Urban bridge operation management safety evaluation method

Abstract

The invention discloses an urban bridge operation management safety evaluation method, which comprises the following steps: acquiring bridge basic information, and scoring the bridge basic information to obtain a plurality of safety indexes; obtaining a plurality of first-level risk index weights, a plurality of second-level risk index weights and a plurality of third-level risk index weights through an analytic hierarchy process; and based on the plurality of safety indexes, the plurality of first-level risk index weights, the plurality of second-level risk index weights and the plurality of third-level risk index weights, calculating to obtain the safety index of the urban bridge. According to the method, the current urban bridge operation safety condition can be clearly and visually mastered, so that the safety, reliability, high efficiency and smoothness of the bridge are ensured, and the method has the characteristics of specialty, high accuracy, more comprehensive evaluation angle, low detection cost and short detection period, is not easily influenced by human factors, and is more scientific in evaluation mode.

Description

technical field [0001] The invention relates to the technical field of urban bridge safety management and risk assessment, in particular to a safety assessment method for urban bridge operation management. Background technique [0002] Urban bridges are an important part of the transportation network in modern society. They can not only reduce urban congestion and improve traffic efficiency, but also have very important social significance. But on the other hand, urban bridges are also under tremendous traffic pressure. Many large and medium-sized urban bridges have been overloaded for a long time. The coupling and superposition of unfavorable factors such as deformation and sudden traffic accidents make urban bridges very prone to structural damage, aging, local damage, etc., and even serious safety accidents, which greatly damage national property and people's lives. [0003] In recent years, the frequent occurrence of urban bridge safety accidents has sounded the alarm f...

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Problems solved by technology

[0004] At present, there are few researches on the safety management of urban bridge operation. The inspection and evaluation of most urban bridges in the operation process mainly rely on manual inspection and judgment, or entrust a qualified third-party organization to conduct professional inspection.

Although the former can detect problems in time, it is poor in professionalism, accuracy and comprehensiveness, and is also easily affected by human factors. The evaluation method is unscientific, and it is difficult to comprehensively evaluate the overall safety of the bridge.

Although the latter has higher authority, but the detection cost is high and the cycle is long

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