大跨空间结构隔震研究进展  

State-of-the-art on seismic isolation of long-span spatial structures

作　　者：丁阳[1,2] 董宇乔 石运东 李忠献[1,2] 聂长承[1] Ding Yang;Dong Yuqiao;Shi Yundong;Li Zhongxian;Nie Changcheng(School of Civil Engineering,Tianjin University,Tianjin 300354,China;Key Laboratory of Coastal Civil Engineering Structure and Safety of the Ministry of Education,Tianjin University,Tianjin 300354,China)

机构地区：[1]天津大学建筑工程学院,天津300354 [2]天津大学滨海土木工程结构与安全教育部重点实验室,天津300354

出　　处：《东南大学学报（自然科学版）》2023年第5期857-868,共12页Journal of Southeast University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51978463,52178497);国家重点研发计划资助项目(2018YFC1504304)。

摘　　要：为了充分掌握大跨空间结构隔震研究的发展现状,系统总结了大跨空间结构水平和三维隔震支座、隔震性能和隔震模型振动台试验的相关研究,并进一步介绍了隔震技术在大跨空间结构工程中的应用.最后,从三维隔震支座、水平和三维隔震结构隔震性能以及隔震设计方法等方面,给出了大跨空间结构隔震领域需要进一步探索的问题.结果表明:由于大跨空间结构为竖向地震敏感结构,对大跨空间结构的隔震研究已经从水平隔震发展为三维隔震;三维隔震支座存在竖向承载力需求与隔震柔性需求的矛盾,是三维隔震研究的关键问题,且对于竖向柔性的大跨空间结构该问题尤为突出;水平/三维隔震后大跨空间结构的水平/三维地震作用可降低60%以上.To fully grasp the development situation of research on seismic isolation of long-span spatial structures,the research related to horizontal and three-dimensional isolators,isolation performance and shaking table tests on isolated models of long-span spatial structures was systematically summarized,and the application of seismic isolation technology in long-span spatial structure projects was further introduced.Finally,several problems in seismic isolation of long-span spatial structures that require further exploration were raised in terms of three-dimensional isolators,horizontal and three-dimensional isolation performance of the isolated structures and seismic isolation design methods.The results show that the research of seismic isolation of long-span spatial structures has developed from horizontal isolation to three-dimensional isolation due to the fact that long-span spatial structures are sensitive to vertical earthquakes.Three-dimensional isolators have a conflict between the demand for vertical bearing capacity and the demand for vertical flexibility,which is the key issue in the study of three-dimensional isolation.This issue is particularly salient for long-span spatial structures which are vertically flexible.The horizontal or three-dimensional seismic effects of long-span spatial structures can decline by more than 60%after horizontal or three-dimensional isolation.

关 键 词：大跨空间结构 隔震性能 隔震支座 水平隔震 三维隔震 振动台试验 

分 类 号：TU393.3[建筑科学—结构工程] TU352.12