Modular fabricated building bridge

By employing a "凸"-shaped structure and positioning boss groove in modular bridge components, combined with the design of an elastomer, the problems of displacement and installation errors of bridge components under lateral forces are solved, achieving stable connection and efficient installation of bridge components.

CN224591298UActive Publication Date: 2026-08-04GUANGZHOU CITY POLYTECHNIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU CITY POLYTECHNIC
Filing Date
2025-09-08
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing modular prefabricated bridges are prone to displacement under lateral forces, and the problem of excessively narrow or wide gaps caused by installation errors between bridge components has not been effectively solved.

Method used

The bridge components are designed with a "凸"-shaped structure. The stable connection of the bridge components is ensured by the cooperation of positioning bosses and positioning grooves, combined with the use of elastomers. Elastomers are also installed between the bridge components to accommodate installation errors.

Benefits of technology

This achieved a stable connection of bridge components, avoided displacement, ensured reasonable spacing between bridge components and ease of installation, and improved construction efficiency.

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Abstract

This utility model relates to a modular prefabricated bridge structure, including a bridge arm and multiple bridge components. The multiple bridge components are sequentially installed on the bridge arm from left to right along its length. Each bridge component has a central column. A front support end extends to the left from the top of the central column, and a rear support end extends to the right from the bottom. The front support end overlaps the rear support end of the preceding bridge component. A positioning boss is fixedly provided at the bottom of the front support end. The rear support end supports the front support end of the following bridge component. A fixing groove and a rear support platform are sequentially provided from left to right on the rear support end. The fixing end can be completely installed within the fixing groove with a certain gap. A positioning groove is fixedly provided at the top of the rear support platform. This utility model solves the problem of easy displacement of modular prefabricated bridge structures under lateral forces by setting positioning bosses and positioning grooves, and by setting "convex" shaped bridge arms.
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Description

Technical Field

[0001] The utility model belongs to the technical field of bridges, and particularly relates to a modular prefabricated building bridge. Background Art

[0002] The modular prefabricated building bridge is a combination of modern building industrialization and efficient construction technology. It adopts standardized design, decomposes the bridge into multiple modules, realizes factory production and rapid on-site assembly, significantly shortens the construction period, and reduces the impact on traffic and environment. This kind of bridge not only has controllable quality, energy conservation and environmental protection, but also has rich shapes and can meet the urban landscape and cultural needs. With the continuous progress of technology and the gradual maturity of the market, the modular prefabricated building bridge will become an important trend in the construction of future urban pedestrian bridges, promoting the development of bridge construction towards a more efficient and environmentally friendly direction.

[0003] After retrieval, the publication number CN220521070U discloses a modular prefabricated building bridge, which solves the technical problem that the installation error between two sections of the modular prefabricated bridge structure is large, resulting in too narrow or too wide expansion joints, by installing an elastic structure between the bridge components. However, this modular assembly method does not set a limit module horizontally, and it is easy to cause misalignment between the modules under the action of horizontal force. Now, a modular prefabricated building bridge is proposed to solve the above problems. Summary of the Invention

[0004] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a modular prefabricated building bridge.

[0005] The technical solution of the utility model is as follows: a modular prefabricated building bridge, including a bridge arm and multiple bridge components; the multiple bridge components are sequentially installed on the bridge arm from left to right along the length direction of the bridge arm, and two bridge components are fixed by side-mounted connection blocks; the cross-section of the bridge arm is a "convex" structure; the bridge component is provided with an intermediate column; the top end of the intermediate column extends to the left end to form a front support end, and the bottom end of the intermediate column extends to the right end to form a rear support end; the front support end is used for lapping on the rear support end of the previous bridge component; the left end and the right end of the top end of the front support end are respectively provided with a front groove and a rear groove, and a fixed end extends downward at the left end of the front support end; a positioning boss is fixedly arranged at the bottom end of the front support end; the rear support end is used for supporting the front support end of the next bridge component; a fixed groove and a rear support platform are sequentially arranged on the rear support end from left to right; the fixed end can be completely installed in the fixed groove with a certain gap left; a positioning groove is fixedly arranged at the top end of the rear support platform; the shapes and positions of the positioning boss and the positioning groove correspond to each other, and the positioning boss can just be installed in the positioning groove.

