9 documents found, page 1 of 1

Avaliação do comportamento ao fogo de paredes exteriores em light steel framing

Este estudo avaliou o comportamento ao fogo de paredes em Light Steel Framing (LSF) através de quatro ensaios experimentais de pequena escala, sujeitos à curva de incêndio padrão ISO 834 pelo lado interior (revestido com gesso) e exterior (revestido com ISOLPRO). Como esperado, verificaram-se diferenças significativas no isolamento térmico (I) e no aquecimento dos perfis metálicos. As simulações numéricas por e...

Accurate 3D numerical models for the fire performance on lsf partition walls un...

This study presents the development and validation of advanced 3D numerical models to analyse the fire performance of non-load-bearing Light Steel Frame (LSF) partition walls under different fire scenarios, specifically the standard ISO 834 and HYDROCARBON fire. Medium-scale experimental fire resistance tests from prior research were used for validation, focusing on LSF walls with and without cavity insulation ...

Parametric analysis of post-earthquake fire resistance of reinforced concrete f...

To gain a deeper understanding of post-earthquake fire behaviour, 100 reinforced concrete (RC) frames representative of a building stock designed without considering seismic loading were modelled using the software SAFIR. A total of 4400 numerical analyses were performed to investigate the impact of different assumptions, such as the type of damage, damage location, number of sides of the RC elements exposed to...

Fire performance of non-loadbearing light steel frame external walls: numerical...

This work investigates the fire behaviour of external walls, presenting a numerical study of six different typologies usually found in LSF practice with two fire scenarios affecting the inner and outer sides of the walls. The conclusions show that the temperature evolution is slower for outer side fires but, in these cases, the critical temperature of 350 °C is reached earlier in the steel profiles. Finally, th...

Modelling techniques for the fire performance of empty cavities in LSF walls

Three different solution models were used to compare the fire performance of LSF walls with void cavities. The first solution method considers the air-structure interaction in the cavity region. The second solution method considers the existence of interface elements for the radiation heat transfer in the cavity region allowing the bulk temperature prediction. The third solution method considers the convection ...

Austenitic hollow stainless steel beams at elevated temperatures: experimental ...

Transversally loaded stainless steel beams under fire: Local/global behaviour, ...

This paper presents and discusses the results of a numerical investigation concerning the post-buckling behaviour, strength and design of stainless steel I-section beams prone to local or global (lateral-torsional) buckling under elevated temperatures. Non-linear shell finite element models are employed to assess the structural response and failure loads of I-beams (i) subjected to distinct loading conditions, ...

Post-limit stiffness and ductility of end-plate beam-to-column steel joints

http://www.sciencedirect.com/science/article/B6V28-454T650-3/1/443e289c3e00bc6a910cdfa50f086595

A component model for the behaviour of steel joints at elevated temperatures

Recent experimental evidence has shown that steel joints exhibit a distinct change in their moment-rotation response under increasing temperature. In terms of cold design, the component method is currently the widely accepted procedure for the evaluation of the various design values. It is the purpose of the present paper to extend the component method to the prediction of the response of steel joints under fir...