CN211200063U - Bridge expansion joint with self-drainage function - Google Patents
Bridge expansion joint with self-drainage function Download PDFInfo
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- CN211200063U CN211200063U CN201922119242.3U CN201922119242U CN211200063U CN 211200063 U CN211200063 U CN 211200063U CN 201922119242 U CN201922119242 U CN 201922119242U CN 211200063 U CN211200063 U CN 211200063U
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- expansion joint
- water stop
- stop belt
- belt body
- bridge
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Abstract
The utility model belongs to the technical field of the bridge expansion joint, specific saying relates to a bridge expansion joint with from drainage function. The main technical scheme is as follows: the water stop belt comprises a water stop belt body arranged between the anchoring parts of the expansion joint, fishbone-shaped convex ribs or grooves arranged on the upstream surface of the water stop belt body along the axial direction, and the water stop belt body is provided with a downward bent concave space matched with the movement of the expansion joint of the bridge. This bridge expansion joint from drainage has can automatic discharge ponding and debris and anti flexible and shock resistance strong characteristics.
Description
Technical Field
The utility model belongs to the technical field of the bridge expansion joint, specific saying relates to a bridge expansion joint with from drainage function.
Background
The water stop belt is widely applied to water stop at construction joints and deformation joints (or settlement joints) of concrete structures, and the working principle of the water stop belt is to increase the joint area of the joints of the concrete structures and change and prolong the water seepage path. Meanwhile, the high elasticity and the compressible deformability of the rubber material are utilized to play a role in fastening and sealing the concrete joint, effectively prevent and control the water leakage of the building member and play a role in damping and buffering. The waterstops arranged in the bridge expansion joints are mostly rubber waterstops, and because the bridge panels can expand or contract due to temperature changes and other reasons, an expansion joint is arranged between every two adjacent bridge panels with preset beam lengths, and the expansion deformation of the bridge in the length direction is mainly borne by the bridge expansion joints.
At present, bridge expansion joints are of various types, and most commonly, two section steels are symmetrically arranged on two sides of the expansion joint, and then a U-shaped or V-shaped rubber water stop is arranged between the two section steels so as to prevent rainwater from flowing into a bridge lower structure from gaps between the section steels. However, when the load of the bridge deck changes or the environmental temperature changes, the bridge body can move in a telescopic manner, impurities often fall into gaps to influence the normal extension and contraction of the section steel, and the expansion joints can be seriously deformed and damaged; secondly, the bridge deck bears the frequent impact of the vehicle, the expansion joint reciprocates, the physical performance of the waterstop body is damaged, the periodic maintenance and replacement are needed, and the use cost is high; rainwater and the like are gathered in the water stop belt and cannot be discharged in time, the water stop belt body and the profile steel are corroded and damaged, and the service life of the waterproof structure of the expansion joint is shortened.
The traditional comb-tooth bridge expansion device is not provided with a drainage device or adopts a simple bottom water receiving bucket device, so that water and dirt accumulation occurs between comb tooth plates and at the bottom of the comb-tooth bridge expansion device in the use process, and the normal use of the comb-tooth bridge expansion device is influenced; and adopt simple and easy water collector, can make rainwater along bridge floor lower edge landing to the girder belly, make beam-ends and support corrosion, influence the normal use of bridge and support.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can automatic discharge ponding and debris and anti flexible and novel bridge expansion joint that shock resistance is strong.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a bridge expansion joint with from drainage function which characterized in that: the water stop belt comprises a water stop belt body arranged between the anchoring parts of the expansion joint, fishbone-shaped convex ribs or grooves arranged on the upstream surface of the water stop belt body along the axial direction, and the water stop belt body is provided with a downward bent concave space matched with the movement of the expansion joint of the bridge.
The additional technical characteristics of the bridge expansion joint with the self-drainage function further comprise that:
a tubular flow passage is axially arranged in the back water surface of the water stop belt body, and is provided with a plurality of water permeable holes communicated with the upstream surface of the water stop belt body;
-said water-permeable holes are distributed between adjacent said ridges or at the root of the fishbone-like groove;
the upstream surface of the water stop belt body is provided with a reinforced layer consisting of non-woven fabric or glass fiber cloth;
the surface of the non-woven fabric or the glass fiber cloth has a rough surface formed by fiber yarns extending out of the non-woven fabric or the glass fiber cloth.
The utility model provides a bridge expansion joint with from drainage function compares with prior art, has following advantage: the bridge waterstop is arranged in the expansion joint and is bent and folded along with the expansion joint, and as the fishbone-shaped convex edge or groove is arranged on the upstream surface of the waterstop body along the axial direction, accumulated water or sundries on the surface of the waterstop body are pushed in the single direction when the waterstop body is bent and moved in a reciprocating manner until the waterstop is discharged; secondly, as the tubular flow passage is axially arranged in the back water surface of the water stop belt body and is provided with a plurality of water permeable holes communicated with the upstream surface of the water stop belt body, the accumulated water on the surface of the water stop belt can gradually permeate into the tubular flow passage in the belt body to be discharged in time, and the water stop belt has the advantages of simple structure and outstanding water discharge effect; thirdly, because the upstream face of the water stop belt body is provided with the reinforcing layer formed by the non-woven fabric or the glass fiber cloth, the compression resistance and the tear resistance of the water stop belt are enhanced, and the service life of the water stop belt is prolonged.
