Title:
Smeared Rotating Crack Model for Reinforced Concrete Membrane Elements
Author(s):
Vahid Broujerdian and Mohammad Taghi Kazemi
Publication:
Structural Journal
Volume:
107
Issue:
4
Appears on pages(s):
411-418
Keywords:
load-deformation response; material modeling; membrane element; reinforced concrete; tension stiffening
DOI:
10.14359/51663813
Date:
7/1/2010
Abstract:
A set of stress-strain relations for normal-strength concrete and mild steel bars embedded in concrete is presented in this paper. The salient features of the proposed constitutive laws are: 1) considering the effect of reinforcement ratio on average stressstrain relationships of cracked concrete; and 2) considering the gradual reduction of average stiffness of steel bars embedded in concrete. Equilibrium, compatibility, and constitutive relationships were incorporated into an algorithm to obtain a procedure for analyzing reinforced concrete membrane elements. Corroboration with data from panel test specimens shows that the presented model provides good predictions for the entire load-deformation response of membrane elements over a wide range of conditions. Furthermore, in situations that other prevailing smeared crack models have shown to suffer from reduced accuracy, the presented model provides good accuracy.