Spliced bridge structure

Abstract

The utility model discloses a spliced bridge structure, and relates to the technical field of bridge structures, the spliced bridge structure comprises a plurality of piers and a plurality of box girders, the plurality of piers are arranged at intervals along the left-right direction, and a setting area is formed between every two adjacent piers; the multiple box girders are arranged in each setting area, and the multiple box girders located in the same setting area extend in the left-right direction, are arranged at intervals in the front-back direction and are connected with the two adjacent bridge piers in the up-down direction in an inserted mode; wherein the bridge pier is formed by splicing bridge pier assemblies, and the box girder is formed by splicing box girder assemblies. According to the technical scheme, the bridge pier is formed by splicing the bridge pier assemblies, the box girder is formed by splicing the box girder assemblies, the box girder is installed on the bridge pier to form the bridge structure, and the problems that on-site construction time is long, and influences on the environment and traffic are large are solved in a splicing mode.

Description

Technical Field

[0001] This utility model relates to the field of bridge structure technology, and in particular to a spliced ​​bridge structure. Background Technology

[0002] With the rapid development of China's economy, the population and vehicles in major and medium-sized cities across the country have grown rapidly, leading to a surge in road traffic flow and exacerbating the contradiction between road supply and demand. Increasing the capacity of existing urban roads for motor vehicles is mainly achieved through measures such as widening and upgrading existing roads, converting at-grade intersections into grade-separated interchanges, and constructing elevated roads and tunnels. Elevated bridges are a common solution.

[0003] Conventional methods for constructing viaducts—such as on-site casting—have a series of problems, including long construction periods, large land occupation, and significant impacts on traffic and the surrounding environment, which also place higher demands on the structure of the bridge. Utility Model Content

[0004] The main purpose of this utility model is to propose a spliced ​​bridge structure, which aims to solve the problems of long on-site construction time and significant impact on the environment and traffic.

[0005] To achieve the above objectives, the present invention proposes a spliced ​​bridge structure comprising multiple piers and multiple box girders. The multiple piers are spaced apart in the left-right direction, and a setting area is formed between two adjacent piers. Each setting area contains multiple box girders, which extend in the left-right direction and are spaced apart in the front-back direction, and are respectively inserted into two adjacent piers in the vertical direction. The piers are assembled from pier components, and the box girders are assembled from box girder components.

[0006] In one embodiment, the pier assembly includes:

[0007] Multiple piers extend vertically and are spaced apart in the front-to-back direction;

[0008] The cap beam extends in the front-to-back direction and is inserted into the multiple piers in the vertical direction.

[0009] In one embodiment, the pier includes:

[0010] The lower end of the first pier column unit is used to be buried in the ground;

[0011] The lower end of the second pier column unit is used to connect with the upper end of the first pier column unit, and the upper end is used to connect with the cap beam.

[0012] In one embodiment, the cap beam is provided with a plurality of grooves spaced apart along the front-rear direction. The grooves are used for mounting the bottom of the box beam and for limiting the position of the box beam in the front-rear direction.

[0013] In one embodiment, the box girder assembly includes:

[0014] The frame has an upward-opening cavity that extends through the left and right sides;

[0015] Multiple transverse partitions extend in the front-to-back direction and are spaced apart in the left-to-right direction within the cavity.

[0016] In one embodiment, the two inner sidewalls of the frame in the front and rear directions are correspondingly recessed to form a first slot, and multiple first slots are spaced apart in the left and right directions. The slots are for the horizontal partition to be inserted in the up and down directions, and the frame is welded to the horizontal partition.

[0017] In one embodiment, the transverse diaphragm has an upward-facing opening for a second slot, and the splicing bridge structure further includes a longitudinal diaphragm. The longitudinal diaphragm has a plurality of downward-facing openings for a third slot, and the plurality of third slots are respectively inserted into the second slots of the plurality of transverse diaphragms. The transverse diaphragm and the longitudinal diaphragm are welded together.

