斜拉桥索梁锚固区足尺疲劳试验研究

斜拉桥索梁锚固区焊接集中,受力复杂,特别是在运营阶段循环应力作用下的疲劳性能值得关注。本文根据国内某大型斜拉桥中索梁锚固区构造,制作1∶1的索梁锚固区试验模型,进行静力与疲劳试验。根据试验实测数据,研究锚固区关键部位的静力及疲劳受力性能,从而对实桥索梁锚固区结构的可靠性做出评价。

Study on Fatigue Tost of Cable-grider Anchorage Zone

Cable-grider anchorage zone of cable-stayed bridge was stress concentration and complex,especially should pay more attention to fatigue performance under cyclic stress in operation stage.This paper presents the static and fatigue test research on the cable anchorage zone of the main girder of long-stayed bridges. According to test result,make the appraisal to the reliability of the Cablegrider anchorage zone of bridge.