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本文对大跨度斜拉桥在偏心荷载作用下进行了非线性分析,并且提出了两种不同的结构模型。第一种模型为连续模型,假定缆索沿桥面系连续分布;第二种模型为离散模型,考虑了缆索的实际分布。以所得的数值结果说明了非线性影响的重要性和两种模型的准确性。
In this paper, the nonlinear analysis of long-span cable-stayed bridges under eccentric load is carried out, and two different structural models are proposed. The first model is a continuous model, assuming that the cables are distributed continuously along the bridge deck. The second model is a discrete model that takes into account the actual distribution of the cables. The numerical results obtained show the importance of nonlinear effects and the accuracy of the two models.