土木工程与管理学报2012，Vol.29Issue(1)：89-92,4.
抗震设计反应谱的动力放大系数
Dynamic Amplification Coefficient of Seismic Design Response Spectrum
毛天尔 1曾双双 2栾极 3冯程程3
作者信息
- 1. 武汉理工大学土木工程与建筑学院,湖北武汉430070
- 2. 深圳市华正建筑设计有限公司,广东深圳518109
- 3. 华中科技大学土木工程与力学学院,湖北武汉430074
- 折叠
摘要
Abstract
The value of dynamic amplification coefficient in current Chinese seismic design code (GB50011-2010) is 2.25. It considers only the effect of the site condition, no magnitude and epicenter distance. With 726 strong earthquake records from the west of the Unites States, the dynamic amplification coefficient is studied as a single factor and multi-factor considering the effects of site condition, magnitude and epicenter distance. The results show that dynamic amplification coefficient has great differences under various factors. The result from the effect of site condition is very close to the value of current Chinese seismic design code. To sum up, the group of site condition, magnitude and epicenter distance is more representative of the level for understanding seismic ground motion. Based on the statistical results, the proposed value of dynamic amplification coefficient is 2. 5.关键词
抗震设计反应谱/场地/震级/震中距/动力放大系数Key words
seismic design response spectrum/site condition/magnitude/epicenter distance/dynamic amplification coefficient分类
建筑与水利引用本文复制引用
毛天尔,曾双双,栾极,冯程程..抗震设计反应谱的动力放大系数[J].土木工程与管理学报,2012,29(1):89-92,4.
