The Influence of Bearing Capacity of Self-Stressed CFST Members for Different Strength Grades and Self-Stressed Magnitudes of Concrete

Shui Xing Zhou; Yue Ma; Dong Sheng Sun; Lu Li; Cheng Wu

doi:10.4028/www.scientific.net/AMM.174-177.1546

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 174-177The Influence of Bearing Capacity of Self-Stressed...

The Influence of Bearing Capacity of Self-Stressed CFST Members for Different Strength Grades and Self-Stressed Magnitudes of Concrete

Abstract:

According to the unified theory of general concrete filled steel tube, this paper puts forward a constitutive relationship model of the self-stressed concrete filled steel tube, which was verified by experiments and finite element methods. On the basis of the above, the influences on the bearing capacity of self-stressed CFST members were analyzed about the strength grades and magnitudes of self-stress of confined concrete. The results show that the bearing capacity of the self-stressed concrete filled steel tube members will be improved with the increase of the magnitudes of self-stress and concrete strength grades. Compared to the general CFST in the same condition, the maximum of the bearing capacity can be approximately enhanced 20%.

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Periodical:

Applied Mechanics and Materials (Volumes 174-177)

Pages:

1546-1551

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.174-177.1546

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Online since:

May 2012

Authors:

Shui Xing Zhou, Yue Ma, Dong Sheng Sun, Lu Li, Cheng Wu

Keywords:

Concrete Strength Grade, Constitutive Relationship, Influencing Factors of Bearing Capacity, Magnitude of Self-Stress, Self-Stressed Concrete Filled Steel Tube

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