【作者】 梁建文； 何颖；

【Author】 Liang Jianwen,He Ying (Department of Civil Engineering Tianjin University,Tianjin 300072)

【机构】 天津大学土木工程系；

【摘要】 提出了场地总体非线性动力特性识别的一个方法。方法以一相邻已知参考场地为基础,假定待识别场地和参考场地具有相同的基岩露头运动,根据待识别场地和参考场地地表强震和弱震记录,识别场地的总体非线性动力特性。以天津地区两个实际场地(一个作为参考场地,一个作为待识别场地)为例对场地总体非线性动力特性进行了识别。研究表明,方法能有效识别场地总体非线性动力特性,可直接应用于实际工程。更多还原

【Abstract】 This paper propose a method of estimating the general nonlinear dynamic characteristics of an unknown site,in which,a known reference site nearby is introduced,and both the unknown site and the reference site are assumed having the same bedrock outcrop motion,and strong and weak earthquake record of the unknown site and the reference site are used.It is shown that the method can accurately estimates the general nonlinear dynamic characteristics of sites,and the method can be directly applied to engineering.更多还原