[0018] In one embodiment, the diaphragm is provided with a first through hole extending in the left-right direction, and / or,

[0019] The longitudinal partition is provided with a second through hole that extends in the front-to-back direction;

[0020] The box girder includes a reinforcing ring, which is disposed on the periphery of at least one of the first through hole and the second through hole.

[0021] In one embodiment, the splicing bridge structure includes multiple top plates, which are laid on the upper side of the frame to close the upper opening of the frame and connect adjacent frames.

[0022] In one embodiment, the spliced ​​bridge structure further includes multiple adhesive strips, with expansion joints formed between adjacent box girder structures in the left-right direction, and the multiple adhesive strips correspondingly filling the multiple expansion joints.

[0023] The technical solution of this utility model solves the problems of long on-site construction time and significant impact on the environment and traffic by using bridge pier components to form bridge piers and box girder components to form box girders, and then installing the box girders on the bridge piers to form a bridge structure. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A schematic diagram of an embodiment of the spliced ​​bridge structure provided by this utility model;

[0026] Figure 2 for Figure 1 A structural schematic diagram of the frame of a mid-section spliced ​​bridge structure;

[0027] Figure 3 for Figure 1 A partial structural schematic diagram of a box girder assembly in a mid-span spliced ​​bridge structure;

[0028] Figure 4 for Figure 1 A schematic diagram of the longitudinal diaphragm in a mid-span spliced ​​bridge structure;

[0029] Figure 5 for Figure 1 A structural schematic diagram of a box girder assembly in a mid-span bridge structure.

[0030] Explanation of icon numbers:

[0031] 100. Constructed bridge structure; 1. Pier; 11. Pier assembly; 111. Pier column; 1111. First pier column unit; 1112. Second pier column unit; 112. Cap beam; 1121. Groove; 2. Box girder; 21. Box girder assembly; 211. Frame; 2111. First slot; 212. Transverse diaphragm; 2121. Second slot; 2122. First through hole; 213. Longitudinal diaphragm; 2131. Third slot; 2132. Second through hole; 3. Top plate.

[0032] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0034] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0035] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] Conventional methods for constructing viaducts—such as on-site casting—have a series of problems, including long construction periods, large land occupation, and significant impacts on traffic and the surrounding environment, which also place higher demands on the structure of the bridge.

[0037] This utility model proposes a spliced ​​bridge structure.

[0038] Please see Figures 1 to 2 In one embodiment of this utility model, the spliced ​​bridge structure 100 includes multiple piers 1 and multiple box girders 2. The multiple piers 1 are spaced apart in the left-right direction, and a setting area is formed between two adjacent piers 1. Multiple box girders 2 are set in each setting area. The multiple box girders 2 located in the same setting area extend in the left-right direction and are spaced apart in the front-back direction, and are respectively inserted into two adjacent piers 1 in the vertical direction. The piers 1 are spliced ​​from pier components 11, and the box girders 2 are spliced ​​from box girder components 21.

[0039] The technical solution of this utility model involves splicing bridge pier components 11 to form bridge pier 1, and splicing box girder components 21 to form box girder 2. The box girder 2 is then installed on the bridge pier 1 to form a bridge structure. Both the bridge pier components 11 and the box girder components 21 contain multiple smaller parts, which are prefabricated in a factory and then transported to the site for installation. This reduces the time required for on-site pouring and fabrication, minimizes the impact on on-site traffic, and reduces the impact on the site environment. The left-right direction represents the length of the spliced ​​bridge structure 100, the front-back direction represents the width of the spliced ​​bridge structure 100, and the up-down direction represents the height of the spliced ​​bridge structure 100.

[0040] Pier 1 is a relatively large component in the bridge structure. Therefore, pier 1 is designed with splicing. The pier assembly 11 includes multiple pier columns 111 and cap beams 112. The multiple pier columns 111 extend vertically and are spaced apart in the front-to-back direction. The cap beams 112 extend in the front-to-back direction and are inserted into the multiple pier columns 111 vertically. The pier columns 111 determine the height of the bridge. The cap beams 112 are erected on the multiple piers 1 to support the box girder 2. Since the pier assembly 11 is composed of multiple spliced ​​components, a certain stability is required. The lower side of the cap beams 112 is provided with multiple insertion holes, and the upper ends of the multiple pier columns 111 are inserted into these insertion holes. Because the pier columns 111 are relatively fixed to the ground, and the cap beams 112 cooperate with the pier columns 111 and are constrained by the pier columns 111, the multiple pier columns 111 and cap beams 112 are fixed relative to the ground under the action of gravity. Even under certain external forces, they can maintain stability.

