Correlation between fatigue effects and seismic actions in highway steel bridges

被引：0
|
作者：
Pipinato, Alessio [1 ]
Pellegrino, Carlo [1 ]
Modena, Claudio [1 ]
机构：
[1] Univ Padua, Dept Struct & Transportat Engn, I-35100 Padua, Italy
来源：
PROCEEDINGS OF THE 8TH INTERNATIONAL CONFERENCE ON STRUCTURAL DYNAMICS, EURODYN 2011 | 2011年
关键词：
Highway; Steel bridge; High-cycle fatigue; Seismic loading; RELIABILITY; PREDICTION;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this study an innovative approach is used in a probabilistic context to evaluate the fatigue reliability of steel girder highway bridges in the presence of seismic loading. In the first part the fatigue damage is related to the traffic load produced by heavy trucks crossing the bridge; the second part deals with the fatigue damage related to seismic loading. Both damage typologies are analyzed using linear elastic fracture mechanics principles, and the time required for an initial crack propagation is calculated. Taking into account that the correlation between fatigue effects and seismic actions is not usually considered in the literature, this method could enable a better understanding of progressive damage phenomena due to fatigue related problems, and could give some new insights for increasing the remaining fatigue life of a large number of steel bridges in seismic zones.
引用
收藏
页码：1118 / 1123
页数：6
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