Waterproof structure based on expansion joint of continuous bridge roof

By installing a U-shaped structure and multiple layers of waterproof barriers at the expansion joints of the bridge roof, the leakage problem at the expansion joints of the bridge roof was solved, achieving effective waterproofing and drainage, and improving the durability and aesthetics of the structure.

CN115596103BActive Publication Date: 2025-11-25CHINA CONSTR FIFTH ENG DIV CORP LTD
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Patent Information

Application Number
CN202211296606.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2022-10-18
Filing Date
2022-10-21
Publication Date
2025-11-25
Estimated Expiration
2042-10-21

AI Technical Summary

Technical Problem

Waterproofing at the expansion joints of the roof of the bridge is difficult to handle, and existing measures are easily affected by vibrations. Furthermore, traditional waterproofing materials are easily damaged, increasing maintenance costs.

Method used

A U-shaped structure is installed at the expansion joint, including a cover plate, connectors and drainage ditch, combined with waterstop and asphalt hemp fiber to form a multi-layer waterproof barrier, and drainage is diverted through the drainage ditch.

Benefits of technology

It achieves organized drainage and removal of water, and the waterproof structure is durable, not easily damaged, aesthetically pleasing, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of building engineering, and discloses a waterproof structure based on a connecting bridge roof expansion joint, which comprises a fixed building, a connecting bridge arranged on the fixed building, a expansion joint in the shape of 'N' formed between the fixed building and the connecting bridge, and a connecting bridge support arranged between the fixed building and the connecting bridge for connection; a drainage ditch in communication with the expansion joint is arranged at the bottom of the expansion joint and is hung on a ceiling structure; a cover plate is arranged at the top of the expansion joint and the two ends of the cover plate are connected with the fixed building and the connecting bridge respectively; first connecting pieces and second connecting pieces are arranged at the top of the connecting bridge and the fixed building respectively; the two ends of the cover plate are fixedly connected with the first connecting pieces and the second connecting pieces through bolts respectively; a conduit-shaped drainage ditch is arranged at the bottom of the expansion joint, water flowing from the expansion joint is organized and drained; meanwhile, the drainage ditch is arranged at the bottom of the connecting bridge, is relatively beautiful, is not easy to be damaged, and has long durability.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, and specifically relates to a waterproof structure based on a continuous bridge roof expansion joint. BACKGROUND

[0002] With the popularization of the application of the aerial walkway, the continuous bridge roof gradually enters the vision of ordinary people. The current support type continuous bridge adopts the support on the highway bridge engineering, and strengthens the damping effect, but adopts the traditional building roof waterproof measure when treating the waterproof of the expansion joint. Considering the influence of deformation and vibration, the common building roof deformation joint adopts the polyethylene plastic foam rod which may be loose and damaged, thereby increasing the maintenance cost and not durable.

[0003] The present application mainly aims at the leakage problem at the expansion joint of the continuous bridge roof in the current stage. In the past, the continuous bridge is often used on the bridge highway, and no waterproof layer is needed on the support continuous bridge, but the roof waterproof is a necessary process. Now, the two are combined to form a more common continuous bridge aerial walkway, and the waterproof construction of the roof at the expansion joint is more difficult to handle the leakage at the expansion joint. The common treatment method on the market is to set an arch cover plate on the surface of the expansion joint by using the galvanized aluminum plate and fix it at both ends of the expansion joint. When subjected to vibration, water is easy to flow down from the expansion joint. SUMMARY

[0004] The technical problem solved by the present application is that the present application aims to prevent water at the expansion joint of the continuous bridge roof, and can also drain water away.

[0005] A waterproof structure based on the expansion joint of the continuous bridge roof, comprising a fixed building and a continuous bridge placed on the fixed building, characterized in that the fixed building and the continuous bridge form a "N" shaped expansion joint, and the fixed building and the continuous bridge are connected by a continuous bridge support.

[0006] Preferably, the top of the expansion joint is provided with a cover plate, and the two ends of the cover plate are connected with the fixed building and the continuous bridge respectively.

[0007] Preferably, the top of the continuous bridge and the fixed building is respectively provided with a first connecting piece and a second connecting piece; the two ends of the cover plate are fixedly connected with the first connecting piece and the second connecting piece by bolts respectively.

[0008] Preferably, the first connecting piece comprises a connecting piece body, and the top of the connecting piece body is provided with a bending part, and a water blocking seat is horizontally arranged on the bending part; the bottom of the connecting piece body is provided with a hook part; the second connecting piece has the same structure as the first connecting piece; one bolt is screwed with the bending part of the first connecting piece after passing through the left end of the cover plate and the water blocking seat of the first connecting piece; the hook part of the first connecting piece is fixedly connected with the connecting bridge; the other bolt is screwed with the bending part of the second connecting piece after passing through the right end of the cover plate and the water blocking seat of the second connecting piece; and the hook part of the second connecting piece is fixedly connected with the fixed building.

