The Effect of Shear Walls Positions and Dimensions Variation on the Analysis of Multi-Story Building

Nowadays all regions over the world are exposed to earthquake hazard. So, it is very essential to take the lateral loads effect into consideration in the design of the multi-story and high-rise buildings. Lateral loads obtained by wind and earthquakes cause high stresses, develop sway movement and cause great damage to the structure. It is very significant for the structure to have an adequate strength to resist vertical loads simultaneously with adequate stiffness against lateral forces. Therefore, Shear walls are one of the most common structural elements used for stabilization of the building structures against lateral forces. Providing the shear walls in buildings can increase the lateral stability to resist the seismic lateral load. In this present study, a comparative investigation on regular multi-story reinforced concrete building that consisting of twenty stories is presented to study the behavior of building by varying the positions, shapes, and dimensions of shear walls in the plan. To study the performance of shear walls at different positions during the seismic analysis, both Equivalent Static Load Method (Simplified Modal Response Spectrum Method) and Response Spectrum Analysis are performed. The seismic analysis is performed by using ETABs v. 16.2 software program to study the seismic parameters of the building such as story displacement, story drift, and Base shear. From the below studies, it has been found that the values of story drifts are within the Limits as per the Egyptian Code (ECL 201/2012).