標題: Cyclic behaviour of unreinforced and rib-reinforced moment connections
作者: Chen, CC
Chen, SW
Chung, MD
Lin, MC
土木工程學系
Department of Civil Engineering
關鍵字: welded moment connection;weld access hole;flange rib;plastic rotation
公開日期: 1-一月-2005
摘要: This study investigates the cyclic behaviour of the beam-to-column welded moment connections used in steel moment-resisting frames. Two unreinforced welded connections were tested initially to elucidate the behaviour and failure mode. Test results showed that both specimens failed by the brittle fracture of the beam flange, initiated from the root of the weld access hole. Nonlinear finite element analysis was used to identify the causes of the failure. The stress concentration in the weld access hole region has the potential to cause the beam flange to fracture. Analytical results also demonstrated that reinforcing the connection with a single rib can reduce the concentration of stresses at the root of the weld access hole. Further tests of two specimens whose beam flanges were each reinforced by a single rib revealed that the single rib effectively prevents beam flange fracture in the weld access hole region. (C) 2004 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jcsr.2004.06.005
http://hdl.handle.net/11536/24503
ISSN: 0143-974X
DOI: 10.1016/j.jcsr.2004.06.005
期刊: JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
Volume: 61
Issue: 1
起始頁: 1
結束頁: 21
顯示於類別:期刊論文


文件中的檔案:

  1. 000225522200001.pdf