Research on dynamic behavior of cracked simply supported girder bridge under moving vehicular loads

被引：0
|
作者：
Ma, S. W. [1 ]
Liu, F. L. [1 ]
机构：
[1] CCCC Highway Consultants CO Ltd, Beijing, Peoples R China
来源：
BRIDGE MAINTENANCE, SAFETY, MANAGEMENT AND LIFE EXTENSION | 2014年
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
On the operating condition, concrete structures often work with cracks. The stiffness of the structure will be affected by cracks, which influence the dynamic characteristics of structure. Vehicular loads are main load for simply supported girder bridge, so it is significant to research on dynamic behavior of cracked simply supported girder bridge under moving vehicular loads. Based on the theory of spring model of crack, combining with the finite element method, the paper simulate the dynamic characteristics of simply supported beam with cracks and the dynamic response of a simply supported girder bridge under vehicle loads. The calculated results are in good agreement with existing experimental values. In addition, the paper also performs parameter analysis on crack position and crack relative depth, which are the two main parameters for the crack.
引用
收藏
页码：1295 / 1298
页数：4
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