[0006] Furthermore, the gap between the right end of the intermediate column in the first bridge assembly and the left end of the fixed end in the second bridge assembly is the first gap; the gap between the top end of the fixed groove in the first bridge assembly and the bottom end of the fixed end in the second bridge assembly is the second gap; the gap between the top end of the rear support platform in the first bridge assembly and the bottom end of the front support end in the second bridge assembly is the third gap; and the gap between the right end of the rear support platform in the first bridge assembly and the left end of the intermediate column in the second bridge assembly is the fourth gap.

[0007] Furthermore, a front elastic body is disposed in the first gap; a lower elastic body is disposed in the second gap; an upper elastic body is disposed in the third gap; and a rear elastic body is disposed in the fourth gap.

[0008] Furthermore, the front elastomer, the lower elastomer, the upper elastomer, and the rear elastomer are all TST stone fragment elastomers.

[0009] Furthermore, the bottom end of the rear support is provided with an installation groove to facilitate the installation of the bridge assembly on the bridge arm.

[0010] Furthermore, the connecting block is installed and fixed using bolts.

[0011] Furthermore, the rear support end is provided with a rear mounting hole and a front mounting hole on the side near the rightmost end and the side of the middle column, respectively, to facilitate the installation of the connecting block.

[0012] Furthermore, the rear groove of the aforementioned bridge assembly and the front groove of the subsequent bridge assembly are merged to form a recess; the bottom end of the recess communicates with the first gap; two layers of support members and one layer of waterproof member are installed at the bottom end of the recess; the waterproof member is located between the two layers of support members; an elastic adhesive layer is provided at the top end of the top support member; the elastic adhesive layer is flush with the top surface of the bridge assembly.

[0013] Furthermore, the elastic adhesive layer is a TST sol-gel layer.

[0014] Beneficial effects 1) This utility model makes the installation of bridge construction more convenient and improves work efficiency by modular design and prefabrication of bridge components.

[0015] 2) This utility model solves the problem of large installation errors between two sections of a modular prefabricated bridge structure, which leads to excessively narrow or wide gaps between bridge components, by installing an elastomer between the bridge components.

[0016] 3) This utility model solves the problem of easy displacement of modular prefabricated building bridges under lateral forces by setting positioning bosses and positioning grooves and setting "convex" shaped bridge arms. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a modular prefabricated building bridge according to this utility model; Figure 2 This is a top view of a modular prefabricated building bridge according to this utility model; Figure 3 This is a schematic diagram of the top structure of a bridge component in a modular prefabricated building bridge according to this utility model. Figure 4 This is a schematic diagram of the bottom structure of a bridge component in a modular prefabricated building bridge according to this utility model. Figure 5 This is a schematic diagram of the internal structure between bridge components in a modular prefabricated building bridge according to this utility model. Figure 6 This utility model relates to an assembly diagram of bridge components in a modular prefabricated building bridge. Figure 7 This is a schematic diagram of the fixing between bridge components in a modular prefabricated building bridge according to this utility model.

[0018] Explanation of reference numerals in the attached figures 1-Bridge component, 2-Bridge arm, 3-Elastic adhesive layer, 4-Connecting block, 5-Bolt, 6-Intermediate column, 7-Front support end, 8-Front groove, 9-Rear groove, 10-Fixing end, 11-Rear support end, 12-Fixing groove, 13-Rear support platform, 14-Mounting groove, 15-Positioning groove, 16-Positioning boss, 17-Front mounting hole, 18-Rear mounting hole, 19-Supporting component, 20-Waterproof component, 21-First gap, 22-Second gap, 23-Third gap, 24-Fourth gap, 25-Front elastic body, 26-Lower elastic body, 27-Upper elastic body, 28-Rear elastic body Detailed Implementation The embodiments of this utility model are described in detail below. The following embodiments are implemented based on the technical solution of this utility model, and detailed implementation methods and specific operation processes are given. However, the protection scope of this utility model is not limited to the following embodiments.

