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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2003, Vol. 4 Issue (5): 565-572    DOI: 10.1631/jzus.2003.0565
Civil Engineering     
Experimental study on centrifugal concrete-filled steel tubes under bending and torsion
JIN Wei-liang, QU Chen, YU Yi
Department of Civil Engineering, Zhejiang University, Hangzhou 310027, China; Department of Civil Engineering, Zhejiang University of Science and Technology, Hangzhou 310012, China
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Abstract  A real-size experiment on 11 tubes was done to study the performance of centrifugal concrete-filled steel tubes under bending and torsion. This paper first introduces the relevant operating method, equipment, subjects and processes. The factors that affect deformation and stiffness and the break mechanism under different loading were studied. Experimental stress analysis showed that the values of practical critical stress of steel tubes accorded well with the MISES Yielding Rule. The correlative equation (on the bearing capacity of a structural member under bending and torsion) deduced in this study may provide valuable reference for the design of this structural member.

Key words： Centrifugal concrete-filled steel tube      Bending and torsion      Stiffness      Distortion      Bearing capacity     
Received: 10 September 2002     
CLC:  TU375  
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JIN Wei-liang
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JIN Wei-liang, QU Chen, YU Yi. Experimental study on centrifugal concrete-filled steel tubes under bending and torsion. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2003, 4(5): 565-572.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2003.0565     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2003/V4/I5/565

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