Comparison Study of Structural Stabilities for H-Section Columns Built with Ordinary Grade Strength Structural Steels According to Boundary Conditions and Lengths at High Temperature

Abstract:

Fire resistance performance of structural members has been evaluated from each singular section and standard fire curve since the beginning of fire tests. However, the need of the exact fire resistance of H-section columns applied in the steel buildings has increased. The main reason for this is there is a difference between the conditions being conducted during the fire test and that from real situation. In this paper, the structural stability of H-section column made of an ordinary strength grade structural steels, SS 400, SM 400, and SM 490 at high temperature were evaluated and compared with boundary conditions and column’s length. This was done in order to suggest a new guideline for the application of fire protective materials in steel column in which the boundary conditions and column lengths are different from that tested with hinge to hinge and 3500 mm. The findings from this study showed hinge to hinge boundary condition was more conservative. And fire resistance performance of longer columns in the case of hinge to fixed and fixed to fixed boundary condition than from 3500 mm and hinge to hinge boundary condition can sustain at high temperature without adding fire protective materials.

• Periodical: Advanced Materials Research (Volume 937)
• Pages: 424-427
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.937.424
• Online since: May 2014
• Authors: In Kyu Kwon*
• Keywords: Boundary Condition, Effective Buckling Length, Fire Resistance, H-Section Column, Structural Stability

References

[1] I. K. Kwon, Building Fire Protection, DongHwa, Kyungido, Korea (2007).

[2] Valdir Pignatta Silva, Ricardo Hallal Fakury, Brazilian standards for steel structures fire design, Fire Safety Journal, Vol. 37, No. 2 p.217–227(2002).

DOI: 10.1016/s0379-7112(01)00044-3

[3] I. K. Kwon, A Study on the properties of SM 400 for evaluation of structural stability at high temperature, Journal of Korean Institute of Fire Science and Engineering, Vol. 27 No. 4, pp.7-12 (2013).

DOI: 10.7731/kifse.2013.27.4.7

[4] SBI, Fire engineering design of steel structures, Swedish Institute of Steel Construction, Stockholm(1976).