[0019] This utility model provides a modular prefabricated building bridge, such as Figure 1 and Figure 2As shown, the overall structural schematic diagram and top view of a modular prefabricated building bridge of the present utility model are respectively shown, including a bridge component 1, a bridge arm 2, an elastic bonding layer 3, a connecting block 4, and a bolt 5. The multiple bridge components 1 are sequentially installed on the bridge arm 2 from left to right along the length direction of the bridge arm 2, and the two bridge components 1 are fixed by installing the connecting block 4 on the side. The cross-section of the bridge arm 2 is a "convex" shaped structure. The installation of the connecting block 4 is fixed by using the bolt 5. By modularly designing the prefabricated components of the bridge component 1, the installation of the building bridge is made more convenient, improving work efficiency.

[0020] As Figure 3 and Figure 4 shown, the top structural schematic diagram and bottom structural schematic diagram of the bridge component 1 in a modular prefabricated building bridge of the present utility model are respectively shown, including an intermediate column 6, a front support end 7, a front groove 8, a rear groove 9, a fixed end 10, a rear support end 11, a fixed groove 12, a rear support platform 13, an installation groove 14, a positioning groove 15, a positioning boss 16, a front side installation hole 17, and a rear side support hole 18. The bridge component 1 is provided with the intermediate column 6. The top of the intermediate column 6 extends to the left end to form the front support end 7, and the bottom of the intermediate column 6 extends to the right end to form the rear support end 11. The front support end 7 is used for lapping on the rear support end 11 of the previous bridge component 1. The left end and right end of the top of the front support end 7 are respectively provided with the front groove 8 and the rear groove 9, and the fixed end 10 extends downward at the left end of the front support end 7. The bottom end of the front support end 7 is fixedly provided with the positioning boss 16. The rear support end 11 is used for supporting the front support end 7 of the next bridge component 1. The fixed groove 12 and the rear support platform 13 are sequentially arranged from left to right on the rear support end 11. The fixed end 10 can be completely installed in the fixed groove 12 with a certain gap left. The top of the rear support platform 13 is fixedly provided with the positioning groove 15. The shapes and positions of the positioning boss 16 and the positioning groove 15 correspond to each other, and the positioning boss 16 can just be installed in the positioning groove 15. The rear side installation hole 18 and the front side installation hole 17 are respectively arranged on the side of the rear support end 11 near the rightmost end and the side of the intermediate column 6, facilitating the installation of the connecting block 4. The bottom end of the rear support end 11 is provided with the installation groove 14, facilitating the installation of the bridge component 1 on the bridge arm 2. By setting the positioning boss and the positioning groove and setting the "convex" shaped bridge arm, the problem that the modular prefabricated building bridge is prone to displacement under lateral force is solved.

[0021] As Figure 5The diagram shows the internal structure of a bridge component 1 in a modular prefabricated bridge according to this utility model. It includes a support member 19, a waterproof component 20, a first gap 21, a second gap 22, a third gap 23, a fourth gap 24, a front elastic body 25, a lower elastic body 26, an upper elastic body 27, and a rear elastic body 28. The first gap 21 is the gap between the right end of the intermediate column 6 in the first bridge component 1 and the left end of the fixed end 10 in the second bridge component 1. The second gap 22 is the gap between the top end of the fixed groove 12 in the first bridge component 1 and the bottom end of the fixed end 10 in the second bridge component 1. The third gap 23 is the gap between the top end of the rear support platform 13 in the first bridge component 1 and the bottom end of the front support end 7 in the second bridge component 1. The third gap 23 is the gap between the right end of the rear support platform 13 in the first bridge component 1 and the left end of the intermediate column 6 in the second bridge component 1. The gap is the fourth gap 24; a front elastic body 25 is provided in the first gap 21; a lower elastic body 26 is provided in the second gap 22; an upper elastic body 27 is provided in the third gap 23; a rear elastic body 28 is provided in the fourth gap 24; the front elastic body 25, the lower elastic body 26, the upper elastic body 27 and the rear elastic body 28 are all TST crushed stone elastic bodies; the rear groove 9 of the front bridge component 1 and the front groove 8 of the rear bridge component 1 are combined to form a groove; the bottom end of the groove communicates with the first gap 21; two layers of the support members 19 and one layer of the waterproof member 20 are installed at the bottom end of the groove; the waterproof member 20 is in the middle of the two layers of support members 21; the top end of the top support member 21 is provided with the elastic adhesive layer 3; the elastic adhesive layer 3 is flush with the top surface of the bridge component 1; the elastic adhesive layer 3 is a TST sol layer. By installing an elastomer between bridge components 1, the problem of excessively narrow or wide gaps between bridge components 1 caused by large installation errors between the two sections of the modular prefabricated bridge structure was solved.

