Abstract : the paper analyses damaging causes for fixed support of chongqing beibei chaoyang suspension bridge in high temperature in august 1992 . it put forward the idea for changing fixed support into finite displacement supper support based on site and analyses for structural intemal force . it is practical for engineering 文摘:分析重庆北碚朝阳吊桥在1992年8月高温时，使固定支座破坏的原因，在现场调查和结构内力分析基础上，提出了将固定支座改为有限位移橡胶垫板支座方案，实践证明是可行的
