UHPC bridge wet joint disassembly-free structure
By setting up a connecting base plate and a steel bar frame in the joints between the bridge prefabricated parts, the problem of mold removal in the prior art is solved, and the mold removal of the bridge wet joints is achieved, and the construction efficiency is improved.
Patent Information
- Application Number
- CN202422376715.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The mold needs to be removed during the treatment of wet joints of existing bridges, which increases the construction complexity and difficulty and affects the construction efficiency.
UHPC bridge wet joints are used to remove the disassembly structure. By setting up a connecting base plate and a steel bar frame in the joints between the bridge prefabricated parts, a casting area is formed and welded with the steel bars of the prefabricated parts to achieve sealing and stable connection, avoiding leakage, and there is no need to disassemble the mold after casting.
The removal of bridge wet joint molds is achieved without dismantling, reducing construction complexity and difficulty, and improving construction efficiency.
Smart Images
Figure CN223088264U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge joints, in particular to a demoulding-free structure for wet joints of UHPC bridges. Background Technique
[0002] With the continuous development of society, the requirements for buildings are getting higher and higher. When building bridges, wet joints of bridges usually need to be processed. The so-called wet joints of bridges refer to prefabricating prestressed concrete beam bodies in blocks and then assembling them into a long-span continuous beam by cantilever erection. The joints connecting the beam bodies are formed by cast-in-place concrete, and various types of formworks are usually required to cooperate with the pouring of concrete when carrying out wet joints of bridges.
[0003] Currently, the existing wet joint connection structures of bridges mainly use molds to carry the cast-in-place concrete on site to achieve the wet joints between two prefabricated components. In the existing wet joint process, the molds are mainly fixed between the joints of two prefabricated components through several plates, and the plates need to use several screw rods to hang the molds to ensure the stability of the molds in the joints. Although the wet joints between two prefabricated components can be achieved, the molds need to be removed after the wet joints are processed, increasing the construction complexity and construction difficulty, thus affecting the construction efficiency. Summary of the Invention
[0004] The purpose of the utility model is to provide a demoulding-free structure for wet joints of UHPC bridges, which can realize the demoulding-free of the molds for wet joints of bridges, reduce the construction complexity and construction difficulty, and thus improve the construction efficiency.
[0005] In order to achieve the above purpose, a demoulding-free structure for wet joints of UHPC bridges provided by the utility model has the following specific implementation schemes:
[0006] A demoulding-free structure for wet joints of UHPC bridges includes a connecting bottom plate, the connecting bottom plate is arranged in the joint between two prefabricated components of the bridge, and both sides of the connecting bottom plate are used for sealing connection with the bridge prefabricated components on both sides of the joint;
[0007] A pouring area is formed between the connecting bottom plate and the joint. A number of steel bar frames are arranged in the pouring area, the number of steel bar frames are arranged on the connecting bottom plate, and a number of connecting steel bars are arranged on the steel bar frames, and the connecting steel bars are welded to the steel bars on the bridge prefabricated components.
[0008] In some embodiments, the steel bar frame includes a first support and a second support, the first support and the second support are arranged oppositely, the first support and the second support are connected by a connecting steel bar arranged at the top of the steel bar frame, and the steel bar connections are arranged on the outer sides of the bottoms of the first support and the second support.
[0009] In some of these embodiments, both the first bracket and the second bracket are wavy in shape composed of several triangles, and both the first bracket and the second bracket are inclined gradually towards the connecting steel bar direction at the top from the bottom.
[0010] In some of these embodiments, connecting sections are provided on both sides of the bottom of the first bracket and the second bracket, and the connecting sections are embedded in the connecting bottom plate.
[0011] In some of these embodiments, a number of tie rods are provided on the steel bar frame, and the tie rods are welded to the bridge deck steel bars provided between two precast members.
[0012] In some of these embodiments, the tie rods are welded to the steel bar frame.
[0013] In some of these embodiments, the cross-section of the steel bar frame is triangular.
[0014] In some of these embodiments, the connecting bottom plate is a concrete plate or a UHPC plate.
