Paper Title:
Modeling of the CFT Column under Cyclic Load Based on OpenSEES
  Abstract

This paper investigates modeling approaches of circular concrete-filled steel tube (CFT) column under cyclic load based on flexibility and fiber model. The effects of model parameters on modeling results is discussed, including constitutive relationship of materials, division of the fiber section, and the number of integration points. The results show that the material constitutive relationships of concrete and steel are prime important to the accuracy of the computational results. Three to five integration points for one CFT column in the flexibility-based analysis can achieve the desired accuracy and computational efficiency. The computational result is not sensitive to the number of sectional fibers. However, the desired accuracy can not be obtained if the number of the sectional fiber is not enough.

  Info
Periodical
Advanced Materials Research (Volumes 368-373)
Chapter
Chapter 2: Disaster Prevention and Reduction of Civil Engineering
Edited by
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Pages
761-764
DOI
10.4028/www.scientific.net/AMR.368-373.761
Citation
L. Li, S. S. Zheng, "Modeling of the CFT Column under Cyclic Load Based on OpenSEES", Advanced Materials Research, Vols. 368-373, pp. 761-764, 2012
Online since
October 2011
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Price
$32.00
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