Naslov
Calibration of Undrained Shear Strength Partial Factor Using Probability Theory

Autori
Dodigović, Filip ; Ivandić, Krešo ; Soldo, Božo ; Grabar, Kristijan

Izvornik
Tehnički glasnik - Technical journal (1846-6168) 16 (2021), 1; TG-2020111313253, 8

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Eurocode 7 ; geotechnical design ; partial factor ; reliability analysis ; uncertainty ; undrained shear strength

Sažetak
Design in accordance with Eurocode 7 applies the partial factors of geotechnical parameters to take into account uncertainties of various sources. The prescribed values of partial factors are unique, even though the degree of uncertainty can vary significantly. This can lead to an unequal reliability level of structures designed using the same procedures and methods. This paper analyses the influence of undrained shear strength variability on the reliability index (\beta), using reliability theory and statistical methods. Analyses were performed in the case of a shallow footing designed in accordance with Eurocode 7, design approach 3. It is shown that reliability indexes of a shallow footing could be lower than the target values prescribed in Eurocode. To meet these values, additional elaboration and calibration of undrained shear strength partial factor (\gamma_{; ; ; c_u}; ; ; ) was proposed.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Rudarstvo, nafta i geološko inženjerstvo, Interdisciplinarne tehničke znanosti

POVEZANOST RADA