Influence of Creep on Torsional Restraint Provided to Cold-Formed Z-shaped Purlins by Sandwich Panels

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU151573" target="_blank" >RIV/00216305:26110/24:PU151573 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Influence of Creep on Torsional Restraint Provided to Cold-Formed Z-shaped Purlins by Sandwich Panels

Original language description

Sandwich panels supported by purlins are widely used as the main load bearing part of roof and wall cladding systems of steel buildings. Beside of their main function as building envelope, sandwich panels provide lateral and torsional restraint to purlins which positively influences the member resistance. Lateral restraint provided by sandwich panels is equal for both gravity and uplift loads applied on the panel’s surface, however, the torsional restraint may have a different behaviour depending on the direction of loading. While gravity loads increase the contact pressure between the panels and purlins so that the torsional restraint is ensured up to a relatively large rotation of the purlin, uplift loads reduce the contact area which can result in smaller torsional restraint. The paper discusses and compares the different behaviour and addresses the resulting requirements for the experimental setups. Another aspect that is noticeable in torsional restraint, but not in lateral restraint, is the infl

Czech name

—

Czech description

—

Type

O - Miscellaneous

CEP classification

—

OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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