STUDY ON A SIMPLIFIED MODEL OF A HIGH-RISE SHEAR-TYPE BUILDING FOR EVALUATION OF Q–Δ RESONANCE

被引：0
作者：
Anamizu R. [1 ]
Kohiyama M. [2 ]
机构：
[1] School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University
[2] Dept. of System Design Engineering, Faculty of Science and Technology, Keio University
来源：
Journal of Structural and Construction Engineering | 2023年 / 88卷 / 803期
基金：
日本学术振兴会;
关键词：
Geometric non-linearity; High-rise building; Non-eccentric building; Shaking table test; Torsional vibration;
D O I：
10.3130/aijs.88.59
中图分类号：
学科分类号：
摘要：
To evaluate Q–Δ resonance, which is a torsional resonance phenomenon caused by geometric non-linearity, we proposed a simplified model for an n-story non-eccentric building model with a shear-type structure. We designed and fabricated a four-story small-scale specimen assuming a non-eccentric steel structure with a height of 324 m, and conducted shaking table tests. As a result, the occurrence of Q–Δ resonance was confirmed as predicted by the simplified model. In addition, the simplified model reproduced the resonance amplitude in a finite element model of the specimen with the out-of-plane rotation of slabs constrained and its validity was confirmed. © 2023 Authors. All rights reserved.
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页码：59 / 70
页数：11
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