自锚式悬索桥结构有限元动力分析

The dynamic analysis by finite element method for self-anchored suspension bridge

随着交通事业的快速发展,大量复杂桥梁快速兴建。桥梁结构的动力分析是桥梁安全健康监测的重要保障。有限元建模是桥梁结构动力分析的重要研究方向。以自锚式悬索桥天津市富民桥为实例,应用有限元建模并进行动力分析,获得了该桥的前5阶模态振型。研究表明,该方法可行可靠,且可视化,有一定的应用性和适用性。

With the rapid development of transportation,a large number of complex bridges have been built rapidly. The dynamic analysis of bridge structure is an important guarantee for bridge safety and health monitoring. The finite element modeling is an important research direction in the dynamic analysis of bridge structures. Taking Fumin Bridge in Tianjin as an example,the first five modes of the bridge are obtained by finite element modeling and dynamic analysis. The research shows that the method is feasible,reliable and visualized,and has certain applicability and applicability.