Research on Bearing Capacity of Concrete Filled Double Skin (CHS Inner and SHS Outer) under Eccentric Compression

Rong Zhou; Jun Hai Zhao; Xue Ying Wei

doi:10.4028/www.scientific.net/AMM.723.422

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 723Research on Bearing Capacity of Concrete Filled...

Research on Bearing Capacity of Concrete Filled Double Skin (CHS Inner and SHS Outer) under Eccentric Compression

Abstract:

The ultimate load calculation formula for the solid multi barrel tube-confined concrete columns (CHS inner and SHS outer) was derived based on the Unified Strength Theory (UST) in this paper. The influence of intermediate principal stress and the double restriction effect and the decrease of longitudinal stress were considered in the formula. Based on the axial compression load and consider the eccentricity ratio and slenderness ratio, by introducing the reduction factor of concrete strength and the equivalent restriction reduction factor, based on unified strength theory solutions of thick tube, combined with concrete filled skin tube unified theory, deduce the calculation formula of eccentric compression bearing capacity of concrete filled steel tubular columns and analysis the influence complication.

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Periodical:

Applied Mechanics and Materials (Volume 723)

Pages:

422-426

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.723.422

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Online since:

January 2015

Authors:

Rong Zhou*, Jun Hai Zhao, Xue Ying Wei

Keywords:

Concrete Filled Double Skin Steel Tubes, Eccentric Compression, Thick Tube, Unified Strength Theory

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