Plastic hinge analysis of FRP confined circular concrete columns

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Dong-Sheng Gu
  • Yu-Fei Wu
  • Gang Wu
  • Zhi-Shen Wu

Detail(s)

Original languageEnglish
Pages (from-to)223-233
Journal / PublicationConstruction and Building Materials
Volume27
Issue number1
Publication statusPublished - Feb 2012

Abstract

Experimental tests have identified that FRP confinement affects the plastic hinge length of reinforced concrete columns. Some tests found that the confinement increased the plastic hinge length; whereas others showed otherwise. The plastic hinge length as well as the drift capacity of FRP confined circular concrete columns are studied in this work through a combination of numerical simulation, experimental study, and mechanism analysis. Data regressions are employed to formulate the plastic hinge length, which is found to be closely related to the confinement ratio of FRP. The obtained plastic hinge model shows that FRP confinement increases the plastic hinge length at low confinement ratio; however, it has an opposite effect when the confinement ratio is high. The accuracy of the proposed model is verified by test results from 29 large-scale FRP-confined circular concrete columns. © 2011 Elsevier Ltd. All rights reserved.

Research Area(s)

  • Column, Concrete, Confinement, Deformation capacity, FRP, Plastic hinge length

Citation Format(s)

Plastic hinge analysis of FRP confined circular concrete columns. / Gu, Dong-Sheng; Wu, Yu-Fei; Wu, Gang; Wu, Zhi-Shen.

In: Construction and Building Materials, Vol. 27, No. 1, 02.2012, p. 223-233.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal