TITLE:
Investigation on the Fire Resistance of Cellular Steel Beam with Sinusoidal Openings
AUTHORS:
Michee Sagali Mutentu, Bikoumou Gambat Maximino Horacio, Yinghua Yang
KEYWORDS:
Fire Resistance, Thermal and Structural Analysis, Cellular Steel Beam, Transient Temperature Effect
JOURNAL NAME:
Open Journal of Civil Engineering,
Vol.13 No.4,
December
7,
2023
ABSTRACT: This paper investigated the fire resistance of CSBs with various parameters under high temperature rise due to fire using finite element software ABAQUS. The mechanical parameters of CSBs are analyzed, including load-bearing capacity and the temperature distribution during the heating process. Through structural analysis simulation of the entire heating process, the structural response of the CSBs is divided into five stages: elastic stage, elastic-plastic stage, self-balancing stage, catenary stage and ultimate destruction stage. The results indicate that the opening diameter-to-height ratio, opening spacing-to-height ratio and load ratio significantly affect the structural responses of CSBs in fire, followed by opening shape as secondary effects. In all the numerical analyzes, CSBs are analyzed with a uniformly distributed load and having simply supported boundary conditions.