CN218911117U

CN218911117U - Bridge floor drainage system

Info

Publication number: CN218911117U
Application number: CN202223015424.4U
Authority: CN
Inventors: 刘志华; 高建平; 曾晓斐; 邓剑; 李永安; 丘伟强; 潘家辉; 高翔; 张灿丽; 洪宇岚; 刘桂銮; 袁永傑
Original assignee: Guangdong Guanyue Highway and Bridge Co Ltd
Current assignee: Guangdong Guanyue Highway and Bridge Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-04-25
Anticipated expiration: 2032-11-11

Abstract

The utility model relates to a bridge deck drainage system. The bridge floor drainage system comprises a water collecting port, a broken stone blind ditch, a water drain pipe and a grating arranged at a water inlet of the water collecting port, wherein the grating is L-shaped overall. The utility model adopts the L-shaped grille, has higher installation stability, and effectively avoids the conditions of being washed away by rainwater and rolling and biasing of vehicles. Moreover, for two drain pipe setting forms, the L-shaped grille is applicable, so that a unified installation form can be adopted, and the grille is neat and uniform after installation, and is attractive and elegant. Meanwhile, the L-shaped design can effectively increase the water discharge section, and the advantages are particularly obvious when water completely goes through the water collecting port.

Description

Bridge floor drainage system

Technical Field

The utility model relates to the technical field of road and bridge structures, in particular to a bridge deck drainage system.

Background

On one hand, the device can prevent rainwater from stagnating on the bridge deck and even penetrating into the girder body to influence the durability of the bridge, and on the other hand, the device can also ensure that the bridge deck has enough friction coefficient to ensure the driving safety. In order to effectively solve the problem of bridge floor drainage, in addition to the drainage of the longitudinal and transverse slopes, a certain number of drainage pipelines are arranged on the bridge floor so as to form a complete drainage system.

Because bridge floor drainage and external water flow exchange can only finally enter the municipal drainage system under the bridge through the drainage pipeline arranged on the bridge floor, it is important to ensure the smoothness of the drainage pipeline. The main reason for the unsmooth sewer pipe is that sundries are blocked, and a grid is arranged at a water collecting port of the bridge deck to prevent large-particle sundries from entering the pipeline to cause the pipeline to be blocked.

Two types of drainage grids are arranged according to the form difference of the drainage pipes, one type of drainage grids are tiled on the bridge deck, and the other type of drainage grids are vertically attached to the anti-collision guardrail. Such non-uniform grid designs affect the overall aesthetics of the deck. Moreover, there is a problem that the drainage grids laid on the bridge floor are easily rolled and biased by vehicles, and the drainage grids vertically attached to the crash barrier are easily washed away by rainwater.

Disclosure of Invention

The present utility model has been made in view of the above problems, and it is an object of the present utility model to provide a deck drainage system which overcomes or at least partially solves the above problems.

The deck drainage system includes:

water collecting ports formed at the edges of the bridge deck and the guardrails;

gravel blind ditches which are arranged on the lower layer of the bridge deck along the guardrails in an extending way and are communicated with two adjacent water collecting ports;

the communicated water collecting port is used for draining rainwater to a drainage pipe under the bridge;

the grating is arranged at the water inlet of the water collecting port, is generally L-shaped, and comprises a grating main body which is horizontally arranged and a grating upper part which is connected with one side edge of the grating main body; the upper part of the grid is embedded in a first mounting groove formed at the edge of the guardrail, and the grid main body is embedded in a second mounting groove formed at the paving layer.

In one embodiment, the upper surface of the upper portion of the grille is flush with the upper surface of the deck.

In one embodiment, the grill is formed with drain holes penetrating both the grill body and the upper portion of the grill.

In one embodiment, the grid is a PE grid.

According to the bridge floor drainage system, the L-shaped grille is adopted, the mounting stability of the grille is higher, and the situation that the grille is washed away by rainwater and the rolling belt of a vehicle is biased is effectively avoided. Moreover, for two drain pipe setting forms, the L-shaped grille is applicable, so that a unified installation form can be adopted, and the grille is neat and uniform after installation, and is attractive and elegant. Meanwhile, the L-shaped design can effectively increase the water discharge section, and the advantages are particularly obvious when water completely goes through the water collecting port.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive faculty for a person skilled in the art. In the drawings:

FIG. 1 is a schematic diagram of a bridge deck drainage system according to an embodiment of the present utility model;

FIG. 2 is a schematic view of another construction of the deck drainage system of FIG. 1;

FIG. 3 is a perspective view of a grille;

FIG. 4 is another perspective view of the grille;

fig. 5 is a schematic structural diagram of a bridge deck drainage system according to another embodiment of the present utility model.

