Original scientific paper

https://doi.org/10.14256/JCE.902.2013

Generalized minimal nets in form finding of prestressed cable nets

Krešimir Fresl ; Sveučilište u Zagrebu, Građevinski fakultet
Petra Gidak ; Sveučilište u Zagrebu, Građevinski fakultet
Romana Vrančić ; Sveučilište u Zagrebu, Građevinski fakultet

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

Hrčak ID:

107124

URI

https://hrcak.srce.hr/107124

Publication date:

10.9.2013.

Article data in other languages: croatian

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