CN212128844U - Bridge deck drainage system of one-way cross slope bridge of integral road bed - Google Patents
Bridge deck drainage system of one-way cross slope bridge of integral road bed Download PDFInfo
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- CN212128844U CN212128844U CN201922453058.2U CN201922453058U CN212128844U CN 212128844 U CN212128844 U CN 212128844U CN 201922453058 U CN201922453058 U CN 201922453058U CN 212128844 U CN212128844 U CN 212128844U
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Abstract
The utility model discloses a bridge floor drainage system of an integral roadbed one-way cross slope bridge, which comprises a bridge structure and a central separation belt, wherein the central separation belt comprises a high-side guardrail and a low-side guardrail, and also comprises a longitudinal drainage ditch, a first transverse drainage hole and a vertical drain pipe, the longitudinal drainage ditch is arranged at the bottom of the central separation belt, the bottom of the longitudinal drainage ditch is provided with a vertical drainage hole, the vertical drainage hole passes through the bridge structure, and the vertical drain pipe is arranged in the vertical drainage hole and is fixed with the bridge structure; the first transverse drain hole is formed in the bottom of the high-side guardrail and communicated with the road surface and the longitudinal drain ditch. The utility model provides a bridge floor drainage system of one-way cross slope bridge of integral road bed, space between the make full use of both sides guardrail need not the apron with its longitudinal drainage ditch as the bridge floor, and daily dimension is supported conveniently, and is with low costs, and the reliability is high.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering drainage system technique and specifically relates to a bridge floor drainage system of one-way cross slope bridge of integral road bed is related to.
Background
If the drainage of the bridge deck is not smooth, a water film can be formed after accumulated water is produced, the anti-skidding capacity of the bridge deck is reduced, the braking effect of a high-speed running vehicle is reduced, and then accidents such as vehicle sideslip and the like occur. The accumulated water can also cause a large amount of water splashed when the vehicle runs, influence the sight of a driver and cause other traffic accidents. Long-time ponding of bridge floor still can make rainwater infiltration layer of mating formation or even structural layer, reduces the durability of bridge floor pavement and structure, produces multiple bridge disease, greatly increases maintenance work load. The main function of the drainage system of the bridge deck is to quickly drain accumulated water on the bridge deck, and therefore the drainage system of the bridge deck is very important.
At present, the main mode of bridge deck drainage is to drain water through longitudinal and transverse slopes of the bridge deck, drain ditches (or blind ditches) arranged at the low side of the cross section and drain pipes to drain the water out of the bridge deck, and then directly drain the water out of the bridge deck or drain the water into a ground drainage system after collecting the water.
The integral roadbed bridge is often wider, the width of the integral roadbed bridge exceeds 40m, a one-way cross slope state exists on the ultrahigh road section, and the central separation belt is provided with an anti-collision guardrail. At this time, the deck on the higher side will have a great difficulty in draining. The following two solutions are currently commonly used:
(1) the central division belt guardrail is provided with transverse drain holes, water on a higher side bridge deck is drained into a lower side bridge deck firstly, and then is drained through a drainage system on the lower side bridge deck;
(2) and a longitudinal drainage ditch is arranged on the bridge floor at the left guardrail side of the higher side bridge floor to collect bridge floor water, and then rainwater is drained away through a vertical drainage pipe at the top position of the pier. The method has good drainage effect, but the roof of the drainage ditch needs to be provided with a through long cover plate, the cover plate is easy to damage, the traffic is influenced during maintenance, and the manufacturing cost is higher.
Chinese patent application publication No. CN109338879A, published as 2019, 02, 15, entitled "two-in-one bridge deck drainage system for steel structure bridges", discloses a two-in-one bridge deck drainage system for steel structure bridges: the inner space of the sidewalk ground beam forms a bridge floor drain pipe, a stainless steel rainwater collecting tank is arranged in the space above the bridge deck on the inner side of the sidewalk ground beam, a drainage grid is arranged on the inner side face of the sidewalk ground beam and connected with the stainless steel rainwater collecting tank, the bridge floor drain pipes on two sides of the expansion joint are connected through rubber flexible joints, and the bridge floor drain pipes are connected with ground rainwater wells through water falling pipes arranged at piers or bridge abutments. The invention skillfully utilizes the space of the stainless steel ground beam of the sidewalk as the drainage pipe of the bridge floor, thereby not only beautifying the bridge, but also solving the adverse influence on the landscape caused by the exposed drainage pipe of the conventional bridge. However, the patent is not applicable to bridge deck drainage of unidirectional cross-slope bridges.
