Research on Behavior of Circular Steel Tubes with Different Coating Subjected to Fire Load

Abstract:

The fire experiment was conducted for three of circular steel tubes protected with two different gypsum fireproof panel and the steel tube without any protective material. The fire response temperature of surface of steel tubes was measured and the axial compressive bearing capacity of the specimens after fire were tested and analyzed. The test results show that gypsum fireproof panel has better fire protection characteristics. It is noted that the variation of temperatures of inner surface of gypsum fireproof panel under fire is consistent with the temperature of outer surface of the steel tube. The maximum difference of temperature between the outer surface of the tube and the furnace space is 150°C as the fire keeps stable for the steel tube without any protection. It is concluded that two of the specimens protected with gypsum fireproof panel have larger post-fire capacity, which means that the gypsum fireproof panel has better effect on fireproof of the steel tube under fire.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 5227-5230
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.5227
• Online since: May 2011
• Authors: Ming Zhou, Xin Tang Wang, Jie Yin, Zhi Guo Xie
• Keywords: Different Coating, Fire Load, Fire Response, Steel Tubular Short Column

References

[1] Guoqiang Li, Shouchao Jiang and Guixiang Lin: Calculation and Design of Fire Resistance of Steel Structure, edited by China Building Industry Press, Peking (1999) (In Chinese)

[2] Guoqiang Li, Junli He and Shouchao Jiang: Building Structure Vol.30 (2000), p.12 (In Chinese)

[3] Ryder N L, Wolin S D and Milke, J A: Journal of Fire Protection Engineering Vol.12 (2002) p.31

[4] Weiyong Wang, Guoqiang Li and Peijun Wang: Chinese Quarterly of Mechanics Vol.29 (2008), p.120 (In Chinese)

[5] Liyan Shi: Journal of Chongqing Jianzhu University Vol.24 (2002), p.15 (In Chinese)

[6] Qin Wang: Study on Fire Resistance of H-section Columns with Thermal Gradient Fireproof Measures of Steel Structure. Shanghai: Tongji University (2006) (In Chinese)