Research on Ground Motion Selection Method for Time-history Analysis of Structure

被引：0
|
作者：
Zhang Y. [1 ]
Liu Y. [1 ]
Shen J. [1 ]
Zou Z. [1 ]
Yu X. [1 ]
机构：
[1] School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2020年 / 47卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Dynamic time-history analysis; Ground motion; Improved harmony search method; Response spectrum; Structural response parameters;
D O I：
10.16339/j.cnki.hdxbzkb.2020.07.004
中图分类号：
学科分类号：
摘要：
In the process of structural dynamic time-history analysis, reasonable ground motion selection is always a difficult point in engineering. By improving the existing harmony search method for ground motion selection, dynamic time-history analysis is performed for two differently periodic prestressed concrete (PC) frame structures designed according to currently Chinese codes. Then, it is compared with the periodic point method, the dual-band method and the area method for calculation results. The results show that the discreteness of structural response parameters of the periodic point method and the improved harmony search method is smaller in frequently earthquake, and the coefficient of variation is about 10%. Compared with the base shear force of mode-superposition response spectrum method, the dual-band method and the improved harmony search method are more in accordance with the standard design. Structural response parameters of the area method and the improved harmony search method are smaller dispersion in rarely earthquake, and the coefficient of variation is about 15%. Furthermore, the results of the periodic point method are the most dispersion. The periodic point method is only applicable to the ground motion selection process of elastic time-history analysis. The improved harmony search method is applicable to both elastic and elastic-plastic time-history analysis, which can meet standard design and engineering requirement. © 2020, Editorial Department of Journal of Hunan University. All right reserved.
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页码：29 / 39
页数：10
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