摘要
通过一座三跨双曲拱桥的荷载试验，测试桥梁在等效荷载作用下各控制截面的挠度值及应变值，同时测试了自振频率和模态动力参数，检验桥跨结构的实际承载能力。参照现有桥梁承载力评估方法，对该桥整体受力性能和和承载能力做出了评价，该研究方法可供同类型桥梁设计以及荷载试验参考。
The deflections and strains of the tested bridge, a three double-curved arch bridge targeted to the loading experiment, are investigated in the equivalent loads of each control section; meanwhile the dynamic parameters including vibration and modes are examined to evaluate the maximum bearing capacity of bridge structure. Based on the existing evaluation method on the bridge bearing capacity, the performance and carrying capacity of the bridge are assessed, which is of great reference value to the kind bridge design and loading test.
关键词
双曲拱桥
荷载试验
承载能力评估
Double-curved Arch Bridge
Loading Test
Load Carrying Capacity
