Seismic performance evaluation of reinforced concrete frame structures using the endurance time method

被引：0
|
作者：
Bai J.-L. [1 ]
Ou J.-P. [1 ,2 ]
机构：
[1] School of Civil Engineering, Harbin Institute of Technology, Harbin, 150090, Heilongjiang
[2] Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Harbin
来源：
Ou, Jin-Ping (oujinping@hit.edu.cn) | 1600年 / Tsinghua University卷 / 33期
关键词：
Endurance time method; Hysteretic energy; Incremental dynamic analysis; Reinforced concrete structures; Seismic performance evaluation;
D O I：
10.6052/j.issn.1000-4750.2015.03.0214
中图分类号：
学科分类号：
摘要：
The endurance time method (ETM) is characterized by the increase in seismic intensity with respect to time. Three endurance time accelerograms (ETA) were generated based on the national seismic design spectra by using the nonlinear least-square method. Two reinforced concrete frame structures configured with 5 and 12 stories were employed as case studies. Incremental dynamic analyses of structures subjected to 22 ground motions and nonlinear dynamic analyses of structures subjected to three ETAs were carried out. The comparisons of the maximum roof displacement, the maximum interstory drift ratio, the maximum base shear and structural hysteretic energy for different seismic intensities were performed, as well as the comparison of the distribution of the maximum interstory drift ratio and the maximum story shear for severe seismic hazard levels. Results showed that the dispersion of seismic response is low and the results of ETM match well with the median response induced by real ground motions, indicating ETM predicts structural seismic responses with good accuracy. Since ETM derives the seismic response for different seismic hazard levels using only one nonlinear analysis with a high level of computational accuracy and efficiency, it provides a new effective tool for seismic performance evaluation of structures. © 2016, Engineering Mechanics Press. All right reserved.
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页码：86 / 96
页数：10
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