BEHAVIOR OF CONCRETE-FILLED DOUBLE SKIN STEEL TUBULAR COLUMNS SUBJECTED TO LONG-TERM SUSTAINED LOADS

Li Yong-jin; Tao Zhong

doi:10.13204/j.gyjz200712005

Volume 37 Issue 12

Dec. 2014

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Li Yong-jin, Tao Zhong. BEHAVIOR OF CONCRETE-FILLED DOUBLE SKIN STEEL TUBULAR COLUMNS SUBJECTED TO LONG-TERM SUSTAINED LOADS[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(12): 22-27. doi: 10.13204/j.gyjz200712005

Citation:

Li Yong-jin, Tao Zhong. BEHAVIOR OF CONCRETE-FILLED DOUBLE SKIN STEEL TUBULAR COLUMNS SUBJECTED TO LONG-TERM SUSTAINED LOADS[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(12): 22-27. doi: 10.13204/j.gyjz200712005

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BEHAVIOR OF CONCRETE-FILLED DOUBLE SKIN STEEL TUBULAR COLUMNS SUBJECTED TO LONG-TERM SUSTAINED LOADS

doi: 10.13204/j.gyjz200712005

1.
College of Civil Engineering,Fuzhou University Fuzhou 350002

Received Date: 2007-08-05
Publish Date: 2007-12-20

Abstract

Abstract

Based on the creep and shrinkage models of the concrete under sustained loads proposed in ACI 209 (1992), calculations of the deformation and load- bearing capacity of concrete- filled double skin steel tubular (CFDST) columns are presented in this paper.Influences of several parameters, such as loading age, sustained time, nominal steel ratio, sustained load level, steel strength, inner steel thickness, concrete strength, hollow ratio, slenderness ratio and load eccentricity on the deformation of the columns are analyzed.Formulas to calculate the ultimate bearing capacity of the CFDST columns with long- term sustained loading effects are presented.
- concrete-filled steel tube,
- double skin,
- long-term sustained loads,
- deformation,
- load- bearing capacity

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References(8)

References

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