Reliability analysis of a glulam beam
Toratti, Tomi (Author), Schnabl, Simon (Author), Turk, Goran (Author)

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The present case study is an example of the use of reliability analysis to asses the failure probability of a tapered glulam beam. This beam is part of a true structure built for a super market in the town of Kokemaki in Finland. The reliability analysis is carried out using the snow load statistics available from the site and on material strength information available from previous experiments. The Eurocode 5 and the Finnish building code are used as the deterministic methods to which the probabilistic method is compared to. The calculations show that the effect of the strength variation is not significant, when the coefficient of variation of the strength is around 15% as usually assumed for glulam. The probability of failure resulting from a deterministic design based on Eurocode 5 is low compared to the target values and lower sections are possible if applying a probabilistic design method. In fire design, if a 60 min resistance is required, this is not the case according to Eurocode 5 design procedures, a higher section would be required. However, a probabilistic based fire analysis results in bounds for the yearly probability of failure which are comparable to the target value and to the values obtained from the normal probabilistic based design. (C) 2006 Elsevier Ltd. All rights reserved.

Keywords:reliability, Eurocode, design, glulam, fire
Tipology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Number of pages:str. 279-293
Numbering:Letn. 29, št. 4
ISSN on article:0167-4730
DOI:10.1016/j.strusafe.2006.07.011 Link is opened in a new window
COBISS.SI-ID:3588961 Link is opened in a new window
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Record is a part of a journal

Title:Structural safety
Shortened title:Struct. saf.
COBISS.SI-ID:6691333 This link opens in a new window

Secondary language

Keywords:zanesljivost, Evrokod, projektiranje, lepilo, požar

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