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Bridge safety assessment method and system

A safety and bridge technology, applied in the field of bridge safety evaluation, can solve the problems of low accuracy and low efficiency of bridge seismic safety evaluation, and achieve the effect of solving evaluation accuracy problems, improving efficiency, and solving evaluation efficiency problems.

Active Publication Date: 2017-05-31
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a bridge safety assessment method and system, which overcomes the problems of low precision and low efficiency of bridge seismic safety assessment by traditional methods

Method used

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  • Bridge safety assessment method and system
  • Bridge safety assessment method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Embodiment one of bridge safety assessment method of the present invention comprises the following steps:

[0069] Step S1: Obtain the earthquake damage index;

[0070] Step S2: Determine the seismic damage assessment result of the bridge according to the seismic damage index.

[0071] Step S3: Determine the damage state of key components according to the earthquake damage assessment result.

[0072] Step S4: Determine the structural damage state of the single bridge according to the damage states of all the key components.

[0073] A bridge safety assessment system of the present invention also includes the following steps:

[0074] Step S5: Transform the structural damage state of the individual bridges into the safety assessment of the same type of group bridges by using the group correction method.

[0075] The following is a detailed introduction to each step:

[0076] Step S1 and Step S2 are the first stage of rapid assessment.

[0077] Step S1: Obtain the ea...

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Abstract

The invention discloses a bridge safety assessment method and system. The method includes the steps that the seismic damage index is firstly obtained; s seismic damage assessment result of a bridge is determined according to the seismic damage index; then the damage state of key components of the bridge is determined according to the seismic damage assessment result; finally, according to the damage state of all the key components, the structural damage state of the single bridge is determined. This method realizes double assessments, solves the problem about assessment accuracy, and also effectively solves the problem about assessment efficiency. In addition, by using a group correction method, the safety assessment of the structural damage state of the single bridge is transformed into that of bridge groups of the same type, and efficiency of the bridge assessment is thus improved.

Description

technical field [0001] The invention relates to the field of bridge safety diagnosis, in particular to a bridge safety evaluation method and system. Background technique [0002] Transportation infrastructure is an important lifeline project to maintain the production and life of modern society, and bridges are the core facilities of the transportation system. The earthquake damage of destructive earthquakes at home and abroad has repeatedly shown that bridges show great vulnerability during earthquakes, and are easily damaged or invalidated. It can be seen that most of the bridges damaged and collapsed in the earthquake are old bridges that have been in service for many years, and they have become a very weak link in earthquake resistance and disaster reduction. On the one hand, post-earthquake bridges and other transportation infrastructure are responsible for extremely important earthquake emergency functions. The actual safety of post-earthquake bridges, what is the sta...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/13G06F30/23
Inventor 孙广俊章世祥李鸿晶刘成才姜保宋吴炳延刘同康
Owner NANJING UNIV OF TECH
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