摘要
为考虑大跨桥梁风振导致的构件疲劳问题 ,假定疲劳寿命服从威布尔分布 ,并考虑平均拉应力的影响 ,修正得到相应的疲劳可靠度公式 ;在桥梁抖振精细时程分析基础上 ,模拟出构件的应力时程 ,并以南京长江二桥为实例对公式进行了验证。
In order to consider the fatigue problem of components in long span bridge induced by wind load,fatigue reliability formula is modified by assuming the fatigue life is accord with the weibull distribution and considering the effet of mean tension stress;Based on the accurate bridge buffeting analysis of time history,the time history of components is simulated and numerical example is presented to testify this method.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2001年第4期63-66,共4页
China Journal of Highway and Transport
