Water seepage prevention device for main cable anchor chamber of suspension bridge

Abstract

The utility model belongs to the technical field of suspension bridge anchor way construction, and provides a suspension bridge main cable anchor chamber water seepage prevention device which comprises a corrugated pipe and a hoop assembly. The main cable is sleeved with the corrugated pipe, the corrugated pipe comprises a first end and a second end, the first end is connected with a flange plate in a sealed mode, and the flange plate is arranged at an anchor inlet of the main cable in a sleeving mode and fixed to the outer wall of the anchor chamber through bolts; and the hoop assembly comprises two groups of semicircular hoops which are connected through bolts and sleeve the second end part and the main cable, so that the inner surface of the second end part is tightly attached to the outer surface of the main cable. The corrugated pipe, the flange plate and the two groups of semicircular hoops are matched to wrap the main cable and the main cable anchor inlet, so that water in a main cable anchor inlet area is effectively prevented from entering the anchor chamber through the main cable anchor inlet, water flowing along the main cable is effectively prevented from entering the anchor chamber through the main cable anchor inlet, the dryness in the anchor chamber is prevented from being influenced by water entering the anchor chamber, the durability of the main cable is improved, and the service life of the main cable is prolonged. Meanwhile, the corrugated pipe can effectively adapt to deformation of the main cable caused by dynamic load and temperature.

Description

Technical Field

[0001] This utility model relates to the field of suspension bridge anchorage construction technology, specifically to a water-proof device for the main cable anchorage chamber of a suspension bridge. Background Technology

[0002] A suspension bridge, also known as a suspension bridge, is a bridge whose superstructure is mainly composed of cables (or steel chains) that are suspended from towers and anchored to both banks (or both ends of the bridge).

[0003] Among them, the cable (or steel chain) is the main load-bearing component of the superstructure, and its corrosion protection and sealing are extremely important. Currently, S-shaped steel wire winding, anti-corrosion coating, and air dehumidification are commonly used to ensure the humidity inside the main cable. However, in the anchorage area of ​​the main cable, especially at the anchorage point, deformation often occurs due to factors such as thermal stress, internal stress, prestress, and dynamic loads on the bridge deck, leading to damage to the coating at the anchorage point. Damage to the coating at the anchorage point can easily cause water to enter the anchor chamber and reduce the dryness of the anchor chamber, thus affecting the durability of the main cable. Therefore, to address the above technical problems, a water-proofing device for the anchorage of the main cable of a suspension bridge is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model proposes a water-proof device for the anchor chamber of a suspension bridge main cable, which prevents water from entering the anchor chamber and affecting its dryness, thereby improving the durability of the main cable.

[0005] A water-proofing device for the anchor chamber of the main cable of a suspension bridge includes:

[0006] A corrugated pipe, fitted onto the main cable, includes a first end and a second end. The first end is sealed with a flange, which is fitted onto the anchorage of the main cable and fixed to the outer wall of the anchorage chamber by bolts.

[0007] The ring assembly includes two sets of semi-circular rings, which are connected by bolts and fitted onto the second end and the main cable so that the inner surface of the second end is in close contact with the outer surface of the main cable.

[0008] The beneficial effects of the above-mentioned anti-seepage device for the main cable anchor chamber of a suspension bridge are as follows:

[0009] By using corrugated pipes, flanges, and two sets of semi-circular ring clamps to wrap the main cable and the main cable anchorage, water in the main cable anchorage area is effectively prevented from entering the anchor chamber through the main cable anchorage and water flowing along the main cable through the main cable anchorage. This prevents water from entering the anchor chamber and affecting the dryness of the anchor chamber, thus improving the durability of the main cable. At the same time, the corrugated pipes can effectively adapt to the deformation of the main cable caused by dynamic loads and temperature.

[0010] In one embodiment, the corrugated pipe is filled with a superabsorbent polymer. By filling it with the superabsorbent polymer, water that seeps into the corrugated pipe can be absorbed, further improving the device's waterproofing effect.

[0011] In one embodiment, a sealing gasket is provided on the flange, and the sealing gasket is located between the flange and the outer wall of the anchorage. By providing the sealing gasket, the sealing performance of the connection between the flange and the outer wall of the anchorage can be improved, further enhancing the water-proof effect of the device.

[0012] In one embodiment, a semi-circular rubber pad is detachably provided on the inner side of one end of each of the two sets of semi-circular ring clamps, and the inner side of the semi-circular rubber pad can be tightly attached to the outer surface of the second end. By providing the semi-circular rubber pad, the corrugated pipe can be prevented from being squeezed and damaged when the semi-circular ring clamp is fixed, thereby improving the service life of the corrugated pipe. Moreover, the semi-circular rubber pad is detachable, making it easy to replace semi-circular rubber pads of different thicknesses to adapt to corrugated pipes of different sizes, so that the inner surface of corrugated pipes of different sizes can be tightly attached to the outer surface of the main cable.

