Bridge structure sliding track

Abstract

The utility model belongs to bridge construction technical field discloses a bridge span structure slip track. The upper end surface of multiple sectional tracks keeps flush, so that the bridge span structure can be smoothly slipped from the slope bottom side to the slope top side under the jacking of the jacking device, and the jacking force required by the bridge span structure due to the slope is avoided or the bridge span structure is overturned. After the bridge span structure on the slope top side slips to the specified position, the jacking device jacks up the bridge span structure, the construction personnel removes one sectional track on the slope bottom side, and moves the remaining sectional tracks integrally to the slope bottom side. The height of the sectional track on the slope top side is less than the height of the sectional track on the slope bottom side, one sectional track on the slope bottom side is removed, the remaining sectional tracks are moved integrally to the slope bottom side, which is equivalent to reducing the height between the upper end surface of the sectional track and the upper surface of the bent cap, and further reduces the operation difficulty of the bridge span structure lowering, and improves the installation precision of the bridge span structure.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a sliding track for bridge span structures. Background Technology

[0002] To ensure drainage performance and traffic safety during bridge design, a unidirectional lateral slope is typically incorporated into the cap beam. This ensures that the bridge span structure installed on the cap beam shares the same lateral slope, allowing rainwater or snowmelt to drain quickly to the drainage pipes on the side of the bridge, thus reducing the risk of vehicle skidding. Furthermore, an appropriate lateral slope helps guide the driver's line of sight, improving driving safety. To accommodate the lateral slope of the cap beam, ensure stability and precision during bridge span installation, and overcome limitations of hoisting machinery, the cap beam is usually installed using a sliding installation method.

[0003] In existing technologies for sliding bridge span installation, traditional sliding tracks are typically horizontally installed, which cannot adapt to changes in the lateral slope of the cap beam. When the bridge span is slid to its designed position for lowering, the bridge span is suspended too high on the top of the slope, easily causing misalignment between the bridge span and the supports on the cap beam. This necessitates the use of additional jacks or mechanical equipment for assisted lowering, making the operation complex. If the sliding track is set according to the lateral slope of the cap beam, the jacking force required to drive the bridge span sliding is large, and the bridge span is prone to overturning. Utility Model Content

[0004] The purpose of this utility model is to provide a bridge span structure sliding track to solve the problem that traditional sliding tracks cannot adapt to changes in the lateral slope of the cap beam, which leads to complicated bridge span structure installation operations.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A bridge span sliding track, used for auxiliary installation of bridge span structures on cap beams with a unidirectional lateral slope, comprising:

[0007] Multiple segmented tracks are sequentially arranged on the upper surface of the cap beam along the transverse slope direction. Adjacent segments abut against each other. The upper end face of each segmented track is horizontal and the upper end faces of the multiple segments are flush. The lower end face of each segmented track is inclined and the inclination angle of the lower end face is consistent with the transverse slope of the cap beam.

[0008] Anchors are used to secure the segmented track to the cover beam.

[0009] Optionally, among the multiple segmented tracks arranged sequentially along the transverse slope direction of the cap beam, except for one segmented track located on the top side of the slope, the lower end face of the other multiple segmented tracks is connected to a support member, and the height of the support member connected to the segmented track near the top side of the slope is less than the height of the support member connected to the segmented track near the bottom side of the slope.

[0010] Optionally, the support includes a plurality of pads, which are spaced apart along the length of the segmented track, and the pads connected to the same segmented track have the same height.

[0011] Optionally, the pad is an I-beam web.

[0012] Optionally, each of the segmented tracks is connected to an angle steel, and the anchors fix the segmented tracks to the cap beam through the angle steel.

[0013] Optionally, the anchor is a fixed climbing cone.

[0014] Optionally, both the segmented track located at the top of the slope and the segmented track located at the bottom of the slope are provided with limiting members, which can respectively abut against both sides of the cap beam along the transverse slope extension direction.

