a bridge guardrail

Abstract

The invention discloses a bridge guardrail, which belongs to the technical field of bridge protection, and comprises a plurality of protective barrels arranged at intervals along the longitudinal direction of the bridge. Railings, the lower end of each rotating central axis is connected to a plate, and the support plate is connected to the main beam of the bridge through a buffer assembly; the protective railing includes several railing connecting blocks and elastic pull ropes, A through hole is provided for passing the elastic stay cord, and several railing connecting blocks are sequentially connected in series along the longitudinal direction of the bridge through the elastic stay cord. The device of the present invention can simultaneously perform energy consumption buffering on the accident vehicle in the lateral direction of the bridge when encountering the impact of the vehicle, reduce the impact force on the protective barrel and its rotating central axis, and cooperate with the rotating protective barrel to prevent the vehicle from The occurrence of a bigger accident caused by rushing out of the guardrail.

Description

technical field [0001] The invention belongs to the technical field of bridge protection, in particular to a bridge guardrail. Background technique [0002] Bridges generally refer to structures erected on rivers, lakes and seas to enable vehicles and pedestrians to pass smoothly. In order to adapt to the modern and fast-developing transportation industry, bridges are also extended to bridges over mountain streams, unfavorable geology or other traffic needs to be erected to make traffic more convenient. There are usually guardrails on both sides of the bridge to prevent vehicles or pedestrians from falling off the bridge. In order to prevent the impact of the accident vehicle, the existing bridges are often equipped with protective barrels at the guardrail. The rotation of the protective barrel can change the trajectory of the vehicle to prevent the vehicle from rushing out of the guardrail. However, the disadvantage of this method is that , When the protective barrel is s...

AI Technical Summary

Problems solved by technology

In order to prevent the impact of accident vehicles, the existing bridges are often equipped with protective barrels at the guardrails. The trajectory of the vehicles is changed through the rotation and guidance of the protective barrels to prevent the vehicles from rushing out of the guardrails. However, the design of this method is insufficient. , when the protective barrel is subjected to an instantaneous impact, the impact force is mostly along the radial direction of the protective barrel, and the force cannot be transmitted to the circumferential direction of the protective barrel in time. Damaged, resulting in the failure of the protective barrel, unable to achieve the proper protective effect

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