Translational stiffness and resistance of sandwich panel connections at elevated temperature

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

Translational stiffness and resistance of sandwich panel connections at elevated temperature

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

—

Continuities

R - Projekt Ramcoveho programu EK

Publication year

2022

Confidentiality

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

Name of the periodical

Engineering Structures

ISSN

0141-0296

e-ISSN

1873-7323

Volume of the periodical

252

Issue of the periodical within the volume

February

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

1-16

UT code for WoS article

000777767400004

EID of the result in the Scopus database

2-s2.0-85120499667