TY - JOUR
T1 - Study on a simplified model of a high-rise shear-type building for evaluation of Q–Δ resonance
AU - Anamizu, Ryosuke
AU - Kohiyama, Masayuki
N1 - Publisher Copyright:
© 2023 The Authors. Japan Architectural Review published by John Wiley & Sons Australia, Ltd on behalf of Architectural Institute of Japan.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - To evaluate Q–Δ 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–Δ 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–Δ resonance response when the bending deformation of an entire building is very small.
AB - To evaluate Q–Δ 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–Δ 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–Δ resonance response when the bending deformation of an entire building is very small.
KW - geometric nonlinearity
KW - high-rise building
KW - non-eccentric building
KW - shaking table experiment
KW - torsional vibration
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U2 - 10.1002/2475-8876.12406
DO - 10.1002/2475-8876.12406
M3 - Article
AN - SCOPUS:85173582578
SN - 2475-8876
VL - 6
JO - Japan Architectural Review
JF - Japan Architectural Review
IS - 1
M1 - e12406
ER -