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大跨度钢桁架桥非线性动力特性分析
An Analysis of Nonlinear Dynamic Characteristics for Long-Span Steel Truss Bridges
【摘要】 以日本某大跨度钢桁架桥梁为算例,采用TDAPⅢ非线性结构动力分析软件进行地震作用下的非线性动力特性分析,通过时程分析法研究了桥梁各构件内力和变形的最大地震响应值.根据分析结果,指出此桥现有的抗震能力不能满足桥梁抗震规范的要求,需要进行加固处理.
【Abstract】 Taking a Japanese long-span steel truss bridge as an example,this paper analyses its nonlinear dynamic response under the seismic force by using the nonlinear structural dynamic analysis software called TDAP Ⅲ and investigates the largest values of internal forces and deformations by means of the time-history analysis method.The results show that the current antiseismic capacity of this bridge can not satisfy the antiseismic code requirements and reinforcement is necessary.
【关键词】 大跨度钢桁架桥;
非线性动力分析;
时程分析法;
【Key words】 long-span steel truss bridge; nonlinear dynamic analysis; time-history analysis method;
【Key words】 long-span steel truss bridge; nonlinear dynamic analysis; time-history analysis method;
【基金】 国家自然科学基金资助项目(50974048)
- 【文献出处】 青岛理工大学学报 ,Journal of Qingdao Technological University , 编辑部邮箱 ,2012年01期
- 【分类号】U441.3
- 【被引频次】2
- 【下载频次】125