SEISMIC PERFORMANCE OF SINGLE PIER BUILDING

India concentrated to move new technologies to resist earthquake and implement various ideas to build the infra structures. These new techniques should reduce the cost and give durability for the structure. The structural engineers implement various new techniques. Floating column or single pier building is very useful in commercial structure many projects adopted floating columns, especially above the ground floor, where transfer girder are employed, so that large open space is available in the ground floor. These open spaces can be used for assembly hall or parking purpose. During the earthquake failure starts at a point of weak zone. The weakness arises due to discontinuity in mass, stiffness and geometry of structure. The structures having the discontinuity are termed as irregular structures. Vertical irregularities are one of the major reasons of failure of structure. The single pier is used it prevented vertical irregularities and prevents the failure of structure. My research project aims at evaluating the single pier G+3 building for seismic conditions. For designing equivalent lateral force procedure is acquired and the Demand Capacity Ratio (DCR) is carried out for beams and columns in order to assess the member for seismic load, live load & dead load. Analysis are carried out by using Staad pro software and manual design also done with respect to consideration. In this project three types of irregularity are used namely mass, stiffness and vertical geometry is considered. Finite element analysis was conducted for each type of irregularity and the storey shear forces obtained were compared with that of a regular structure. In this frequency content was varied in three types of ground motion i.e., low, intermediate, high. By use finite element analysis each types of irregularities ground motion and nodal displacement were compared. Finally, design of above mentioned single pier irregularities building frames is carried out use IS13920correspondened to finite element analysis.