Large-span tied-arch bridge construction tied-arch support

Abstract

The utility model discloses a tied -arch support for large -span tied -arch bridge construction relates to tied -arch bridge construction technical field, including four symmetrical arrangement's support column, one support crossbeam is equipped on the support column and slides, four places are equipped on the support crossbeam and symmetrically and are equipped with the guide seat of the support column, the two ends of support crossbeam symmetrically are equipped with two places and are used for the adjusting seat of support tied -arch segment. The utility model discloses a tied -arch support that is composed of support column, support crossbeam, guide seat and adjusting seat, when using, through tower crane or other hoisting equipment drive support crossbeam moves up and down along the support column, changes the support height, realizes the quick positioning and linear adjustment of tied -arch segment through adjusting seat, effectively solved the high difficulty of existing support construction, the long construction period, and there is the problem of big construction safety and quality risk.

Description

Technical Field

[0001] This utility model relates to the field of tied-arch bridge construction technology, specifically a tied-arch support for the construction of a large-span tied-arch bridge. Background Technology

[0002] Tied arch bridges are a type of bridge that combines the advantages of both arches and beams. They combine the two basic structural forms of arches and beams, possessing the large span capacity of arch bridges and the strong adaptability of beam bridges to foundations. They are widely used in situations where the bridge span is large, the clearance requirements under the bridge are high, and the geological conditions of the piers and abutments are unfavorable.

[0003] Tie-arch continuous beam bridges mainly consist of piers at both ends, tie beams on both sides, arch ribs, hangers, and bridge deck structure. They are typically constructed using the full-span scaffolding method, with the beams poured first and the arches later. This involves erecting scaffolding for the tie beams at the bridge site after the main span foundation and pier construction, then pouring the tie beam concrete. Next, scaffolding is erected on the tie beams, the arch rib steel pipes are installed on the scaffolding, and concrete is poured. Finally, the scaffolding is removed, and hangers are installed between the arch ribs and tie beams. The advantages of this scaffolding method are that it does not require large hoisting equipment, and the main load-bearing structures such as the tie beams and arch ribs maintain good integrity. The disadvantages are the need for extensive scaffolding, the difficulty of high-altitude formwork assembly, the long construction period, and significant construction safety and quality risks. Especially for long-span continuous bridges, the structural alignment during tie beam and arch rib assembly and concrete pouring is difficult to control, potentially affecting concrete forming and the overall quality of the bridge.

[0004] Based on this, a tie-arch support for the construction of long-span tie-arch bridges is provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this utility model is to provide a tied arch support for the construction of a long-span tied arch bridge, so as to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The tie-arch support for the construction of a long-span tied-arch bridge includes four symmetrically arranged support columns. A support beam is slidably mounted on each support column. Four guide seats are symmetrically mounted on the support beam and fitted onto the support columns. Two adjustment seats for supporting the tied-arch segments are symmetrically mounted at both ends of the support beam.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative: two guide rails are symmetrically arranged on the support column, and a vertical support rail is arranged on the side of the support column away from the support beam, and multiple positioning holes are evenly distributed on the vertical support rail.

[0008] In one alternative: the support beam has two symmetrical first mounting slots at both ends for installing the adjustment seat, the bottom of the first mounting slot has a guide slot, and a second mounting slot is provided on one side of the first mounting slot.

[0009] In one alternative: the guide seat includes two L-shaped seats symmetrically fixed on the support beam, each L-shaped seat is provided with an adaptive guide wheel, and one end of the L-shaped seat is provided with a locking component.

[0010] In one alternative: the adaptive guide wheel is rotatably mounted on the mounting base, one end of the mounting base is provided with a fixing post, the fixing post is slidably mounted on the L-shaped base, and a spring is sleeved on the fixing post.

[0011] In one alternative: the locking assembly includes a cylinder mounted on an L-shaped seat, the cylinder output end is provided with a pin, and the L-shaped seat is provided with a locking hole on the side corresponding to the pin.

[0012] In one alternative: the adjusting seat includes a sliding seat slidably installed in a first mounting groove, a support for installing a tie rod arch segment is rotatably mounted on the sliding seat, two hydraulic telescopic rods are symmetrically arranged below the support, the fixed end of the hydraulic telescopic rod is hinged to the sliding seat, the output end of the hydraulic telescopic rod is hinged to the support, and a transverse movement assembly is provided on one side of the sliding seat.

