分离式基础柔性防撞装置结构分析方法比选

采用杆系单元、实体单元对宜昌夷陵长江大桥防撞装置结构进行有限元分析,并与m法计算的水平位移及作用效应进行对比。结果表明,杆系单元的计算结果与实体单元的计算结果相差很小,并且建模过程简单快捷;m法的计算结果与有限元的相差较大,且计算过程繁琐;研究结果可为类似柔性防撞结构分析以及设计提供参考。

Comparision and Selection of Analysis Methods for Flexible Anti-collision Equipment Structure of Separated Foundation

The anti-collision equipment of Yiling Yangtze river bridge in Yichang city is analyzed using truss elements and solid elements based on the finite element method, the horizontal displacement and force effect are compared with the results of the m method. The results show that calcuation results differences are very small between the truss elements and solid elements, moreover the modeling process of truss elements is simple and quick. However, the calculation results by the m method have difference compared with finite element method and calculating processes of m method is complex. The research results could be taken as reference for analysis and design of the similar flexible anti-collision equipment.