A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Performance of cellular steel beam under fire
The present work is intended to study the behaviour of cellular steel beam (CSB) under the ISO834 fire for three and four-sided exposure conditions. The finite element-based thermo-mechanical analysis is carried out to predict the behaviour of CSB under fire. The present study considers the transient temperature effect, and the geometrical and material nonlinearity. The universal beam section: UB254 × 146 × 43 is used as the parent section for forming CSB. The present study is performed for the beam slenderness (span to depth ratio) equal to 25. The hinge–hinge boundary conditions are used for CSBs at supports. The beam is assumed to be laterally supported along the beam length on the top flange. The various parameters considered for this study include the effect of size and spacing of the openings and different load ratios under uniformly distributed loading conditions. The performance of different CSBs under fire has been compared using in-plane deflections; out-plane displacements, end-reaction forces, and fire-resistance time. The study shows that the effect size and spacing of the openings along with different load ratios and fire exposure condition has a significant effect on the fire-resistance time of CSB under elevated temperature.
Performance of cellular steel beam under fire
The present work is intended to study the behaviour of cellular steel beam (CSB) under the ISO834 fire for three and four-sided exposure conditions. The finite element-based thermo-mechanical analysis is carried out to predict the behaviour of CSB under fire. The present study considers the transient temperature effect, and the geometrical and material nonlinearity. The universal beam section: UB254 × 146 × 43 is used as the parent section for forming CSB. The present study is performed for the beam slenderness (span to depth ratio) equal to 25. The hinge–hinge boundary conditions are used for CSBs at supports. The beam is assumed to be laterally supported along the beam length on the top flange. The various parameters considered for this study include the effect of size and spacing of the openings and different load ratios under uniformly distributed loading conditions. The performance of different CSBs under fire has been compared using in-plane deflections; out-plane displacements, end-reaction forces, and fire-resistance time. The study shows that the effect size and spacing of the openings along with different load ratios and fire exposure condition has a significant effect on the fire-resistance time of CSB under elevated temperature.
Performance of cellular steel beam under fire
Asian J Civ Eng
Kotapati, Vijaya K. (author) / Khatri, Ashish P. (author)
Asian Journal of Civil Engineering ; 23 ; 1267-1276
2022-12-01
10 pages
Article (Journal)
Electronic Resource
English
Predicted temperature development on protected cellular steel beam (CSB) under fire exposure
| Emerald Group Publishing | 2019