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建立了三种不同横撑形式的系杆拱桥有限元模型,通过现有有限元软件对其进行了结构动力特性分析,得到了前十阶振型,并加以比较,研究了不同横撑形式对各阶振型和桥梁稳定性的影响,对实际工程桥梁横撑选型提供了相应的理论参考依据。
Three finite element models of tied arch bridge with different bracing are established. The structural dynamic characteristics of the tied arch bridge with finite element software are analyzed. The first ten modes are obtained and compared with each other. The vibration modes and the stability of the bridge, and provides the theoretical reference for the selection of the cross-supports of the actual bridge project.