Modeling of Strain Penetration Effects in Fiber-Based Analysis of Reinforced Concrete Structures

Focusing on the member end rotation due to strain penetration along reinforcing bars fully anchored in footings and bridge joints, this paper introduces a hysteretic model for the reinforcing bar stress versus slip response. This model can be integrated into fiber-based analysis of concrete structures using a zero-length section element. The authors demonstrate the ability of the proposed hysteretic model to capture the strain penetration effects by simulating the measured global and local responses of two concrete columns and a bridge T-joint system. Findings show that the analysis of concrete structures will appreciably underestimate the local response parameters that are used to quantify structural damage unless the strain penetration effects are satisfactorily modeled.


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  • Accession Number: 01046556
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 17 2007 9:10PM