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。
2
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。
3
Otherwise, the unelongated length of prestressed calbe is solved for the first time in catenary cable description but not in bar's.