[0022] like Figure 6 and Figure 7 The figures shown are assembly diagrams and fixing diagrams of bridge components in a modular prefabricated building bridge according to this utility model.

[0023] Those skilled in the art should know that TST crushed stone elastomer is a mixture of TST elastomeric material and stone. TST crushed stone elastomer is a commonly used elastomer in seamless bridge expansion joints in the prior art; the two ends of the bridge arm 2 are connected to external fixing structures.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A modular prefabricated building bridge, comprising a bridge arm and a plurality of bridge components, characterized in that the plurality of bridge components are sequentially installed on the bridge arm from left to right along the length direction of the bridge arm, and two adjacent bridge components are fixed by side-mounted connecting blocks; the cross-section of the bridge arm is a "convex" shape structure; the bridge component is provided with an intermediate column; at the top of the intermediate column, a front support end extends towards the left end, and at the bottom of the intermediate column, a rear support end extends towards the right end; the front support end is used for lapping on the rear support end of the previous bridge component; at the left and right ends of the top of the front support end, a front groove and a rear groove are respectively provided, and at the left end of the front support end, a fixing end extends downward; a positioning boss is fixedly arranged at the bottom of the front support end; the rear support end is used for supporting the front support end of the next bridge component; from left to right, a fixing groove and a rear support platform are sequentially arranged on the rear support end; the fixing end can be completely installed in the fixing groove with a gap left; a positioning groove is fixedly arranged at the top of the rear support platform; the shapes and positions of the positioning boss and the positioning groove correspond to each other, and the positioning boss can just be installed in the positioning groove.

2. The modular prefabricated building bridge according to claim 1, characterized in that the gap between the right end of the intermediate column in the previous bridge component and the left end of the fixing end in the next bridge component is the first gap; the gap between the top of the fixing groove in the previous bridge component and the bottom of the fixing end in the next bridge component is the second gap; the gap between the top of the rear support platform in the previous bridge component and the bottom of the front support end in the next bridge component is the third gap; the gap between the right end of the rear support platform in the previous bridge component and the left end of the intermediate column in the next bridge component is the fourth gap.

3. The modular prefabricated building bridge according to claim 2, characterized in that a front elastic body is arranged in the first gap; a lower elastic body is arranged in the second gap; an upper elastic body is arranged in the third gap; a rear elastic body is arranged in the fourth gap.

4. The modular prefabricated building bridge according to claim 3, characterized in that the front elastic body, the lower elastic body, the upper elastic body and the rear elastic body are all TST crushed stone elastic bodies.

5. The modular prefabricated building bridge according to claim 1, characterized in that an installation groove is arranged at the bottom of the rear support end, facilitating the installation of the bridge component on the bridge arm.

6. The modular prefabricated building bridge according to claim 1, characterized in that the connection block is fixed by using bolt connection.

7. The modular prefabricated building bridge according to claim 1, characterized in that rear installation holes and front installation holes are respectively arranged on the side surface of the rear support end near the rightmost side and the side surface of the intermediate column, facilitating the installation of the connection block.

8. The modular prefabricated building bridge according to claim 3, characterized in that The rear groove of the aforementioned bridge assembly and the front groove of the subsequent bridge assembly are combined to form a recess; the bottom end of the recess communicates with the first gap; two layers of support members and one layer of waterproof member are installed at the bottom end of the recess; the waterproof member is located between the two layers of support members; an elastic adhesive layer is provided at the top of the top support member; the elastic adhesive layer is flush with the top surface of the bridge assembly.

9. The modular prefabricated bridge according to claim 8, characterized in that, The elastic adhesive layer is a TST sol-gel layer.