其次，论述了关于拱桥稳定性的挠度问题和极限承载力的几何非线性理论。
Secondly, it discussed the deflection in stability of arch bridge and geometry nonlinear theory on ultimate load-carrying ability.
在前述方法的基础上，提出了拱桥承载力的评定方法，即先利用单荷载工况建立基于挠度残差值的目标函数，修正模型的弹性模量和几何参数。
At first it sets up objective function on the basis of the deflection difference of the single working and updates the elastic modulus and geometric parameter of the model.
本文建立了一种新的数值方法——有限体积法进行悬索的大挠度(几何非线性)静力分析和动力响应分析。
In this thesis a new numerical method - the finite volume method is developed to achieve the static and dynamic large-deflection response analysis for suspension cables.
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