钢管混凝土拱桥刚度比对其自振特性的影响

Influence of Steel Pipe Concrete Arc Bridge Stiffness Ratio on Its Self-vibration Property

针对莲沱大桥理论计算钢管混凝土部分的截面特性,使用大型有限元通用软件ANSYS按三种模式对其空间自振特性进行了计算,并与动载试验结果进行了比较,分析钢管混凝土拱桥竖、横向刚度比对空间自振特性的影响。

Considering section properties of steel pipe concrete of Liantuo large bridge, space self-vibration characteristics of the bridge is analyzed with ANSYS （a finite element analysis software） in 3 models, and calculation results are compared with dynamic loading test results. The influence of vertical and transversal stiffness of steel pipe concrete arc bridge on space self-vibration characteristics of the bridge is analyzed.