大跨径钢管混凝土拱桥动力性能分析

Dynamic Performance of the Large-Span Concrete-Filled Steel Tubes Arch Bridge

为了研究风撑对大跨径钢管混凝土拱桥动力性能的作用,以依兰牡丹江钢管混凝土拱桥为例,运用大型通用软件分别建立无风撑与有风撑的全桥有限元模型。结果表明,大跨径钢管混凝土拱桥横向刚度较小,且风撑的设置可有效提高其横向刚度。

To investigate the effect of wind bracing on dynamic performance of the large- span concrete-filled steel tubes（ CFST） arch bridge,taking Yilan Mudan River CFST arch bridge as an example,finite element models of bridges without wind bracing and with wind bracing are founded by the generalized software. It has been shown that,the transverse stiffness of this type of bridge is smaller,and the arrangement of wind bracings can efficiently improve its transverse stiffness.