摘要
以上海长江大桥的斜拉桥为工程背景,选取典型的索梁锚固区进行足尺模型疲劳试验,测试可能出现疲劳破坏的板件和关键部位的应力及其分布,观察疲劳裂纹出现位置和发展规律,并与理论分析结果进行比较,研究索梁锚固区的抗疲劳性能。
Taking the cable-stayed bridge of Shanghai Changjiang River Bridge as the research object, the typical cable-to-girder anchorage zone of the bridge was selected and the full-scale model test for the fatigue of the anchorage zone was made to investigate the relevant plates in which the fatigue failure would possibly occur, the stress and stress distribution in the critical parts and to observe the locations where the fatigue cracks would appear and the propagation laws of the cracks. The results of the investigation and observation are then compared to those of the theoretic analysis and the fatigue resistance performance of the anchorage zone was studied.
出处
《世界桥梁》
北大核心
2009年第A01期87-89,共3页
World Bridges
关键词
斜拉桥
钢锚箱
疲劳试验
静载试验
cable-stayed bridge
steel anchor box
fatigue test
static load test
