Ultimate State of Bridges with Rocking Isolation under Extreme Earthquakes

被引：0
|
作者：
Lee, T. Y. [1 ]
Huang, M. Y. [1 ]
Chung, K. J. [1 ]
机构：
[1] Natl Cent Univ, Dept Civil Engn, Chungli, Taiwan
来源：
ADVANCES IN CIVIL AND INDUSTRIAL ENGINEERING IV | 2014年 / 580-583卷
关键词：
ultimate state; rocking isolation; bridge; spread foundation; extreme earthquakes;
D O I：
10.4028/www.scientific.net/AMM.580-583.1555
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study is aimed to analyze the ultimate state of bridges with rocking isolation of spread foundations under extreme earthquakes. The Vector Form Intrinsic Finite Element method (VFIFE) is adopted to simulate the failure procedure of bridges with and without rocking isolation. To simulate the highly nonlinear behaviors between soil and foundations, Winkler-based models are established in the VFIFE in this study. A practical five-span bridge with spread foundations is chosen to study the effect of rocking isolation and discuss the influence of altering parameters of bridges. The analytical results are compared between linear soil springs and nonlinear soil springs. Furthermore, the ultimate state of bridges is simulated to realize the dynamic behaviors of bridges under extreme earthquakes.
引用
收藏
页码：1555 / 1558
页数：4
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