Further ezperimental study into applicability of FAD approach to beam-column connections with weld defects
This paper concerns the applicability of modified FAD approach to the assessment of defects existing at the weld terminations. Welded plate bend models, which were designed to represent a connection of an I-section beam to an RHS column member with through diaphragms, were tested under cyclic loads. Through cracks, which were made by using machine cutting and fatigue cracks, were installed on both sides of weld terminations. The prediction of brittle fracture with a variety of defect sizes by using the FE analysis was conducted prior to the test, and defect sizes were decided so that the brittle fracture would not occur for one specimen and would occur for the others. Brittle fracture occurred from tips of defects for the specimens with through cracks, while ductile cracks grew stably and brittle fracture did not occur for the specimen with surface cracks. For the specimens with through cracks, however, the ductile cracks grew stably prior to final rupture and the connection showed deformation capacity.
K.Azuma Y.Kurobane T.Iwashita
Sojo University, Kumamoto, Japan Kumamoto University, Kumamoto, Japan Ariake National College of Technology, Fukuoka, Japan
国际会议
第12届钢管结构国际学术会议(The 12th International Symposium on Tubular Structures)
上海
英文
145-152
2008-10-08（万方平台首次上网日期，不代表论文的发表时间）