A device for bridge T-beam wet joint safety protection and construction integration

Abstract

The utility model provides a kind of for bridge T beam wet joint safety protection and construction integration device, belong to bridge construction technical field, for solving the technical problem that bridge wet joint high-altitude opening operation construction exists falling hidden danger and low construction efficiency. Including: protective body, connecting side plate and formwork layer;Protective body is located in the upper end port part of wet joint, formwork layer is located in the bottom of wet joint, connecting side plate is located in the both sides of wet joint, connecting side plate includes the transverse plate and vertical plate of rotation connection, connecting side plate at least includes protection state and construction state;In protection state, transverse plate is fixed in the top surface of T beam of the both sides of wet joint, vertical plate is located in wet joint, vertical plate lower end hangs formwork layer;In construction state, still include the cantilever beam of being arranged on the surface of T beam, transverse plate, vertical plate and formwork layer form plane and stick to the bottom surface of the both sides of wet joint, and pull rod is arranged between cantilever beam and formwork layer. It has the technical effect of improving the safety and construction efficiency of bridge wet joint high-altitude opening operation.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to an integrated device for safety protection and construction of wet joints in bridge T-beams. Background Technology

[0002] In bridge construction, after the T-beam slabs are erected, wet joints are formed between adjacent slabs. The construction of these wet joints is a high-altitude opening operation scenario. Construction workers need to perform a series of operations such as formwork installation and concrete pouring in the wet joint area. Moreover, the area below is a vehicle and pedestrian area under the bridge, making the construction environment quite complex and placing high demands on both construction safety and efficiency.

[0003] However, this construction scenario presents numerous challenges. During high-altitude operations, tools, materials, and concrete debris are prone to falling, threatening the safety of pedestrians, vehicles, and equipment beneath the bridge. Furthermore, traditional construction methods involve cumbersome procedures during the later stages of pouring concrete, impacting efficiency, increasing costs and timelines, and hindering project progress. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes an integrated device for safety protection and construction of wet joints in bridge T-beams, which solves the technical problems of falling object hazards and low construction efficiency during high-altitude opening operations of wet joints in bridges.

[0005] The technical solution adopted in this utility model is: an integrated device for safety protection and construction of wet joints in bridge T-beams, comprising: The system comprises a protective body, connecting side plates, and a template layer. The protective body is located at the upper end of the wet joint, the template layer is located at the bottom of the wet joint, and the connecting side plates are located on both sides of the wet joint. Each connecting side plate includes a horizontal plate and a vertical plate that are rotatably connected. The connecting side plates have at least a protective state and a construction state. In the protective state, the horizontal plate is fixed to the top surface of the T-beams on both sides of the wet joint, the vertical plate is located inside the wet joint, and the lower end of the vertical plate suspends the template layer. In the construction state, the system also includes a cantilever beam on the surface of the T-beams. The horizontal plate, vertical plate, and template layer are planar and attached to the bottom surface on both sides of the wet joint. A tie rod is provided between the cantilever beam and the template layer.

[0006] Optionally, the protective body is a flexible protective net, which is laid inside the wet joint and is lower than the upper surface of the T-beam.

[0007] Optionally, the vertical plate of the connecting side plate is provided with a guide strip along the length of the wet joint, and the protective body is supported by the guide strip.

[0008] Optionally, the protective body includes a mandrel and a mesh sheet. The protective body includes at least a stored state and a working state. In the stored state, the mesh sheet is wrapped around the mandrel. In the working state, the mandrel lays the mesh sheet in the wet joint by rolling along the guide strip.

[0009] Optionally, the template layer includes a forming layer and a telescopic frame. The forming layer is attached to the bottom surface of the T-beam, and the telescopic frame is located below the forming layer and can expand and contract along the width direction of the wet joint.

[0010] Optionally, the thickness of the connecting side plate matches the thickness of the molding layer.

[0011] Optionally, on one side of the wet joint, the template layer is rotatably connected to the vertical plate of the connecting side plate, and on the other side of the wet joint, the end of the forming layer of the template layer is provided with a hook, and the vertical plate of the connecting side plate is provided with a pin along the length of the wet joint, and the hook can hook the pin.

[0012] Optionally, the forming layer is made of aluminum.

[0013] Optionally, the template layer can be spliced ​​along the length of the wet joint.

[0014] Optionally, the guide bar is a protruding structure that can be detachably connected to the surface of the vertical plate, or the guide bar is a groove structure provided on the surface of the vertical plate.

