基于地震损失风险的建筑业态组合方案的优化设计方法  

Optimal Architectural Design of Commercial Buildings Based on Seismic Loss Risk

作　　者：王健泽 查军龙 戴靠山 廖光明 WANG Jianze;ZHA Junlong;DAI Kaoshan;LIAO Guangming(Department of Civil Engineering,Sichuan University,Chengdu 610065,Sichuan,China;Key Laboratory of Deep Earth Science and Engineering(Sichuan University),Mhustry of Education,Chengdu 610065,Sichuan,China;Failure Mechanics&Engineering Disaster Prevention and Mitigation,Key Laboratory of Sichuan Province,Chengdu 610065,Sichuan,China)

机构地区：[1]四川大学土木工程系,四川成都610065 [2]深地科学与工程教育部重点实验室,四川成都610065 [3]破坏力学与工程防灾减灾四川省重点实验室,四川成都610065

出　　处：《地震研究》2022年第4期641-652,共12页Journal of Seismological Research

基　　金：国家自然科学基金(51878426);四川省科研创新项目(2020JDGD0035);四川省自然科学基金(2022NSFC0988);中央高校基本科研业务费项目联合资助。

摘　　要：以一座9层钢支撑框架结构作为研究对象,采用新一代基于性能的抗震评价理论对其进行了地震损失风险分析,讨论了由商业办公、零售、酒店公寓3种不同主流业态的7个建筑组合方案的地震损失差异。同时,基于遗传算法提出考虑地震损失风险和决策者主观意愿的最优业态组合决策方法。结果表明:该建筑结构的倒塌风险较低,50年内倒塌概率约为0.64%。选择不同业态组合方案明显影响建筑地震损失,最大相对损失差距约为20%。Currently,most attentions was devoted to assessing seismic losses for newly-built or existing building structures with certain structural design schemes.Few studies were performed to take the seismic-loss estimation into account the architectural design of buildings especially for the architectural function arrangement.In this study,a nine-story,concentrically-braced frame structure was focused.The new generation of performance-based earthquake engineering theory was used to estimate seismic-loss risks.The differences in seismic-loss results for the considered seven building functional schemes that consist of commercial office,retail and apartment were discussed.Subsequently,an optimal decision approach based on the genetic algorithm was developed for determining architectural functions of buildings involving seismic-loss risk and the decision-maker’s initiative.The results show that the risk of the structure’s collapse in 50 years is as low as 0.64%.The selection of architectural function scheme of buildings has considerable effects on the economic losses under the seismic action.The largest relative difference can be up to 20%.

关 键 词：地震损失 业态组合 商业建筑 遗传算法 倒塌风险 

分 类 号：TU391[建筑科学—结构工程]