Based on the parabola and catenary theories, calculation formulas on the cable length are summarized, and the precision is discussed.
以抛物线和悬链线理论为基础，总结推导了悬索索长的实用计算公式，对各公式的计算精度进行了分析。
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。
Otherwise, the unelongated length of prestressed calbe is solved for the first time in catenary cable description but not in bar's.
值得指出的是，在求解索原长这一施工成型的前提条件时，本文首次将其按索元来处理，而不是按直线杆元。
The effective length of the drag line will be obtained by solving the reverse catenary equation and then the expression of trajectory in actual state will be derived.
通过对反悬链方程的求解推求有效缆长，继而得出了实际状态下的轨迹表达式。
In actual state, the change of the embedded point and the characteristic of the reverse catenary are taken into account. This paper will propose the concept of effective length of the drag line.
实际状态下，考虑嵌入点的变化和嵌入缆的反悬链特性，提出了拖曳缆有效缆长的概念。
In actual state, the change of the embedded point and the characteristic of the reverse catenary are taken into account. This paper will propose the concept of effective length of the drag line.
实际状态下，考虑嵌入点的变化和嵌入缆的反悬链特性，提出了拖曳缆有效缆长的概念。
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