[0013] In one embodiment, each of the two sets of semicircular rubber pads has a locking block on its outer side, and each of the two sets of semicircular ring clamps has a locking groove on its inner side, allowing the locking block to engage within the groove. The semicircular rubber pads and semicircular ring clamps are connected by a snap-fit ​​mechanism, facilitating the installation and removal of the semicircular rubber pads.

[0014] In one embodiment, multiple sets of sealing strips are provided on the inner side of the other end of each of the two sets of semicircular ring clamps, and all of the sealing strips are in close contact with the outer surface of the main cable. By providing multiple sets of sealing strips, the sealing performance between the inner side of the semicircular ring clamp and the outer surface of the main cable can be improved, preventing water on the main cable from flowing into the corrugated pipe through the semicircular ring clamp.

[0015] In one embodiment, both sets of semicircular rings have guide cones at their ends furthest from the bellows. When water on the main cable flows to the semicircular rings, the guide cones guide the water to flow along the outer surface of the semicircular rings, further preventing water on the main cable from flowing into the bellows through the semicircular rings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 A three-dimensional structural schematic diagram of a water-proof device for the main cable anchor chamber of a suspension bridge, provided in an embodiment of this utility model;

[0018] Figure 2 for Figure 1 The image shows a front view after sectional cutting of a water-proofing device for the anchor chamber of a suspension bridge main cable.

[0019] Figure 3 for Figure 1 An exploded view of a water-proofing device for the main cable anchor chamber of a suspension bridge is shown.

[0020] Figure 4 for Figure 1 The diagram shown is an exploded view of the ring hoop assembly in a water-proofing device for the main cable anchor chamber of a suspension bridge.

[0021] Figure label:

[0022] 1. Main cable;

[0023] 10. Bellows; 101. First end; 102. Second end;

[0024] 20. Flange; 201. Gasket;

[0025] 30. Semicircular ring clamp; 301. Semicircular rubber pad; 3011. Clamping block; 302. Clamping groove; 303. Sealing strip; 304. Guide cone surface;

[0026] 40. Superabsorbent polymer materials. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1 to 3 One embodiment of a suspension bridge main cable anchorage waterproofing device includes a corrugated pipe 10 and a ring assembly.

[0029] The corrugated pipe 10 is fitted onto the main cable 1. The corrugated pipe 10 includes a first end 101 and a second end 102. The first end 101 is sealed with a flange 20, which is fitted onto the main cable's anchor inlet and fixed to the outer wall of the anchor chamber by bolts. Specifically, a sealing gasket 201 is provided on the flange 20, located between the flange 20 and the outer wall of the anchor chamber. By fixing the corrugated pipe 10 to the main cable's anchor inlet with the flange 20, the main cable's anchor inlet is enclosed, preventing water from entering the anchor chamber through the main cable's anchor inlet and affecting the dryness of the anchor chamber, thus improving the durability of the main cable 1. The sealing gasket 201 further enhances the sealing performance between the flange 20 and the outer wall of the anchor chamber, improving the device's anti-seepage effect.

[0030] Please see Figures 2 to 4In one embodiment, the ring assembly includes two sets of semi-circular rings 30, which are connected by bolts and fitted onto the second end 102 and the main cable 1, so that the inner surface of the second end 102 is in close contact with the outer surface of the main cable 1. Specifically, a semi-circular rubber pad 301 is detachably provided on the inner side of one end of each of the two sets of semi-circular rings 30, and the inner side of the semi-circular rubber pad 301 can contact the outer surface of the second end 102. Multiple sealing strips 303 are provided on the inner side of the other end of each of the two sets of semi-circular rings 30, and the multiple sealing strips 303 are in close contact with the outer surface of the main cable 1.

[0031] In the above embodiments, by setting two sets of semi-circular ring clamps 30, the inner surface of the second end 102 of the corrugated pipe 10 is tightly attached to the outer surface of the main cable 1, which can block the water flowing along the main cable 1, prevent water from entering the anchor chamber through the main cable anchor inlet and affecting the dryness of the anchor chamber, and improve the durability of the main cable 1. By setting semi-circular rubber pads 301, the corrugated pipe 10 can be prevented from being squeezed and damaged when the semi-circular ring clamps 30 are fixed, thus improving the service life of the corrugated pipe 10. Moreover, the semi-circular rubber pads 301 are detachable, making it easy to replace semi-circular rubber pads 301 of different thicknesses to adapt to corrugated pipes 10 of different sizes, so that the inner surface of corrugated pipes 10 of different sizes can be tightly attached to the outer surface of the main cable 1. By setting multiple sets of sealing strips 303, the sealing between the inner side of the semi-circular ring clamps 30 and the outer surface of the main cable 1 can be improved, preventing water on the main cable 1 from flowing into the corrugated pipe 10 through the semi-circular ring clamps 30, further improving the water-proof effect of the device.

