Soil-structure interaction response considering drift analysis due to three orthogonal components of near-field ground motions

被引：0
作者：
Sabermahany H. [1 ]
Attarnejad R. [1 ]
机构：
[1] School of Civil Engineering, College of Engineering, University of Tehran, Tehran
来源：
Scientia Iranica | 2022年 / 29卷 / 6 A期
关键词：
Foundation rocking; Inter-story drift; Nonlinear analysis; Seismic performance; Soil-structure interaction;
D O I：
10.24200/SCI.2022.58423.5716
中图分类号：
学科分类号：
摘要：
Soil-structure interaction analysis is one of the most challenging problems in the field of structural engineering. In this paper, two aspects less discussed in the literature, namely: (i) the effect of considering all three components of near-field earthquake excitations instead of just one horizontal component and (ii) elimination of the part of inter-story drifts caused by the foundation rocking, were investigated. Theoretical aspects of both phenomena were considered, and useful considerations were proposed. To provide a more comprehensive description of the suggested modifications, the seismic behavior of a 15-story steel moment-resisting frame building subjected to four near-field earthquake excitations was studied. To this end, 3D nonlinear time-history analysis was conducted using ABAQUS finite element software. The structure is supported by a shallow raft foundation on soft-clayey soil. The results indicate that the two mentioned points are of prime importance and should be considered in the soil-structure interaction analysis due to near-field excitations to evaluate the seismic structural responses more accurately. © 2022 Sharif University of Technology. All rights reserved.
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页码：2953 / 2967
页数：14
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