斜拉桥有限元模型中的若干问题探讨

Discussion on the Cable-stayed Bridge Issues of Finite Element Modeling

斜拉桥属于高次超静定结构,其计算极为复杂。随着计算机的发展,能够精确求解斜拉桥内力的问题也不再是难事,但前提是必须让有限元软件中的模型和真实的桥梁结构状态相吻合。本文结合重庆嘉悦大桥工程实例MIDAS建模,主要针对斜拉索的模拟以及模型构件之间的连接问题进行探讨。

The cable-stayed bridge is a high-order statically indeterminate structure, and its calculation is very complicated. With the development of the computer, it is not difficult to solve the problem of the internal force of the cable-stayed bridge accurately, but the precondition is that the model of the finite element software should be in agreement with the true state of the bridge structure. In this paper, combined with Chongqing Jia Yue Bridge project MIDAS model, the simulation of cable-stayed cable and the connection between the model components are discussed.