考虑场地-城市效应的复杂相互作用体系地震响应研究进展  

Research progress on seismic response of complex interaction system considering site-city effect

作　　者：王国波 巴峰 王垚 谢伟平[2] WANG Guobo;BA Feng;WANG Yao;XIE Weiping(College of Architecture and Civil Engineering,Wenzhou University,Wenzhou 325035,China;School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]温州大学建筑工程学院,浙江温州325035 [2]武汉理工大学土木工程与建筑学院,湖北武汉430070

出　　处：《自然灾害学报》2022年第3期1-14,共14页Journal of Natural Disasters

基　　金：国家自然科学基金项目(51878529,51678465,52078386)。

摘　　要：随着土-结构相互作用和结构-土-结构相互作用研究的不断深入,城市中密集分布建筑之间及其与复杂场地环境之间在地震时的相互作用效应也引起了广泛关注。目前在常规的地震响应分析中忽略城市建筑群之间及其与复杂场地之间相互作用的分析方法存在明显的局限性。论文首先描述了场地-城市效应的由来,然后按分析模型、研究方法、影响因素、评价方法及指标四部分分别总结归纳了场地-城市效应的研究现状和进展。已有研究表明:场地-城市效应能显著改变场地土的地震动特性,从而进一步影响城市密集结构的地震响应,其影响不容忽视,其中场地-城市效应主要受到城市密度、结构动力特性和分布形式、土-结构刚度比等因素的影响;而针对材料非线性、地震动空间效应以及考虑地下结构影响的场地-城市效应的研究相对较少。最后建议了相关的可进一步深入研究的方向。With the deepening of the research on soil‐structure interaction(SSI)and structure‐soil‐structure inter‐action(SSSI),the interaction effect between densely distributed buildings in cities and their interaction with com‐plex site environment has also attracted widespread attention.There are some limitations in ignoring urban build‐ings in seismic response analysis.This paper first describes the origin and basis of the site‐city effect,and then summarizes the research status and progress of the site‐city effect according to the analysis model,research meth‐ods,evaluation methods and indicators,and influencing factors.Existing studies have shown that site‐city effect can significantly change the ground motion characteristics of site soil,thus further affecting the seismic response of urban dense structures,and its influence can not be ignored.The site‐city effect is mainly affected by urban densi‐ty,structural dynamic characteristics and distribution form,and soil‐structure stiffness ratio.However,there are relatively few studies on material nonlinearity,seismic spatial effect and site‐city effect considering underground structures.Finally,the relevant directions for further research are proposed.

关 键 词：场地-城市相互作用 土-结构相互作用 结构-土-结构相互作用 地震响应 城市地震学 

分 类 号：TU352[建筑科学—结构工程] TU431