Out of Plane Behavior of Reinforced Wall under Blast Loading

Abstract

This paper aims to study the out of plane behavior of a vertical reinforced wall subjected to dynamic blast loading. The reinforced concrete wall is modeled using finite element method with appropriate boundary conditions. A tool was developed to implement the finite element method for a reinforced wall in MATLAB. 3D modeling of reinforced wall is done using 20-noded or 8-noded brick elements. Considering Rayleigh damping, the dynamic equilibrium equations are solved using Gaussian quadrature and Newmark's direct integration scheme. The tool was used to analyze the behavior of reinforced walls under varying percentage of steel, damping ratio, standoff distance, reinforcement diameter, charge weight, etc.