摘要
以茅茨岘立交特大桥1×128 m系杆拱桥为依托,分系梁浇筑完毕和系梁纵向预应力张拉结束2种工况,将从实桥采集的应力数据进行温度修正后,与有限元模拟值和按1∶16缩尺室内模型的试验结果进行对比分析。分析结果表明：相同工况、相同位置处实桥截面应力实测值、有限元模拟值和室内模型试验值大致相同,误差在0.6%～5%。
The research background is Maocixian interchange bridge,a 1×128 m tied arch bridge.Two cases were studied including collar beam casting and longitudinal prestressing strands tensioning.The measured stress in the field test with temperature correcting was compared with results of finite element simulation and 1：16 scale model testing conducted in the lab.The results show that the stress values of these three methods are very close given the same loading case and the same location,and the error is within 0.6%to 5%.
出处
《铁道建筑》
北大核心
2016年第11期23-25,30,共4页
Railway Engineering
关键词
钢管混凝土系杆拱桥
相似理论
有限元模拟
缩尺模型
应力分析
C oncrete-filled steel tube tied arch bridge
Similarity theory
Finite element simulation
Scale model
Stress analysis
