Mechanism study on the effect of floor rotation angle on supported tuned mass damper system of high-rise structure

被引:0
|
作者
Zhang, Guanping [1 ,2 ]
Liu, Yanhui [1 ,3 ]
Tan, Ping [1 ,2 ]
Marco, Dona [4 ]
机构
[1] Guangzhou Univ, Earthquake Engn Res & Test Ctr EERTC, Guangzhou 510006, Peoples R China
[2] Guangzhou Univ, Coll Civil Engn, Guangzhou 510006, Peoples R China
[3] Minist Educ, Key Lab Earthquake Resistance Earthquake Mitigat &, Guangzhou 510006, Peoples R China
[4] Univ Padua, Dept Geosci, Via Gradenigo 6, I-35131 Padua, Italy
基金
中国国家自然科学基金;
关键词
Bending deformation; Floor rotation angle; Wind/seismic induced vibration control; Eddy -current TMD; SEISMIC RESPONSE; DYNAMIC-RESPONSE; DESIGN; PARAMETERS;
D O I
10.1016/j.istruc.2023.105548
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The bending deformation of the super high-rise structures will cause floor rotation angle, and thus affect the vibration reduction effect of the supported tuned mass damper (TMD) system. This paper proposes a motion equation of the TMD control system with the effect of floor rotation angle. Firstly, a finite element model of the supported TMD control system was established by ETABS. Secondly, the formation and floor rotation angle parameters of the structure were obtained by ETABS modal analysis. Then, the structures ETABS model is simplified into a multi-degree-of-freedom (MDOF) model based on the dynamic characteristics of the structure. This paper also presents an evaluation index of the effect of floor rotation angle on the supported TMD system and a supported TMD control system is selected as a simulation example. The relationship between the floor rotation angle coefficient and the TMD parameters is later parametric analyzed. Finally, experiments were designed to verify the effect of floor rotation angle on the supported TMD control system. The experimental results show that the relationship between the rotation angle of the first formation floor and the generalized displacement of the first formation of the assumed structure is close to linear. Therefore, the effect of floor rotation angle of the structure is highly recommended to be considered as an important factor for the design of the supported TMD control system for super high-rise structures.
引用
收藏
页数:10
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