Error Evaluation and Suitability Assessment of Common Reliability Methods in the Case of Shallow Foundations

Znanstveni rad - Izvorni znanstveni rad

• Autor: Filip Dodigović
• Autor: Krešo Ivandić
• Autor: Meho Saša Kovačević
• Autor: Božo Soldo
• Autorova ustanova: Sveučilište u Zagrebu; Građevinski fakultet
• Znanstveno / umjetničko područje, polje i grana: TEHNIČKE ZNANOSTI; Građevinarstvo

Sažetak (engleski)

A Geotechnical structure’s reliability index calculated using identical input parameters and assumptions can significantly vary as a function of the used method. The different approaches to solving the reliability problem could result in an error which depends on many factors. The most important error sources are the complexity of the performance function, the number of random variables, their mutual correlations, and marginal statistical distributions. A review of relevant literature in the field of reliability in geotechnical engineering revealed a lack of information on the errors of individual reliability methods for geotechnical problems and general criteria for assessing their suitability concerning the error size. The paper defines the reliability method error and proposes criteria for assessing the suitability of reliability methods in geotechnical engineering. Based on the proposed criteria, the suitability of common reliability methods was evaluated in the example of a shallow foundation, analysed according to Eurocode 7, DA 3, such that E_d=R_d. It is shown that due to the mathematically complex expression of the reliability integral, methods that are easier to use result in a larger error and are not suitable for a reliability analysis of shallow foundations. Sophisticated methods are more accurate but require specific knowledge and resources that are not often used in daily engineering practice.

• Ključne riječi (engleski): reliability methods; reliability method error; reliability index; probability of failure; shallow foundation; Eurocode 7; reliability integral; geotechnical engineering
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Applied sciences (Basel)
• Brojčani podaci: vol. 11(2), 795
• e-ISSN: 2076-3417
• DOI: https://doi.org/10.3390/app11020795
• URN:NBN: urn:nbn:hr:237:753834
• Datum objave publikacije: 2021
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2024-09-04 13:36:30