A quick positioning connecting device for converting a prefabricated T-shaped beam bridge structure system

Abstract

The application relates to a quick positioning connecting device for converting a prefabricated T-shaped beam bridge structure system, and relates to the field of a prefabricated T-shaped beam bridge temporary support structure. The device comprises a supporting part, the supporting part comprises a supporting sliding cylinder, a supporting sliding column and a supporting plate base, the supporting sliding column is vertically and slidingly inserted on the top surface of the supporting sliding cylinder, a supporting hydraulic cylinder is vertically fixed on the inner bottom surface of the supporting sliding cylinder, the top end of the supporting hydraulic cylinder is fixed on the bottom surface of the supporting sliding column, the top surface of the supporting sliding column is horizontally fixed with the supporting plate base, and the top surface of the supporting plate base is used for supporting the prefabricated T-shaped beam bridge. The horizontal limiting action of the double-side limiting part can ensure that the center of the beam body bottom surface is accurately positioned on the top surface of the supporting plate base, which is much better than the offset of the traditional temporary support, and the problem that the temporary support cannot act on the most optimal stress area of the beam body is solved, the stress of the beam body meets the design expectation, the stress balance is avoided due to eccentric support, and the stability of the prefabricated T-shaped beam bridge state conversion is improved.

Description

Technical Field

[0001] This application relates to the technical field of temporary support structures for precast T-beam bridges, and in particular to a quick positioning and connection device for converting precast T-beam bridge structural systems. Background Technology

[0002] In the field of highway and municipal bridge engineering, the precast T-beam bridge structure system, which combines the efficiency of precast construction with the structural advantages of continuous beam structures, has become the mainstream choice for small and medium-span bridges. During the conversion of the precast T-beam bridge structure system, temporary supports are key load-bearing components that ensure the stability of the beam and achieve a smooth transition of the system. Their core function is to provide reliable support for the precast T-beams during the construction phase, ensuring that the beams remain stable in position during wet joint construction, prestressing tensioning, and other processes, and avoiding construction deviations caused by displacement.

[0003] According to the technical specifications for highway bridge and culvert construction, temporary supports must have sufficient load-bearing capacity and stiffness, and their support positions must precisely correspond to the design support points on the bottom surface of the precast T-beam, typically in the middle area of ​​the beam's bottom surface, to ensure balanced stress distribution and prevent beam bending or localized stress concentration due to eccentric support. However, existing temporary support designs generally lack positioning functionality; the tops of most current mainstream temporary supports are flat contact surfaces without positioning connection components that match the bottom surface of the precast T-beam.

[0004] Regarding the aforementioned technologies, the inventors discovered that existing temporary support designs generally suffer from a lack of positioning functionality, resulting in low hoisting alignment accuracy and a tendency for the support position to shift. When hoisting precast T-beams, a crane is used to transfer the beam from the transport vehicle to a temporary support on the pier top, and then slowly lowers it to the top of the temporary support. Because there is no positioning guidance at the top of the temporary support, the beam is easily affected by factors such as wind, swaying of the hoisting ropes, and visual biases of the operators during the lowering process, causing the contact position between the bottom surface of the beam and the top of the temporary support to deviate from the designed support point. This deviation in the support position directly prevents the temporary support from acting on the beam's optimal stress-bearing area, disrupting the beam's stress balance and resulting in poor beam support stability. Utility Model Content

[0005] To overcome the common deficiency of missing positioning function in the design of existing temporary supports, the top of most current mainstream temporary supports is a flat contact surface without a positioning connection component that matches the bottom surface of the precast T-beam. This deficiency in positioning function results in low hoisting accuracy and poor stability due to easy displacement of the support position. This application provides a quick positioning connection device for the conversion of precast T-beam bridge structural systems.