[0009] Preferably, a plurality of protrusions are formed on the water blocking seat at intervals, and a plurality of grooves corresponding to the protrusions are formed on the bottom of the cover plate.

[0010] Preferably, a water stop is arranged at the inside of the expansion joint close to the cover plate.

[0011] Preferably, the bottom of the cover plate is provided with a first fixing seat and a second fixing seat at intervals, and a reinforcing plate is arranged between the first fixing seat and the second fixing seat; and the reinforcing plate is fixed with the cover plate by waterproof bolts.

[0012] Preferably, the inside of the upper section of the expansion joint is filled with asphalt hemp.

[0013] Compared with the prior art, the beneficial effects of the present application are as follows: based on the waterproof structure of the expansion joint of the connecting bridge roof, a conduit-shaped drainage ditch is arranged at the bottom of the expansion joint to organize and drain the water flowing from the expansion joint; at the same time, the drainage ditch is located at the bottom of the connecting bridge, which is more beautiful and not easy to be damaged, and has long durability.

[0014] Additional aspects and advantages of the present application will be better understood from the following description taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0016] Figure 1 is a schematic diagram of the overall structure of the present application.

[0017] Figure 2 is a schematic diagram of the enlarged structure of A of the present application. Figure 1

[0018] Figure 3 is a schematic diagram of the first connecting piece structure of the present application.​

[0019] In the figure: fixed building 1; connecting bridge 2; expansion joint 3; connecting bridge support 4; drainage ditch 5; cover plate 6; first connecting piece 7; second connecting piece 8; bolt 9; connecting piece body 10; bending part 11; water blocking seat 12; hook part 13; protruding block 14; groove 15; water stop 16; asphalt hemp 17; first fixing seat 18; second fixing seat 19; reinforcing plate 20; waterproof bolt 21. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0021] Please refer to Figures 1 to 3 In the embodiments of the present application, a waterproof structure based on the expansion joint of a connecting bridge roof comprises a fixed building 1 and a connecting bridge 2 placed on the fixed building 1. An expansion joint 3 in the shape of “ㄣ” is formed between the fixed building 1 and the connecting bridge 2, and a connecting bridge support 4 is arranged between the fixed building 1 and the connecting bridge 2 to connect them. The bottom of the expansion joint 3 is provided with a drainage ditch 5 in communication with the expansion joint 3, and the drainage ditch 5 is hung on a ceiling structure.

[0022] Specifically, the connecting bridge is a bridge body connecting two high-rise buildings for facilitating people to pass through. The connecting bridge support 4 is fixedly connected with the fixed building 1, and the connecting bridge 2 is placed on the connecting bridge support 4. The ceiling structure is a ceiling structure beam in the fixed building 1 indoors or outdoors. The drainage ditch 5 can be hung on the ceiling structure for fixation, or can also be hung on the bottom of the connecting bridge 2. The drainage ditch 5 is formed by pouring concrete. The slope of the drainage ditch 5 is 1%.

[0023] Further, the top of the expansion joint 3 is provided with a cover plate 6, and the two ends of the cover plate 6 are connected with the fixed building 1 and the connecting bridge 2 respectively.

[0024] Specifically, the cover plate 6 plays a role of preliminary water blocking, that is, a first layer of waterproof barrier.

[0025] Further, the top of the connecting bridge 2 and the fixed building 1 is respectively provided with a first connecting piece 7 and a second connecting piece 8. The two ends of the cover plate 6 are fixedly connected with the first connecting piece 7 and the second connecting piece 8 by bolts 9 respectively.

[0026] Specifically, the bolt 9 can be an expansion anchor bolt.

[0027] Further, the first connecting piece 7 comprises a connecting piece body 10, and the top of the connecting piece body 10 is provided with a bending part 11, and the bending part 11 is horizontally provided with a water-blocking seat 12; the bottom of the connecting piece body 10 is provided with a hook part 13; the second connecting piece 8 has the same structure as the first connecting piece 7;

[0028] Specifically, one of the bolts 9 passes through the left end of the cover plate 6, the water-blocking seat 12 of the first connecting piece 7, and is threadedly connected with the bending part 11 of the first connecting piece 7; the hook part 13 of the first connecting piece 7 is fixedly connected with the connecting bridge 2; the other bolt 9 passes through the right end of the cover plate 6, the water-blocking seat 12 of the second connecting piece 8, and is threadedly connected with the bending part 11 of the second connecting piece 8; the hook part 13 of the second connecting piece 8 is fixedly connected with the fixed building 1.

