中文摘要：

针对悬索桥主缆索股线形对温度变化敏感的特点,研究了主缆索股断面温度变化以及索塔塔身温度变化对索股线形的影响.考虑主缆索股沿跨度为同一温度,并根据无应力索长恒定不变的原理,给出了空缆状态下索股温度变化与垂度关系的迭代方法,以及温度导致的索塔偏位与索股垂度之间的相互影响,及相应的修正方法.比较了迭代修正法和有限元法分别计算得到的不同温差下索股垂度的改变量,两种方法计算结果吻合较好,最大偏差为9 mm,约为3%.分析表明,运用迭代方法修正由于温差引起主缆索股垂度变化量是可行的.

英文摘要：

In view of the at characteristic that the cable shape is very sensitive on the temperature in the process of main cable erection.Influence of the temperature changes on main cable section and bridge tower to the cable shape was researched.According to invariable temperature models of the cable,correction methods of temperature changes leading to sagging variation under the unloaded cable condition were proposed based on length of non-stress wire strand is equal,and computational method about temperature cha...