AXIAL FORCE AND DEFORMATION OF A RESTRAINED STEEL BEAM IN FIRE Description and validation of a simplified analytical procedure

作者：Iqbal Naveed^*; Heistermann Tim; Veljkovic Milan; Lopes Fernanda; Santiago Aldina; da Silva Luis Simoes

来源：Advanced Steel Construction, 2016, 12(2): 174-193.

DOI：10.18057/IJASC.2016.12.2.6

• Structural fire design
• performance based design
• Abaqus
• fire tests
• simplified design procedure
• catenary action

Structural fire design is exceedingly adopting the performance based approach. There are evident advantages of this approach compared to the prescriptive methods from codes. An analytical procedure, based on the real performance, must accurately predict the beam behaviour in fire. The study presented here proposes one such simplified analytical procedure aim to predict the real behaviour of a restrained steel beam. The proposed analytical procedure is validated through FE Analysis using FE models validated through test results. The study also attempts to establish the importance of using semi-rigid connection strength with respect to accurately predicting the behaviour of the restrained beam at catenary stage.

• 出版日期2016-6