[0032] Based on the above embodiments, further, each of the two sets of semicircular rubber pads 301 has a locking block 3011 on its outer side, and each of the two sets of semicircular ring clamps 30 has a locking groove 302 on its inner side, so that the locking block 3011 can be locked in the locking groove 302. The semicircular rubber pads 301 and the semicircular ring clamps 30 are connected by a snap-fit ​​connection, making it convenient to install and remove the semicircular rubber pads 301.

[0033] Based on the above embodiment, further, each of the two sets of semicircular ring hoops 30 is provided with a flow guiding cone surface 304 at the ends away from the corrugated pipe 10. When water on the main cable 1 flows to the semicircular ring hoops 30, the flow guiding cone surface 304 can guide the water to flow along the outer surface of the semicircular ring hoops 30, further preventing water on the main cable 1 from flowing into the corrugated pipe 10 through the semicircular ring hoops 30.

[0034] Please see Figure 2 In one embodiment, the corrugated pipe 10 is filled with a superabsorbent polymer 40. By filling with the superabsorbent polymer 40, water that seeps into the corrugated pipe 10 can be absorbed. Through the waterproofing of the corrugated pipe 10 and the water absorption of the superabsorbent polymer 40, the waterproofing effect of the device is further improved. Specifically, the superabsorbent polymer 40 is a superabsorbent polymer resin.

[0035] The specific implementation method of the above-mentioned anti-seepage device for the main cable anchor chamber of a suspension bridge is as follows:

[0036] By using a corrugated pipe 10, flange 20, and two sets of semi-circular ring clamps 30 to wrap the main cable 1 and the main cable anchorage, water in the main cable anchorage area is effectively prevented from entering the anchor chamber through the main cable anchorage and water flowing along the main cable 1 through the main cable anchorage. Furthermore, by filling the corrugated pipe 10 with a super absorbent polymer material 40, water that seeps into the corrugated pipe 10 can be absorbed, thus preventing water from seeping into the anchor chamber after entering the corrugated pipe 10. This double anti-seepage structure effectively prevents water from entering the anchor chamber and affecting the dryness of the anchor chamber, improving the durability of the main cable 1. At the same time, the corrugated pipe 10 can effectively adapt to the deformation of the main cable 1 caused by dynamic loads and temperature.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended 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 therein. 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. A seepage prevention device for the anchor chamber of the main cable of a suspension bridge, characterized in that, include: A corrugated pipe (10) is fitted onto the main cable (1). The corrugated pipe (10) includes a first end (101) and a second end (102). The first end (101) is sealed with a flange (20). The flange (20) is fitted onto the anchorage of the main cable and fixed to the outer wall of the anchorage by bolts. The ring assembly includes two sets of semi-circular rings (30), which are connected by bolts and are fitted onto the second end (102) and the main cable (1) so that the inner surface of the second end (102) is in close contact with the outer surface of the main cable (1).

2. The anti-seepage device for the main cable anchorage of a suspension bridge according to claim 1, characterized in that, The corrugated pipe (10) is filled with a superabsorbent polymer material (40).

3. The anti-seepage device for the main cable anchorage of a suspension bridge according to claim 1, characterized in that, A sealing gasket (201) is provided on the flange (20), and the sealing gasket (201) is located between the flange (20) and the outer wall of the anchor chamber.

4. A seepage prevention device for the main cable anchorage of a suspension bridge according to claim 1, characterized in that, Both sets of semicircular rings (30) have a detachable semicircular rubber pad (301) on the inner side of one end, and the inner side of the semicircular rubber pad (301) can be tightly attached to the outer surface of the second end (102).

5. A seepage prevention device for the main cable anchorage of a suspension bridge according to claim 4, characterized in that, Both sets of semicircular rubber pads (301) are provided with a locking block (3011) on the outside, and both sets of semicircular rings (30) are provided with a locking groove (302) on the inside, and the locking block (3011) can be locked in the locking groove (302).

6. A seepage prevention device for the main cable anchorage of a suspension bridge according to claim 4, characterized in that, Multiple sets of sealing strips (303) are provided on the inner side of the other end of the two sets of semi-circular rings (30), and the multiple sets of sealing strips (303) are in close contact with the outer surface of the main cable (1).

7. A seepage prevention device for the main cable anchorage of a suspension bridge according to claim 6, characterized in that, Both sets of semicircular rings (30) have flow guide cones (304) at their ends away from the bellows (10).

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