الفهرس 
Abstract
Problem StatementOnly 14 pages are availabe for public view
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Abstract
Conventional methods for the everyday practice of structural analysis have been believed to work well for many years. However practitioners have occasionally expressed doubt about those methods as well as the desire to have more accurate methods.
Realizing the importance of the accurate estimation of seismic behavior (represented by top displacements and base shear values) for multi-story buildings, and in order to conduct investigation on the influence of the following four parameters; stiffness of columns, slab thickness (diaphragm effect), number of stories, and rectangularity ratio on both top displacements and base shear values through a numerical study, a comprehensive study has been carried out for verifying the traditional method used by the Egyptian code in calculation purposes of top displacements and base shear values compared to the exact method (time history) that deals with the whole structure and real conditions that the structure subject to.
Egyptian Code 201/2008 introduces an equation to be used for calculating base shear depending on earthquake activity zone, fundamental period of the building and own weight regardless the stiffnesses of columns. Additionally, in-plane stiffiness of slabs is ignored in the conventional analysis of high-rise building although in reality the floor slabs thickness may have a considerable influence on the lateral response of the structures. Consequently, if the in-plane stiffness of slabs in a frame system structure is totally ignored the lateral stiffness of the global frames may be underestimated.