Plastic Limit Analysis of Truss Structures Subjected to Progressive Collapse

Arash Naji
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Arash Naji: Sadjad University of Technology, Mashhad

European Journal of Engineering and Technology Research, 2017, vol. 2, issue 9, 31-35

Abstract: In this paper, a method to generate the required basic mechanisms in a plastic limit analysis of truss structures subjected to progressive collapse is presented. Rigid body motion of all members is introduced by constraint equations and at the same time releases are introduced. A set of basic mechanisms is obtained by solving the generated set of equations. Additional modification is necessary to put the mechanisms in the usual form of relative deformations for each member. The joint geometry of the structure and the member connectivity are the requirements of the proposed method. The method is thus applicable for programming and omits the hand generation process of the basic mechanisms in a limit analysis.

Keywords: Limit Analysis; Rigid Body Dynamics; Structural Failures; Structural Analysis; Equations of Motion (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:2:y:2017:i:9:id:60451

DOI: 10.24018/ejeng.2017.2.9.451

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