刚架与拱组合系杆拱桥抗震分析

On the anti-seismic analysis of the tied-arch bridge of rigid frame combination

以某刚架—拱组合系杆拱桥为例,利用Midas软件建立有限元动力分析模型,进行了动力特性计算和抗震分析,并给出了计算成果,计算结果表明,刚架与拱组合系杆拱桥结构抗震性能较好,是一种可以在高震区修建的桥型。

Taking some tied-arch bridge of rigid frame combination as an example, the paper adopts Midas software to establish the finite element dynamic model, undertakes the dynamic characteristics calculation and anti-seismic analysis, and provides the calculation results. It is shown by the calculation results that the anti-seismic performance of the tied-arch bridge of rigid frame combination structure is better and it is a kind of bridge which can be applied in some highly seismic regions.