Reference numerals illustrate: 1. a water collecting port; 2. guard bars; 3. gravel blind ditches; 4. a drain pipe; 5. a grille; 6. a grill body; 7. the upper part of the grille; 8. and a drain hole.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary for the purpose of illustrating the present utility model and are not to be construed as limiting the present utility model, and various changes, modifications, substitutions and alterations may be made therein by one of ordinary skill in the art without departing from the spirit and scope of the present utility model as defined by the appended claims and their equivalents.

The terms "center," "longitudinal," "transverse," "length," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like in the description of the present utility model refer to an orientation or positional relationship as indicated on the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "comprise," "include," and any variations thereof, are intended to cover a non-exclusive inclusion.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A deck drainage system according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

Referring to fig. 1 to 2, a bridge deck drainage system according to an embodiment of the present utility model includes water collection ports 1 formed at edges of a bridge deck and a guardrail 2, the water collection ports 1 may be equidistantly distributed along an extending direction of the guardrail 2, and the number of the water collection ports 1 may be set according to a bridge length and a local descent amount, and the number of the water collection ports 1 is not limited in this embodiment.

The bridge floor drainage system further comprises gravel blind ditches 3 which are arranged on the lower layer of the bridge floor in an extending mode along the guardrails 2 and are communicated with two adjacent water collecting ports. The broken stone blind ditch 3 ensures the effective collection and removal of water between layers, thereby reducing the risk of water damage of a bridge deck pavement layer and prolonging the whole service life of the bridge.

The bridge floor drainage system further comprises a drainage pipe 4 which is communicated with the water collecting port 1 and used for draining rainwater to the position under the bridge, and after the bridge floor rainwater is collected at the water collecting port 1, the bridge floor rainwater can finally enter the municipal drainage system under the bridge through the drainage pipe 4. The drain pipe 4 is generally provided in two forms according to the drain space under the cantilever plate. For the portion below the cantilever plate where there is sufficient drainage space, the drain pipe 4 passes directly through the cantilever plate and is vertically downward, as shown in fig. 2. For the part without enough drainage space under the cantilever plate, the drain pipe 4 is parallel to the bridge deck, penetrates through the anti-collision guardrail 2, and the bottom of the drain pipe 4 is leveled with the integral cast-in-situ layer of the bridge deck, as shown in fig. 5.

The deck drainage system further comprises a grid 5 arranged at the water inlet of the water collecting opening 1. The grille 5 is generally L-shaped and comprises a horizontally arranged grille body 6, which grille body 6 is generally rectangular in this embodiment. The grille 5 further comprises a grille upper part 7 connected to one side edge of the grille body 6, which grille upper part 7 is also generally rectangular in this embodiment. The upper part 7 of the grille is embedded in a first mounting groove formed at the edge of the guardrail 2, and the main body 6 of the grille is embedded in a second mounting groove formed at the paving layer. The utility model adopts the L-shaped grid 5, which has higher installation stability, and effectively avoids the conditions of being washed away by rainwater and rolling and carrying out belt deflection by vehicles. Moreover, for the two drain pipe arrangement forms, the L-shaped grid 5 is applicable, so that a uniform installation form can be adopted, and the grid is neat and elegant after installation. Meanwhile, the L-shaped design can effectively increase the water discharge section, and the advantages are particularly obvious when water completely goes through the water collecting port 1.

Preferably, the upper surface of the upper grille part 7 is flush with the upper deck surface.

In the present embodiment, the grill 5 is formed with drain holes 8 penetrating both the grill body 6 and the grill upper portion 7, as shown in fig. 3 and 4, to more effectively increase the drain cross section.

In this embodiment, the grid 5 is a PE grid, that is, a grid 5 formed by injection molding PE (polyethylene). The conventional drain grating is made of steel bar welding or cast iron, has relatively large weight, and has the condition of rust erosion. The PE grille is adopted in the embodiment, the PE grille is light in weight, the same structure is only 1/8 of the weight of the traditional material (steel bar or cast iron), the manufacturing cost is lower, and the structural strength meets the design requirement. And the PE grille is corrosion-resistant, and compared with the traditional material, the PE grille is more excellent in corrosion resistance.

According to the bridge floor drainage system, the L-shaped grating is adopted, the mounting stability of the grating is higher, and the situation that the grating is washed away by rainwater and the rolling belt of a vehicle is biased is effectively avoided. Moreover, for two drain pipe setting forms, the L-shaped grille is applicable, so that a unified installation form can be adopted, and the grille is neat and uniform after installation, and is attractive and elegant. Meanwhile, the L-shaped design can effectively increase the water discharge section, and the advantages are particularly obvious when water completely goes through the water collecting port.

Claims

1. A deck drainage system, comprising:

2. The deck drainage system of claim 1, wherein: the upper surface of the upper part of the grille is flush with the upper surface of the bridge deck.

3. The deck drainage system according to claim 1 or 2, wherein: the grid is provided with drain holes which penetrate through the grid main body and the upper part of the grid at the same time.

4. A deck drainage system according to claim 3, wherein: the grid is a PE grid.