Study on a simplified model of a high-rise shear-type building for evaluation of Q-Δ resonance

被引：0
作者：
Anamizu, Ryosuke [1 ]
Kohiyama, Masayuki [2 ]
机构：
[1] Keio Univ, Grad Sch Sci & Technol, Yokohama, Japan
[2] Keio Univ, Fac Sci & Technol, Dept Syst Design Engn, 3-14-1 Hiyoshi,Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
来源：
JAPAN ARCHITECTURAL REVIEW | 2023年 / 6卷 / 01期
关键词：
geometric nonlinearity; high-rise building; non-eccentric building; shaking table experiment; torsional vibration; TORSION;
D O I：
10.1002/2475-8876.12406
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
To evaluate Q-Delta resonance, which is a torsional resonance phenomenon caused by geometric nonlinearity, a simplified model for a multistory non-eccentric building with a shear-type structure was proposed. A four-story small-scale specimen was designed and fabricated, assuming a non-eccentric steel structure with a height of 324 m, and conducted shaking table tests of the specimen. Q-Delta resonance was confirmed as predicted by the simplified model. In addition, the simplified model reproduced the resonance amplitude calculated using a finite element model of the specimen with constrained out-of-plane slab rotation. The simplified model can be used to predict the Q-Delta resonance response when the bending deformation of an entire building is very small. To evaluate Q-Delta resonance, which is a torsional resonance phenomenon caused by geometric nonlinearity, we propose a simplified model for a multistory non-eccentric building model with a shear-type structure.image
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页数：16
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