Resistance of Trapezoidal Sheeting in Fire

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00388047" target="_blank" >RIV/68407700:21110/25:00388047 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/25:00388047

Výsledek na webu

<a href="https://doi.org/10.1002/cepa.70128" target="_blank" >https://doi.org/10.1002/cepa.70128</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cepa.70128" target="_blank" >10.1002/cepa.70128</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Resistance of Trapezoidal Sheeting in Fire

Popis výsledku v původním jazyce

Cold-formed steel trapezoidal sheeting has a significant decrease of its bending resistance in fire due to the small sheet thickness. The bending resistance is generally reached within 10 minutes of a fire. However, the failure in bending is followed by transitions from bending behaviour to a catenary action. The catenary action can form only if a horizontal support is provided by fasteners to the supporting structure. The fasteners are therefore a critical component of the structural design and usually determine the load capacity of the sheeting in fire. In the presented study, connection tests at both normal and elevated temperature are conducted using two different types of fasteners: self-drilling screws with washers and powder-actuated fasteners. For each tested temperature (20, 350, 500, 600 and 700 °C) and sheet thickness (0.75 and 1.5 mm), 4 tests were conducted. The results provide insights into the behaviour of these connections at both normal and elevated temperatures. This paper also describes a large-scale fire test of a lightweight roof with trapezoidal sheeting. Fastening with self-drilling screws was used. The fire test consists of two simple beams with a span of 2x4 m and focuses on fastening and the behaviour of a roof above an internal support. Fire test resulted in a failure of the sheeting connection.

Název v anglickém jazyce

Resistance of Trapezoidal Sheeting in Fire

Popis výsledku anglicky

Cold-formed steel trapezoidal sheeting has a significant decrease of its bending resistance in fire due to the small sheet thickness. The bending resistance is generally reached within 10 minutes of a fire. However, the failure in bending is followed by transitions from bending behaviour to a catenary action. The catenary action can form only if a horizontal support is provided by fasteners to the supporting structure. The fasteners are therefore a critical component of the structural design and usually determine the load capacity of the sheeting in fire. In the presented study, connection tests at both normal and elevated temperature are conducted using two different types of fasteners: self-drilling screws with washers and powder-actuated fasteners. For each tested temperature (20, 350, 500, 600 and 700 °C) and sheet thickness (0.75 and 1.5 mm), 4 tests were conducted. The results provide insights into the behaviour of these connections at both normal and elevated temperatures. This paper also describes a large-scale fire test of a lightweight roof with trapezoidal sheeting. Fastening with self-drilling screws was used. The fire test consists of two simple beams with a span of 2x4 m and focuses on fastening and the behaviour of a roof above an internal support. Fire test resulted in a failure of the sheeting connection.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

SDSS 2025 International Colloquium on Stability and Ductility of Steel Structures

ISBN

—

ISSN

2509-7075

e-ISSN

2509-7075

Počet stran výsledku

5

Strana od-do

682-686

Název nakladatele

Ernst & Sohn

Místo vydání

Berlin

Místo konání akce

Barcelona

Datum konání akce

8. 9. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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