Evaluation of accidental eccentricity in buildings due to rotational component of earthquake

被引：44
|
作者：
Shakib, H [1 ]
Tohidi, RZ [1 ]
机构：
[1] Tarbiat Modarres Univ, Dept Civil Engn, Sch Engn, Tehran, Iran
来源：
JOURNAL OF EARTHQUAKE ENGINEERING | 2002年 / 6卷 / 04期
关键词：
accidental eccentricity; rotational component; frequency domain;
D O I：
10.1142/S1363246902000760
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This study adopts a random procedure in the evaluation of the effect of the rotational component of earthquake on the accidental eccentricity of symmetric and asymmetric buildings. The spectral density function of the rotational component of earthquake acceleration (about the vertical axis) is obtained on the basis of the spectral density function of the horizontal component of earthquake acceleration. The rotational component of an earthquake can increase the response of the structure. The degree of the increase is highly dependent upon the dynamic characteristics of the system and the rotational component of the earthquake. To bring this increase under consideration, seismic codes represent a parameter referred to as accidental eccentricity, as a part of the design eccentricity. The purpose of the present study is to estimate the value of this increase and to make appropriate suggestions based on frequency domain analysis.
引用
收藏
页码：431 / 445
页数：15
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