; the bridge steel beam assembling and supporting structure is stable in bridge structure, has shock absorption and isolation performance and is convenient and fast to construct.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a bridge steel beam assembly support structure for bridge construction. Background Art

[0002] As is well known, in the technical field of bridge construction, the overall structural design of a bridge needs to be combined with the construction environment and foundation factors. At the same time, the structural characteristics of the bridge structure should also take into account the convenience of bridge construction. For example, in the southern part of the Lingnan region, the climate is controlled by the monsoon circulation. In winter, it is on the southeast edge of the polar continental high, often blowing northerly winds, and exactly in the area where cold and warm air masses meet, with large changes in meteorological elements. In summer, it is affected by the subtropical high and the South China Sea low-pressure trough, often blowing southerly winds. Due to the prevalence of warm and humid air currents, the climate is hot and rainy. Therefore, in the alluvial plain of the Pearl River Delta, the terrain is low and flat with small undulations, and in the section along the river with many tributaries, the structural design of the cross-river bridge needs to consider setting vertical bearings and lateral constraints for the transition piers, and the bearings also need to have seismic isolation and shock absorption performance. In addition to meeting the specification requirements for the strength and stiffness of the main beam structure of the bridge, the convenience of bridge construction also needs to be considered. Therefore, a bridge steel beam assembly support structure with seismic isolation and shock absorption performance, stable bridge structure and convenient construction is required. Summary of the Utility Model

[0003] Based on this, it is necessary for the utility model to provide a bridge steel beam assembly support structure with a stable bridge structure and convenient construction.

[0004] The utility model provides a bridge steel beam assembly support structure, which includes a main tower mechanism, a main body support mechanism and a base support mechanism. The main tower mechanism and the main body support mechanism are both fixedly connected to the base support mechanism. The main tower mechanism includes a main tower body and a diagonal bracing mechanism. The main body support mechanism includes a main beam support mechanism. The main beam support mechanism is fixedly connected to the base support mechanism. The main tower body is connected to the main beam support mechanism. The diagonal bracing mechanism includes a first diagonal bracing mechanism and a second diagonal bracing mechanism. The first diagonal bracing mechanism and the second diagonal bracing mechanism are respectively connected to both ends of the main tower body, and one end of the first diagonal bracing mechanism and the second diagonal bracing mechanism are respectively connected to one end of the main tower body, and the other ends of the first diagonal bracing mechanism and the second diagonal bracing mechanism are respectively connected to the main beam support mechanism, that is, a cable-stayed fixed structure is formed between the main tower body and the main beam support mechanism.

[0005] Preferably, the main tower body includes a main connection tower column unit and a branch connection tower column unit. There are at least six or more main connection tower column units. Each main connection tower column unit is sequentially connected to form a main connection tower column body. There are at least six or more branch connection tower column units. Each branch connection tower column unit is sequentially connected to form a branch connection tower column body. The main connection tower column is connected to the branch connection tower column body.

[0006] Preferably, the branch connection tower column body is provided with a first branch connection tower column body and a second branch main connection tower column body, and the first branch connection tower column body and the second branch main connection tower column body are connected in a V-shaped manner to form the branch connection tower column body.

[0007] Preferably, the branch connection tower column unit is composed of a tower wall plate, a diaphragm plate, a web plate and a stay cable anchorage, and the structure of the main connection tower column unit is the same as that of the branch connection tower column unit.

[0008] Preferably, the main tower body further includes a tower column connection mechanism, and the tower column connection mechanism includes an assembly support for connecting the branch connection tower column body to the base support mechanism.

[0009] Preferably, a cross brace structure is connected to the branch connection tower column body. The cross brace structure is provided with a first cross brace structure and a second cross brace structure. The first cross brace structure is connected to the lower part of the branch connection tower column body, and the second cross brace structure is connected to the upper part of the branch connection tower column body.

[0010] Preferably, the diagonal brace mechanism is provided with a stay cable structure. The stay cable structure is a steel stay cable structure. Both the first diagonal brace mechanism and the second diagonal brace mechanism include a plurality of stay cable structures, and each stay cable structure is spacedly connected between the main tower body and the main beam support mechanism.

