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为了探讨曲线梁桥空间应力特性,以某曲线梁桥为工程背景,利用实体元有限元法,对大桥弹性阶段的空间应力特性进行分析,采用大型软件Ansys提供的参数化语言APDL建模,通过大量计算,得到大桥的应力影响面,同时建立同规模的直线梁桥分析模型,计算比较得出曲线梁桥与直梁桥的差别,为曲线梁桥的设计计算提供参考。
In order to study the space stress characteristics of curvilinear girder bridge, a curved beam bridge is taken as the engineering background. The solid element finite element method is used to analyze the spatial stress characteristics of the bridge during the elastic phase. The APDL model is constructed by parametric language Ansys. A large number of calculations are made to obtain the stress influence surface of the bridge. At the same time, an analytical model of the straight beam bridge with the same scale is established, and the difference between the curved beam bridge and the straight beam bridge is calculated and compared, providing reference for the design and calculation of the curved beam bridge.