Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/30654
Title: Direct analysis by an arbitrarily-located-plastic-hinge element - Part 2 : Spatial analysis
Authors: Liu, SW
Liu, YP
Chan, SL 
Keywords: Buckling
Initial imperfection
Plastic
Second-order
Space frame
Issue Date: 2014
Publisher: Elsevier Ltd
Source: Journal of constructional steel research, 2014, v. 103, p. 316-326 How to cite?
Journal: Journal of Constructional Steel Research 
Abstract: This is the part two of the two companion papers, which extends the element formulations and the applications of the curved ALH (Arbitrarily Located Hinge) element to three-dimensional space for direct analysis of the steel frames considering large deflection and inelastic behaviors. A simplified approach assuming the space frame to deform with finite but small rotations is adopted for extending the planar element to the three-dimensional space. The updated Lagrangian description and the incremental secant stiffness method are introduced for considering large deflection in the analysis, which is proven to be accurate and efficient in the convergence in iterations for equilibrium. Since the internal degrees of freedom of the proposed element are condensed, a significant reduction on the size of the global stiffness matrix can be achieved with improvement in numerical efficiency. Finally, examples are given for the verification of the proposed numerical method.
URI: http://hdl.handle.net/10397/30654
ISSN: 0143-974X
DOI: 10.1016/j.jcsr.2014.07.010
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