Structural internal force is calculated by changing constant load of the main girder, the cable Angle, the length of unsupported deck.

通过改变主梁恒载重量、拉索倾角、无索区长度等结构参数，分析结构参数变化对结构受力的影响。

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In this paper, the curve and fabrication length of the main cable which is modelled through catenary elements are calculated with the iterative method.

本文用悬链线单元模拟主缆，通过选代计算了主缆的线形及下料长度。

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Finally, the calculation of the effective length of the tower and main girder for a certain steel cable-stayed bridge is illustrated.

本文例举了一座钢斜拉桥塔柱、主梁自由长度及其稳定性的计算。

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