[0006] The quick positioning and connection device for converting precast T-beam bridge structural systems provided in this application adopts the following technical solution: A quick positioning and connection device for converting a precast T-beam bridge structural system includes a support component. The support component includes a support slide cylinder, a support slide column, and a support plate seat. The support slide column is vertically slidably inserted on the top surface of the support slide cylinder, and a support hydraulic cylinder is vertically fixed on the inner bottom surface of the support slide cylinder. The top end of the support hydraulic cylinder is fixed to the bottom surface of the support slide column. The support plate seat is horizontally fixed on the top surface of the support slide column, and the top surface of the support plate seat is used to support the precast T-beam bridge. Limiting components can be detachably assembled on both sides of the support plate seat. The limiting components include a sliding frame, a support frame, and a wheel frame. The sliding frame is vertically arranged on one side of the support plate seat, and both ends of the top surface of the sliding frame are horizontally fixed with inserted sliders. The inserted sliders are detachably assembled on the support plate seat. The support frame is vertically slidably assembled on the sliding frame, and a wheel frame is horizontally slidably and adjustablely assembled on the top surface of the support frame. A pressure wheel is rotatably connected to the wheel frame, and the pressure wheel is used to limit and press against the precast T-beam bridge.

[0007] By adopting the above technical solution, the supporting slide cylinder is used to install and fix the supporting slide column. Simultaneously, the internal supporting hydraulic cylinder provides supporting force and adjusts the height of the supporting slide column to accommodate precast T-beam bridges of different heights. The supporting slide column can slide up and down within the supporting slide cylinder and provides a horizontal supporting surface through the supporting plate seat to support the precast T-beam bridge. The limiting components on both sides of the supporting plate seat achieve lateral and vertical limiting of the precast T-beam bridge through the adjustable sliding assembly position of the sliding frame and the supporting frame, as well as the pressure rollers on the wheel frame, ensuring its stability and accuracy during installation. The support height of the precast T-beam bridge is adjusted by moving the supporting slide column up and down through the supporting hydraulic cylinder. By sliding and adjusting the position of the supporting frame, in conjunction with the pressure rollers on the wheel frame, the precast T-beam bridge can be precisely aligned and fixed in the horizontal direction. During installation, this device can quickly and accurately position and support the precast T-beam bridge, simplifying the construction process and improving work efficiency.

[0008] Optionally, both sides of the bottom surface of the support plate are horizontally fixed with sliding frame seats, and a rod frame is vertically slidably inserted through the bottom surface of the sliding frame seat. A locking bolt is vertically rotatably connected in the middle of the rod frame, and the locking bolt thread passes through the sliding frame seat.

[0009] By adopting the above technical solution, the support plate base serves as a supporting structure, fixing the entire device and providing basic support. The sliding frame base is used to install and guide the insertion rod bracket, ensuring its vertical sliding capability. The insertion rod bracket can slide up and down within the sliding frame base and is fixed in position by locking bolts. The locking bolts pass through the sliding frame base and lock vertically to the insertion rod bracket, thereby ensuring the stability of the device.

[0010] Optionally, the insert slider is horizontally inserted into the slide frame seat, and the insert slider has a through hole and a locking screw hole, which are respectively engaged with the insert rod bracket and the locking bolt.

[0011] By adopting the above technical solution, the insert slider slides horizontally in the slide frame seat. The insertion hole and locking screw hole opened on it cooperate with the insertion rod frame and locking bolt respectively. By rotating the locking bolt, the position of the insert slider can be precisely adjusted and locked, so that the entire device can be height adjusted and locked as needed.

[0012] Optionally, an adjusting screw is vertically installed at the center of the bottom surface of the sliding frame, and the bottom end of the adjusting screw is rotatably connected to the bottom surface of the sliding frame.

[0013] By adopting the above technical solution, the adjusting screw is located at the center of the bottom surface of the sliding frame, and is allowed to rotate on the sliding frame through the rotational connection between its bottom end and the sliding frame.

[0014] Optionally, a sliding plate is horizontally fixed on the bottom surface of the support frame, and the sliding plate is vertically slidably assembled on the sliding frame.

[0015] By adopting the above technical solution, the bottom surface of the support frame is horizontally fixed by the sliding plate, while the sliding plate can slide vertically on the sliding frame.

[0016] Optionally, a lifting screw hole is provided through the vertical thread at the center of the slide plate, and the lifting screw hole is threaded through and assembled with the adjusting screw.

