Research of Post-Fire Mechanical Property of Steel Fiber Reinforced Ceramsite Concrete Filled Steel Tubes after Exposure to Fire

Hai Lun  Tong; Tian Hong  Wang; Jian Qi Lu; Xin Tang Wang

doi:10.4028/www.scientific.net/AMR.790.181

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 790Research of Post-Fire Mechanical Property of Steel...

Research of Post-Fire Mechanical Property of Steel Fiber Reinforced Ceramsite Concrete Filled Steel Tubes after Exposure to Fire

Abstract:

The post-fire axial compressive behavior of a set of steel fiber reinforced ceramsite concrete filled steel tubular short columns (noted as SFCC-SSC) was experimentally studied. Effect of the maximum value of fire response temperatures of the specimens and some parameters on the axial compression performance of the specimens was especially discussed. The results show that the surface of the steel tubes after fire presented dark red for 700°Cof furnace temperature and orange red for 900°C, and there was no obvious descending segment in post-fire load-displacement curves of the most specimens subjected to fire load. It was concluded that the axial bearing capacity of the specimens aftersuffering the furnace temperature of 900°C is much less than that of the specimens not subjected to fire load, and the volume of steel fiber of 0.5% of has the greatest effect on post-fire bearing capacity of specimens of SFCC-SSC.

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Periodical:

Advanced Materials Research (Volume 790)

Pages:

181-184

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.790.181

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Online since:

September 2013

Authors:

Hai Lun Tong, Tian Hong Wang, Jian Qi Lu, Xin Tang Wang

Keywords:

Ceramsite Concrete, Concrete-Filled Steel Tube (CFST), Post-Fire Axial Compression Behavior, Steel Fiber Reinforced

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