结构工程师2018，Vol.34Issue(2)：134-144,11.
地下结构抗震设计和分析的反应剪力法
Response Shear Stress Method for Seismic Design and Analysis of Underground Structures
摘要
Abstract
The response displacement method is widely used for seismic design and analysis of underground structures,however,it has several shortages and limitations as a simplified method.Based on the basic principles of the response displacement method,a novel calculation method,named response shear stress method,is proposed with the soil-structure model in this paper.Both the soil-structure interaction and the shear stress distribution of soil layers can be easily and accurately incorporated into the proposed method.Because the uniform shearing interaction between the soil and structures is the principal reaction under seismic loadings,the seismic action can be assumed as the shearing force of soil layers,and then imposed on the soilstructure model.The seismic responses of the structure are finally obtained by the quasi-static method.The dynamic time-history analysis method is taken as the benchmark model to calibrate the proposed method.The optimum dimension of the soil-structure model used in the presented method is determined by comparison with the benchmark model.Furthermore,the validation of the proposed method is verified and approved to be applied for different geological conditions and structural section configurations.Results show that,the proposed response shear stress method could achieve consistent results with the benchmark model when the boundary dimension is over five times the structural diameter or height.Compared to the response displacement method,the response shear stress method could be widely applied in seismic analysis with different ground conditions and structure types.In addition,the design process of the proposed method is simpler and convenient,which provides a novel method for seismic design and analysis of underground structures.关键词
地下结构/抗震设计/动力时程法/反应位移法/反应剪力法Key words
underground structures/seismic design/dynamic time-history analysis method/response displacement method/response shear stress method引用本文复制引用
禹海涛,张正伟..地下结构抗震设计和分析的反应剪力法[J].结构工程师,2018,34(2):134-144,11.基金项目
国家自然科学基金项目(51678438,51478343) （51678438,51478343）
上海市科学技术委员会(13231200503,16DZ1200302,16DZ1201904) （13231200503,16DZ1200302,16DZ1201904）
上海市教育发展基金会(13CG17),上海市青年科技启明星计划资助(17QC1400500) （13CG17）
