Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21903
Title: Strength analysis of semi-rigid steel-concrete composite frames
Authors: Fang, LX
Chan, SL 
Wong, YL
Keywords: Composite structures
Semi-rigid joints
Strength computation
Issue Date: 1999
Publisher: Elsevier
Source: Journal of constructional steel research, 1999, v. 52, no. 3, p. 269-291 How to cite?
Journal: Journal of constructional steel research 
Abstract: This paper proposes an efficient, robust and accurate method for geometric and material non-linear analysis of concrete-steel composite frames allowing for semi-rigid connections. The new element stiffness matrix of a composite beam-column element with connections at ends is formulated by an efficient numerical integration scheme allowing for shift of the neutral axis, variation of the axial strain, concrete cracking and steel yielding along the element. The use of many elements per member, which involves complication in simulation of the shift of neutral axis and computational deficiency, is avoided. Previous methods based on an approximate finite element formulation cannot cater for all these important parameters. A semi-analytical model for determination of the stiffness of composite joint under sagging and hogging moments is proposed. The accuracy of the proposed analytical scheme is illustrated by numerical examples.
URI: http://hdl.handle.net/10397/21903
ISSN: 0143-974X
EISSN: 1873-5983
DOI: 10.1016/S0143-974X(99)00032-2
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