摘要
分析了南盘江悬索桥加劲梁主要部件在交通和环境载荷下的应变时程曲线的规律,进一步研究其疲劳应力谱的特征;研究表明大桥存在着一定的疲劳问题。
Analyzed the characteristic of strain history of the stiffening girder components of Nanpan River Suspension Bridge under vehicle loading. The feature of the fatigue stress amplitude was further studied. The results indicate the bridge has certain fatigue problem.
出处
《低温建筑技术》
2009年第3期47-48,共2页
Low Temperature Architecture Technology
关键词
应变时程
疲劳评估
累积损伤
应力幅
strain history
fatigue assessment
accumulated damage
stress range
