March 28, 2024
Mahmoud Malakouti Olounabadi

Mahmoud Malakouti Olounabadi

Academic Rank: Assistant professor
Address:
Degree: Ph.D in Civil Engineering
Phone: 07731222309
Faculty: Faculty of Engineering

Research

Title .Analysis of RC Deep Beams Considering the Shear Deformations and Bar-concrete Interaction
Type Article
Keywords
Journal Periodica Polytechnica-Civil Engineering
DOI
Researchers Shaker Hashemi (First researcher) , Mahmoud Malakouti Olounabadi (Fourth researcher)

Abstract

In this paper, reinforced concrete (RC) deep beams (DBs) have been analyzed numerically and a new approach is proposed to the nonlinear numerical modeling of such structural members. The effect of shear deformations and the interaction between reinforcing steel bar and concrete are considered in modeling and analysis. In order to consider the effect of shear deformations, the Timoshenko beam theory has been applied to formulate the analysis method. In the modeling, the RC DB is divided into several sub-elements which are composed of concrete and reinforcing steel bars. Individual degrees of freedom have been assigned to each reinforcing steel bar. Thus, each reinforcing steel bar is able to slip relative to its surrounding concrete and the bond effect is simulated by nonlinear springs. To consider the interaction between reinforcing steel bar and concrete, the concrete segment acts as a beam element, and each reinforcing steel bar acts as a truss element. The reliability of this method has been confirmed by comparing the obtained results from the numerical analysis and the results of the experimental pushover test.