[0013] In one alternative embodiment: the lateral movement assembly includes a guide block disposed at the bottom end of the sliding seat and an electric telescopic rod installed in a second mounting groove, the guide block being slidably disposed in the guide groove, and the output end of the electric telescopic rod being fixedly connected to the sliding seat.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model consists of a tie-arch support frame composed of a support column, a support beam, a guide seat, and an adjustment seat. In use, the support beam is moved up and down along the support column by a tower crane or other lifting equipment to change the support height. The adjustment seat enables rapid positioning and alignment adjustment of the tie-arch segments, effectively solving the problems of high construction difficulty, long construction period, and significant construction safety and quality risks associated with existing supports. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the support column in this utility model.

[0017] Figure 3 This is a schematic diagram of the supporting beam in this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the adjusting seat in this utility model.

[0019] Figure reference numerals: 100, support column; 101, guide rail; 102, vertical rail; 103, positioning hole; 200, support beam; 201, first mounting slot; 202, guide slot; 203, second mounting slot; 300, guide seat; 301, L-shaped seat; 302, adaptive guide wheel; 303, mounting seat; 304, fixed column; 305, spring; 306, cylinder; 307, pin; 308, locking hole; 400, adjusting seat; 401, sliding seat; 402, support; 403, hydraulic telescopic rod; 404, guide block; 405, electric telescopic rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] In one embodiment, such as Figure 1 As shown, the tie-arch support for the construction of a long-span tied-arch bridge includes four symmetrically arranged support columns 100. A support beam 200 is slidably mounted on the support column 100. Four guide seats 300 are symmetrically mounted on the support beam 200 and fitted onto the support column 100. Two adjustment seats 400 for supporting the tied-arch segments are symmetrically mounted at both ends of the support beam 200. In use, the support beam 200 is moved up and down along the support column 100 by a tower crane or other lifting equipment to change the support height. The tie-arch segments can be quickly positioned and their alignment adjusted by adjusting the adjustment seats 400.

[0022] In one embodiment, such as Figure 2 As shown, two guide rails 101 are symmetrically arranged on the support column 100, and a support vertical rail 102 is arranged on the side of the support column 100 away from the support beam 200. Multiple positioning holes 103 are evenly distributed on the support vertical rail 102. The guide rail 101 is used to cooperate with the guide seat 300 to ensure the smoothness of the support beam 200 when it moves up and down along the support column 100. The support vertical rail 102 is used to support the support beam 200.

[0023] In one embodiment, such as Figure 3 As shown, the support beam 200 has two symmetrical first mounting slots 201 at both ends for installing the adjustment seat 400. The bottom of the first mounting slot 201 is provided with a guide slot 202, and a second mounting slot 203 is provided on one side of the first mounting slot 201. In use, the adjustment seat 400 can be used to quickly position and linearly adjust the tie rod arch segment.

[0024] In one embodiment, such as Figure 3As shown, the guide seat 300 includes two L-shaped seats 301 symmetrically fixed to the support beam 200. Each L-shaped seat 301 has an adaptive guide wheel 302. One end of each L-shaped seat 301 has a locking assembly. The adaptive guide wheel 302 is rotatably mounted on a mounting seat 303. One end of the mounting seat 303 has a fixing post 304, which is slidably mounted on the L-shaped seat 301. A spring 305 is sleeved on the fixing post 304. The locking assembly includes a cylinder 306 mounted on the L-shaped seat 301. The output end of the cylinder 306 has a pin 307. The L-shaped seat 301 has a locking hole 308 on the side corresponding to the pin 307. In use, the support beam 200 is moved up and down along the support column 100 by a tower crane or other lifting equipment. When the support beam 200 moves, the adaptive guide wheel 302 and the guide rail 101 cooperate to make the support beam 200 move more smoothly and avoid jamming. When the support beam 200 moves to the specified height, the cylinder 306 is activated to make the pin 307 pass through the positioning hole 103 and lock into the locking hole 308 to achieve fixed support for the support beam 200.

