【摘要】 斜拉拱桥是一种新型组合桥梁.以湘潭市湘江四大桥为例,利用大型通用有限元程序建立了斜拉拱桥的三维空间有限元模型,计算了该桥梁结构的自振频率和振型,分析了主要结构参数对振动特性的影响,计算结果可为该桥的设计、施工以及使用阶段的健康检测和维护提供技术参数和依据.更多还原

【Abstract】 Stayed-cable arch bridge is a new pattern composed bridge.The fourth bridge of Xiangjiang River in Xiangtan City serves as a good example,in which the three-dimensional finite element model is established and the natural frequency and modes are calculated,and additionally the influence of primary structural parameters to the autooscillation characteristics is analyzed through the application of the finite element analysis software.The calculating results can offer the related technical parameters and basic data for the design certification,construction,health detection and maintenance in working conditions.更多还原