الفهرس 
DESIGN OF SHEAR WALLS IN CODESOnly 14 pages are availabe for public view
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Abstract
Reinforced concrete (RC) is one of the most popular materials used in many engineering applications. The primary purpose of all kinds of structural systems selected for a certain structure is to support gravity loads. The most
common loads acting on structures are dead loads and live loads. However, reinforced concrete structures may be subjected to extreme lateral loads caused by wind, blasting, earthquake or direct impact due to an accidental explosion or terrorist attack. Resulting in irreparable loss of lives and property. Shear wall is a common structural system used mainly to resist lateral loads from wind and earthquakes. Shear walls are usually oriented in various directions so that the greater proportion of load value in a given direction is resisted by walls with stronger moment of inertia in that direction. However, if the wall is subjected to a localized extreme load affecting its weakest direction, it may not handle it. The main aim of the current research is to investigate the effect of impact loads on RC walls with different end configurations. For this purpose, a 3D
finite element model using ABAQUS 6.13 software is presented. The work was
established in three stages: In the first stage, two models were presented to represent the wall under study. The results of the models were compared. The compared parameters included shape of failure, maximum deflection at wall and reaction force. It was observed that Model (2) showed good agreement with model (1), so model (2) was selected for the study.
In the second stage, model (2) was selected to study the performance of
RC wall with different end configurations: rectangular, square under impact loads. Based on the obtained results, it was found that the performance of walls
with rectangle end is better than that for walls with square end. Based on previous stage, In the third stage, model (2) with rectangular end was selected for the parametric study. The Parametric studies included a varying number of layers of longitudinal rebar, shear bar diameter and shear bar spacing. It was observed that longitudinal rebar ratio has a significant effect on resistance of RC walls shear bar ratio showed a minor effect on resistance of the RC wall, whereas shear bar diameter showed a significant effect on resisting of the RC wall and reducing the scabbing area.