Disclosure of Invention
The utility model discloses an overcome among the prior art apron in bridge floor escape canal of one-way cross slope bridge and damage easily, can influence the traffic during maintenance, the higher problem of cost provides a bridge floor drainage system of one-way cross slope bridge of integral road bed, and space between the make full use of both sides guardrail is with its longitudinal drainage ditch as the bridge floor, need not the apron, and daily maintenance is convenient, and is with low costs, and the reliability is high.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a bridge deck drainage system of an integral roadbed one-way cross slope bridge comprises a bridge structure and a central separation belt, wherein the central separation belt comprises a high-side guardrail and a low-side guardrail, and further comprises a longitudinal drainage ditch, a first transverse drainage hole and a vertical drainage pipe, the longitudinal drainage ditch is arranged at the bottom of the central separation belt, the bottom of the longitudinal drainage ditch is provided with a vertical drainage port, the vertical drainage port penetrates through the bridge structure, and the vertical drainage pipe is arranged in the vertical drainage port and is fixed with the bridge structure; the first transverse drain hole is formed in the bottom of the high-side guardrail and communicated with the road surface and the longitudinal drain ditch.
According to the technical scheme, the space between the guardrails on the left side and the right side of the single-slope integral roadbed bridge central separation belt is fully utilized and used as a longitudinal drainage ditch of the bridge floor, a cover plate is not needed, daily maintenance is convenient, the cost is low, and the reliability is high; the water on the higher side bridge deck is drained into a longitudinal drainage ditch among the guardrails of the central separation belt through a transverse drainage pipe arranged at the bottom of the high side guardrail; and the top of each pier leads the bridge floor water to the underside of the bridge through a vertical water drain pipe and is connected with a ground drainage system. According to the technical scheme, the drainage burden of the lower side bridge deck is not increased, and the bridge deck water cannot directly flow under the bridge.
Preferably, the bottom of the longitudinal drainage ditch is provided with a leveling layer, and the height of the top surface of the leveling layer is lower than that of the bottom surface of the first transverse drainage hole. The thickness of the leveling layer is about half of that of the bridge deck pavement layer, and the beam top and the concrete guardrail are subjected to waterproof treatment before the pavement. The leveling layer can achieve the effects of leveling and water proofing.
Preferably, the high-side guardrail structure further comprises bridge deck pavement, a longitudinal blind ditch is arranged between the high-side guardrail and the bridge deck pavement, and the height of the longitudinal blind ditch is lower than that of the bridge deck pavement. The bridge deck pavement is generally asphalt and has a certain water seepage gap, and the longitudinal blind ditches can collect and discharge interlayer water seeped below the bridge deck pavement.
Preferably, the longitudinal blind ditch is internally provided with gravels. The broken stone has a supporting function, the shell ensures the structural strength of the longitudinal blind ditch, and meanwhile, the broken stone can be infiltrated.
Preferably, the lower end of the longitudinal blind ditch is provided with a blocking plate and a second transverse drainage hole, and the second transverse drainage hole is communicated with the longitudinal blind ditch, the longitudinal drainage ditch and the road surface. The height of the bottom surface of the second transverse drain hole is higher than that of the bottom surface of the longitudinal drain ditch, and the height of the bottom surface of the second transverse drain hole is lower than that of the bottom surface of the longitudinal blind ditch. The plugging plate is used for intercepting and draining water flowing down from the longitudinal blind ditch and preventing the water from flowing under the bridge; the second transverse drain hole guides water in the longitudinal blind ditch into the longitudinal drain ditch and discharges the water together through the vertical drain pipe.
Preferably, the second lateral drainage hole has a size larger than that of the first lateral drainage hole. The second transverse drain hole drains the bridge floor water and the water in the longitudinal blind ditch at the same time, and the water drainage amount is larger than that of the first transverse drain hole.
Preferably, the vertical drain pipe comprises a drain pipe, a flange plate and an anchoring bolt, the drain pipe penetrates through the vertical drain port, the flange plate is fixed with the drain pipe, and the flange plate is fixed on the bridge structure through the anchoring bolt. The ring flange sets up in screed-coat 3 below, adopts the vertical water-drain pipe of flanged, and drainage system can install after bridge structures forms, need not to carry out pre-buried in the work progress, and convenient construction, articulate is reliable.