Drawings
Fig. 1 is a schematic structural view of a bridge expansion joint with a self-drainage function of the present invention;
fig. 2 is a top view of the self-draining bridge expansion joint.
Detailed Description
The structure and the working principle of the bridge expansion joint with the self-drainage function provided by the present invention will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, the present invention provides a schematic view of a structure of a bridge expansion joint with self-drainage function. The structure of the bridge expansion joint comprises a water stop belt body 1 arranged between expansion joint anchoring parts 10, fishbone-shaped convex edges 2 or grooves axially arranged on a water-facing surface 11 of the water stop belt body 1, and the water stop belt body 1 is provided with a downward bent concave space 3 matched with the movement of the bridge expansion joint.
The working principle is as follows: this novel bridge expansion joint's waterstop area body 1 has the burr-shaped bead 2 or the recess on its axial upstream face 11, promptly after the bridge floor load changes, expansion joint concertina movement drives the waterstop area body 1 and makes the bending folding action to the center, and the burr-shaped bead 2 or the recess of its upstream face 11 then promote surperficial ponding or debris unidirectional movement, make it gradually by the waterstop of discharging, and the waterstop of this structure is applicable to the expansion joint that easily receives the repeated impact such as highway bridge, railway bridge.
In the above-described structure of the self-draining bridge waterstop,
in order to enhance the self-drainage effect, a tubular flow passage 4 is axially arranged in the back water surface 12 of the water stop belt body 1, and the tubular flow passage 4 is provided with a plurality of water permeable holes 5 communicated with the upstream surface 11 of the water stop belt body 1, namely when water flows exist in the upstream surface 11 of the water stop belt body 1, the water quickly permeates into the tubular flow passage 4 in the water stop belt body 1 through the water permeable holes 5, so that the water can be converged and drained in time, and the phenomenon of large water accumulation is avoided;
preferably, the water permeable holes 5 are distributed between the adjacent ribs 2 or at the root of the fishbone-shaped groove, because the water stop belt body 1 is bent and folded downwards, water is accumulated at the root of the fishbone-shaped groove or rib 2 most easily, and the water permeable holes 5 have the best water seepage effect at the moment;
the water stop belt body 1 is repeatedly bent and folded to realize drainage, and in order to enhance the structural strength of the water stop belt body 1, the water facing surface 11 of the water stop belt body 1 is provided with the enhancement layer 6 formed by non-woven fabric or glass fiber cloth, so that the tensile resistance and the tear resistance of the water stop belt body 1 are enhanced, the service cycle of the water stop belt is prolonged, and the use cost is reduced;
preferably, the surface of the non-woven fabric or the glass fiber cloth is provided with a rough surface 7 formed by fiber yarns extending out of the non-woven fabric or the glass fiber cloth, so that the surface of the water stop can be protected, the load impact from a bridge deck or the damage of splashed sundries (such as stones) can be prevented, meanwhile, the rough surface can also enhance the pushing of accumulated water and sundries, and the drainage efficiency is improved.
Claims (5)
1. The utility model provides a bridge expansion joint with from drainage function which characterized in that: the water stop belt comprises a water stop belt body arranged between the anchoring parts of the expansion joint, fishbone-shaped convex ribs or grooves arranged on the upstream surface of the water stop belt body along the axial direction, and the water stop belt body is provided with a downward bent concave space matched with the movement of the expansion joint of the bridge.
2. The bridge expansion joint with self-drainage function as claimed in claim 1, wherein: and a tubular flow passage is axially arranged in the back water surface of the water stop belt body, and the tubular flow passage is provided with a plurality of water permeable holes communicated with the upstream surface of the water stop belt body.
3. The bridge expansion joint with self-drainage function as claimed in claim 2, wherein: the water permeable holes are distributed between the adjacent convex edges or at the root parts of the fishbone-shaped grooves.
4. The bridge expansion joint with self-drainage function as claimed in claim 1, wherein: the upstream surface of the water stop belt body is provided with a reinforced layer composed of non-woven fabrics or glass fiber cloth.
5. The bridge expansion joint with self-drainage function as claimed in claim 4, wherein: the surface of the non-woven fabric or the glass fiber cloth is provided with a hair surface formed by fiber yarns extending out of the non-woven fabric or the glass fiber cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922119242.3U CN211200063U (en) | 2019-12-02 | 2019-12-02 | Bridge expansion joint with self-drainage function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922119242.3U CN211200063U (en) | 2019-12-02 | 2019-12-02 | Bridge expansion joint with self-drainage function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211200063U true CN211200063U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922119242.3U Active CN211200063U (en) | 2019-12-02 | 2019-12-02 | Bridge expansion joint with self-drainage function |
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| Country | Link |
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| CN (1) | CN211200063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016625A (en) * | 2021-11-08 | 2022-02-08 | 四川宏亿复合材料工程技术有限公司 | Buried type drainable composite water stopping assembly and use method thereof |
-
2019
- 2019-12-02 CN CN201922119242.3U patent/CN211200063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114016625A (en) * | 2021-11-08 | 2022-02-08 | 四川宏亿复合材料工程技术有限公司 | Buried type drainable composite water stopping assembly and use method thereof |
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