Nonlinear analysis of axially loaded concrete-filled tube columns with confinement effect

Hsuan Teh Hu, Chiung Shiann Huang, Ming Hsien Wu, Yih Min Wu

研究成果: Article同行評審

380 引文 斯高帕斯(Scopus)

摘要

Proper material constitutive models for concrete-filled tube (CFT) columns are proposed and verified by the nonlinear finite element program ABAQUS against experimental data. The cross sections of the CFT columns in the numerical analysis are categorized into three groups, i.e., circular section, square section, and square section stiffened by reinforcing ties. Via the numerical analyses, it is shown that for circular CFT columns, the tubes can provide a good confining effect to the concrete especially when the width-to-thickness ratio D/t is small (say D/t<40). For square CFT columns, the tubes do not provide a large confining effect to the concrete especially when the width-to-thickness ratio Bit is large (say B/t>30). The confining effect of square CFT columns with reinforcing ties is enhanced by the use of reinforcing ties especially when the tie spacing is small and the tie number (or tie diameter) is large.

原文English
頁(從 - 到)1322-1329
頁數8
期刊Journal of Structural Engineering
129
發行號10
DOIs
出版狀態Published - 2003 十月

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造
  • 材料科學(全部)
  • 材料力學
  • 機械工業

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