Segmental assembling bridge bridge floor longitudinal integrated water collection and drainage system

Abstract

The invention discloses a segmental assembling bridge bridge floor longitudinal integrated water collection and drainage system. The slope of a bridge floor in the transverse whole course direction isunified, a water collection structure is arranged along an anti-collision wall on the side in the low position of the bridge floor, and the water collection structure is arranged in the whole coursealong the direction of a bridge. The water collection structure comprises water collection boxes arranged on the bridge floor, one side of each water collection box is connected with the anti-collision wall, the side wall, connected with the anti-collision wall, of each water collection box is a non-water-permeable side wall, and other parts of the side walls of each water collection box are waterpermeable side walls. The water collection boxes are fixedly connected with water outflow pipes downwards, the water outflow pipes are connected with drain pipes, a buried water circulating belt is arranged between the water permeable side walls of every two adjacent water collection boxes along the direction of the bridge, the lower end of each buried water circulating belt is connected with theupper surface of a beam body, and the upper surface of each buried water circulating belt is provided with a pitch surface layer. Each buried water circulating belt is made of a water permeable material. A water drainage structure comprises water collection wells and rainwater cellar wells, Water is collected at the overall length in the longitudinal direction of the bridge through the buried water circulating belts, bridge floor sundries are filtered through the pitch surface layers, and blockage is prevented.

Description

technical field [0001] The invention relates to the technical field of bridge construction. Background technique [0002] With the development of society, various infrastructure constructions in our country are becoming more and more perfect, and a large number of bridges, such as viaducts, are under construction every year. [0003] In bridge construction, box girder has been widely used because of its fast construction speed, prefabrication and cast-in-place, and wide application range. The asphalt surface layer is paved on the surface of the box girder as the bridge deck. The bridge deck at each pier column of the bridge is equipped with a water collection well, and the water collection well is connected downward with a drainage pipe. The drainage pipe directly discharges the bridge deck rainwater collected by the water collection well into the rainwater cellar well connected to the municipal pipe network through the buried pipeline. . [0004] The existing long box gi...

AI Technical Summary

Problems solved by technology

[0010] Since there is no vertical water collection belt and no concave treatment is made on the position of the water collection tank and the bridge deck, the water leaking from the asphalt surface layer of the bridge deck cannot be treated, and it has been stored on the top of the bridge deck, especially the water around the water collection tank. Severe, exacerbated bridge seepage and asphalt surface damage

[0011] In short, the existing bridge cannot avoid the phenomenon that the bridge deck structure between adjacent water collection and drainage structures and around the water collection tank is damaged by water immersion

[0012] 2. Unable to solve the blockage problem of the water collection and drainage structure

[0013] The airflow easily blows the debris above the road surface, but after the debris enters the structure below the road surface, the airflow at the road surface cannot reach the debris or can only blow the debris to expose a small part of the road surface, and the debris still remains. It is stuck by the structure below the road surface. After a long time, more debris will accumulate in the water collection structure, forming a blockage. Manual cleaning is required to restore the normal water collection and drainage function. On the one hand, it increases the maintenance workload of the bridge. , on the other hand, during the blockage period, it will aggravate the phenomenon of bridge deck being soaked in water and shorten the service life of the bridge deck

[0014] In the water collection and drainage structure, the drainage pipe is easy to block and fall off

Because the collection and drainage structure does not have the ability to automatically flush the silt in the water collection tank, the silt directly enters the drainage pipe attached to the bottom of the bridge body, and the drainage pipe is mostly connected with the bridge body by rivets using PVC pipes. The load-bearing capacity is relatively poor, so once there is silt congestion, the water storage in the pipeline will increase, causing the pipeline to fall off

[0015] 3. The rainwater on the bridge deck is directly discharged into the rainwater cellar well connected to the municipal pipe network through the buried pipeline. The green belt under the bridge has no chance to absorb rainwater, and the green belt needs to be watered additionally, increasing the water demand of the green belt. Meet the requirements of building a sponge city

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