Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering

The terrorist activities and threats have become a growing up problem all over the world and protection of the citizens against terrorist acts involves prediction, prevention and mitigation of such events. In the case of structures an effective mitigation may also be through in the terms of structural resistance and physical integrity. If the structures are properly designed for these abnormal loads damage can be contained. Additionally, in order to ensure safety of existing structures against such events, an evaluation procedure for their inspection and eventual retrofit is needed. The main aims of this research can be listed through the following points: The main objectives of this research can be summarized as follows: -Assessment of existing structures under the action of gravity, earthquake, and blast loads. -Study blast load affect after adding exterior 250mm solid brick wall standing off 500mm of structure boundaries. -Study blast load affect after adding exterior 250mm brick wall with openings area equal 25% of solid facade area, and standing off 500mm of structure boundaries.-Study blast load affect on the existing structure after adding stand alone vertical brick wall at standoff distance 1500mm, using different thicknesses 250, 300, 350, 400, 450, and 500mm. This wall height is vary from 4150mm to 8000mm. -Using available common commercial software for structural analysis considering blast loads

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