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Stručni rad

https://doi.org/10.13167/2017.14.8

LINEAR AND NON-LINEAR ANALYSES OF CABLE-STAYED STEEL FRAME SUBJECTED TO SEISMIC ACTIONS

Marko Đuran ; Plan Plus d.o.o., Zagreb, Hrvatska
Ivan Lukačević ; Sveučilište u Zagrebu, Građevinski fakultet, Zagreb, Hrvatska
Darko Dujmović ; Sveučilište u Zagrebu, Građevinski fakultet, Zagreb, Hrvatska


Puni tekst: engleski pdf 768 Kb

str. 68-78

preuzimanja: 2.230

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Sažetak

In this study, linear and non-linear dynamic analyses of a cable-stayed steel frame subjected to seismic actions are performed. The analyzed cable-stayed frame is the main supporting structure of a wide-span sports hall. Since the complex dynamic behavior of cable-stayed structures results in significant geometric nonlinearity, a nonlinear time history analysis is conducted. As a reference, an analysis using the European standard approach, the so-called linear modal response spectrum method, is also performed. The analyses are conducted for different seismic actions considering dependence on the response spectrums for various ground types and the corresponding artificially generated accelerograms. Despite fundamental differences between the two analyses, results indicate that the modal response spectrum analysis is surprisingly consistent with the internal forces and bending moment distributions of the nonlinear time history analysis. However, significantly smaller values of bending moments, internal forces, and displacements are obtained with the response spectrum analysis.

Ključne riječi

nonlinearity; seismic analysis; response spectrum; time history; cable-stayed steel frame

Hrčak ID:

183721

URI

https://hrcak.srce.hr/183721

Datum izdavanja:

2.7.2017.

Posjeta: 2.745 *