To Analyze the Effect of Irregularities on RCC Framed Building under Seismic Analysis

The concept of plan irregularity and vertical irregularity is not new to the structure world. In this paper, the combined effect of both the irregularities were considered in order to understand the behavior as well and to evaluate the performance of RCC multi-storied building with the help of staad.pro. for this purpose, 14 storey and 18 Storey S-shaped RCC building was taken in which the concept of mass irregularities was introduced at two different levels for each building. The study entails analysis of various models, collection of results and scrutinizing them, representation of the results and final comparison between the various parameters of different models. These models were analyzed under seismic forces and lateral stability was checked. From the results of present study, it can be concluded that if the total load of the building remains the same, then there will be slight variation in displacement of building as well as in material quantity. But there is a significant increase of 7% to 15% in bending moment and 12% to 18% in shear force of beams if the heavy mass is transferred from on floor to another floor.