Novel bridge protecting facility

Abstract

The invention discloses a novel bridge protecting facility which comprises guardrails, guardrail struts, ground wrappers and a plurality of parallel prefabricated steel beam members connected with the ground wrappers, wherein the prefabricated steel beam members comprise top plates and bottom plates; a plurality of stiffening plates are welded between the top plates and the bottom plates; web plates are welded on the outer sides of the stiffening plates located at the two ends of the outermost side respectively; two limiting steel plates are welded below each bottom plate; locating steel plates are welded on the two sides of the width directions of the top plates and the bottom plates; and a prefabricated concrete cover plate is arranged between every two adjacent prefabricated steel beam members. The protecting facility can effectively reduce the influence on the existing traffic operation condition under a bridge during a construction work, and is easy to anchor and mount, and good in stability; in addition, the prefabricated concrete cover plates can tightly combine the prefabricated steel beam members into a whole, so that falling of an article from the bridge can be avoided; and the construction safety and traffic safety under the bridge are ensured.

Description

technical field [0001] The invention relates to a bridge protection facility, in particular to an anti-collision and anti-falling object facility for crossing the central divider of a bridge above a key structure (railway, highway). Background technique [0002] In recent years, with the development of my country's highway transportation, the capacity of expressways built in the early days has become increasingly saturated, and the service level has gradually decreased. Some expressways with four lanes can no longer meet the increasing demand of traffic volume. Therefore, they have been rebuilt and expanded. Four lanes are widened to six or eight lanes, and improving its traffic capacity has become a top priority. Bridges account for a large proportion of modern expressways, and bridge widening has the characteristics of complex technology, high difficulty in implementation, and great impact on current traffic. Therefore, bridge widening and reconstruction have become the foc...

AI Technical Summary

Problems solved by technology

[0004] During engineering construction, there are often many key structures (such as railways) that cross key structures. Anti-collision protection must be installed at all key structures. The length of each protection is basically more than 30 meters. If the overall demolition method is adopted, the construction It is very difficult, and safety protection is also difficult to guarantee. Therefore, in order to ensure the safety of traffic conditions under the bridge, it is necessary to take corresponding anti-collision and protective measures

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