Preferably, the drain pipe is a galvanized steel pipe. Has high strength and good corrosion resistance.
The utility model has the advantages that: (1) according to the technical scheme, the space between the guardrails on the left and right sides of the left and right width bridges of the central separation belt of the one-way slope integral roadbed bridge is fully utilized and used as a bridge deck longitudinal drainage ditch, a cover plate is not needed, daily maintenance is convenient, cost is low, and reliability is high; (2) the drainage of the bridge floor water and the water between the paving layers is considered, the drainage effect is good, the drainage burden of the lower side bridge floor is not increased, and the bridge floor water cannot directly flow under the bridge; (3) the longitudinal blind ditches can collect and discharge interlayer water seeped below the bridge deck pavement, and have higher strength; (4) the vertical water drain pipe with the flange is adopted, a drainage system can be installed after a bridge structure is formed, embedding is not needed in the construction process, construction is convenient, and joint connection is reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a second transverse drainage hole of the present invention;
fig. 3 is a plan view of the present invention.
In the figure: the bridge structure comprises a bridge structure 1, a vertical water drainage port 1.1, a central dividing strip 2, a high-side guardrail 2.1, a low-side guardrail 2.2, a longitudinal drainage ditch 3, a first transverse drainage hole 4, a vertical drainage pipe 5, a drainage pipe 5.1, a flange plate 5.2, an anchoring bolt 5.3, a leveling layer 6, a bridge deck pavement 7, a longitudinal blind ditch 8, a plugging plate 9 and a second transverse drainage hole 10.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 3, the bridge deck drainage system of the integral roadbed one-way cross slope bridge comprises a bridge structure 1, a central separator 2, a longitudinal drainage ditch 3, a first transverse drainage hole 4, a vertical drainage pipe 5 and a bridge deck pavement 7, wherein the central separator 2 comprises a high side guardrail 2.1 and a low side guardrail 2.2.
The longitudinal drainage ditch 3 is arranged at the bottom of the central dividing belt 2, the bottom of the longitudinal drainage ditch 3 is provided with a leveling layer 6 and a vertical drainage port 1.1, and the height of the top surface of the leveling layer 6 is lower than that of the bottom surface of the first transverse drainage hole 4; the vertical water outlet 1.1 penetrates through the bridge structure 1, the vertical water drain pipe 5 comprises a water drain pipe 5.1 made of a galvanized steel pipe, a flange plate 5.2 and anchor bolts 5.3, the water drain pipe 5.1 penetrates through the vertical water outlet 1.1, the flange plate 5.2 is fixed with the water drain pipe 5.1, and the anchor bolts 5.3 fix the flange plate 5.2 on the bridge structure 1.
The first transverse drain hole 4 is arranged at the bottom of the high-side guardrail 2.1, and the first transverse drain hole 4 is communicated with the road surface and the longitudinal drain 3.
A longitudinal blind ditch 8 is arranged between the high side guardrail 2.1 and the bridge deck pavement 7, and broken stones are filled in the longitudinal blind ditch 8; the bottom surface of the longitudinal blind ditch 8 is lower than the bridge deck pavement 7; as shown in fig. 2, a blocking plate 9 and a second transverse drainage hole 10 are arranged at the lower end of the longitudinal blind ditch 8, and the second transverse drainage hole 10 is communicated with the longitudinal blind ditch 8, the longitudinal drainage ditch 3 and the road surface; the height of the bottom surface of the second transverse drain hole 10 is higher than that of the bottom surface of the longitudinal drain ditch 3, and the height of the bottom surface of the second transverse drain hole 10 is lower than that of the bottom surface of the longitudinal blind ditch 8; the second lateral drainage hole 10 is larger in size than the first lateral drainage hole 4.