[0017] By adopting the above technical solution, a lifting screw hole is provided at the center of the slide plate. This screw hole is threadedly connected to the adjusting screw, so that the height of the support frame can be controlled by rotating the adjusting screw.

[0018] Optionally, multiple holes are horizontally fixed on the top surface of the support frame, and an adjusting screw is horizontally threaded through the center of the top surface of the support frame.

[0019] By adopting the above technical solution, the support frame plays the main supporting role, and multiple horizontally fixed holes on its top surface are used to guide and position the wheel frame; the adjusting screw is assembled with a horizontal thread through the middle of the top surface of the support frame, and the position of the wheel frame can be adjusted by rotating the adjusting screw, thereby adjusting the working height of the pressure wheel.

[0020] Optionally, a pressure wheel is rotatably connected to the wheel frame, and a guide rod is horizontally fixed on one end face of the wheel frame near the support frame. The guide rod is horizontally slidably inserted into the hole seat, and the wheel frame is rotatably connected to the end of the adjusting screw.

[0021] By adopting the above technical solution, the pressure rollers installed on the wheel frame are used to compress the precast T-beam bridge, while the guide rod, which is horizontally fixed at one end of the wheel frame near the supporting frame, slides horizontally through the hole seat to ensure stability when the wheel frame moves horizontally along the supporting frame. The wheel frame and the adjusting screw are rotatably connected, allowing the wheel frame to slide along the guide rod and rotate around the adjusting screw. Thus, when the adjusting screw is rotated, the wheel frame, guided by the guide rod, drives the pressure rollers to move along the top surface of the supporting frame, thereby achieving limiting support for the precast T-beam bridge.

[0022] In summary, this application includes at least one of the following beneficial technical effects: Through the coordinated positioning structure of the support member and the double-sided limiting member, precise alignment of the precast T-beam bridge is achieved. The symmetrical sides of the support plate seat of the support member slide and connect with the insertion slider of the limiting member through the sliding frame seat. Then, the locking bolt pushes the insertion rod frame through the insertion hole to form a stable double-sided limiting frame, ensuring the precise relative position of the limiting member and the support member, laying the foundation for beam positioning; based on the precast T-beam... The support width of the T-beam bridge is adjusted by rotating the adjusting screw on the top surface of the support frame, which drives the wheel frame to move horizontally. This causes the pressure rollers on the wheel frame to press tightly against the vertical end face of the outer side of the beam. The pressure rollers of the double-sided limiting components form a bidirectional clamping effect, forcibly restraining the horizontal displacement of the beam. Even if affected by wind or rope swaying, the beam cannot deviate from the center area of ​​the support plate seat. The horizontal limiting effect of the double-sided limiting components ensures that the center of the bottom surface of the beam falls precisely on the top surface of the support plate seat, which is far superior to the offset of traditional temporary supports. This completely solves the problem that temporary supports cannot act on the optimal stress area of ​​the beam, ensuring that the stress on the beam meets the design expectations, avoiding the disruption of the stress balance due to eccentric support, and improving the stability of the precast T-beam bridge during state transitions. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the embodiment of this application in an exploded state; Figure 3 This is a schematic diagram of the structure of the support member in the exploded state according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the limiting member in the disassembled state according to an embodiment of this application; Figure 5 This is a structural schematic diagram of the support frame in the disassembled state according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached drawings: 1. Support component; 11. Support slide cylinder; 12. Support hydraulic cylinder; 13. Support slide column; 14. Support plate seat; 15. Slide frame seat; 16. Insert rod bracket; 17. Locking bolt; 2. Limiting component; 21. Slide frame; 22. Insert slider; 23. Insertion hole; 24. Locking screw hole; 25. Support frame; 26. Slide groove plate; 261. Lifting screw hole; 27. Hole seat; 28. Adjusting screw; 29. ​​Wheel frame; 291. Guide rod; 292. Pressure wheel. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the accompanying drawings.