[0029] Further, a plurality of protrusions 14 are formed on the water-blocking seat 12 in an interval manner, and the bottom of the cover plate 6 is formed with a plurality of grooves 15 corresponding to the protrusions 14.

[0030] Specifically, the cooperation of the protrusions 14 and the grooves 15 makes it difficult for water to flow from the cover plate 6 into the expansion joint 3, thereby playing a preliminary waterproof role.

[0031] Further, a water stop 16 is arranged at the inside of the expansion joint 3 close to the cover plate 6.

[0032] Specifically, the water stop 16 can be selected from a CB type rubber water stop (buried type with a hole in the middle) or a CP type rubber water stop (buried type without a hole in the middle); the water stop 16 serves as a second layer of waterproof barrier; the water stop 16 can be purchased on the market, and will not be described here.

[0033] Further, the inside of the upper section of the expansion joint 3 is filled with asphalt hemp 17.

[0034] Specifically, the asphalt hemp 17 is filled by mixing asphalt and hemp together, and is a good waterproof material; the filling starts below the water stop 16 and ends at the connecting bridge support 4; the asphalt hemp 17 serves as a third layer of waterproof barrier; the fourth layer of barrier is for water to flow into the drainage ditch 5, and the drainage ditch 5 can be connected with indoor or outdoor drainage pipelines to drain water.

[0035] Further, the bottom of the cover plate 6 is provided with a first fixing seat 18 and a second fixing seat 19 in an interval manner, and a reinforcing plate 20 is arranged between the first fixing seat 18 and the second fixing seat 19; the reinforcing plate 20 is fixed between the cover plate 6 by waterproof bolts 21.

[0036] Specifically, the reinforcing plate can enhance the rigidity of the cover plate and prevent the cover plate from being flattened when a person or object passes through the connecting bridge.

[0037] It is apparent for a person skilled in the art that the present application is not limited to the details of the above described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being defined by the appended claims rather than the above description, and all changes coming within the meaning and equivalency range of the claims are intended to be embraced therein.

Claims

1. A waterproof structure at a bridge expansion joint of a bridge roof, comprising a fixed building and a bridge placed on the fixed building, characterized by, The expansion joint in the shape of "N" is formed between the fixed building and the connecting bridge, and the connecting bridge support is arranged between the fixed building and the connecting bridge to connect them; the bottom of the expansion joint is provided with a drainage ditch communicated with the expansion joint, and the drainage ditch is hung on the ceiling structure; the top of the expansion joint is provided with a cover plate, and the two ends of the cover plate are connected with the fixed building and the connecting bridge respectively; a water stop is arranged in the expansion joint near the cover plate; and the upper section of the expansion joint is filled with asphalt hemp.

2. The waterproof structure based on the expansion joint of the continuous bridge roof according to claim 1, characterized in that, The top of the connecting bridge and the fixed building is respectively provided with a first connecting piece and a second connecting piece; the two ends of the cover plate are fixedly connected with the first connecting piece and the second connecting piece through bolts respectively.

3. The waterproof structure based on the expansion joint of the continuous bridge roof according to claim 2, characterized in that, The first connecting piece comprises a connecting piece main body, the top of the connecting piece main body is provided with a bending part, and a water blocking seat is horizontally arranged on the bending part; the bottom of the connecting piece main body is provided with a hook part; the second connecting piece has the same structure as the first connecting piece; one bolt is screwed with the bending part of the first connecting piece after passing through the left end of the cover plate and the water blocking seat of the first connecting piece; the hook part of the first connecting piece is fixedly connected with the connecting bridge; the other bolt is screwed with the bending part of the second connecting piece after passing through the right end of the cover plate and the water blocking seat of the second connecting piece; and the hook part of the second connecting piece is fixedly connected with the fixed building.

4. The waterproof structure based on the expansion joint of the continuous bridge roof according to claim 3, characterized in that, A plurality of protrusions are formed on the water blocking seat at intervals, and a plurality of grooves corresponding to the protrusions are formed on the bottom of the cover plate.

5. The waterproof structure based on the expansion joint of the continuous bridge roof according to claim 1, characterized in that, The bottom of the cover plate is provided with a first fixing seat and a second fixing seat at intervals, and a reinforcing plate is arranged between the first fixing seat and the second fixing seat; and the reinforcing plate and the cover plate are fixed by waterproof bolts.

Citation Information

Patent Citations

  • Waterproof structure based on expansion joint of connecting bridge roof

    CN218911802U