Uniform-risk-targeted seismic design for collapse safety of building structures

作     者：SHI Wei LU XinZheng YE LiePing 

作者机构：Key Laboratory of Civil Engineering Safety and Durability of Education MinistryDepartment of Civil EngineeringTsinghua UniversityBeijing 100084China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2012年第55卷第6期

页      面：1481-1488页

核心收录：

学科分类：081405[工学-防灾减灾工程及防护工程] 08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 90815025,51178249) the Tsinghua University Research Funds (Grant Nos. 2010THZ02-1,2010Z01001) the Program for New Century Excellent Talents in University (Grant No. NCET-10-0528) 

主　　题：building structure collapse safety collapse resistant capacity seismic hazard uniform-risk-targeted seismic design 

摘      要：Seismic design should quantitatively evaluate and control the risk of earthquake-induced collapse that a building structure may experience during its design service life. This requires taking into consideration both the collapse resistant capacity of the building and the earthquake ground motion demand. The fundamental concept of uniform-risk-targeted seismic design and its relevant assessment process are presented in this paper. The risks of earthquake-induced collapse for buildings located in three seismic regions with the same prescribed seismic fortification intensity but different actual seismic hazards are analyzed to il- lustrate the engineering significance of uniform-risk-targeted seismic design. The results show that with China＇s current seis- mic design method, the risk of earthquake-induced collapse of buildings varies greatly from site to site. Additional research is needed to further develop and implement the uniform-risk-targeted seismic design aoDroach oronnsed in thi~ nnner