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UDK: UDK 624.071.2:624.046.001.3
DOI: n/a

Published: Građevinar 65 (2013) 8
Paper type: Original scientific paper
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Generalized minimal nets in form finding of prestressed cable nets

Krešimir Fresl, Petra Gidak, Romana Vrančić

Abstract

Form finding problem of prestressed cable structures is formulated as a variational problem whose solutions are minimal and generalized minimal nets. Kinematic constrains are introduced that allow assignment of chosen lengths to elements. Application of Newton-Krylov methods for solving nonlinear equations of equilibrium is analysed. Iterative application of force density method, where force densities in each iteration step are determined based on given conditions and results of previous step, is described and analyzed.

Keywords
prestressed cable nets, form finding, generalized minimal net, kinematic constraint, Newton-Krylov method, force density method

HOW TO CITE THIS ARTICLE:

Fresl, K., Gidak, P., Vrančić, R. .: Generalized minimal nets in form finding of prestressed cable nets, GRAĐEVINAR, 65 (2013) 8, pp. 707-720

OR:

Fresl, K., Gidak, P., Vrančić, R. . (2013). Generalized minimal nets in form finding of prestressed cable nets, GRAĐEVINAR, 65 (8), 707-720
Authors:
FRESL WEB
Krešimir Fresl
University of Zagreb
Faculty of Civil Engineering
Department for Engineering of Mechanics
PETRA WEB
Petra Gidak
University of Zagreb,
Faculty of Civil Engineering,
Department for Engineering of Mechanics
vrancic romana WEB
Romana Vrančić
University of Zagreb
Faculty of Civil Engineering