A probabilistic study of the fatigue behaviour of improved tubular bridge joints

被引：0
|
作者：
Walbridge, SS [1 ]
Nussbaumer, A [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, ICOM, Steel Struct Lab, CH-1015 Lausanne, Switzerland
来源：
LIFE-CYCLE PERFORMANCE OF DETERIORATING STRUCTURES: ASSESSMENT, DESIGN, AND MANAGEMENT | 2004年
关键词：
structures; tubes; tubular joints; tubular trusses; bridges; fatigue; post weld treatment; probabilistic fracture mechanics;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This paper presents the results of several probabilistic linear elastic fracture mechanics (LEFM) calculations conducted to study the fatigue behaviour of tubular bridge joints with and without post weld treatment. The effect of post weld treatment is considered through the calculation of an effective stress intensity factor which takes into account the presence of residual stresses (due to welding and post weld treatment) along the crack path. The results of large-scale fatigue tests on tubular bridge truss specimens are predicted using this approach. Specifically, the observed shift of the critical crack initiation site after post weld treatment is predicted.
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页码：194 / 206
页数：13
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