Parametric Study of Fire Performance of Concrete Filled Hollow Steel Section Columns with Circular and Square Cross-SectionAhmad Nurfaidhi Rizalman, Ng Seong Yap Mahmood Md Tahir and Shahrin MohammadE3S Web Conf., 34 (2018) 01011DOI: https://doi.org/10.1051/e3sconf/20183401011