自锚式悬索桥主缆线形的计算

Calculation for cable curve of self-anchored suspension bridge

以南京市某自锚式悬索桥为背景,研究推导出了两种自锚式悬索桥主缆线形的计算方法:抛物线法和分段悬链线法,并且对两种方法的计算结果进行了比较,结果表明:分段悬链线法考虑因素较全面,较抛物线法计算复杂,但结果较精确,两种方法均可应用于自锚式悬索桥的主缆线形计算。

Based on some self-anchored suspension bridge in Nanjing as a case, the paper studied and deduced two calculation methods for cable curve of self-anchored suspension bridge, the parabola method and the segmental catenaries method, and compared the calculation results of the two methods. It is pointed that the segmental catenaries method, which takes all-around factors into account, is relatively complicated, but the results are relatively precise. The results show that the two methods are feasible to calculate the cable curve of self-anchored suspension bridge.