Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31086
Title: Experimental study of the strength and behaviour of reinforced coped beams
Authors: Yam, MCH 
Ma, H
Lam, ACC
Chung, KF 
Keywords: Coped beams
Reinforcement details
Stiffeners
Testing
Issue Date: 2011
Publisher: Elsevier
Source: Journal of constructional steel research, 2011, v. 67, no. 11, p. 1749-1759 How to cite?
Journal: Journal of constructional steel research 
Abstract: A total of 10 full-scale tests were conducted to investigate the strength and behaviour of reinforced coped steel I-beams. The test parameters included the length of longitudinal stiffeners, length of transverse stiffeners, combined longitudinal and transverse stiffeners, double transverse stiffeners, cope depth and cope length. For the coped beam specimens without stiffeners, local web buckling failure occurred in the cope. For the specimens with longitudinal stiffeners only, the general failure mode was flexural yielding of the full beam section at the location of maximum bending moment followed by web crippling at the end of the cope between the longitudinal stiffeners and the top flange of the full beam section. In contrast, the general failure mode for the specimens with combined longitudinal and transverse stiffeners consisted of flexural yielding of the full beam section at the location of maximum bending moment followed by flange local buckling near the loading position. The test results show that the reinforcements were able to increase the capacity of the coped beam specimens significantly and the results also illustrate that in addition to cope depth, cope length also affects the behaviour and strength of the reinforced coped beam specimens. Based on the limited test data, a modification to the current reinforcement details for coped beams was proposed. The proposed reinforcement details accounted for the effects of various cope details. To increase the range of applicability of the proposed reinforcement details, a numerical study is currently underway to consider a wider range of cope details.
URI: http://hdl.handle.net/10397/31086
ISSN: 0143-974X
EISSN: 1873-5983
DOI: 10.1016/j.jcsr.2011.04.015
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