Paper Title:
Analysis of Uniaxial Dynamic Performance of Concrete-Filled Square Steel Tube Composite Column
  Abstract

Considering the strain rate then puts forward the modified uniaxial dynamic constitutive model related to strain rate in concrete-filled square steel tube and the modified calculation results match well with the experimental results. Based on the above conclusion, uniaxial compression performance finite element analysis with different strain rate among 10-5/s–10-3/s is completed, the results showed that strain rate can obviously change the dynamic performance of the concrete-filled square steel tube. Through the analysis of the influencing factors of the core concrete compressive strength, it is showed that with the increasing of the strain rate and the improving of concrete strength, the ultimate bearing capacity of concrete-filled square steel tube is higher and the ductility is reduced. With the increasing of stirrup ratio, ultimate bearing capacity is greater and the ductility is enhanced. With the sectional dimensions increasing, the ultimate bearing capacity is greater and the ductility is enhanced.

  Info
Periodical
Chapter
Chapter 1: Structural Engineering
Edited by
Xuejun Zhou
Pages
220-224
DOI
10.4028/www.scientific.net/AMM.94-96.220
Citation
X. G. Cui, H. D. Xu, "Analysis of Uniaxial Dynamic Performance of Concrete-Filled Square Steel Tube Composite Column", Applied Mechanics and Materials, Vols. 94-96, pp. 220-224, 2011
Online since
September 2011
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Price
$32.00
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