[0015] As can be seen from the above technical solution, the beneficial technical effects of this utility model are as follows: This utility model discloses an integrated safety protection and construction device for wet joints of bridge T-beams. By installing a protective body at the upper end of the wet joint, a template layer at the bottom, and connecting side plates with rotating horizontal and vertical connecting plates on both sides, it achieves flexible switching between protection and construction modes. In the protection mode, it can effectively intercept falling objects, ensuring safety under the bridge; in the construction mode, it combines with cantilever beams and tie rods to optimize the pouring process. This device fundamentally eliminates the hazard of falling objects and significantly improves construction efficiency, combining practicality and economy. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of step one of the installation process.

[0018] Figure 2 This is a schematic diagram of the protective device in its stored state.

[0019] Figure 3 This is a schematic diagram of the construction area.

[0020] Figure 4 This is a schematic diagram of step two in the installation process.

[0021] Figure 5 This is a diagram illustrating the protective state.

[0022] Figure 6 A schematic diagram showing the switch from protection to construction.

[0023] Figure 7 This is a schematic diagram of the construction status.

[0024] Reference numerals: Protective body 1, mandrel 11, mesh 12, connecting side plate 2, horizontal plate 21, vertical plate 22, guide strip 221, pin 222, pin rod 223, template layer 3, forming layer 31, hook 311, telescopic frame 32, cantilever beam 4, tie rod 5, cable 9. Detailed Implementation

[0025] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0027] An integrated safety protection and construction device for wet joints of bridge T-beams, one possible implementation is as follows (see appendix). Figures 1-7 ,in Figure 3 The application scenario is shown. The device includes: a protective body 1, connecting side plates 2, and a template layer 3. The protective body 1 is located at the upper end of the wet joint, the template layer 3 is located at the bottom of the wet joint, and the connecting side plates 2 are located on both sides of the wet joint. The connecting side plates 2 include a horizontal plate 21 and a vertical plate 22 that are rotatably connected. The connecting side plates 2 include at least a protective state and a construction state. In the protective state, such as... Figure 5 As shown, the horizontal plate 21 is fixed to the top surface of the T-beams on both sides of the wet joint, and the vertical plate 22 is located inside the wet joint. The lower end of the vertical plate 22 suspends the formwork layer 3; in the construction state, as... Figure 7 As shown, it also includes a cantilever beam 4 on the surface of the T-beam, and the horizontal plate 21, vertical plate 22 and template layer 3 connecting the side plate 2 are flat and attached to the bottom surface on both sides of the wet joint. A tie rod 5 is provided between the cantilever beam 4 and the template layer 3. The tie rod 5 provides a reaction force through the cantilever beam 4 to press the connecting side plate 2 and template layer 3 tightly to the bottom surface on both sides of the wet joint, and then the wet joint can be poured.

[0028] Further, see appendix. Figure 5 and Figure 6 The formwork layer 3 includes a forming layer 31 and an expansion joint 32. The forming layer 31 is attached to the bottom surface of the T-beam, and the expansion joint 32 is located below the forming layer 31 and can expand and contract along the width of the wet joint. The forming layer 31 is made of aluminum, with a thickness of 3mm, and its upper surface is a flat pouring surface. It can be made into standard segments of 1 meter in length. The formwork layer 3 can be spliced ​​along the length of the wet joint.

[0029] The working process of the above embodiments is roughly as follows: Protection status: See Figure 1 One side of the wet joint ( Figure 1 On the left side), the template layer 3 is rotatably connected to the lower end of the vertical plate 22 of the connecting side plate 2, that is, connected in a hinged form, on the other side of the wet joint ( Figure 1 (Right side), the molding layer 31 of the template layer 3 is provided with a hook 311 at its end, and the vertical plate 22 of the connecting side plate 2 is provided with a pin 223 along the length of the wet joint. The hook 311 can hook the pin 223. When installing this device at the wet joint, first use the cable 9 to suspend the right side of the left and right connecting side plates 2 and the right side of the template layer 3, so that the template layer 3 is tilted so that it can be lowered from the wet joint. The vertical plate 22 of the right connecting side plate 2 is lowered first, and then the left connecting side plate 2 and the template layer 3 are gradually lowered so that the hook 311 on the right side of the template layer 3 hooks the pin 223 of the left connecting side plate 2. Then adjust the height of the left and right connecting side plates 2 to such a height. Figure 4 As shown, then bend the horizontal plate 21 of the left and right connecting side plates 2 and attach it to the top surface of both sides of the wet joint and fix it in place, as shown. Figure 5 As shown. A protective layer 1 can then be laid at the wet joint opening.