[0011] Preferably, the main beam support mechanism includes a column support mechanism and an assembly support structure. The assembly support structure is fixedly connected to the column support mechanism. There are a plurality of the assembly support structures, and each assembly support structure is spacedly connected to the assembly support structure. There are multiple groups of the assembly support structures, at least five groups or more. Each group of assembly support structures is sequentially connected to form a complete main beam support mechanism body.

[0012] Preferably, the base support mechanism is a reinforced concrete foundation structure, and the base support mechanism includes a base support structure.

[0013] Preferably, the top of the base support structure is fixedly connected to the assembly support structure located in the middle of the main beam support mechanism body.

[0014] The beneficial effects of the present utility model are as follows: The present utility model provides a bridge steel beam assembly support structure, which includes a main tower mechanism, a main body support mechanism, and a base support mechanism. The main body support mechanism includes a main beam support mechanism. The main tower mechanism includes a main tower body and a diagonal bracing mechanism. The diagonal bracing mechanism includes a first diagonal bracing mechanism and a second diagonal bracing mechanism. The first diagonal bracing mechanism and the second diagonal bracing mechanism are respectively connected to both ends of the main tower body, forming a cable-stayed fixing structure between the main tower body and the main beam support mechanism. The bridge steel beam assembly support structure provided by the present utility model has a stable bridge structure, has seismic isolation and vibration reduction performance, and is convenient for construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will become more clearly understood from the following detailed description of the preferred embodiments shown in the drawings. The above and other objects, features, and advantages of the present utility model will become more apparent. Identical reference numerals indicate identical parts throughout all the drawings, and the drawings are not necessarily drawn to scale in actual size, with the emphasis on showing the gist of the present invention.

[0016] Figure 1 It is a schematic plan view of the preferred embodiment of the bridge steel beam assembly support structure of the present utility model;

[0017] Figure 2 It is a schematic side view of the bridge steel beam assembly support structure of the present utility model;

[0018] Figure 3 It is a schematic view of a partial embodiment of the bridge steel beam assembly support structure of the present utility model;

[0019] Figure 4 It is a schematic view of the preferred embodiment of the main tower body in the bridge steel beam assembly support structure of the present utility model;

[0020] Figure 5 It is a schematic view of a partial embodiment of the base support mechanism in the bridge steel beam assembly support structure of the present utility model.

[0021] In the figure: 1, main tower body; 2, main beam support mechanism; 20, assembly support structure; 21, Bailey beam; 22, distribution beam; 23, column support mechanism; 3, diagonal bracing mechanism; 30, base support mechanism; 31, first diagonal bracing mechanism; 32, second diagonal bracing mechanism; 5, assembly support; 6, cross bracing structure; 61, first cross bracing structure; 62, second cross bracing structure; 7, base support structure; 11, main connection tower column unit; 12, branch connection tower column unit; 13, branch connection tower column body; 131, first branch connection tower column body; 132, second branch connection tower column body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solution of the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited do not limit the present utility model.

[0023] As Figures 1-5 shown, an embodiment of the present utility model provides a bridge steel beam assembly support structure, including a main tower mechanism, a main body support mechanism, and a base support mechanism 30. The main tower mechanism and the main body support mechanism are both fixedly connected to the base support mechanism. The main tower mechanism includes a main tower body 1 and a diagonal support mechanism. The main body support mechanism includes a main beam support mechanism 2. The main beam support mechanism 2 is fixedly connected to the base support mechanism 30. The main tower body 1 is connected to the main beam support mechanism 2. The diagonal support mechanism 3 includes a first diagonal support mechanism 31 and a second diagonal support mechanism 32. The first diagonal support mechanism 31 and the second diagonal support mechanism 32 are respectively connected to both ends of the main tower body, and one end of the first diagonal support mechanism 31 and the second diagonal support mechanism 32 are respectively connected to one end of the main tower body, and the other end of the first diagonal support mechanism 31 and the second diagonal support mechanism 32 are respectively connected to the main beam support mechanism, that is, a cable-stayed fixed structure is formed between the main tower body 1 and the main beam support mechanism 2. Specifically, in a preferred embodiment, the bridge steel beam assembly support structure provided mainly by the main tower mechanism can adopt a single-tower single-cable-plane steel-concrete composite beam cable-stayed bridge structure. The main beam support mechanism 2 can adopt a combined cross-section of a separated open steel box + concrete bridge deck. The main tower adopts a steel-concrete structure. The cable-stayed cables formed by the first diagonal support mechanism 31 and the second diagonal support mechanism 32 are equivalent to a fan-shaped arrangement as seen from the embodiment drawings. Preferably, the main span cable distance can be set to 12 m, the side span cable distance can be set to 8 m, and the cable distance on the tower can be set to 2 m. The fan-shaped cable-stayed cable arrangement ensures the stability of the bridge and can also ensure the shock absorption effect of the bridge.