[0041] When the bridge deck is high above the ground, the pier 111 is quite long, making it a large and inconvenient object to transport. Therefore, the pier 111 is designed as a spliced ​​structure, comprising a first pier unit 1111 and a second pier unit 1112. The lower end of the first pier unit 1111 is buried in the ground; the lower end of the second pier unit 1112 is inserted into the upper end of the first pier unit 1111, and the upper end is inserted into the cap beam 112. The connection between the first pier unit 1111 and the second pier unit 1112 is also a hole-to-column insertion method.

[0042] Since the cap beam 112 needs to support multiple box beams 2, in order to limit the box beams 2 in the front-back direction and set the installation position for easy installation and positioning, the cap beam 112 is provided with multiple grooves 1121 at intervals along the front-back direction. The grooves 1121 are used for the bottom of the box beams 2 to be installed, and the two sides of the grooves 1121 in the front-back direction are used to limit the box beams 2 in the front-back direction.

[0043] Box girder 2 is also a large component. For ease of transportation, box girder 2 is also modularized. The box girder assembly 21 includes: a frame 211 and multiple transverse diaphragms 212. The frame 211 has an upward-opening cavity that extends through the left and right directions. The multiple transverse diaphragms 212 extend in the front-back direction and are spaced apart in the cavity in the left-right direction. The cavity in the frame 211 is designed to reduce the weight on the pier 1. The multiple transverse diaphragms 212 in the cavity are designed to ensure the overall strength of box girder 2. The transverse diaphragms 212 also enhance the support for the top plate 3. The frame 211 can also be disassembled into two side plates and a bottom plate for splicing. The angle between the two side plates and the bottom plate is greater than 90 degrees, which makes the area of ​​the top plate 3 laid on top of the box girder 2 larger, thereby making the bridge deck wider.

[0044] The specific installation method of the partition plate 212 is as follows: the two inner sidewalls of the frame 211 in the front and rear directions are correspondingly recessed to form the first slot 2111. The first slot 2111 is provided with multiple slots at intervals in the left and right directions. The slots are for the partition plate 212 to be inserted in the up and down directions to realize the positioning of the partition plate 212. Then the frame 211 and the partition plate 212 are welded to ensure stability.

[0045] When the required bridge deck width is fixed, the larger the width of a single box girder 2, the fewer box girders 2 are needed. When the width of the box girder 2 needs to be as wide as possible, the dimensions of the transverse diaphragm 212 in the front-rear direction become larger. Because the transverse diaphragm 212 is welded to the frame 211, the larger the width of a single box girder 2, the greater the pressure it bears. To ensure the stability and load-bearing capacity of the transverse diaphragm 212 (or the box girder 2 structure), a reinforcing structure is also required. The transverse diaphragm 212 has an upward-facing opening with a second slot 2121, and the longitudinal diaphragm 213 has multiple downward-facing openings with multiple third slots 2131. The multiple third slots 2131 are respectively inserted into the corresponding second slots 2121 of the multiple transverse diaphragms 212. The transverse diaphragms 212 are welded to the longitudinal diaphragms. The longitudinal diaphragms can support the transverse diaphragms 212 on the one hand, and on the other hand, they can also share the pressure from the top plate 3.

[0046] To reduce the overall weight of the box girder 2 structure, the transverse diaphragm 212 is provided with a first through hole 2122 extending in the left-right direction, and / or the longitudinal diaphragm 213 is provided with a second through hole 2132 extending in the front-back direction; this is to reduce the overall weight of the box girder 2 structure while ensuring high strength. The box girder 2 includes a reinforcing ring, which is provided on the periphery of at least one of the first through hole 2122 and the second through hole 2132.