[0026] This application discloses a quick positioning and connection device for converting precast T-beam bridge structural systems. (Refer to...) Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A quick positioning and connection device for converting a precast T-beam bridge structural system includes a support member 1. The support member 1 includes a support slide cylinder 11, a support slide column 13, and a support plate seat 14. The support slide column 13 is vertically slidably inserted into the top surface of the support slide cylinder 11, and a support hydraulic cylinder 12 is vertically fixed to the bottom surface inside the support slide cylinder 11. The top end of the support hydraulic cylinder 12 is fixed to the bottom surface of the support slide column 13. The support plate seat 14 is horizontally fixed to the top surface of the support slide column 13, and the top surface of the support plate seat 14 is used to support the precast T-beam bridge. The two sides of the support plate seat 14... All can be detachably assembled with limiting components 2. The limiting components 2 include a sliding frame 21, a support frame 25, and a wheel frame 29. The sliding frame 21 is vertically arranged on one side of the support plate seat 14, and both ends of the top surface of the sliding frame 21 are horizontally fixed with insert sliders 22. The insert sliders 22 are detachably assembled on the support plate seat 14. The support frame 25 is vertically slidably assembled on the sliding frame 21, and the top surface of the support frame 25 is horizontally slidably and adjustablely assembled with a wheel frame 29. A pressure wheel 292 is rotatably connected to the wheel frame 29, and the pressure wheel 292 is used to limit and pressure the precast T-beam bridge.

[0027] By adopting the above technical solution, the supporting slide cylinder 11 is used to install and fix the supporting slide column, while the internal supporting hydraulic cylinder 12 can provide supporting force and adjust the height of the supporting slide column 13 to adapt to precast T-beam bridges of different heights. The supporting slide column 13 can slide up and down within the supporting slide cylinder 11 and provides a horizontal supporting surface through the supporting plate seat 14 to support the precast T-beam bridge. The limiting members 2 on both sides of the supporting plate seat 14 achieve lateral and vertical limiting of the precast T-beam bridge through the adjustable sliding assembly position of the sliding frame 21 and the supporting frame 25, and the pressure rollers 292 on the wheel frame 29, ensuring its stability and accuracy during installation. The support height of the precast T-beam bridge can be adjusted by adjusting the supporting hydraulic cylinder 12 to move the supporting slide column 13 up and down. By sliding and adjusting the position of the supporting frame 25, in conjunction with the pressure rollers 292 on the wheel frame 29, the precast T-beam bridge can be accurately aligned and fixed in the horizontal direction. During installation, the device can quickly and accurately position and support precast T-beam bridges, simplifying the construction process and improving work efficiency.

[0028] Reference Figure 3 The support plate 14 has horizontally fixed sliding frame seats 15 on both sides of its bottom surface. A rod holder 16 is vertically slidably inserted through the bottom surface of the sliding frame seat 15. A locking bolt 17 is vertically rotatably connected to the middle of the rod holder 16, and the locking bolt 17 is threaded through the sliding frame seat 15. The support plate 14 serves as a support structure, fixing the entire device and providing basic support. The sliding frame seat 15 is used to install and guide the rod holder 16, ensuring its vertical sliding capability. The rod holder 16 can slide up and down within the sliding frame seat 15 and is fixed in position by the locking bolt 17. The locking bolt 17 passes through the sliding frame seat 15 and locks the rod holder 16 vertically, ensuring the stability of the device. The insertion slider 22 is horizontally slidably inserted into the sliding frame seat 15, and has a through-hole 23 and a locking screw hole 24. The through-hole 23 and locking screw hole 24 on the insertion slider 22 respectively engage with the rod holder 16 and the locking bolt 17. The insertion slider 22 slides horizontally in the slide frame 15. The insertion hole 23 and locking screw hole 24 on it cooperate with the insertion rod frame 16 and locking bolt 17 respectively. By rotating the locking bolt 17, the position of the insertion slider 22 can be precisely adjusted and locked, so that the height of the entire device can be adjusted and locked as needed.