[0015] Optionally, the bridge span structure sliding track further includes a slide block, which is slidably connected to the upper end face of the segmented track.

[0016] Optionally, the upper surface of each of the segmented tracks is coated with a lubricating coating.

[0017] Optionally, each of the segmented tracks is enclosed by a steel plate, and the segmented track has a rectangular closed cross section.

[0018] The beneficial effects of this utility model are:

[0019] This invention provides a bridge span structure sliding track. During bridge span structure installation, sliding tracks are installed on both adjacent cap beams, and each segment of track is fixed to the upper surface of the cap beam using anchors. This prevents the segmented tracks from shifting during bridge span structure sliding, thus avoiding safety accidents. The bridge span structure is typically hoisted onto the upper surface of the segmented tracks by hoisting machinery and then slides from the bottom to the top of the slope of the cap beam. The upper surfaces of multiple segmented tracks remain flush, allowing the bridge span structure to smoothly slide from the bottom to the top of the slope of the cap beam under the jacking of the jacking device. This avoids increased jacking force required for the bridge span structure due to slope or overturning of the bridge span structure on the sloping sliding track. The lower surface of the segmented track fits snugly against the upper surface of the cap beam, eliminating the need for additional padding blocks and reducing construction complexity. The length of the upper end face of the segmented track is usually equal to the width of the bridge span structure. After the bridge span structure on the top side of the slope slides to the designated position, the jacking device lifts the bridge span structure. Construction workers then remove one segmented track located on the bottom side of the slope, lower the bridge span structure onto the support pad on the upper surface of the cap beam, and move the remaining segmented tracks as a whole towards the bottom side of the slope. This process is repeated until the entire bridge span structure is installed. The overall height of the segmented tracks on the top side of the slope is less than the overall height of the segmented tracks on the bottom side of the slope. Removing one segmented track on the bottom side of the slope and moving the remaining segmented tracks as a whole towards the bottom side of the slope effectively reduces the height between the upper end face of the segmented track and the upper surface of the cap beam, thus reducing the height of the bridge span structure's sliding track. This reduces the difficulty of lowering the bridge span structure and improves the installation accuracy of the bridge span structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the bridge span sliding track according to an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of the bridge span structure sliding track according to an embodiment of the present invention;

[0022] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle;

[0023] Figure 4 This is a schematic diagram of the segmented track structure described in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the working process of the bridge span structure sliding track according to an embodiment of the present invention.

[0025] In the picture:

[0026] 100. Cap beam; 200. Bridge span structure; 300. Bearing pad; 1. Segmented track; 11. Upper end face; 12. Lower end face; 13. Support component; 131. Pad; 14. Limiting component; 2. Anchor; 3. Angle steel; 4. Slide seat. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1-5As shown, this utility model provides a bridge span structure sliding track for auxiliary installation of a bridge span structure 200 on a cap beam 100 with a unidirectional transverse slope. The bridge span structure 200 can be a steel beam, a precast concrete beam, or a composite beam. The bridge span structure sliding track includes multiple segmented tracks 1 and anchors 2. The multiple segmented tracks 1 are sequentially arranged on the upper surface of the cap beam 100 along the transverse slope direction, with adjacent segmented tracks 1 abutting against each other. The upper end face 11 of the segmented tracks 1 is a horizontal plane, and the upper end faces 11 of the multiple segmented tracks 1 are flush. The lower end face 12 of the segmented tracks 1 is an inclined plane, and the inclination angle of the lower end face 12 is consistent with the transverse slope of the cap beam 100, that is, the lower end face 12 of the segmented track 1 is in contact with the upper surface of the cap beam 100. The anchors 2 are used to fix the segmented tracks 1 to the cap beam 100.

