|Table of Contents|

Method and application of seismic risk probability analysis for large-long span bridge based on IDA-MC(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年03期
Page:
60-65
Research Field:
Publishing date:
2010-06-20

Info

Title:
Method and application of seismic risk probability analysis for large-long span bridge based on IDA-MC
Author(s):
FENG Qing-hai1;  YUAN Wan-cheng2
1. CCCC Highway Consultants Co Ltd, Beijing 100088, China; 2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China
Keywords:
bridge engineering;  seismic risk probability;  large-long span bridge;  IDA analysis;  MC analysis
PACS:
U445.75; TU352.1
DOI:
-
Abstract:
A method of seismic risk probability analysis for large-long span bridge based on incremental dynamic analysis(IDA)and Monte Carlo(MC)is presented, which takes the seismic hazard and seismic vulnerability into consideration synchronously, and avoids the complicated analytical solution. Firstly, seismic response of bridge is gained by IDA under plenty of seismic waves. Secondly, the distribution of earthquake intensity of the site is determined according the result of statistic. Then large number of earthquake intensity is generated by MC. Plenty of seismic response are gained according to the curve of seismic vulnerability and PGA transformed from the earthquake intensity. According to the seismic damage criterion, the seismic risk probability of bridge in different damage levels are gained. At the end, an example of floating cable-stayed bridge is analyzed, the analysis progress and results prove that this method is accurate and highly effective, and the results of risk analysis will be a technology support for the insure company whether and how it should be managed. 1 tab, 6 figs, 10 refs.

References:

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Memo

Memo:
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Last Update: 2010-06-20