Fire Resistance of Crisscross Concrete-Filled Steel Tube Core Columns in the Different Axial Compression

Abstract:

Crisscross concrete-filled steel tube core column is a kind of new component. In this paper, the cross-sectional temperature distributions and thermal-stress of crisscross concrete-filled steel tube core columns are analyzed by using nonlinear finite element method under eight-side fire, so we can acquire mechanics performance in the high temperature life and fire-resistant. Simulation results show that: this kind of construction has a good inherent performance under fire, moreover, reducing load is an effective measure to improve the fire resistance of crisscross concrete-filled steel tube core columns.

• Periodical: Advanced Materials Research (Volumes 163-167)
• Pages: 157-160
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.157
• Online since: December 2010
• Authors: Ya Feng Xu, Yi Fu, Yu Bo Zhang, Xin Zhao
• Keywords: Axial Compression, Finite Element, Fire Resistant, Temperature Field

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