Evaluation of Different Design Standards for the Design of Axial Loaded Concrete Filled Steel Tube Columns under Fire

Authors

Ebtsam Youssef Ibrahim Abd El Ghaffar, At Structural Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Dakahlia 35516, EgyptFollow
Nabil Said Mahmoud, Professor in Structural Engineering, Faculty of Engineering, Mansoura University, Mansoura, Dakahlia 35516, Egypt
Fikry A. Salem, Associate professor in Structural Engineering, Faculty of Engineering, Mansoura University, Mansoura, Dakahlia 35516, Egypt
Mohammed. M. Ghannam, Associate professor in Structural Engineering, Faculty of Engineering, Mansoura University, Mansoura, Dakahlia 35516, Egypt

Subject Area

Civil and Environmental Engineering

Article Type

Original Study

Abstract

This paper compares various codes and standards for the behavior of “Concrete-Filled Steel Tubes” (CFST) columns under fire and axial load. The codes evaluated include European standards (EC4.2 and EC3.2), the American standard (AISC 360), and the Australian standard (AS/NZS 2327). The fire resistance of Concrete-Filled Steel Tubular (CFST) and steel hollow (SH) columns was assessed using a computer program developed with Visual Studio .NET. The program's results were compared with previous experimental data to evaluate the accuracy of various codes and standards in predicting the behavior of these columns under fire conditions. This study highlights the importance of selecting the appropriate code based on the column type, as each code demonstrates varying levels of accuracy for different types of columns. Overall, this research offers a practical and effective approach to analyzing column behavior under fire conditions, which can aid in improving building designs and enhancing safety in structures exposed to fire. Through this study codes, it was obtained that; for CFST columns, the European code (EC4.2) provided results closest to the experimental data, indicating that it is the most accurate for predicting fire behavior of the composite columns.

Keywords

CFST; Steel hollow section; fire resistance; European code (EC4); AISC 360; AS/AZ 2327

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 License.

Recommended Citation

Ghaffar, Ebtsam Youssef Ibrahim Abd El; Mahmoud, Nabil Said; Salem, Fikry A.; and Ghannam, Mohammed. M. (2025) "Evaluation of Different Design Standards for the Design of Axial Loaded Concrete Filled Steel Tube Columns under Fire," Mansoura Engineering Journal: Vol. 50 : Iss. 5 , Article 5.
Available at: https://doi.org/10.58491/2735-4202.3323