Bridge transverse drainage combination device
By installing supporting columns and drainage components, including prefabricated collection wells and spring steel pipes, at the bottom of the bridge, a seepage channel is formed, which solves the problems of large catchment area and deep water accumulation in traditional bridge drainage systems, and achieves safe and efficient bridge drainage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR EIGHTH ENG BUREAU TECH CONSTR CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
In traditional bridge drainage systems, improper layout of drainage outlets leads to excessively large catchment areas and insufficient drainage slopes, resulting in deep water accumulation that affects the safety of vehicles and pedestrians.
A horizontal drainage system is adopted, including supporting columns, concrete paving layer, prefabricated collection well, spring steel pipe and downpipe, forming an effective seepage and drainage channel. Accumulated water is discharged in time through the prefabricated collection well, and a filter screen is used to prevent clogging.
It effectively reduces the bridge's catchment area, avoids water accumulation, reduces construction difficulty, ensures traffic safety, and reasonably controls the spacing between water collection wells to improve drainage.
Smart Images

Figure CN224531442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge drainage technology, and in particular to a combined device for transverse drainage of bridges. Background Technology
[0002] Bridge drainage systems are key facilities for ensuring the structural safety and traffic safety of bridges. Their main purpose is to quickly drain rainwater from the bridge surface to prevent water accumulation from affecting traffic safety. Secondly, they reduce water infiltration to protect the bridge structure from water damage. At the same time, they can collect bridge surface runoff that may contain pollutants to prevent it from being directly discharged into natural water bodies.
[0003] However, traditional bridge drainage systems have the following problems:
[0004] First, the drainage outlets are not arranged properly. Usually, the distance between adjacent drainage outlets is too large, resulting in an excessively large catchment area.
[0005] Secondly, insufficient drainage slope leads to water accumulation, especially on curved bridge sections and where the longitudinal slope changes, where the water depth is relatively deep, which can easily affect passing vehicles and pedestrians.
[0006] Based on this, the present invention proposes a transverse drainage combination device for bridges to solve the above problems. Utility Model Content
[0007] To address the aforementioned technical problems, this utility model proposes a transverse drainage combination device suitable for bridges, which can effectively reduce the catchment area of bridges and prevent large-scale water accumulation.
[0008] The technical solution to achieve the purpose of this utility model is: a combined transverse drainage device for bridges, comprising multiple supporting columns that are fixedly installed at the bottom of the bridge, the surface of the bridge being covered with a concrete pavement layer, and also including drainage components.
[0009] The drainage components are installed on the concrete pavement layer.
[0010] The drainage assembly includes prefabricated water collection wells fixedly installed near both sides of the concrete pavement layer. Each end of the prefabricated water collection well is fixedly penetrated by a spring steel pipe, and two adjacent prefabricated water collection wells are fixedly connected by a spring steel pipe.
[0011] In some embodiments, a downpipe is fixedly installed at the bottom of the finished water collection well, and a filter screen is fixedly installed at the end of the downpipe. Through holes adapted to the downpipe are opened on both the bridge and the concrete pavement layer.
[0012] In some embodiments, an asphalt pavement layer is poured together between the concrete pavement layer, spring steel pipe one, spring steel pipe two, and the finished water collection well.
[0013] Compared with existing technologies, the significant advantages of this invention are:
[0014] Firstly, this utility model effectively drains water from bridges by using horizontal and vertical spring steel pipes. The prefabricated water collection wells effectively drain accumulated water, thus preventing water accumulation on bridges due to excessively large drainage outlet spacing, which could affect the safety of passing vehicles and pedestrians.
[0015] Secondly, this utility model greatly reduces the difficulty of construction by pre-setting spring steel pipes, and at the same time can reasonably control the spacing of the finished water collection wells, thereby greatly improving the drainage effect of the bridge.