According to the technical scheme, the space between the guardrails on the two sides of the left and right bridges of the center separation belt 2 of the one-way slope integral roadbed bridge is fully utilized and used as the longitudinal drainage ditch 3 of the bridge floor, a cover plate is not needed, daily maintenance is convenient, the cost is low, and the reliability is high; the water on the higher side bridge deck is drained into a longitudinal drainage ditch 3 among the guardrails of the central separation belt 2 through a transverse drainage pipe 5.1 arranged at the bottom of the high side guardrail 2.1; and the bridge floor water is led to the lower part of the bridge through a vertical water drain pipe 5 at the top of each pier, and is connected to a ground drainage system. According to the technical scheme, the drainage burden of the lower side bridge deck is not increased, and the bridge deck water cannot directly flow under the bridge. The longitudinal blind ditches 8 can collect and drain interlayer water seeping below the bridge deck pavement 7. The plugging plate 9 is used for intercepting and draining water flowing down from the longitudinal blind ditch 8 and preventing the water from flowing down to the position below the bridge; the second horizontal drainage holes 10 guide the water in the longitudinal blind ditches 8 into the longitudinal drainage ditches 3 and discharge the water together through the vertical drainage pipes 5.
Claims (8)
1. A bridge deck drainage system of an integral roadbed one-way cross slope bridge comprises a bridge structure and a central dividing strip, wherein the central dividing strip comprises a high-side guardrail and a low-side guardrail, and is characterized by further comprising a longitudinal drainage ditch, a first transverse drainage hole and a vertical drainage pipe, the longitudinal drainage ditch is arranged at the bottom of the central dividing strip, a vertical drainage port is arranged at the bottom of the longitudinal drainage ditch, the vertical drainage port penetrates through the bridge structure, and the vertical drainage pipe is arranged in the vertical drainage port and fixed with the bridge structure; the first transverse drain hole is formed in the bottom of the high-side guardrail and communicated with the road surface and the longitudinal drain ditch.
2. The bridge deck drainage system of the integral roadbed one-way cross slope bridge as claimed in claim 1, wherein the bottom of the longitudinal drainage ditch is provided with a leveling layer, and the top surface of the leveling layer is lower than the bottom surface of the first transverse drainage hole.
3. A bridge deck drainage system for an integral roadbed one-way cross slope bridge according to claim 1 or 2, further comprising a bridge deck pavement, wherein a longitudinal blind ditch is arranged between the high side guardrail and the bridge deck pavement, and the height of the longitudinal blind ditch is lower than that of the bridge deck pavement.
4. A deck drainage system for an integral roadbed one-way cross slope bridge according to claim 3, wherein the longitudinal blind ditches are filled with broken stones.
5. The bridge deck drainage system of the integral roadbed one-way cross slope bridge as claimed in claim 3, wherein a blocking plate and a second transverse drainage hole are arranged at the lower end of the longitudinal blind ditch, and the second transverse drainage hole is communicated with the longitudinal blind ditch, the longitudinal drain ditch and the road surface.
6. The bridge deck drainage system of an integral roadbed one-way cross slope bridge according to claim 5, wherein the size of the second transverse drainage hole is larger than that of the first transverse drainage hole.
7. The bridge deck drainage system of the integral roadbed one-way cross slope bridge as claimed in claim 1 or 2, wherein the vertical drain pipe comprises a drain pipe, a flange plate and an anchoring bolt, the drain pipe passes through the vertical drain port, the flange plate is fixed with the drain pipe, and the anchoring bolt fixes the flange plate on the bridge structure.
8. The bridge deck drainage system of the integral roadbed one-way cross slope bridge as claimed in claim 7, wherein the drainage pipe is a galvanized steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453058.2U CN212128844U (en) | 2019-12-26 | 2019-12-26 | Bridge deck drainage system of one-way cross slope bridge of integral road bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453058.2U CN212128844U (en) | 2019-12-26 | 2019-12-26 | Bridge deck drainage system of one-way cross slope bridge of integral road bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212128844U true CN212128844U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922453058.2U Active CN212128844U (en) | 2019-12-26 | 2019-12-26 | Bridge deck drainage system of one-way cross slope bridge of integral road bed |
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| Country | Link |
|---|---|
| CN (1) | CN212128844U (en) |
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- 2019-12-26 CN CN201922453058.2U patent/CN212128844U/en active Active
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Address after: No. 928, yuhangtang Road, Xihu District, Hangzhou City, Zhejiang Province 310012 Patentee after: Zhejiang shuzhijiaoyuan Technology Co.,Ltd. Address before: No. 928, yuhangtang Road, Xihu District, Hangzhou City, Zhejiang Province 310012 Patentee before: ZHEJIANG PROVINCIAL INSTITUTE OF COMMUNICATIONS PLANNING DESIGN & RESEARCH Co.,Ltd. |