[0029] Reference Figure 5An adjusting screw 28 is vertically installed at the center of the bottom surface of the sliding frame 21, and the bottom end of the adjusting screw 28 is rotatably connected to the bottom surface of the sliding frame 21. The adjusting screw 28, located at the center of the bottom surface of the sliding frame 21, allows rotation on the sliding frame 21 through its rotatable connection to the sliding frame 21. A sliding groove plate 26 is horizontally fixed on the bottom surface of the support frame 25, and the sliding groove plate 26 is vertically slidably assembled on the sliding frame 21. The bottom surface of the support frame 25 is horizontally fixed by the sliding groove plate 26, while the sliding groove plate 26 can slide vertically on the sliding frame 21. A lifting screw hole 261 is vertically threaded through the center of the sliding groove plate 26, and the lifting screw hole 261 is threadedly assembled with the adjusting screw 28. The lifting screw hole 261 at the center of the sliding groove plate 26 is threadedly connected to the adjusting screw 28, allowing the height of the support frame 25 to be controlled by rotating the adjusting screw 28.

[0030] Reference Figure 5 The support frame 25 has multiple horizontally fixed holes 27 on its top surface, and an adjusting screw 28 is threaded through the center of the top surface of the support frame 25. The support frame 25 serves as the main support, and the multiple horizontally fixed holes 27 on its top surface are used to guide and position the wheel frame 29. The adjusting screw 28 is threaded through the center of the top surface of the support frame 25. By rotating the adjusting screw 28, the position of the wheel frame can be adjusted, thereby adjusting the working height of the pressure wheel 292. The pressure wheel 292 is rotatably connected to the wheel frame 29, and a guide rod 291 is horizontally fixed on one end of the wheel frame 29 near the support frame 25. The guide rod 291 is horizontally slidably inserted into the hole 27, and the wheel frame 29 is rotatably connected to the end of the adjusting screw 28. The pressure roller 292 mounted on the wheel frame 29 is used to press the precast T-beam bridge. The guide rod 291, which is horizontally fixed at one end of the wheel frame 29 near the support frame 25, slides horizontally through the hole seat 27 to ensure that the wheel frame 29 remains stable when moving horizontally along the support frame 25. The wheel frame 29 is rotatably connected to the end of the adjusting screw 28, so that the wheel frame 29 can slide along the guide rod 291 and rotate around the adjusting screw 28. When the adjusting screw 28 is rotated, the wheel frame 29, guided by the guide rod 291, drives the pressure roller 292 to move along the top surface of the support frame 25, thereby achieving the limiting support for the precast T-beam bridge.

[0031] The implementation principle of the quick positioning and connection device for the conversion of precast T-beam bridge structural systems in this application embodiment is as follows: First, multiple support components 1 are vertically placed on the top surface of the pier. Then, when assembling the limiting components 2 on the symmetrical end faces of the support plate seat 14, the sliding block 22 on the sliding frame 21 in the limiting component 2 is slidably inserted into the sliding frame seat 15 of the support plate seat 14. Then, the locking bolt 17 on the bottom rod bracket 16 of the sliding frame seat 15 is rotated to push the rod bracket 16 upward through the insertion hole 23 on the sliding block 22, thus completing the fixed assembly of the limiting component 2 and the support component 1. Then, according to the support width requirements of the precast T-beam bridge, the adjusting screw 28 on the top surface of the support frame 25 is rotated, and the horizontal adjusting wheel 29 presses against the outer vertical end face of the precast T-beam bridge. The limiting components 2 on both sides of the support plate seat 14 limit and support the center of the bottom surface of the precast T-beam bridge to fall on the support plate seat 14. Then, when using it, first rotate the adjusting screw 28 on the bottom surface of the sliding frame 21, vertically adjust the sliding groove plate 26 on the bottom surface of the support frame 25 to move vertically on the sliding frame 21, adjust the height of the pressure roller 292 to press and limit the height of the outer vertical end face of the precast T-beam bridge, then start the extension of the support hydraulic cylinder 12 in the support slide cylinder 11, push the support slide column 13 to slide vertically in the support slide cylinder 11, vertically adjust the height of the support plate seat 14 to support the precast T-beam bridge, and start the state transition operation of the precast T-beam bridge. Finally, after the precast T-beam bridge completes its state transition, when disassembling support component 1, rotate adjusting screw 28 to adjust slide plate 26 to slide vertically down on slide frame 21, causing wheel frame 29 to no longer support the precast T-beam bridge. Then, rotate locking bolt 17 on insert rod frame 16 to separate limit component 2 from support component 1. Start support hydraulic cylinder 12 to retract, causing support slide column 13 to slide vertically down in support slide cylinder 11, causing support plate seat 14 to no longer support the precast T-beam bridge. Remove support component 1 to complete disassembly.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick positioning and connection device for converting precast T-beam bridge structural systems, characterized in that, The system includes a support component (1), which comprises a support slide cylinder (11), a support slide column (13), and a support plate seat (14). The support slide column (13) is vertically slidably inserted into the top surface of the support slide cylinder (11), and a support hydraulic cylinder (12) is vertically fixed to the bottom surface of the inner part of the support slide cylinder (11). The top end of the support hydraulic cylinder (12) is fixed to the bottom surface of the support slide column (13). The support plate seat (14) is horizontally fixed to the top surface of the support slide column (13), and the top surface of the support plate seat (14) is used to support the precast T-beam bridge. Limiting components (2) can be detachably assembled on both sides of the support plate seat (14). The limiting component (2) includes a sliding frame (21), a support frame (25), and a wheel frame (29). The sliding frame (21) is vertically arranged on one side of the support plate seat (14), and both ends of the top surface of the sliding frame (21) are horizontally fixed with insert sliders (22). The insert sliders (22) are detachably assembled on the support plate seat (14). The support frame (25) is vertically slidably assembled on the sliding frame (21), and the wheel frame (29) is horizontally slidably assembled on the top surface of the support frame (25). A pressure wheel (292) is rotatably connected on the wheel frame (29), and the pressure wheel (292) is used to limit and press the precast T-beam bridge.