[0032] During the installation of the bridge span structure 200, sliding tracks are installed on both adjacent cap beams 100, and each segment track 1 is fixed to the upper surface of the cap beam 100 using anchors 2 to prevent the segment track 1 from shifting during the sliding of the bridge span structure 200 and causing a safety accident. The bridge span structure 200 is usually hoisted onto the upper end face 11 of the segment track 1 by hoisting machinery and slides from the bottom side to the top side of the slope of the cap beam 100. The upper end faces 11 of the multiple segment tracks 1 are kept flush, so that the bridge span structure 200 can smoothly slide from the bottom side to the top side of the slope of the cap beam 100 under the jacking of the jacking device, avoiding the increase in the jacking force required for the bridge span structure 200 due to the slope or the overturning of the bridge span structure 200 on the sloping sliding track.

[0033] The lower end face 12 of the segmented track 1 fits against the upper surface of the cap beam 100, eliminating the need for additional wedge-shaped pads and reducing construction complexity. The length of the upper end face 11 of the segmented track 1 is usually equal to the width of the bridge span structure 200. After the bridge span structure 200 on the top side of the slope slides to the designated position, the jacking device lifts the bridge span structure 200. Construction workers then remove one segmented track 1 located on the bottom side of the slope, lower the bridge span structure 200 onto the support pad 300 on the upper surface of the cap beam 100, and move the remaining segmented track 1 as a whole towards the bottom side of the slope. The above steps are repeated until the entire bridge span structure 200 is installed.

[0034] Depend on Figure 1 and Figure 2 It can be seen that the overall height of the segmented track 1 on the top side of the slope is less than that on the bottom side of the slope. By removing one segmented track 1 located on the bottom side of the slope and moving the remaining segmented tracks 1 to the bottom side of the slope, it is equivalent to reducing the height between the upper end face 11 of the segmented track 1 and the upper surface of the cap beam 100, that is, reducing the height of the bridge span structure sliding track, thereby reducing the difficulty of lowering the bridge span structure 200 and improving the installation accuracy of the bridge span structure 200.

[0035] Specifically, such as Figure 1 and Figure 4 As shown, among the multiple segmented tracks 1 arranged sequentially along the transverse slope direction of the cap beam 100, except for the segmented track 1 located on the slope crest side, the lower end faces 12 of the other segmented tracks 1 are all connected to support members 13. The height of the support member 13 connected to the segmented track 1 near the slope crest side is less than the height of the support member 13 connected to the segmented track 1 near the slope crest side. The lower end faces 12 of the segmented tracks 1, through the connection of support members 13, compensate for the height difference caused by the transverse slope of the cap beam 100, ensuring that the upper end faces 11 of all segmented tracks 1 remain flush.

[0036] Furthermore, such as Figure 4 As shown, the support member 13 includes multiple pads 131, which are spaced apart along the length of the segmented track 1. The pads 131 connected to the same segmented track 1 have the same height. The spaced pads 131 can provide continuous support for the segmented track 1, preventing the segmented track 1 from deforming under stress. Moreover, the height of the pads 131 can be customized to adapt to different slope requirements.

[0037] Optionally, the pad 131 is an I-beam web. I-beam webs have strong bending resistance and provide stable support. At the same time, the steel plate is low in cost and can be reused, which can effectively control construction costs.

[0038] In one embodiment, such as Figure 2 and Figure 3 As shown, each of the segmented tracks 1 is connected to an angle steel 3 on its side, and the anchor 2 fixes the segmented track 1 to the cover beam 100 through the angle steel 3. The angle steel 3 serves as an intermediate connecting member, which simplifies the process of aligning the anchor 2 with the segmented track 1, while enhancing the shear resistance of the anchor point and effectively preventing the segmented track 1 from shifting.

[0039] Optionally, such as Figure 3 As shown, the anchor 2 is a fixed climbing cone. The fixed climbing cone can provide reliable anchoring force for the segmented track 1, resist the friction force during the sliding process of the bridge span structure 200, and facilitate the later removal or adjustment of the segmented track 1, reducing damage to the cap beam 100.

