Substructure design optimization and nonlinear responses control analysis of the mega-sub controlled structural system (MSCSS) under earthquake action

被引:10
|
作者
Abdulhadi, Mustapha [1 ]
Zhang Xun'an [1 ]
Fan, Buqiao [1 ]
Moman, Muhammad [1 ]
机构
[1] Northwestern Polytech Univ, Coll Mech & Civil Engn, Xian 710071, Peoples R China
基金
中国国家自然科学基金;
关键词
mega sub-controlled structure system (MSCSS); optimal model; viscous damper; dynamic parameters; control effectiveness; response control; rubber bearing; VIBRATION CONTROL; VISCOUS DAMPERS; BASE-ISOLATION; BUILDINGS; FRAME; RESILIENCE; PROTECTION;
D O I
10.1007/s11803-021-2047-2
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The newly proposed mega sub-controlled structure system (MSCSS) and related studies have drawn the attention of civil engineers for practice in improving the performance and enhancing the structural effectiveness of mega frame structures. However, there is still a need for improvement to its basic structural arrangement. In this project, an advanced, reasonable arrangement of mega sub-controlled structure models, composed of three mega stories with different numbers and arrangements of substructures, are designed to investigate the control performance of the models and obtain the optimal model configuration (model with minimum acceleration and displacement responses) under strong earthquake excitation. In addition, the dynamic parameters that affect the performance effectiveness of the optimal model of MSCSS are studied and discussed. The area of the relative stiffness ratio RD, with different mass ratio MR, within which the acceleration and displacement of the optimal model of MSCSS reaches its optimum (minimum) value is considered as an optimum region. It serves as a useful tool in practical engineering design. The study demonstrates that the proposed MSCSS configuration can efficiently control the displacement and acceleration of high rise buildings. In addition, some analytical guidelines are provided for selecting the control parameters of the structure.
引用
收藏
页码:687 / 704
页数:18
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