Translational stiffness and resistance of sandwich panel connections at elevated temperature

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00353297" target="_blank" >RIV/68407700:21110/22:00353297 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.engstruct.2021.113604" target="_blank" >https://doi.org/10.1016/j.engstruct.2021.113604</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.engstruct.2021.113604" target="_blank" >10.1016/j.engstruct.2021.113604</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Translational stiffness and resistance of sandwich panel connections at elevated temperature

Popis výsledku v původním jazyce

When sandwich panels are used as cladding structures, they contribute to the structural behavior of the building frame. In particular, sandwich panels can noticeably improve the stability of members as well as the global stability of the building. In the design calculations for stability, the properties of the connections between sandwich panels and the supporting steel members play a key role. Although guidelines exist for the resistance and stiffness of sandwich panel connections at ambient temperature, no such rules are available for the fire limit state. To bridge this gap, this study presents an investigation on the translational (shear) behavior of sandwich panel connections at elevated temperatures. A series of connection tests are reported, followed by the description of a numerical model of the analyzed connections. The numerical model is validated against the experimental results, and a parametric study is carried out to extend the scope of the considered connections and investigate the contribution of independent variables. Finally, analytical solutions for the translational resistance and stiffness of sandwich panel connections at elevated temperatures are proposed and verified against the obtained experimental and numerical results. The analytical solutions employ the existing rules for the behavior of connections at ambient temperature and consider several approaches to incorporate the effect of elevated temperature. The panels are considered with PIR and mineral wool cores, with the thickness in a range from 100 to 230 mm. The behavior of panels is analyzed at temperatures up to 600 °C.

Název v anglickém jazyce

Translational stiffness and resistance of sandwich panel connections at elevated temperature

Popis výsledku anglicky

When sandwich panels are used as cladding structures, they contribute to the structural behavior of the building frame. In particular, sandwich panels can noticeably improve the stability of members as well as the global stability of the building. In the design calculations for stability, the properties of the connections between sandwich panels and the supporting steel members play a key role. Although guidelines exist for the resistance and stiffness of sandwich panel connections at ambient temperature, no such rules are available for the fire limit state. To bridge this gap, this study presents an investigation on the translational (shear) behavior of sandwich panel connections at elevated temperatures. A series of connection tests are reported, followed by the description of a numerical model of the analyzed connections. The numerical model is validated against the experimental results, and a parametric study is carried out to extend the scope of the considered connections and investigate the contribution of independent variables. Finally, analytical solutions for the translational resistance and stiffness of sandwich panel connections at elevated temperatures are proposed and verified against the obtained experimental and numerical results. The analytical solutions employ the existing rules for the behavior of connections at ambient temperature and consider several approaches to incorporate the effect of elevated temperature. The panels are considered with PIR and mineral wool cores, with the thickness in a range from 100 to 230 mm. The behavior of panels is analyzed at temperatures up to 600 °C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Engineering Structures

ISSN

0141-0296

e-ISSN

1873-7323

Svazek periodika

252

Číslo periodika v rámci svazku

February

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

1-16

Kód UT WoS článku

000777767400004

EID výsledku v databázi Scopus

2-s2.0-85120499667