[0025] In one embodiment, such as Figure 4 As shown, the adjusting seat 400 includes a sliding seat 401 slidably installed in the first mounting groove 201. A support 402 for installing the tie rod arch segment is rotatably mounted on the sliding seat 401. Two hydraulic telescopic rods 403 are symmetrically arranged below the support 402. The fixed end of the hydraulic telescopic rod 403 is hinged to the sliding seat 401, and the output end of the hydraulic telescopic rod 403 is hinged to the support 402. A transverse moving assembly is provided on one side of the sliding seat 401. The transverse moving assembly includes a guide block 404 disposed at the bottom end of the sliding seat 401 and a guide block 404 mounted on the first mounting groove 201. The electric telescopic rod 405 is installed in the second mounting groove 203, and the guide block 404 is slidably set in the guide groove 202. The output end of the electric telescopic rod 405 is fixedly connected to the sliding seat 401. In use, the tie rod arch segment is supported on the support 402. By controlling the extension and retraction of the electric telescopic rod 405, the sliding seat 401 is driven to move laterally along the first mounting groove 201. By controlling the extension and retraction of the hydraulic telescopic rod 403, the support 402 is driven to rotate vertically, thereby realizing the rapid positioning and alignment adjustment of the tie rod arch segment.

[0026] The above embodiments disclose a tie-arch support for the construction of a long-span tie-arch bridge. In use, a tower crane or other lifting equipment drives the support beam 200 to move up and down along the support column 100. When the support beam 200 moves to the specified height, the cylinder 306 is activated, causing the pin 307 to pass through the positioning hole 103 and engage in the locking hole 308, thereby achieving fixed support for the support beam 200. Then, the tie-arch segment is supported on the bracket 402. By controlling the extension and retraction of the electric telescopic rod 405, the sliding seat 401 is driven to move laterally along the first mounting groove 201. By controlling the extension and retraction of the hydraulic telescopic rod 403, the bracket 402 is driven to adjust the pitch angle, thereby achieving rapid positioning and alignment adjustment of the tie-arch segment.

[0027] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tied arch support for the construction of a long-span tied arch bridge, characterized in that, It includes four symmetrically arranged support columns (100), a support beam (200) is slidably provided on the support column (100), four guide seats (300) are symmetrically provided on the support beam (200) and two adjustment seats (400) are symmetrically provided at both ends of the support beam (200) for supporting the tie rod arch segment.

2. The tied arch support for the construction of a long-span tied arch bridge according to claim 1, characterized in that, Two guide rails (101) are symmetrically arranged on the support column (100), and a support vertical rail (102) is arranged on the side of the support column (100) away from the support beam (200). Multiple positioning holes (103) are evenly distributed on the support vertical rail (102).

3. The tied arch support for the construction of a long-span tied arch bridge according to claim 1, characterized in that, The support beam (200) has two symmetrical first mounting grooves (201) for installing the adjustment seat (400) at both ends. The bottom of the first mounting groove (201) is provided with a guide groove (202), and a second mounting groove (203) is provided on one side of the first mounting groove (201).

4. The tied arch support for the construction of a long-span tied arch bridge according to claim 1, characterized in that, The guide seat (300) includes two L-shaped seats (301) symmetrically fixed on the support beam (200). The L-shaped seats (301) are provided with adaptive guide wheels (302), and one end of the L-shaped seats (301) is provided with a locking component.

5. The tied arch support for the construction of a long-span tied arch bridge according to claim 4, characterized in that, The adaptive guide wheel (302) is rotatably mounted on the mounting base (303). One end of the mounting base (303) is provided with a fixing post (304). The fixing post (304) is slidably mounted on the L-shaped seat (301). A spring (305) is sleeved on the fixing post (304).

6. The tied arch support for the construction of a long-span tied arch bridge according to claim 4, characterized in that, The locking assembly includes a cylinder (306) mounted on an L-shaped seat (301), the output end of the cylinder (306) is provided with a pin (307), and the L-shaped seat (301) is provided with a locking hole (308) on the side corresponding to the pin (307).

7. The tied arch support for the construction of a long-span tied arch bridge according to claim 1, characterized in that, The adjusting seat (400) includes a sliding seat (401) slidably installed in the first mounting groove (201). A support (402) for installing the tie rod arch segment is rotatably installed on the sliding seat (401). Two hydraulic telescopic rods (403) are symmetrically arranged below the support (402). The fixed end of the hydraulic telescopic rod (403) is hinged to the sliding seat (401), and the output end of the hydraulic telescopic rod (403) is hinged to the support (402). A transverse component is provided on one side of the sliding seat (401).

8. The tied arch support for the construction of a long-span tied arch bridge according to claim 7, characterized in that, The lateral movement assembly includes a guide block (404) disposed at the bottom of the sliding seat (401) and an electric telescopic rod (405) installed in the second mounting groove (203). The guide block (404) is slidably disposed in the guide groove (202), and the output end of the electric telescopic rod (405) is fixedly connected to the sliding seat (401).

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