2. The quick positioning and connection device for converting precast T-beam bridge structural systems according to claim 1, characterized in that: Both sides of the bottom surface of the support plate seat (14) are horizontally fixed with sliding frame seats (15), and a rod frame (16) is vertically slidably inserted through the bottom surface of the sliding frame seat (15). A locking bolt (17) is vertically rotatably connected to the middle of the rod frame (16), and the locking bolt (17) is threaded through the sliding frame seat (15).

3. The quick positioning and connection device for converting precast T-beam bridge structural systems according to claim 2, characterized in that: The insertion slider (22) is horizontally inserted into the slide frame seat (15), and the insertion slider (22) has a through hole (23) and a locking screw hole (24). The insertion hole (23) and the locking screw hole (24) on the insertion slider (22) are respectively connected to the insertion rod frame (16) and the locking bolt (17).

4. The quick positioning and connection device for converting precast T-beam bridge structural systems according to claim 1, characterized in that: An adjusting screw (28) is vertically installed at the center of the bottom surface of the sliding frame (21), and the bottom end of the adjusting screw (28) is rotatably connected to the bottom surface of the sliding frame (21).

5. A quick positioning and connection device for converting precast T-beam bridge structural systems according to claim 4, characterized in that: A sliding plate (26) is horizontally fixed on the bottom surface of the support frame (25), and the sliding plate (26) is vertically slidably assembled on the sliding frame (21).

6. A quick positioning and connection device for converting precast T-beam bridge structural systems according to claim 5, characterized in that: The center of the slide plate (26) is provided with a vertical threaded lifting screw hole (261), and the lifting screw hole (261) is threadedly connected to the adjusting screw (28).

7. The quick positioning and connection device for converting precast T-beam bridge structural systems according to claim 1, characterized in that: The top surface of the support frame (25) is horizontally fixed with multiple hole seats (27), and an adjusting screw (28) is horizontally threaded through the middle of the top surface of the support frame (25).

8. A quick positioning and connection device for converting precast T-beam bridge structural systems according to claim 7, characterized in that: A pressure wheel (292) is rotatably connected to the wheel frame (29), and a guide rod (291) is horizontally fixed on one end face of the wheel frame (29) near the support frame (25), and the guide rod (291) is horizontally slidably inserted into the hole seat (27), and the wheel frame (29) is rotatably connected to the end of the adjusting screw (28).

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