Steerable prefabricated FRP anti-collision guardrail or prestress concrete bridge

Abstract

A steerable prefabricated FRP anti-collision guardrail for a prestress concrete bridge comprises a prefabricated FRP anti-collision shell component. The prefabricated FRP anti-collision shell component is a hollow shell defined by an upper shell, an outer side shell, an inner side shell and a bottom shell. The bottom of the prefabricated FRP anti-collision shell component is filled with a concretebase. The prefabricated FRP anti-collision shell component is fastened and connected to a bridge. The outer side of the concrete base is provided with a reserved position for installing a steering roller. The steering roller is connected to the reserved position of the base through an axle. Constructional steel bars, vertical steel bars and W-shaped low-yield-point steel plates are arranged in the prefabricated FRP anti-collision shell component. A gap in the prefabricated FRP anti-collision shell component is filled with a filling material. The colliding and climbing energy converting mode of the concrete wall type guardrail is kept, meanwhile multiplex buffering is performed in the guardrail, a vehicle is guided to change the collision angle during collision, the damage to the vehicle is relieved, and the construction progress is accelerated by prefabricating the component.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a steerable prefabricated FRP anti-collision barrier applied to prestressed concrete bridges. Background technique [0002] In recent years, with the rapid development of highways and bridges in our country, the number of vehicles is increasing day by day, the incidence of traffic accidents is getting higher and higher, and traffic safety has been paid more and more attention by people. Therefore, it is of great significance to choose the appropriate road guardrail and make it fully play its role to protect the occupants and reduce the number of accident casualties. Bridge guardrail refers to the guardrail set on the bridge to protect personal safety and equipment and facilities. Its purpose is to prevent out-of-control vehicles from getting out of the bridge. Features. According to the structural features, it can be divided into beam-column (metal and concrete) guar...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a turnable prefabricated FRP anti-collision barrier applied to prestressed concrete bridges, use new materials to improve the defect of excessive concrete weight, and retain the energy conversion of concrete wall guardrails for collision and climbing At the same time, multiple buffers are set inside the guardrail and the vehicle is guided to change the collision angle during the collision to reduce the damage to the vehicle, and the components are prefabricated to speed up the construction progress

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