Bridge drainage structure
By installing multiple drainage outlets and inclined drainage pipe structures on the top of the bridge lanes, the problem of water retention on the bridge deck was solved, achieving rapid drainage and improved crack resistance.
Patent Information
- Application Number
- CN202422739793.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-11
AI Technical Summary
In existing bridge drainage systems, the drainage outlets are located on the side of the bridge deck, which leads to long periods of water retention and poor drainage performance. In particular, during rain, water cannot be drained from the bridge deck in a timely manner, posing a safety hazard.
Multiple first and second drainage outlets are installed on both sides of the top of each driving lane of the bridge, and several drainage pipes are connected by the upper and lower panel reinforcement. The drainage pipes are inclined to facilitate the rapid discharge of rainwater. Water is introduced into the drainage pipes in conjunction with the first and second water inlet pipes, and the drainage pipes pass through the side wall of the bridge to discharge.
It enables timely drainage of water in the middle of the bridge, reduces the time water remains in the water, improves drainage efficiency, and enhances the crack resistance of the drainage pipes through reinforced structure, reducing the risk of turbulence and blockage.
Smart Images
Figure CN223510263U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge drainage technology, and in particular to a bridge drainage structure. Background Technology
[0002] Bridges are generally constructed of concrete beams and an asphalt concrete deck on top of the concrete beams. Because the asphalt concrete deck has voids, rainwater can seep through it after rain, eroding the concrete beams underneath. Over time, this can pose a safety hazard to the bridge. Therefore, it is necessary to install drainage structures in bridges to ensure timely drainage during rain.
[0003] However, in current bridge deck drainage systems, the drainage outlets are located on the sides of the bridge deck. As a result, water on the bridge deck can only flow to the sides of the bridge deck before it can be discharged from the drainage outlets, which prolongs the time that water stays on the bridge and has a limited drainage effect. Utility Model Content
[0004] To address the problems of existing technologies, this utility model provides a bridge drainage structure, comprising:
[0005] Multiple first drainage outlets and multiple second drainage outlets are arranged along the vehicle travel direction on the inner and outer sides of the top of the two driving lanes of the bridge, respectively;
[0006] The reinforcement of both the upper and lower panels is installed inside the bridge deck for both driving lanes;
[0007] Several drainage pipes are connected between the upper panel reinforcement and the lower panel reinforcement;
[0008] Several first water inlet pipes, one end of which is connected to the first drain outlet, and the other end of which is connected to the end of the drain pipe facing the inside of the bridge;
[0009] Several second water inlet pipes, one end of which is connected to the second drain outlet, and the other end of which is connected to the end of the drain pipe facing the outside of the bridge;
[0010] The end of the drainage pipe facing outwards from the bridge penetrates the side wall of the bridge.
[0011] Furthermore, the drainage pipe is inclined downwards towards the outside of the bridge.
[0012] Furthermore, the inclination angle of the drain pipe is 10° to 30°.
[0013] Furthermore, the reinforcement of both the upper panel and the lower panel includes:
[0014] A plurality of longitudinal reinforcing bars and a plurality of transverse reinforcing bars, wherein the longitudinal reinforcing bars and the transverse reinforcing bars are connected perpendicularly.
[0015] Furthermore, both the first drain outlet and the second drain outlet are rectangular at the top and trapezoidal at the bottom, with the smaller end facing downwards.
[0016] Furthermore, both the first drain outlet and the second drain outlet are equipped with floor drain covers on top.
[0017] The beneficial effects of the technical solution provided by this utility model are as follows: In this utility model, multiple first drainage outlets and multiple second drainage outlets are respectively set on both sides of the top of each driving lane of the bridge. Several drainage pipes are set inside the bridge. The end of each drainage pipe facing the inner side of the bridge is connected to a first water inlet pipe, and the end of each drainage pipe facing the outer side of the bridge is connected to a second water inlet pipe. After rain, the water on the bridge surface will enter the first water inlet pipe and the second water inlet pipe through the first drainage outlet and the second drainage outlet respectively. The rainwater enters the drainage pipe through the first water inlet pipe and the second water inlet pipe and flows to the outer side of the bridge, so that the water in the middle of the bridge can also be discharged in time, reducing the time that water stays on the bridge body. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of a bridge provided by this utility model;
[0019] Figure 2 This is a schematic diagram of a bridge drainage structure provided by this utility model;
[0020] Figure 3 This is a structural schematic diagram of a top panel reinforcement or a bottom panel reinforcement provided by this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of a first drainage outlet provided by this utility model;
[0022] Figure 5 This is a partial cross-sectional schematic diagram of a bridge provided by this utility model.
[0023] Attached reference numerals: 1-First drain outlet; 2-Second drain outlet; 3-Upper panel reinforcement; 4-Lower panel reinforcement; 5-Drain pipe; 6-First water inlet pipe; 7-Second water inlet pipe; 8-Longitudinal reinforcement; 9-Transverse reinforcement; 10-Floor drain cover. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0026] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "bottom," "top," "left," and "right" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0027] It should also be noted that, in this embodiment, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0028] See Figures 1-5 A bridge drainage structure includes a bridge, the middle of which is divided into two driving lanes by a central divider (isolation pier, fixed concrete barrier or green belt), each driving lane having the drainage structure, the drainage structure including multiple first drainage outlets 1 and multiple second drainage outlets 2, respectively arranged on the top sides of each driving lane of the bridge along the direction of vehicle travel.
