河北水利电力学院学报2025，Vol.35Issue(4)：46-50,59,6.DOI:10.16046/j.cnki.issn2096-5680.2025.04.008
超限高层建筑深基坑支护承压结构抗震性能研究
Research on Seismic Performance of Deep Foundation Pit Support and Pressure Bearing Structures in High-rise Buildings Beyond Limit
摘要
Abstract
In order to study the seismic performance of the deep foundation pit support and pressure bearing structure of high-rise buildings under earthquake,a seismic test analysis was conducted on such bearing structure to achieve the optimal design of the deep founda-tion pit support and pressure bearing structure based on the test results.Based on a high-rise deep founda-tion pit construction project,test specimens were made and finite element numerical simulation software was used to establish a calculation model for the deep foundation pit support pressure bearing structure.Combined with seismic shaking table in simulation of the seismic environment,ductility,stiffness,and bearing capacity indicators that could reflect the seismic effect of the structure were calculated through in-putting seismic waves.Therefore,the seismic performance of the support structure was analyzed based on the test results.The experimental results indicated that the deeper the deep foundation pit,the higher the ductility of the structure and the better its seismic performance,the higher the elevation of the under-ground diaphragm wall of the deep foundation pit support pressure bearing structure,the greater the later-al stiffness of the foundation pit support,and the better the seismic effect.When the structural slope ratio was 0.8,the seismic performance of the structure was optimal.关键词
高层建筑/支护结构/试验分析/抗震性能Key words
high-rise buildings/supporting and pressure bearing structures/test analysis/seismic per-formance分类
建筑与水利引用本文复制引用
张延..超限高层建筑深基坑支护承压结构抗震性能研究[J].河北水利电力学院学报,2025,35(4):46-50,59,6.基金项目
安徽省2024年中青年教师培养行动项目(YQYB2024141) （YQYB2024141）
滁州职业技术学院重点科研项目(ZKZ-2024-6) （ZKZ-2024-6）
