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NONLINEAR ANALYSIS OF REINFORCED SPATIAL SUSPENDED ROD ROOFS

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Author(s): A. A. Sventikov

Journal: Scientific Herald of the Voronezh State University of Architecture and Civil Engineering
ISSN 2075-0811

Volume: 3-4;
Issue: 3-4;
Start page: 4;
Date: 2009;
Original page

Keywords: matrix calculation | nonlinear analysis | suspended tube roofs | plastic deformations

ABSTRACT
Finite-element formulation for the matrix calculation of spatial suspended tube roofs is considered with regard to geometrical and physical nonlineari-ty. Technique of account of sagging of flexible strings because of dead load is offered. Control of development of plastic deformations has been carried out by parameter “measure of plasticity”. Laws of change of deflected mode of spatial suspended rod roofs have been studied for various nonlinear for-mulations.
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