Pure Bending Properties of Self-Compacting Concrete Filled Circular Steel Tube

DING Fa-xing; YU Zhi-wu

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DING Fa-xing, YU Zhi-wu. Pure Bending Properties of Self-Compacting Concrete Filled Circular Steel Tube[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 63-68.

Citation:

DING Fa-xing, YU Zhi-wu. Pure Bending Properties of Self-Compacting Concrete Filled Circular Steel Tube[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 63-68.

DING Fa-xing, YU Zhi-wu. Pure Bending Properties of Self-Compacting Concrete Filled Circular Steel Tube[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 63-68.

Citation:

DING Fa-xing, YU Zhi-wu. Pure Bending Properties of Self-Compacting Concrete Filled Circular Steel Tube[J]. Journal of Traffic and Transportation Engineering, 2006, 6(1): 63-68.

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Pure Bending Properties of Self-Compacting Concrete Filled Circular Steel Tube

School of Civil and Architectural Engineering, Central South University, Changsha 410075, Hunan, China

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Author Bio:
DING Fa-xing(1979-), male, doctoral student, 86-731-2656540, dinfaxin@mail.csu.edu.cn
Received Date: 2005-09-22
Publish Date: 2006-03-25

Abstract

Abstract

Based on appropriate numerical constitutive model of concrete filled steel tube, layered method was adopted to calculate the complete moment-curvature curves of concrete filled circular steel tube (CFST) subjected to pure bending, the practical composite flexural stiffness, practical flexural capacity and practical moment-curvature relationships of composite element for CFST beams were presented, the tests of three self-compacting concrete filled circular steel tubes and one normal concrete filled circular steel tube subjected to pure bending were carried out, the influences of concrete strength and steel ratio on the pure bending properties of the specimens were discussed.Experimental result shows that the confinement effect between steel tube and concrete happens in compressive side, but the steel tube is in biaxial tensile stress conditions in tensile side, with the strength increase of concrete, the flexural capacities of the specimens are hardly influenced, but with steel ratio increase, the flexural capacities are enhanced significantly.
- bridge engineering,
- concrete filled steel tubes,
- selfcompacting concrete,
- flexural capacity,
- flexural stiffness,
- composite element,
- moment-curvature curves

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References(10)

References

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