摘要
针对跨度(74.9+148+128+148+74.9)m连续梁拱桥进行了拱梁相交处复杂应力区及桥梁中跨跨中处受拉区的细部应力计算,证明了拱梁相交处拉应力不超限,中跨跨中全截面受压。仿真分析了桥梁在高速列车通过时的车桥动力响应,计算结果表明,车辆和桥梁各项动力指标均满足行车安全性要求。
Detail stress analysis was carried out for a continuous beam arch bridge,with spans of（74.9＋148＋128＋148＋74.9）m.Results validated that the tension stresses at the arch-beam joint were below the threshold values,the mid section of mid span was in full compression.And the dynamic responses when the high-speed train transversing the bridge was simulated,it concluded from the results that all dynamic indices of vehicle and bridge satisfied the running safety requirements.
出处
《铁道标准设计》
北大核心
2011年第B12期75-80,共6页
Railway Standard Design
关键词
铁路桥
连续梁拱桥
细部应力分析
车桥动力分析
Railway bridge
Continuous beam arch bridge
Detail stress analysis
Vehicle/bridge dynamic analysis