[0016] This solution addresses the problems of traditional bridge drainage systems, such as unreasonable drainage outlet layout, excessively large spacing between adjacent outlets leading to an excessively large catchment area, and insufficient drainage slope causing water accumulation, especially in curved bridge sections and areas with changes in longitudinal slope, where the water depth is relatively deep and can easily affect passing vehicles and pedestrians. Attached Figure Description
[0017] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided by this utility model;
[0019] Figure 2 This is a schematic diagram of the overall internal structure provided by this utility model;
[0020] Figure 3 This is a schematic diagram of the overall and partial emergency structure provided by this utility model;
[0021] Figure 4 This is a schematic diagram of the finished water collection well structure provided by this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Bridge; 2. Supporting columns; 3. Concrete pavement layer; 4. Asphalt pavement layer; 5. Spring steel pipe one; 6. Spring steel pipe two; 7. Finished water collection well; 8. Downpipe; 9. Filter screen. Detailed Implementation
[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.
[0025] This utility model provides an improved transverse drainage combination device for bridges. The technical solution of this utility model is as follows:
[0026] like Figures 1-4 As shown, a transverse drainage combination device for bridges includes multiple support columns 2 that are fixedly installed at the bottom of the bridge 1. The surface of the bridge 1 is covered with a concrete pavement layer 3. The device also includes drainage components. The drainage components can effectively drain water from the bridge surface and prevent water accumulation.
[0027] The drainage components are installed on the concrete pavement layer 3.
[0028] The drainage system includes prefabricated water collection wells 7 fixedly installed on both sides of the concrete pavement layer 3. Spring steel pipes 5 are fixedly inserted through both ends of the prefabricated water collection wells 7. A spring steel pipe 6 is fixedly connected between two adjacent prefabricated water collection wells 7. The spring steel pipes 5 and 6 form a drainage channel for bridge deck seepage, reducing water accumulation on the bridge. The prefabricated water collection wells 7 can drain the accumulated water in a timely manner, thus ensuring that the bridge deck does not accumulate water.
[0029] Furthermore, a downpipe 8 is fixedly installed at the bottom of the finished water collection well 7, and a filter screen 9 is fixedly installed at the end of the downpipe 8. Through holes adapted to the downpipe 8 are opened on both the bridge 1 and the concrete pavement layer 3. The downpipe 8 can quickly drain the accumulated water from the bridge surface, while the filter screen 9 can filter out larger impurities to prevent them from clogging the downpipe 8 and affecting normal drainage.
[0030] Furthermore, an asphalt pavement layer 4 is poured between the concrete pavement layer 3, the spring steel pipe 5, the spring steel pipe 6, and the finished water collection well 7. The asphalt pavement layer 4 not only facilitates normal driving but also provides a certain degree of protection for the spring steel pipe, thereby ensuring the normal operation of the drainage components.
[0031] The specific working method is as follows: First, after the concrete pavement layer 3 is laid, spring steel pipe 5 and spring steel pipe 6 are laid according to the pre-set positions. At the location where the prefabricated water collection well 7 is set, the prefabricated water collection well 7 is cut according to its structural size and installed. Spring steel pipe 5 and spring steel pipe 6 are then introduced into the interior of the prefabricated water collection well 7. After the drainage components are installed, the asphalt pavement layer 4 is laid. At this point, the entire transverse drainage device is installed.
[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.
Claims
1. A transverse drainage assembly for bridges, comprising multiple supporting columns (2) fixedly installed at the bottom of a bridge (1), characterized in that: The surface of the bridge (1) is covered with a concrete pavement layer (3), and also includes; A drainage assembly is disposed on the concrete pavement layer (3); The drainage assembly includes prefabricated water collection wells (7) fixedly installed on both sides of the concrete pavement layer (3). Both ends of the prefabricated water collection wells (7) are fixedly penetrated by spring steel pipes (5), and two adjacent prefabricated water collection wells (7) are fixedly connected by spring steel pipes (6).
2. The transverse drainage combination device for bridges according to claim 1, characterized in that: The bottom of the finished water collection well (7) is fixedly installed with a downpipe (8), and the end of the downpipe (8) is fixedly installed with a filter screen (9). The bridge (1) and the concrete pavement layer (3) are both provided with through holes that are compatible with the downpipe (8).
3. A transverse drainage combination device for bridges according to any one of claims 1-2, characterized in that: An asphalt pavement layer (4) is poured between the concrete pavement layer (3), spring steel pipe one (5), spring steel pipe two (6), and the finished water collection well (7).