[0047] In order to enable vehicles and pedestrians to pass on the box girder 2, the spliced ​​bridge structure 100 includes multiple top plates 3, which are laid on the upper side of the frame 211 to close the upper opening of the frame 211 and connect adjacent frames 211.

[0048] To regulate displacement and connection between the superstructure caused by vehicle loads and bridge construction materials, expansion joints are formed at intervals between two adjacent box girders 2 in the left-right direction. The spliced ​​bridge structure 100 also includes multiple rubber strips, which are correspondingly filled into the expansion joints. The expansion joints can accommodate deformations caused by temperature changes, concrete shrinkage, and live loads. During bridge use, temperature variations may cause deformation; continuous deformation will alter the bridge's normal shape and even affect its normal use. The application of expansion joints utilizes elastic devices installed at the expansion joints to transfer the pressure generated by road and bridge deformation to the elastic structure of the expansion joint, protecting the road and bridge and ensuring the integrity of its shape and proper functioning.

[0049] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A spliced ​​bridge structure, characterized in that, include: Multiple bridge piers are spaced apart in the left-right direction, and a setting area is formed between two adjacent bridge piers; Multiple box girders are provided in each of the aforementioned installation areas. The multiple box girders located in the same installation area extend in the left-right direction and are spaced apart in the front-back direction, and are respectively inserted into two adjacent bridge piers in the vertical direction. The bridge piers are assembled from bridge pier components, and the box girders are assembled from box girder components.

2. The spliced ​​bridge structure as described in claim 1, characterized in that, The pier assembly includes: Multiple piers extend vertically and are spaced apart in the front-to-back direction; The cap beam extends in the front-to-back direction and is inserted into the multiple piers in the vertical direction.

3. The spliced ​​bridge structure as described in claim 2, characterized in that, The piers include: The lower end of the first pier column unit is used to be buried in the ground; The lower end of the second pier column unit is used to connect with the upper end of the first pier column unit, and the upper end is used to connect with the cap beam.

4. The spliced ​​bridge structure as described in claim 2, characterized in that, The cap beam is provided with multiple grooves at intervals along the front-to-back direction. The grooves are used for installation at the bottom of the box beam and for limiting the position of the box beam in the front-to-back direction.

5. The spliced ​​bridge structure as described in claim 1, characterized in that, The box girder assembly includes: The frame has an upward-opening cavity that extends through the left and right sides; Multiple transverse partitions extend in the front-to-back direction and are spaced apart in the left-to-right direction within the cavity.

6. The spliced ​​bridge structure as described in claim 5, characterized in that, The two inner sidewalls of the frame in the front and rear directions are correspondingly recessed to form first slots. Multiple first slots are spaced apart in the left and right directions. The slots are for the horizontal partition to be inserted in the up and down directions. The frame is welded to the horizontal partition.

7. The spliced ​​bridge structure as described in claim 6, characterized in that, The transverse diaphragm has an upward-facing opening for a second slot. The splicing bridge structure also includes a longitudinal diaphragm, which has multiple downward-facing openings for a third slot. The multiple third slots are respectively inserted into the second slots of the multiple transverse diaphragms. The transverse diaphragms and the longitudinal diaphragms are welded together.

8. The spliced ​​bridge structure as described in claim 7, characterized in that, The diaphragm is provided with a first through hole extending in the left-right direction, and / or, The longitudinal partition is provided with a second through hole that extends in the front-to-back direction; The box girder includes a reinforcing ring, which is disposed on the periphery of at least one of the first through hole and the second through hole.

9. The spliced ​​bridge structure as described in claim 5, characterized in that, The spliced ​​bridge structure includes multiple top plates, which are laid on the upper side of the frame to close the opening on the upper side of the frame and connect adjacent frames.

10. The spliced ​​bridge structure as described in claim 1, characterized in that, The spliced ​​bridge structure also includes multiple adhesive strips, with expansion joints formed between adjacent box girder structures in the left-right direction, and the multiple adhesive strips correspondingly filling the multiple expansion joints.

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