[0024] Refer to Figures 1-5 , in a further preferred embodiment, the main tower body 1 includes a main connection tower column unit 11 and a branch connection tower column unit 12. There are at least six or more main connection tower column units 11. Each main connection tower column unit is sequentially connected into a main connection tower column body. There are at least six or more branch connection tower column units 12. Each branch connection tower column unit is sequentially connected into a branch connection tower column body 13. The main connection tower column is connected to the branch connection tower column body. The branch connection tower column body is the main tower body arranged at the lower part, and the main connection tower column body is the main tower body arranged at the upper part.

[0025] Refer to Figures 1-5, in a further preferred embodiment, the branch connecting tower column 13 is provided with a first branch connecting tower column 131 and a second branch main connecting tower column 132. The first branch connecting tower column 131 and the second branch main connecting tower column 132 are connected in a V-shape to form the branch connecting tower column. Specifically, in the preferred embodiment, the branch connecting tower column 13 formed by the lower structure is the main tower body, which is a V-shaped tower longitudinally. The tower height can be 98m, the elevation of the tower top is +95.669m, the elevation of the top of the tower base is -0.331, and the elevation of the bridge deck at the center line of the tower is +21.361m. The tower column (main connecting tower column), the main beam (main beam support mechanism), and the bridge pier (base support mechanism) are in a fixed connection form to form a stable triangular structure; the tower column from the tower bottom to the tower top is successively: a 13.84m concrete tower column, a 1.793m steel-concrete combined section, and an 82.367m steel tower column; the stay cables adopt a central cable plane, with double cables arranged side by side, and the transverse spacing is 1.2m. The steel tower column uses Q420qD, and the material of the concrete tower column is C60.

[0026] Reference Figures 1-5 , in the preferred embodiment, the branch connecting tower column unit 12 is composed of a tower wall plate, a diaphragm, a web, and a stay cable anchorage. The structural connection methods of the tower wall plate, the diaphragm, the web, and the stay cable anchorage are prior arts and will not be elaborated in detail in this embodiment. The structure of the main connecting tower column unit 11 is the same as that of the branch connecting tower column unit 12. Specifically, in the embodiment, the tower wall of the main tower can adopt an equal-thickness design, with the plate thickness being 60mm. The ordinary diaphragm above the bridge deck of the steel tower column is 16mm thick, the cable anchor diaphragm is 40mm thick, the diaphragm in the tower-beam fixed connection area is 50mm thick, and the diaphragm below the bridge deck is 20mm thick. All of them adopt plate ribs for stiffening, with the web thickness being 60mm and stiffened by plate ribs. The height of the stiffening plate ribs is 400mm and the thickness is 32mm. The cable anchor diaphragm is 40mm thick. The bottom edge of the frame-type anchor plate is penetrated and welded to the diaphragm. A short anchor box plate is added between the two frame-type anchor plates, and both sides of the short anchor box plate are penetrated and welded to the frame-type anchor plate. The thicknesses of the frame-type anchor plate and the short anchor box plate are both 40mm.