[0015] Based on the above technical solutions, a UHPC bridge wet joint demoulding-free structure of the present utility model has the following beneficial effects compared with the prior art:
[0016] By arranging a connecting bottom plate in the joint between two precast members of the bridge, the joint between the connecting bottom plate and the precast members forms a pouring area. A number of arranged steel bar frames are arranged in the pouring area. The steel bar frames are arranged on the connecting bottom plate, and the steel bar frames are welded to the steel bars on the precast members. The connecting bottom plate is also hermetically connected to the precast members themselves, realizing the sealing of the joint and avoiding leakage during the process of pouring concrete. During actual use, concrete is poured into the pouring area to fill it up, cooperating with the steel bar frames and the steel bars of the precast members themselves to improve the connection stability between the concrete and the two precast members. The top concrete covers the joint, pouring both the steel bar frames and the steel bars on the precast members into the concrete. After pouring, there is no need to disassemble the connecting bottom plate, which does not affect the normal use of the bridge, effectively realizing the demoulding-free of the wet joint of the bridge, reducing the construction complexity and construction difficulty, and thus improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a top view schematic diagram of the present utility model;
[0018] Figure 2 It is a side view schematic diagram of the present utility model;
[0019] Figure 3 It is a sectional view schematic diagram of the present utility model;
[0020] Figure 4Schematic diagram of the cooperation between the present utility model and bridge precast components.
[0021] Description of reference numerals in the drawings:
[0022] 100, connecting bottom plate; 200, steel bar frame; 210, first support; 220, second support; 230, connecting section; 240, tie rod; 300, connecting steel bar rod; 400, precast component; 410, joint; 420, pouring area; 430, deck steel bars. Specific implementation manners
[0023] To facilitate the understanding of the present utility model, the specific embodiments of the present utility model will be described in more detail below with reference to the drawings of the specification.
[0024] Unless otherwise specified or defined, the "first, second..." used herein is only for distinguishing names and does not represent a specific quantity or order.
[0025] Unless otherwise specified or defined, the term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0026] It should be noted that "fixed to" and "connected to" herein can be directly fixed or connected to an element, or indirectly fixed or connected to an element.
[0027] As Figures 1-4 shown, a UHPC bridge wet joint demounting-free structure provided in this embodiment includes a connecting bottom plate 100. The connecting bottom plate 100 is arranged in a joint 410 between two precast components 400 of a bridge, and the connecting bottom plate 100 is hermetically connected to the two precast components 400 respectively. The connecting bottom plate 100 and the joint 410 cooperate to form a pouring area 420.
[0028] A number of arranged steel bar frames 200 are provided in the pouring area 420, and each steel bar frame 200 is connected to the connecting bottom plate 100.
[0029] Connecting steel bar rods 300 are provided at the top and both sides of the steel bar frame 200. The two ends of the steel bar frame 200 and the connecting steel bar rods 300 are welded to the steel bars on the precast component 400 on the same side. Moreover, the heights of the steel bar frame 200, the connecting steel bar rods 300 and the steel bars on the precast component 400 are all lower than the height of the joint 410, so as to ensure that after pouring concrete in the pouring area 420, the steel bar frame 200, the connecting steel bar rods 300 and the steel bars on the precast component 400 can be completely covered, and there is no structure of the wet joint at the top of the bridge, such that it is not necessary to disassemble the wet joint structure after the wet joint is completed.
[0030] A plurality of tie rods 240 are provided on the steel bar frame 200, and the tie rods 240 are welded to the bridge deck steel bars 430 provided between two precast members 400.
[0031] By providing a plurality of tie rods 240 on the steel bar frame 200 and welding the tie rods 240 to the bridge deck steel bars 430 provided between the precast members 400, the connection stability between the wet joint demountable-free structure and the precast members 400 is improved, thereby improving the pouring stability and quality.
[0032] Moreover, the tie rods 240 are welded to the steel bar frame 200.
[0033] By welding the tie rods 240 to the steel bar frame 200, the connection stability between the tie rods 240 and the steel bar frame 200 is improved, and further the connection stability between the wet joint demountable-free structure and the precast members 400 is improved.
[0034] The cross-section of the steel bar frame 200 is triangular, increasing the structural stability of the steel bar frame 200.
[0035] The steel bar frame 200 includes a first support 210 and a second support 220 which are arranged oppositely. The first support 210 and the second support 220 are connected by a connecting steel bar rod 300 provided at the top of the steel bar frame 200, and the steel bar rod connections are provided on the outer sides of the bottoms of the first support 210 and the second support 220.
[0036] Both the first support 210 and the second support 220 are in a wavy shape composed of a plurality of triangles, and both the first support 210 and the second support 220 are inclined gradually from the bottom to the top towards the direction of the connecting steel bar rod 300 at the top, further increasing the structural stability of the steel bar frame 200.
[0037] Connecting sections 230 are provided on both sides of the bottoms of the first support 210 and the second support 220, and the connecting sections 230 are embedded in the connecting bottom plate 100.
