摘要
拟静力试验由于几何缩尺比较大、可采用真实材料及可实现破坏性试验等优点而被广泛应用于地下结构抗震问题研究中。由于试验对象的不同,地下结构抗震拟静力试验可分为构件层面、结构层面及土-结构体系层面。列举了一些近年来开展的各层面下典型地下结构抗震拟静力试验,分析了各类拟静力试验的优缺点,探讨了地下结构抗震拟静力试验的发展趋势,介绍了弹簧-地下结构体系拟静力推覆试验方案,基于此方案开展了试验,并采用数值模拟手段初步验证了试验方法的有效性,总结了弹簧-地下结构体系拟静力推覆试验设计中的重、难点,为地下结构抗震拟静力试验的发展提供参考与借鉴。
Quasi-static test is widely used in seismic research of underground structures due to its large scale,real materials and failure simulation capacity.According to the test objects,quasi-static test of underground structure can be divided into the quasi-static test at component level,the quasi-static test at structural level and the quasi-static test at soil-structure system level.This paper listed some typical quasi-static tests on underground structures,analyzed the advantages and disadvantages of different types of quasi-static tests,discussed development trend of the quasi-static test for seismic research of underground structures,introduced a quasi-static pushover test scheme of spring-underground structure system,and carried out a test based on this test scheme.Numerical simulation method was used to verify the effectiveness of the new test method,and difficulties in designing quasi-static pushover test of spring-underground structure were summarized to provide references for development of quasistatic test of underground structures.
作者
杜修力
韩润波
许成顺
许紫刚
DU Xiuli;HAN Runbo;XU Chengshun;XU Zigang(Key Laboratory of Urban Security and Disaster Engineering of the Ministry of Education,Beijing University of Technology,Beijing 100124,China;Jiangxi Key Laboratory of Infrastructure Safety Control in Geotechnical Engineering,East China Jiaotong University,Nanchang 330013,China)
出处
《防灾减灾工程学报》
CSCD
北大核心
2021年第4期850-859,共10页
Journal of Disaster Prevention and Mitigation Engineering
基金
国家重点研发计划(2018YFC1504305)
国家自然科学基金创新研究群体项目(51421005)
教育部“创新团队发展计划”(IRT13044)资助
关键词
地下结构
拟静力试验
抗震性能
弹簧-地下结构体系
土-结构相互作用
underground structures
quasi-static test
seismic performance
spring-underground structure system
soil-structure interaction
作者简介
杜修力(1962—),男,教授,博导,博士。主要从事地震工程学研究。E-mail:duxiuli@bjut.edu.cn
