Partial Factors for Light-Weight Roofs Exposed to Snow Load

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F09%3A00157523" target="_blank" >RIV/68407700:21610/09:00157523 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Partial Factors for Light-Weight Roofs Exposed to Snow Load

Popis výsledku v původním jazyce

Collapses of a number of roofs during the winter period 2005/2006 initiated discussions concerning reliability of the roofs exposed to permanent load and snow. The submitted paper provides a critical analysis of present design procedures accepted in Eurocodes, taking into account available measurements of snow loads in the Czech Republic. In a parametric study the load ratio defined as the characteristic snow load over the total characteristic load is considered. Generic steel structural members are designed using alternative sets of partial factors and reliability of the members is verified by a probabilistic analysis. It appears that design based on partial factors recommended in present codes may not guarantee an adequate reliability level, in particular for lightweight roofs. It is shown that reliability-based design or design using a newly proposed partial factor for snow load dependent on the load ratio provides a well-balanced reliability level.

Název v anglickém jazyce

Partial Factors for Light-Weight Roofs Exposed to Snow Load

Popis výsledku anglicky

Collapses of a number of roofs during the winter period 2005/2006 initiated discussions concerning reliability of the roofs exposed to permanent load and snow. The submitted paper provides a critical analysis of present design procedures accepted in Eurocodes, taking into account available measurements of snow loads in the Czech Republic. In a parametric study the load ratio defined as the characteristic snow load over the total characteristic load is considered. Generic steel structural members are designed using alternative sets of partial factors and reliability of the members is verified by a probabilistic analysis. It appears that design based on partial factors recommended in present codes may not guarantee an adequate reliability level, in particular for lightweight roofs. It is shown that reliability-based design or design using a newly proposed partial factor for snow load dependent on the load ratio provides a well-balanced reliability level.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F09%2F0693" target="_blank" >GA103/09/0693: Hodnocení bezpečnosti a rizik technických systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Reliability, Risk and Safety. Theory and Applications

ISBN

978-0-415-55509-8

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

CRC Press/Balkema

Místo vydání

Leiden

Místo konání akce

Praha

Datum konání akce

7. 9. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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