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Reliability of short seismic links in shear (CROSBI ID 184162)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Bulić, Mladen ; Čaušević, Mehmed ; Androić, Boris Reliability of short seismic links in shear // Bulletin of earthquake engineering, 11 (2013), 4; 1083-1098. doi: 10.1007/s10518-012-9419-y

Podaci o odgovornosti

Bulić, Mladen ; Čaušević, Mehmed ; Androić, Boris

engleski

Reliability of short seismic links in shear

This paper presents the results of research in reliability of short seismic links in shear based on tests. Four types of short links were analysed, each having the same cross section and the same length, but with different number of web stiffeners. The main purpose of the stiffeners is to preserve buckling of the seismic link web, i.e. to achieve plastification of the cross section by shear. The design model of shear resistance according to Eurocode 8 is applicable only to short links without web stiffeners. By adding the web stiffeners nonlinear inelastic behaviour of short seismic links differs depending on the number of stiffeners, so that the calculation model of shear resistance according to Eurocode 8 for short seismic link with stiffeners should be improved. This fact is considered by introducing the improve factors that were determined from the laboratory tests conducted on 16 specimens. On the base of tests in the second part of this paper the reliability of short seismic link is performed by forming limit state equations. These equations are formed by using the stochastic model, i.e. by describing the statistical nature of basic variables calculating the reliability index as an operational value of failure probability. The reliability level was determined by using the probabilistic analysis based on the first order reliability method (FORM) which resulted with the conclusion that the short seismic links with two and three couples of web stiffeners designed according to requirements of Eurocode 8 have enough reliability for the reliability class RC2 and the mean recurrence interval (MRI) of 50 years.

short seismic links; seismic energy; steel frames; reliability index; tests; eurocodes

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Podaci o izdanju

11 (4)

2013.

1083-1098

objavljeno

1570-761X

10.1007/s10518-012-9419-y

Povezanost rada

Građevinarstvo

Poveznice
Indeksiranost