An improved consecutive modal pushover procedure for estimating seismic demands of multi-storey framed buildings

被引：14
|
作者：
Zhang, Jing-Zhou [1 ]
Jiang, Jian [1 ]
Li, Guo-Qiang [1 ,2 ]
机构：
[1] Tongji Univ, Dept Struct Engn, Shanghai 200092, Peoples R China
[2] Tongji Univ, State Key Lab Disaster Reduct Civil Engn, Shanghai, Peoples R China
来源：
STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS | 2017年 / 26卷 / 04期
关键词：
improved consecutive modal pushover procedure; inelastic structural properties; interaction between modes; modified displacement increment; seismic demands; tall buildings; PLAN TALL BUILDINGS; NONLINEAR STATIC ANALYSIS; GROUND MOTIONS; COMPONENTS;
D O I：
10.1002/tal.1336
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
An improved consecutive modal pushover (ICMP) procedure is proposed to enhance the accuracy of conventional CMP procedure for estimating seismic demands of tall buildings. It accounts for inelastic structural properties and interaction between vibration modes. The displacement increment at the roof of buildings used in each stage of pushover analyses is modified based on the displacement contribution of each mode. The performance of the proposed ICMP procedure is verified against three high-rise frames subjected to various ground motions. The results obtained from the ICMP procedure are compared with those from the nonlinear time history analysis, conventional pushover analysis, and CMP analysis. The comparison shows the advantages of the ICMP over the other pushover procedures. It is concluded that the ICMP procedure is more accurate than the CMP procedure.
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收藏
页数：16
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