الفهرس 
Pressure-Impulse DiagramsOnly 14 pages are availabe for public view
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Abstract
Reinforced masonry walls are commonly designed to resist gravity loads and in-plane seismic forces. Recently, several studies focused on the out-of-plane performance of different types of masonry walls when subjected to blast load. Studies showed that adding boundary elements on the edges of the walls enhanced their blast resistance. The aim of this study is to investigate the influence of alternative configurations of reinforced masonry walls with boundary elements on the out-of-plane resistance of walls under far-field blast loads. In this study, reinforced masonry walls with alternative boundary element configurations, detailed according to ASCE 59-11 to resist out-of-plane blast loads, are analyzed to study the impact of different configurations. In this respect, finite element models of the walls are developed using multi-layer shell elements and a static pushover analysis is conducted to determine the influence of different configurations on the flexure capacities and ductility performance. Then a parametric study, using the same models, is conducted by performing non linear dynamic analysis under different far-field blast loads to assess the response of the walls and level of damage according to ASCE 59-11. The parameters studied in this research are the boundary elements sizes, reinforcement ratios, boundary conditions, aspect ratios and axial load. It is concluded that boundary elements increase the walls’ stiffnesses and their ultimate resistance under blast loading, while greatly decrease their deformations and support rotations. The current study facilitates a better understanding of the influence of different boundary element configurations on reinforced masonry walls in an effort to enhance their resistance to blast loads.