[0030] Construction process: The telescopic frame 32 of the formwork layer 3 first expands and contracts, making its width exceed the width of the forming layer 31. Then, the protective body 1 is removed, and the fixing of the horizontal plate 21 of the connecting side plate 2 to the top surfaces of both sides of the wet joint is cancelled. Next, the height of the connecting side plate 2 and the formwork layer 3 is lowered, so that the highest point of the connecting side plate 2 is lower than the bottom surface of the wet joint, and the horizontal plate 21 and vertical plate 22 of the connecting side plate 2 are flipped outwards to be flush with the formwork layer 3. Figure 6As shown, at this time, the horizontal plate 21 and the vertical plate 22 are supported by the telescopic frame 32. To ensure flatness, the thickness of the connecting side plate 2 matches that of the forming layer 31. Then, the height of the connecting side plate 2 and the template layer 3 is increased so that the top surfaces of the template layer 3 and the connecting side plate 2 are attached to the bottom surfaces of both sides of the wet joint. At the same time, a cantilever beam 4 is set at the top of the wet joint, and the bottom end of the tie rod 5 extends into the template layer 3. The template layer 3 and the tie rod 5 are connected as one unit through the reserved threaded holes. The upper end of the tie rod 5 passes through the hole on the cantilever beam 4 and is then tightened with bolts to pull the template layer 3 and the connecting side plate 2 to the bottom of the wet joint. The bottom plate is cleaned, and then the wet joint can be poured. To facilitate the subsequent removal of the connecting side plate 2 and the template layer 3, a release agent can be sprayed on the surface of the connecting side plate 2 and the template layer 3, and the tie rod 5 is fitted with an isolation sleeve.

[0031] The integrated device described above has dual functions of protection and construction pouring, effectively improving the safety and efficiency of construction.

[0032] In the protected state, the protective body 1 is located at the upper end of the wet joint, which can intercept small falling objects such as tools, materials, and concrete debris that may fall during the operation, avoiding threats to pedestrians, vehicles, and equipment under the bridge. The horizontal plate 21 connecting the side plate 2 is fixed to the top surface of the T-beam, and the vertical plate 22 is located inside the wet joint and its lower end suspends the formwork layer 3. This provides stable support for the formwork layer 3, forming a second layer of protection that can intercept heavy falling objects, and further enhances the overall structural stability, ensuring the safety of the high-altitude opening operation environment in all aspects.

[0033] Once in construction mode, the device quickly transforms into a highly efficient construction auxiliary equipment. The telescopic frame 32 of the formwork layer 3 can extend and retract along the width of the wet joint. First, its width is adjusted to exceed that of the forming layer 31 to prepare for receiving the connecting side plate 2. After removing the protective body 1 and adjusting the state of the connecting side plate 2, the horizontal plate 21 and the vertical plate 22 are flush with the formwork layer 3 and attached to the bottom surfaces of both sides of the wet joint. At this time, a cantilever beam 4 is set on the surface of the T-beam. The bottom end of the tie rod 5 is connected to the formwork layer 3, and the upper end passes through the cantilever beam 4 and is fastened with bolts, providing reaction force for the formwork layer 3 and the connecting side plate 2, pressing them tightly against the bottom surfaces of both sides of the wet joint to form a stable pouring surface. This provides a wider stress surface, better support, and prevents grout leakage, ensuring the quality of concrete pouring.

[0034] Furthermore, the design of this device fully considers the ease of construction and subsequent dismantling. A release agent is sprayed onto the surfaces of the connecting side plate 2 and the template layer 3, and the tie rod 5 is fitted with an isolation sleeve, enabling the device to be quickly and without damage after construction, thus improving construction efficiency and reducing construction costs.

[0035] Overall, this integrated device achieves seamless switching between protective and construction pouring functions through innovative structural design. In protective mode, it serves as a robust safety barrier; in construction mode, it becomes an efficient construction aid. This dual-purpose feature not only simplifies the construction process and reduces investment in construction equipment, but also significantly improves the safety and efficiency of high-altitude opening operations for wet joints in bridges, providing a practical, efficient, and economical solution for the bridge construction field.

