建筑钢结构进展2024，Vol.26Issue(1)：86-93,8.DOI:10.13969/j.cnki.cn31-1893.2024.01.009
螺栓连接波纹腹板钢梁疲劳性能试验与分析
Experimental and Numerical Analysis on the Fatigue Performance of Bolted Steel Beams with Corrugated Webs
摘要
Abstract
Fatigue tests on two bolted steel beam specimens with corrugated webs were carried out,and the fatigue performance and failure modes of the specimens were obtained.The stress distributions on the beam cross-section,and the stress and stiffness variations under cyclic loading of the specimens were analyzed.Existing fatigue test results of welded steel beams with corrugated webs were summarized,and the fatigue life differences between welded and bolted steel beams were compared.By using the finite element software ABAQUS,numerical models of the bolted steel beam specimens with corrugated webs were developed,and the model accuracy was verified by comparing with previously obtained fatigue test results.Based on the validated numerical models,the stress distributions around the fatigue failure position were studied.The stress concentration at the bolt hole was the main reason for the initiation of fatigue crack and subsequent fatigue failure.Based on the obtained numerical results,the fatigue life of the steel beams was further studied using the FE-Safe software,and the predicted fatigue life and position of fatigue failure agreed well with the fatigue test results.关键词
波纹腹板钢梁/螺栓连接/疲劳试验/疲劳寿命/有限元分析Key words
steel beam with corrugated web/bolted connection/fatigue test/fatigue life/finite element analysis分类
建筑与水利引用本文复制引用
袁焕鑫,李晗,高立强,王奥迪..螺栓连接波纹腹板钢梁疲劳性能试验与分析[J].建筑钢结构进展,2024,26(1):86-93,8.基金项目
桥梁结构健康与安全国家重点实验室开放课题重点基金项目(BHSKL19-03-KF) （BHSKL19-03-KF）