[0027] Reference Figures 1-5In a further preferred embodiment, the main tower body 1 further includes a tower column connection mechanism, the tower column connection mechanism includes an assembly bracket 5, and the assembly bracket 5 is used to connect the branch connection tower column body 13 to the base support mechanism 3. In a specific embodiment, that is, in the usual construction process, the steel tower column, that is, the main tower body 1, is specifically divided into 10 segments from P0 to P9, wherein P0 is a steel-concrete combined segment, and the deadweight of the single-side tower column P0 segment is 79.33t, wherein the connection mechanism and the assembly bracket of the P0 segment are divided into two major parts: a guide system and a support system. The guide system is mainly used for guiding during the lowering process of the P0 segment, and includes a guide truss, embedded parts, and a plurality of support members. A, embedded parts B three parts, the guide truss is arranged on the side of the concrete tower column close to the side span, the support system is mainly used for temporary support after the P0 segment is lowered into place, including two parts: support truss and corbel, the support truss is arranged on the upstream and downstream sides of the concrete tower column, the embedded parts A, B and corbel are connected to the concrete tower column through M42 climbing cone, in addition, the P0-P9 steel tower segments are hoisted by tower crane, according to the special plan for steel tower installation and construction, when hoisting the P1 segment, the steel tower is hoisted synchronously with the steel beam S13, S14, S15 segments, when hoisting the steel tower to the P4 segment, the bracing steel pipe is installed, and after the P6 segment is hoisted and the two tower columns are closed, the bracing steel pipe is removed.

[0028] refer to Figures 1-5 In a further preferred embodiment, a cross brace structure 6 is connected to the branch connection tower column 13, and the cross brace structure 6 is provided with a first cross brace structure 61 and a second cross brace structure 62. The first cross brace structure 61 is connected to the lower position of the branch connection tower column, and the second cross brace structure 62 is connected to the upper position of the branch connection tower column, which can be connected by welding or other connection methods. The two cross brace structures can strengthen the overall structure of the branch connection tower body and the stress of the steel main tower body structure, so that the overall structural force of the steel main tower body meets the requirements of the specification. Specifically, in the embodiment, that is, during the construction of the bridge structure, the two cross brace structures can be manufactured by 2 φ630×8mm steel pipes, and the first layer of temporary cross braces is longer than the second layer, which is 7.73m. The material of the support seat can be Q235B, the allowable normal stress [σ]=140MPa, the support seat panel is 20mm thick, the vertical partition is 10mm thick, and the horizontal partition is 20mm thick.

[0029] refer to Figures 1-5 In a preferred embodiment, the diagonal bracing mechanism is provided with a cable-stayed structure, which is a steel zipper structure. The first diagonal bracing mechanism 31 and the second diagonal bracing mechanism 32 both include a plurality of cable-stayed structures 33, each of which is connected between the main tower body and the main beam support mechanism at intervals. Specifically, in the embodiment, the length of each cable-stayed structure is different, and the cable-stayed structure is a steel cable-stayed structure.

[0030] refer toFigures 1-5 In a preferred embodiment, the main beam support mechanism 2 includes a column support mechanism 23 and an assembled support structure. The assembled support structure 20 is fixedly connected to the column support mechanism 23. There are multiple assembled support structures 20, and each assembled support structure 20 is connected to the column support mechanism 23 at intervals. They can be connected by welding or other connection methods. There are multiple groups of assembled support structures 20, with at least five groups or more. Each group of assembled support structures is sequentially connected to form a complete main beam support mechanism body. The column support mechanism is a support structure composed of multiple steel pipe columns. In this embodiment, the assembled support structure is formed by connecting common existing Bailey beams 21, distribution beams 22 and other connection structures.

[0031] Reference Figures 1-5 In a preferred embodiment, the base support mechanism 30 is a reinforced concrete foundation structure. The base support mechanism 30 includes a base support structure 7. The base support structure 7 is a frame structure formed by sequentially connecting multiple steel pipe columns or other structures designed according to local conditions at the construction site, and mixed construction is carried out using model templates.

