Analysis of scaffolds with connections containing looseness

This paper presents an algorithm to model scaffold behaviour and follow the full moment-rotation curve including nonlinear loading and unloading behaviour and including looseness. Different approximations to the moment-rotation curves are developed and applied to simple frames. The Federation Europé...

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Bibliographic Details
Published in:Computers & structures 2011-11, Vol.89 (21), p.1944-1955
Main Authors: Prabhakaran, U., Beale, R.G., Godley, M.H.R.
Format: Article
Language:English
Subjects:
Approximation
Design engineering
Federations
Finite element method
Frames
Joints
Looseness
Mathematical models
Non-linear
Scaffold
Scaffolds
Second-order analysis
Semi-rigid
Stability function
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Summary:This paper presents an algorithm to model scaffold behaviour and follow the full moment-rotation curve including nonlinear loading and unloading behaviour and including looseness. Different approximations to the moment-rotation curves are developed and applied to simple frames. The Federation Européene de la Manutention (FEM) approach gave the simplest reliable results. The models are applied to frames including looseness effects where it is shown that for sway frames looseness reduces the capacity significantly but for braced frames looseness has less effect. Design recommendations for analyses of scaffolds with connections exhibiting looseness are made.
ISSN:0045-7949
1879-2243
DOI:10.1016/j.compstruc.2011.03.016