Paper Details

Irregular buildings constitute a major portion of the modern urban infrastructure. The group of peopleinvolved in constructing the building facilities, including owner, architect, structural engineer, contractor and localauthorities, come up with the overall planning, selection of structural system, and its configuration. This may lead tobuilding structures with irregularities in their mass, stiffness and strength along the height of building. When suchbuildings are located in a seismically active area, the structural engineer’s role becomes more challenging. The analysisof the seismic response of irregular buildings is complex due to nonlinear and inelastic response and more difficult thanthat of regular buildings. Therefore, the structural engineer needs to have a complete understanding of the seismicresponse of irregular structures. The effect of shape of column and orientation of column will have a major influence onthe structure when the structure is subjected to a lateral load such as earthquake load .The objective of this study is to carry out the seismic analysis of irregular RC frame using special shaped columnsconsidering both plan and stiffness irregularity.This study also finds out the effects on various parameters of RCbuildings under seismic occurance due to special shape of columns. The parameters considered are lateral displacementand story drift. The software used for modelling and analysis is ETABS 2015.

Anju Nayas, Minu Antony, “SEISMIC ANALYSIS OF IRREGULAR RC FRAME BUILDINGS WITH SPECIAL COLUMNS”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 6, pp. 334-341, June 2017.