Research on wind-induced torsional vibration response and vibration control of super-tall building with a large side ratio

被引：0

作者：

Zhang L. ^{[1
]}

Li B. ^{[2
]}

Zhen W. ^{[1
]}

Xu H. ^{[3
]}

Sheng P. ^{[1
]}

Xu X. ^{[4
]}

机构：

[1] Beijing Institute of Architectural Design, Beijing

[2] School of Civil Engineering, Beijing Jiaotong University, Beijing

[3] Beijing International Cooperation Base for Science and Technology-Aseismic Research of the Rail Transit Engineering in the Strong Motion Area, University of Science and Technology Beijing, Beijing

[4] The Third Construction Co., Ltd, China Construction Eighth Engineering Division, Nanjing

来源：

Jianzhu Jiegou Xuebao/Journal of Building Structures | 2023年 / 44卷 / 04期

关键词：

hybrid control; large side ratio; super-tall building; wind tunnel test; wind-induced torsional effect; wind-induced vibration control;

D O I：

10.14006/j.jzjgxb.2022.0431

中图分类号：

学科分类号：

摘要：

To investigate the wind-induced torsional effect and wind-induced vibration control measures of the super-tall building with a large side ratio, a pressure test on rigid model in the wind tunnel was conducted. Base-moment coefficients, wind-induced acceleration responses and equivalent static wind loads of the building under varying wind directions were studied, and effects of torsion on comfort index were analyzed. Aiming at the large wind vibration acceleration and the coupling of translational vibration and torsional vibration, the active/ passive switchable hybrid tuned mass damper (ATMD) was used to control the wind-induced vibration of the structure. The parameters of ATMD and the mass strokel under extreme conditions such as earthquake excitation were studied as well. The results show that the building with a large side ratio has larger base-torque coefficients, the correlation of wind-induced effect between torsion and y-direction (paralleled to building short side) translation is significantly strong. The wind-induced torsional effects have a prominent contribution to acceleration responses. The calculation of lateral and torsional wind loads of the building with large side ratio exceeds the applicable scope in current code and cannot be ignored, thus they have to be determined by wind tunnel test and wind vibration response analysis. ATMD can simultaneously control the translational and torsional vibration responses of the structure induced by wind, and improve the wind vibration comfort of structure. © 2023 Science Press. All rights reserved.

引用

页码：87 / 97

页数：10

共 26 条

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