Vertical-drainage type water drain pipe for bridge and mounting method for straight-line water drain pipe

Abstract

The invention discloses a vertical-drainage type water drain pipe for a bridge and a mounting method for the straight-line water drain pipe. The water drain pipe comprises edge strips and a rubber ring, and further comprises wind boards, wherein the edge strips and the rubber ring can avoid that rainfall on the bridge deck infiltrates in reserved holes of a bridge body; the wind boards can avoid that the water drainage efficiency is reduced in strong-wind weather because the strong wind blows rainwater gathered in the vertical-drainage type water drain pipe and ponding scatters on the bridge deck again. The water drain pipe is simple in structure, convenient to mount, obvious in water drainage effect, and particularly suitable for regions which are high in rain capacity and high in wind speed and have natural freezing and thawing cycles.

Description

[0001] This application is submitted by the applicant Qingdao Linchuan Engineering Technology Consulting Co., Ltd. to the State Intellectual Property Office. A divisional application of the invention patent application for the method. technical field [0002] The invention relates to a straight discharge drain pipe for bridges and an installation method thereof, and is especially suitable for drainage of bridge decks in areas with large rainfall, high wind speed and natural freeze-thaw cycles. Background technique [0003] Existing bridge structures generally include concrete beams and asphalt concrete deck pavement arranged on top of the concrete beams. In order to quickly drain the rainwater on the bridge deck from the driving area, generally a bridge is installed at a certain distance on the lower edge of the bridge. The installation of the drain pipe and the drain pipe is mostly carried out after the bridge deck pavement is completed. [0004] The installation method of...

AI Technical Summary

Problems solved by technology

[0005] 1. In order to ensure the smooth installation of the drain pipe, the outer diameter of the drain pipe is often slightly smaller than the inner diameter of the reserved hole of the beam body, and there is still a certain gap between the two after the installation is completed; in addition, when the drain pipe is installed, the drain The bottom of the bell mouth of the water pipe is not tightly bonded to the mortar, resulting in a water seepage channel between the bottom of the bell mouth of the drain pipe and the top surface of the beam body, and the rainwater on the bridge surface will seep into the flange plate of the beam body through these gaps or channels The bottom, if things go on like this, will cause the concrete slurry near the drainpipe to peel off, the aggregates will be exposed, and the steel bars will be corroded. This phenomenon is especially serious in the area where the rainwater on the bridge deck is mixed with deicing salt

[0006] 2. Drain pipes are usually made of PVC or cast iron. With the prolongation of use time, PVC will gradually become brittle and pulverized, cast iron will continue to rust, and the effective section will gradually decrease. This will make the drain pipe and beam body reserved The gap between the holes gradually increases, and the amount of rainwater infiltrated into the beam flange plate will also increase

[0007] 3. For areas with high wind speed, the strong wind can blow up the rainwater that flows into the direct drainage pipe, and the rainwater will be scattered on the bridge deck again, reducing the drainage effect and driving safety

Images