建筑钢结构进展2023，Vol.25Issue(12)：11-22,12.DOI:10.13969/j.cnki.cn31-1893.2023.12.002
钢管混凝土翼缘-波纹腹板组合曲梁局部承压承载力试验研究
Experimental Study on Local Bearing Capacity of Curved I-girders with Concrete-Filled Tubular Flanges and Corrugated Webs
摘要
Abstract
In order to study the load carrying capacity of curved I-girders with concrete-filled tubular flange(CFTF)and corrugated web(CIG-CFTF-CW)under localized pressure,three curved beam specimens,including two CIG-CFTF-CWs and one curved I-girder with corrugated web(CIG-CW),were designed and investigated in localized pressure-bearing damage tests.The failure mechanism and local bearing capacity of the specimens were investigated by analyzing the failure modes,the load-displacement curves,and strain development at some critical positions.The reported experimental results of the three curved I-girders and the reported experimental results of corresponding straight I-girders with CFTF and corrugated web(SIG-CFTF-CW)in literature were compared.A series of finite element analyses were carried out to study the influence of the initial curvature on the local bearing capacity of CIG-CFTF-CW.The results show that the local bearing capacity of CIG-CFTF-CW specimen is 1.98 times that of the corresponding CIG-CW specimen.The flexural strength and torsional stiffness of compressed flange and the corrugation wave of web have significant influences on the local bearing capacity of CIG-CFTF-CW.The initial curvature has little influence on the local bearing capacity of CIG-CFTF-CW with the central angle less than 0.6 rad.关键词
组合曲梁/波纹腹板/钢管混凝土翼缘/局部承压承载力/失效机制Key words
curved I-girder/corrugated web/concrete-filled tubular flange/local bearing capacity/failure mechanism分类
建筑与水利引用本文复制引用
吴承家,邓利霞,邵永波,周满..钢管混凝土翼缘-波纹腹板组合曲梁局部承压承载力试验研究[J].建筑钢结构进展,2023,25(12):11-22,12.基金项目
四川省青年科技创新研究团队项目(2019JDTD0017) （2019JDTD0017）
