Exploring Risk-Targeted Hazard Maps for Europe

被引:73
作者
Silva, Vitor [1 ,2 ]
Crowley, Helen [2 ]
Bazzurro, Paolo [3 ]
机构
[1] Univ Aveiro, Dept Civil Engn, Campus Santiago, P-3810 Aveiro, Portugal
[2] European Ctr Training & Res Earthquake Engn, EUCTR, I-27100 Pavia, Italy
[3] Univ Inst Super Studies, IUSS, I-27100 Pavia, Italy
关键词
SEISMIC HAZARD; PERFORMANCE; DESIGN; SAFETY;
D O I
10.1193/112514EQS198M
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
In Europe, the design of new structures according to modern regulations requires a uniform hazard spectrum for a given return period (e.g., 475 years). The assumption is that the resulting collapse probability is equally uniform for all structures, regardless of their structural properties or location. However, the uncertainty in the collapse capacity and hazard curves at different sites lead to an unequal level of risk. This discrepancy is undesirable given that some inhabitants will live in dwellings with a lower seismic safety than others living in structures designed according to the same regulation. The estimation of risk-targeted hazard maps allows for the definition of a design ground motion leading to a uniform level of risk. Using hundreds of fragility models developed for European buildings and hazard results from the SHARE project, we calculate risk-targeted hazard maps for a pre-established annual collapse probability.
引用
收藏
页码:1165 / 1186
页数:22
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