[0040] Furthermore, such as Figure 1 As shown, both the segmented track 1 located at the top of the slope and the segmented track 1 located at the bottom of the slope are equipped with limiting members 14. The limiting members 14 can respectively abut against both sides of the cap beam 100 along the transverse slope extension direction. By setting the limiting members 14, the overall movement of the bridge span structure sliding track is further restricted, preventing the bridge span structure sliding track from detaching from the cap beam 100 in extreme cases.

[0041] Optionally, such as Figure 3As shown, the bridge span structure sliding track also includes a slide block 4, which is slidably connected to the upper end face 11 of the segmented track 1. The bridge span structure 200 is disposed on the slide block 4, thereby reducing the frictional resistance between the bridge span structure 200 and the upper end face 11 of the segmented track 1 and improving the sliding efficiency.

[0042] Furthermore, the upper end face 11 of each segment track 1 is coated with a lubricating coating, which reduces the sliding resistance of the segment track 1 and extends the service life of the segment track 1.

[0043] Optionally, each segment of track 1 is enclosed by steel plates, and each segment of track 1 has a rectangular closed cross section. The rectangular closed cross section has strong torsional resistance and can withstand complex loads, while the hollow structure reduces the weight of the segment of track 1, making it easier for construction personnel to assemble and disassemble.

[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A bridge structure sliding track for assisting installation of a bridge structure (200) on a bent cap (100) having a unidirectional lateral slope, characterized in that, include: Multiple segmented tracks (1) are arranged sequentially on the upper surface of the cap beam (100) along the transverse slope direction. Two adjacent segmented tracks (1) abut against each other. The upper end face (11) of the segmented track (1) is a horizontal plane. The upper end faces (11) of the multiple segmented tracks (1) are flush. The lower end face (12) of the segmented track (1) is an inclined plane, and the inclination angle of the lower end face (12) is consistent with the transverse slope of the cap beam (100). Anchor (2) for fixing the segmented track (1) to the cap beam (100).

2. Bridge structure sliding track according to claim 1, characterized in that Among the multiple segmented tracks (1) arranged sequentially along the transverse slope direction of the cap beam (100), except for one segmented track (1) located on the top side of the slope, the lower end face (12) of the other multiple segmented tracks (1) is connected to a support member (13). The height of the support member (13) connected to the segmented track (1) near the top side of the slope is less than the height of the support member (13) connected to the segmented track (1) near the bottom side of the slope.

3. Bridge structure sliding track according to claim 2, characterized in that The support member (13) includes a plurality of pads (131), which are spaced apart along the length of the segmented track (1), and the pads (131) connected to the same segmented track (1) have the same height.

4. The bridge span structure sliding track according to claim 3, characterized in that, The pad (131) is an I-beam web.

5. The bridge span structure sliding track according to claim 1, characterized in that, Each of the segmented tracks (1) is connected to an angle steel (3), and the anchor (2) fixes the segmented track (1) to the cap beam (100) through the angle steel (3).

6. The bridge span structure sliding track according to any one of claims 1-5, characterized in that, The anchor (2) is a fixed climbing cone.

7. The bridge span structure sliding track according to any one of claims 1-5, characterized in that, Both the segmented track (1) located at the top of the slope and the segmented track (1) located at the bottom of the slope are provided with limiting members (14), which can respectively abut against both sides of the cap beam (100) along the transverse slope extension direction.

8. The bridge span structure sliding track according to any one of claims 1-5, characterized in that, The bridge span structure sliding track also includes a slide block (4), which is slidably connected to the upper end face (11) of the segmented track (1).

9. The bridge span structure sliding track according to any one of claims 1-5, characterized in that, The upper end face (11) of each segmented track (1) is coated with a lubricating coating.

10. The bridge span structure sliding track according to any one of claims 1-5, characterized in that, Each of the segmented tracks (1) is enclosed by steel plates and has a rectangular closed cross section.

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