Reliability-based Assessment of Fatigue Life for Bridges

被引：0
|
作者：
Toft, H. S. [1 ]
Sorensen, J. D. [1 ]
机构：
[1] Aalborg Univ, Aalborg, Denmark
来源：
BRIDGE MAINTENANCE, SAFETY, MANAGEMENT, RESILIENCE AND SUSTAINABILITY | 2012年
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The reliability level for bridges is discussed based on a comparison of the reliability levels proposed and used by e. g. JCSS, ISO, NKB and Eurocodes. The influence of reserve capacity by which failure of a specific detail does not lead to structural collapse is investigated. The results show that the reliability level can be significantly reduced if the probability of collapse given local failure is small. A method for reliability analysis of welded steel details is described using both an SN-approach and a Fracture Mechanics approach. By using a fracture mechanics it is possible to take the influence of regular inspections into account. In an illustrative example the reliability level for a set of typical welded steel details is investigated along with the influence of different inspection methods. The results show that the reliability level can be significantly increased by applying regular inspections. However, the accuracy of the inspection methods has a significant influence on how much the reliability level is increased by an inspection.
引用
收藏
页码：2609 / 2615
页数：7
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