EXPERIMENTAL STUDY ON BEARING CAPACITY AND MECHANICAL BEHAVIOR OF THE CERAMSITE CONCRETE FILLED STEEL TUBULAR SHORT COLUMNS AFTER FIRE

Zhou Ming; Wang Xintang; Wang Wanzhen

doi:10.13204/j.gyjz201301022

Volume 43 Issue 1

Dec. 2014

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Zhou Ming, Wang Xintang, Wang Wanzhen. EXPERIMENTAL STUDY ON BEARING CAPACITY AND MECHANICAL BEHAVIOR OF THE CERAMSITE CONCRETE FILLED STEEL TUBULAR SHORT COLUMNS AFTER FIRE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 99-103,111. doi: 10.13204/j.gyjz201301022

Citation:

Zhou Ming, Wang Xintang, Wang Wanzhen. EXPERIMENTAL STUDY ON BEARING CAPACITY AND MECHANICAL BEHAVIOR OF THE CERAMSITE CONCRETE FILLED STEEL TUBULAR SHORT COLUMNS AFTER FIRE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 99-103,111. doi: 10.13204/j.gyjz201301022

Citation:

Zhou Ming, Wang Xintang, Wang Wanzhen. EXPERIMENTAL STUDY ON BEARING CAPACITY AND MECHANICAL BEHAVIOR OF THE CERAMSITE CONCRETE FILLED STEEL TUBULAR SHORT COLUMNS AFTER FIRE[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(1): 99-103,111. doi: 10.13204/j.gyjz201301022

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EXPERIMENTAL STUDY ON BEARING CAPACITY AND MECHANICAL BEHAVIOR OF THE CERAMSITE CONCRETE FILLED STEEL TUBULAR SHORT COLUMNS AFTER FIRE

doi: 10.13204/j.gyjz201301022

1.
1. Department of Architectural Engineering,Ningbo University of Technology,Ningbo 315016,China;
2.
2. Faculty of Architectural,Civil Engineering and Environment,Ningbo University,Ningbo 315211,China

Received Date: 2012-04-25
Publish Date: 2013-01-20

Abstract

Abstract

The experimental investigation on post-fire mechanical behavior of ten of four sets of unprotected short columns of ceramsite concrete filled steel tubes(CCFST) was conducted,variation of remaining bearing capacity and failure form of the short columns of CCFST after exposure to fire was discussed for different parameters.Based on the test results,effect of the factors,such as the maximum value of fire temperatures,dimension of cross section of the specimen,slender ratio and concrete mix proportion on the remaining bearing capacities and ductility of CCFST short columns were especially investigated.The results showed that the CCFST short columns after exposure to fire had higher post-fire bearing capacity and better ductility,and there was no descent segment in load-displacement curves of the most of specimens.It was concluded that effect law of the maximum values of response temperature on bearing capacities of CCFST short columns after exposure to fire were related to some key parameters of the specimens,which were mix proportion,slender ratio and dimension of cross section of the specimens.It was shown that the post-fire bearing capacities of the CCFST short columns decreased with increase of water cement ratios of the concrete of the specimens subjected to fire load.
- ceramsite aggregate,
- concrete filled steel tabular short column,
- exposure to fire,
- post-fire bearing capacity

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References(8)

References

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