Fatigue behaviour of CHS tubular bracings in steel bridges

被引：8
|
作者：
Baptista, Claudio [1 ]
Kannuna, Saad [3 ]
Pedro, Jose Oliveira [1 ,2 ]
Nussbaumer, Alain [3 ]
机构：
[1] GRID Int, Lisbon, Portugal
[2] Univ Lisbon, Inst Super Tecn, ICIST, CEris, Lisbon, Portugal
[3] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2017年 / 96卷
关键词：
Fatigue tests; Tubular connection; Local notch stress method; Steel bridges; PLATE;
D O I：
10.1016/j.ijfatigue.2016.11.007
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The structural solution for cross girder bracings or box girder diaphragms in steel bridges is often made with tubular elements, specially efficient if compression is required for structural behaviour. The connection between the tubular elements and the girder plates is usually made with a gusset welded on a slit in the tube. The weld between the gusset and the tube at the end of the slit is a critical fatigue spot. This paper re-analyses the existing fatigue detailing recommendations and presents the results of fatigue tests carried out on CHS tubes with four different types of detail in the high cycle regime. The results were analysed with a local notch stress approach and compared with previous fatigue tests from literature. Recommendations for fatigue classification and detailing are given. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：127 / 141
页数：15
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