SEISMIC RISK ASSESSMENT OF REINFORCED CONCRETE BUILDINGS USING FUZZY RULE BASED MODELING
Seismic resiliency of new buildings has improved over the years due to improved seismic codes and design practices. However, vulnerability of seismically deficient older buildings, designed and built on the basis of older codes of practice, poses a significant threat to life safety and survivability of buildings. It is economically not feasible to retrofit the entire seismically deficient infrastructure. Therefore, there is need for a comprehensive plan to identify critical structures and prioritize their retrofit requirements. Risk-based seismic assessment approach is proposed for prioritizing buildings for retrofit. Risk-base prioritization incorporates engineering decision making aspects, such as damage estimation, and societal value, tolerance to the consequence of failure. This is done by integrating site seismic hazard, building vulnerability, and importance/exposure factors. The complexity of building vulnerability assessment is handled through a systems theory where the complex problem is managed through hierarchical structure. The vagueness uncertainty encountered as a result of subjective walk down survey is handled through a fuzzy set theory.Fuzzy rule based modeling is used to incorporate decision makers attitude and intuitive knowledge in the aggregation process. The proposed method is illustrated through the use of May 1, 2003 Bing?l Earthquake damage observations. Results of the proposed risk-base prioritization method show good correlation with observed damage, albeit extracted from limited data sets.
retrofit prioritization risk assessment building vulnerability fuzzy rule base
S. Tesfamariam M. Saatcioglu
Assistant Professor,School of Engineering,University of British Columbia Okanagan,Kelowna,British Co Professor and University Research Chair,University of Ottawa,Ottawa,Ontario Canada
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）