[0032] Reference Figures 1-5 In a preferred embodiment, the top of the base support structure 7 is fixedly connected to the assembled support structure located in the middle position of the main beam support mechanism body. Combined with the diagonal bracing mechanism, the overall structural shape of the bridge is similar to a fan shape, and its overall longitudinal view is a herringbone tower. The main beam support mechanism has shock absorption performance and the overall shape is unique.

[0033] The beneficial effects of the present utility model are as follows: The present utility model provides a bridge steel beam assembly support structure, including a main tower mechanism, a main body support mechanism and a base support mechanism. The main body support mechanism includes a main beam support mechanism. The main tower mechanism includes a main tower body and a diagonal bracing mechanism. The diagonal bracing mechanism includes a first diagonal bracing mechanism and a second diagonal bracing mechanism. The first diagonal bracing mechanism and the second diagonal bracing mechanism are respectively connected to both ends of the main tower body, forming a cable-stayed fixed structure between the main tower body and the main beam support mechanism. The bridge steel beam assembly support structure provided by the present utility model has a stable bridge structure, has seismic isolation and shock absorption performance, and is convenient for construction.

[0034] The above is only a preferred embodiment of the present utility model, and does not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A bridge steel beam assembly support structure, characterized in that: The main frame is connected to the frame by a main frame body and a diagonal bracing mechanism, and the main frame body is connected to the frame by a main frame body, and the main frame body is connected to the frame by a main frame body.

2. The bridge steel beam assembly support structure as claimed in claim 1, characterized in that: The main tower body includes a main connecting tower column unit and a branch connecting tower column unit. There are at least six main connecting tower column units, each of which is sequentially connected to form a main connecting tower column body. There are at least six branch connecting tower column units, each of which is sequentially connected to form a branch connecting tower column body. The main connecting tower column is connected to the branch connecting tower column body.

3. The bridge steel beam assembly support structure as claimed in claim 2, characterized in that: The branch connection tower column is provided with a first branch connection tower column and a second branch main connection tower column, and the first branch connection tower column and the second branch main connection tower column are connected in a herringbone shape to form a branch connection tower column.

4. The bridge steel beam assembly support structure as claimed in claim 3, characterized in that: The branch connection tower column unit is composed of a tower wall plate, a diaphragm, a web plate and a cable anchor, and the structure of the main connection tower column unit is the same as that of the branch connection tower column unit.

5. The bridge steel beam assembly support structure as claimed in claim 2, characterized in that: The main tower body also includes a tower column connection mechanism, and the tower column connection mechanism includes an assembling bracket, and the assembling bracket is used to connect the branch connection tower column body to the base support mechanism.

6. The bridge steel beam assembly support structure as claimed in claim 3, characterized in that: The branch connection tower column is connected with a cross bracing structure, and the cross bracing structure is provided with a first cross bracing structure and a second cross bracing structure, wherein the first cross bracing structure is connected to the lower position of the branch connection tower column, and the second cross bracing structure is connected to the upper position of the branch connection tower column.

7. The bridge steel beam assembly support structure as claimed in claim 1, characterized in that: The diagonal bracing mechanism is provided with a cable-stayed structure, which is a steel cable-stayed structure. The first diagonal bracing mechanism and the second diagonal bracing mechanism both include a plurality of cable-stayed structures, and each of the cable-stayed structures is connected at intervals between the main tower body and the main beam support mechanism.

8. The bridge steel beam assembly support structure as claimed in claim 1, characterized in that: The main beam support mechanism includes a column support mechanism and an assembled bracket structure, the assembled bracket structure is fixedly connected to the column support mechanism, there are multiple assembled bracket structures, each assembled bracket structure is connected to the assembled bracket structure at intervals, the assembled bracket structure is provided with multiple groups, at least five groups, and each group of assembled bracket structures is connected in sequence to form a complete main beam support mechanism body.

9. The bridge steel beam assembly support structure as claimed in claim 1, characterized in that: The base support mechanism is a reinforced concrete foundation structure, and the base support mechanism includes a base bracket structure.

10. The bridge steel beam assembly support structure as claimed in claim 9, characterized in that: The top of the base support structure is fixedly connected to the assembled support structure located in the middle position of the main beam support mechanism body.

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