Numerical investigation of the shear behavior of reinforced ultra-high-performance concrete beams

Sifatullah Bahij, Saheed K. Adekunle, Mohammed Al-Osta, Shamsad Ahmad*, Salah U. Al-Dulaijan, Muhammad K. Rahman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

This computational investigation focused on numerical modeling of the shear behavior of ultra-high-performance concrete (UHPC) beams reinforced longitudinally with high-strength rebars and ordinary-strength steel (stirrups). Nonlinear three-dimensional finite element model, using the concrete damaged plasticity model and material properties obtained from uniaxial compressive and tensile laboratory tests, was conducted to simulate UHPC concrete beams within a commercial finite element software package ABAQUS 6.13. This investigation included the effects of various parameters; shear span-to-effective depth ratio (a/d), volume fraction of steel fibers, Vf, longitudinal reinforcement ratio, ρ, and stirrups spacing, s, on shear behavior of UHPC beams. Numerical results compared with previously obtained experimental results in terms of shear force–midspan deflection and cracking-propagation behaviors. The results showed that finite element analysis predicted the shear behavior of UHPC beams in good agreement with the experimental data and predicted the response of the beam with variation in various parameters with a good accuracy.

Original languageEnglish
Pages (from-to)305-317
Number of pages13
JournalStructural Concrete
Volume19
Issue number1
DOIs
StatePublished - 1 Feb 2018

Bibliographical note

Publisher Copyright:
© 2017 fib. International Federation for Structural Concrete

Keywords

  • ABAQUS
  • concrete damaged plasticity (CDP) model
  • high-strength rebars
  • numerical modeling
  • shear behavior
  • ultra-high-performance concrete (UHPC) beams

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science
  • Mechanics of Materials

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