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Influence of modelling on truss stress analysis results (CROSBI ID 190034)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Šimić Penava, Diana ; Ilijaš, Tanja Influence of modelling on truss stress analysis results // Transactions of FAMENA, 36 (2012), 4; 73-84

Podaci o odgovornosti

Šimić Penava, Diana ; Ilijaš, Tanja

engleski

Influence of modelling on truss stress analysis results

In order to determine the real state of stress in a reinforced concrete truss and to determine the impact of restraint rods in the truss nodes on the stress in the beam, a theoretical and an experimental analysis of stress in reinforced concrete truss were conducted. The analytical modelling is conducted for the idealized truss system with hinges in nodes, and separately for the realistic truss system with rigid nodes. The numerical modelling is conducted using the finite-element method, and the experimental modelling is made using the concrete Warren truss, while a dimensional analysis is used for the comparison of results. In all elements of the realistic truss with rigid nodes, the stress values are greater than those of the corresponding elements of the idealized truss with hinges in nodes, especially in truss elements next to bearings. To gain a more complete insight into the real state of stress in trusses, it is recommended to view the truss structure as a frame structure with rigid nodes, which is in agreement with its real behaviour.

truss ; analytical and experimental modelling ; finite-element method ; dimensional analysis

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Podaci o izdanju

36 (4)

2012.

73-84

objavljeno

1333-1124

Povezanost rada

Građevinarstvo

Indeksiranost