Behavior of Fire Exposed Concrete-Filled Double Skin Steel Tubular (CFDST) Columns under Concentric Axial Loads

S.S. Mohd Zuki; J. Jayaprakash; Shahiron Shahidan; Ong Chong Yong

doi:10.4028/www.scientific.net/AMM.773-774.938

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 773-774Behavior of Fire Exposed Concrete-Filled Double...

Behavior of Fire Exposed Concrete-Filled Double Skin Steel Tubular (CFDST) Columns under Concentric Axial Loads

Abstract:

This paper presents the result of an experimental investigation of axial behavior of concrete-filled double skin steel tubular (CFDST) columns exposed to high temperature under the action of monotonically applied concentric axial loads. The columns were exposed to ASTM E-119 standard fire curve until 600°C and kept constant for two different exposure time (i.e., 60 and 90 minutes). Failure patterns and reduction in strength, ductility and stiffness of CFDST columns are reported. Factors influencing the strength, ductility and stiffness of CFDST columns during fire exposure, i.e., exposure time, temperature of concrete core and temperature of inner steel tube, are also discussed.

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Periodical:

Applied Mechanics and Materials (Volumes 773-774)

Pages:

938-942

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.773-774.938

Citation:

Cite this paper

Online since:

July 2015

Authors:

S.S. Mohd Zuki*, J. Jayaprakash, Shahiron Shahidan, Ong Chong Yong

Keywords:

ASTM E-119 Fire Curve, CFDST Columns, Concentric Load, Fire Exposure, Residual Strength

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Creative Commons CC BY 4.0

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* - Corresponding Author

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