[0029] In addition, the drainage structure also includes: upper panel reinforcement 3 and lower panel reinforcement 4. Both upper panel reinforcement 3 and lower panel reinforcement 4 are composed of several longitudinal steel bars 8 and several transverse steel bars 9. The longitudinal steel bars 8 and transverse steel bars 9 are vertically tied together. The lower panel reinforcement 4 is first laid on the concrete slab inside the bridge deck. Several drainage pipes 5 are laid on top of the upper panel reinforcement 3. The upper panel reinforcement 3 is laid on top of the drainage pipes 5. The lower panel reinforcement 4 is tied to the drainage pipes 5, and the upper panel reinforcement 3 is tied to the drainage pipes 5. Each group has a corresponding first drainage outlet 1 and second drainage outlet 2. A drainage pipe 5 is installed between the bridge sections. Each drainage pipe 5 has a first inlet pipe 6 connected to its inner sidewall, and a second inlet pipe 7 connected to its outer sidewall. Concrete is then laid, with first drainage outlets 1 and 2 formed on both sides of the top of each lane. The other end of the first inlet pipe 6 connects to the corresponding first drainage outlet 1, and the other end of the second inlet pipe 7 connects to the corresponding second drainage outlet 2. Finally, asphalt concrete is laid on the upper surface of the concrete beam. The outer end of the drainage pipe 5 penetrates the sidewall of the bridge and has an opening, while the inner end is closed.
[0030] After rain, water on the bridge surface will enter the first inlet pipe 6 and the second inlet pipe 7 through the first drainage outlet 1 and the second drainage outlet 2 respectively. Rainwater will enter the drainage pipe 5 through the first inlet pipe 6 and the second inlet pipe 7 and flow to the outside of the bridge. By setting the first drainage outlet 1 and the second drainage outlet 2, water in the middle of the bridge can also be discharged in time, reducing the time that water stays on the bridge body. Furthermore, by setting the upper panel reinforcement 3 and the lower panel reinforcement 4, the crack resistance of the drainage pipe 5 is improved.
[0031] Furthermore, the drainage pipe 5 is inclined downwards towards the outside of the bridge, and the inclination angle of the drainage pipe 5 is 10° to 30°, so that rainwater can be discharged more quickly after entering the drainage pipe 5. The upper panel reinforcement 3 and the lower panel reinforcement 4 are also inclined according to the inclination angle of the drainage pipe 5.
[0032] Furthermore, both the first drain outlet 1 and the second drain outlet 2 are rectangular at the top and trapezoidal at the bottom, with the smaller end facing downwards. The smaller bottom end of the first drain outlet 1 is connected to the end of the first water inlet pipe 6, and the smaller bottom end of the second drain outlet 2 is connected to the end of the second water inlet pipe 7. Setting the ports of the first drain outlet 1 and the second drain outlet 2 to be larger than the first water inlet pipe 6 and the second water inlet pipe 7 can reduce the turbulence generated when water flows in, help stabilize the water flow, and reduce vibration in the pipe. In addition, a floor drain cover 10 is installed on the top of both the first drain outlet 1 and the second drain outlet 2 to reduce the risk of blockage.
[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A bridge drainage structure, characterized in that, include: Multiple first drainage outlets (1) and multiple second drainage outlets (2) are arranged along the vehicle travel direction on the inner and outer sides of the top of the two driving lanes of the bridge, respectively; The upper panel reinforcement (3) and the lower panel reinforcement (4) are both installed inside the bridge deck of the two driving lanes; Several drainage pipes (5) are connected between the upper panel reinforcement (3) and the lower panel reinforcement (4); Several first water inlet pipes (6) are connected at one end to the first drain outlet (1) and at the other end to the end of the drain pipe (5) facing the inside of the bridge. Several second water inlet pipes (7) are connected at one end to the second drain outlet (2) and at the other end to the end of the drain pipe (5) facing the outside of the bridge; The end of the drainage pipe (5) facing outwards from the bridge penetrates the side wall of the bridge.
2. The bridge drainage structure according to claim 1, characterized in that, The drainage pipe (5) is inclined downwards towards the outside of the bridge.
3. The bridge drainage structure according to claim 2, characterized in that, The inclination angle of the drain pipe (5) is 10° to 30°.
4. The bridge drainage structure according to claim 1, characterized in that, The upper panel reinforcement (3) and the lower panel reinforcement (4) both include: A plurality of longitudinal reinforcing bars (8) and a plurality of transverse reinforcing bars (9) are connected perpendicularly.
5. The bridge drainage structure according to claim 1, characterized in that, Both the first drain outlet (1) and the second drain outlet (2) are rectangular at the top and trapezoidal at the bottom, with the smaller end facing down.
6. The bridge drainage structure according to claim 5, characterized in that, Both the first drain outlet (1) and the second drain outlet (2) are equipped with floor drain covers (10).