[0036] In one possible implementation, see Appendix Figure 2 Protective element 1 is a flexible protective net, laid inside the wet joint and lower than the upper surface of the T-beam, thus able to catch debris from both sides of the top surface of the wet joint. Protective element 1 can have a mesh density of no more than 1 cm². 2 High-strength flexible netting is used to catch small falling objects such as concrete debris and small screws. For details, please refer to... Figure 4 The vertical plate 22 connecting the side plate 2 is provided with a guide strip 221 along the length of the wet joint, and the protective body 1 is supported by the guide strip 221. In some embodiments, the protective body 1 includes a mandrel 11 and a mesh 12. The protective body 1 includes at least a stored state and an operating state. In the stored state, the mesh 12 is wrapped around the mandrel 11. In the operating state, the mandrel 11 rolls the mesh 12 into the wet joint by rolling along the guide strip 221. The guide strip 221 is a detachable protruding structure connected to the surface of the vertical plate 22 (the surface of the vertical plate 22 needs to be flat to adhere to the bottom of the bridge deck in the construction state), or the guide strip 221 is a groove structure provided on the surface of the vertical plate 22.

[0037] In addition, the structure is equipped with reserved installation interfaces and small LED lights to provide illumination for construction at night or in low-light conditions at wet joints. Conspicuous yellow and black warning stripes are sprayed on the top horizontal surface of the top layer (retaining layer), and reflective warning signs such as "Under Construction" are placed to alert bridge construction workers and vehicles. Conspicuous red and white or yellow and black warning stripes are sprayed on the bottom horizontal surface of the retractable standard segment retaining layer of the bottom layer (recyclable layer), and reflective warning signs such as "Under Construction" are placed to alert personnel and vehicles below.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An integrated device for safety protection and construction of wet joints in bridge T-beams, characterized in that, include: The structure comprises a protective body (1), a connecting side plate (2), and a template layer (3); the protective body (1) is located at the upper end of the wet joint, the template layer (3) is located at the bottom of the wet joint, the connecting side plate (2) is located on both sides of the wet joint, the connecting side plate (2) includes a horizontal plate (21) and a vertical plate (22) that are rotatably connected, and the connecting side plate (2) includes at least a protective state and a construction state; in the protective state, the horizontal plate (21) is fixed to the top surface of the T-beams on both sides of the wet joint, the vertical plate (22) is located inside the wet joint, and the lower end of the vertical plate (22) suspends the template layer (3); in the construction state, it also includes a cantilever beam (4) set on the surface of the T-beam, the horizontal plate (21), the vertical plate (22) and the template layer (3) are planar and attached to the bottom surface on both sides of the wet joint, and a tie rod (5) is provided between the cantilever beam (4) and the template layer (3).

2. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 1, characterized in that: The protective body (1) is a flexible protective net, which is laid inside the wet joint and is lower than the upper surface of the T beam.

3. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 1, characterized in that: The vertical plate (22) of the connecting side plate (2) is provided with a guide strip (221) along the length of the wet joint, and the protective body (1) is supported by the guide strip (221).

4. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 2, characterized in that: The protective body (1) includes a mandrel (11) and a mesh (12). The protective body (1) includes at least a storage state and a working state. In the storage state, the mesh (12) is wrapped around the mandrel (11). In the working state, the mandrel (11) rolls along the guide strip (221) to lay the mesh (12) in the wet joint.

5. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 1, characterized in that: The template layer (3) includes a forming layer (31) and a telescopic frame (32). The forming layer (31) is attached to the bottom surface of the T-beam, and the telescopic frame (32) is located below the forming layer (31) and can expand and contract along the width direction of the wet joint.

6. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 5, characterized in that: The thickness of the connecting side plate (2) matches that of the molding layer (31).

7. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 5, characterized in that: On one side of the wet joint, the template layer (3) is rotatably connected to the vertical plate (22) of the connecting side plate (2). On the other side of the wet joint, the end of the forming layer (31) of the template layer (3) is provided with a hook (311), and the vertical plate (22) of the connecting side plate (2) is provided with a pin (223) along the length direction of the wet joint. The hook (311) can hook the pin (223).

8. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 5, characterized in that: The forming layer (31) is made of aluminum.

9. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 1, characterized in that: The template layer (3) can be spliced ​​along the length of the wet joint.

10. The integrated device for safety protection and construction of wet joints in bridge T-beams as described in claim 3, characterized in that: The guide bar (221) is a protruding structure that can be detachably connected to the surface of the vertical plate (22), or the guide bar (221) is a groove structure provided on the surface of the vertical plate (22).

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