[0038] The connecting bottom plate 100 is a concrete plate or a UHPC plate.
[0039] The working principle of a UHPC bridge wet joint demountable-free structure provided in this embodiment:
[0040] First, the steel bar frame 200, the connecting steel bar rod 300 and the connecting bottom plate 100 are pre-installed together;
[0041] Then, the connecting bottom plate 100 is placed into the joint 410 between two precast members 400 of the bridge, and the connecting bottom plate 100 is hermetically connected to the two precast members 400.
[0042] Then, weld the steel bar frame 200 and the connecting steel bar rod 300 to the steel bars on the precast member 400;
[0043] Finally, pour concrete into the pouring area 420 formed by the mating of the connecting bottom plate 100 and the joint 410, and use the concrete to connect the two precast members 400 and the connecting bottom plate 100.
[0044] A non-detachable wet joint structure for a UHPC bridge provided in this embodiment, compared with the prior art, by arranging a connecting bottom plate 100 in the joint 410 between two precast members 400 of the bridge, the joint 410 between the connecting bottom plate 100 and the precast member 400 forms a pouring area 420, and a number of arranged steel bar frames 200 are arranged in the pouring area 420. The steel bar frames 200 are arranged on the connecting bottom plate 100, and the steel bar frames 200 are welded to the steel bars on the precast member 400. The connecting bottom plate 100 is also hermetically connected to the precast member 400 itself to achieve the sealing of the joint 410 and avoid leakage during the process of pouring concrete. During actual use, concrete is poured into the pouring area 420 to fill it up, and the connection stability between the concrete and the two precast members 400 is improved by cooperating with the steel bar frames 200 and the steel bars of the precast member 400 itself. The top concrete covers the joint 410, and both the steel bar frames 200 and the steel bars on the precast member 400 are poured into the concrete. After pouring, there is no need to disassemble the connecting bottom plate 100, which does not affect the normal use of the bridge, effectively realizing the non-removal of the wet joint mold of the bridge, reducing the construction complexity and construction difficulty, and thus improving the construction efficiency.
[0045] According to the revelation and teaching of the above specification, those skilled in the art of the present invention can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.
Claims
1. A non-dismantling structure for wet joints of UHPC bridges, characterized in that, It includes a connecting bottom plate (100), the connecting bottom plate (100) is arranged in the joint (410) between two precast members (400) of the bridge, and both sides of the connecting bottom plate (100) are used for sealing connection with the bridge precast members (400) on both sides of the joint (410). A pouring area (420) is formed between the connecting bottom plate (100) and the joint (410). A number of steel bar frames (200) are arranged in the pouring area (420). The number of steel bar frames (200) is arranged on the connecting bottom plate (100). A number of connecting steel bar rods (300) are arranged on the steel bar frames (200), and the connecting steel bar rods (300) are welded to the steel bars on the precast members (400) of the bridge.
2. The UHPC bridge wet joint non-dismantling structure according to claim 1, characterized in that The steel bar frame (200) includes a first support (210) and a second support (220). The first support (210) and the second support (220) are arranged opposite to each other. The first support (210) and the second support (220) are connected by a connecting steel bar rod (300) arranged at the top of the steel bar frame (200). The steel bar rod connections are arranged on the outer sides of the bottoms of the first support (210) and the second support (220).
3. The UHPC bridge wet joint non-dismantling structure according to claim 2, characterized in that Both the first support (210) and the second support (220) are in a wavy shape composed of a number of triangles, and both the first support (210) and the second support (220) are inclined gradually from the bottom to the top towards the direction of the connecting steel bar rod (300) at the top.
4. The UHPC bridge wet joint non-dismantling structure according to claim 3, characterized in that, Connecting sections (230) are arranged on both sides of the bottoms of the first support (210) and the second support (220), and the connecting sections (230) are embedded in the connecting bottom plate (100).
5. The UHPC bridge wet joint non-dismantling structure according to any one of claims 1-4, characterized in that A number of tie rods (240) are arranged on the steel bar frame (200), and the tie rods (240) are welded to the bridge deck steel bars (430) arranged between the two precast members (400).
6. The UHPC bridge wet joint non-removable structure according to claim 5, characterized in that The tie rods (240) are welded to the steel bar frame (200).
7. The UHPC bridge wet joint non-dismantling structure according to any one of claims 1-4, characterized in that, The cross-section of the steel bar frame (200) is triangular.
8. The UHPC bridge wet joint demounting-free structure according to any one of claims 1-4, characterized in that, The connecting bottom plate (100) is a concrete plate or a UHPC plate.