SEISMIC ANALYSIS OF MULTISTOREY BUILDING WITH BARE FRAME, BARE FRAME WITH SLAB ELEMENT AND SOFT STOREY AT DIFFERENT LEVELS OF THE BUILDING FOR SEISIMIC ZONE II

D.Nagaraju, K.Lakshmaiah, B Manoj Yadav

Abstract: Masonry infill panels are generally examined as non-structural elements and their stiffness contributions are generally ignored in practice, such an approach can lead to a vulnerable model. In the soft storey, the inter storey drifts and seismic demands of the columns are excessive that causes heavy damage or collapse of the buildings during a severe earthquake. In modeling, the Finite Element Method is formerly used and the ETABS software is employed for the linear dynamic analysis of all the different models. This paper discussed about the storey drifts, lateral displacements and base shears of six models including bare frame and bare frame with slab element in seismic zone II. Also this study has been carried out to compare modified first soft storey, second soft storey, and third soft storey provisions with complete infill wall frame, bare frame models, and bare frame with slab element. Results shows a general changing pattern in storey drifts, lateral displacements and base shear irrespective to building height and maximum inter-storey drift was obtained where the soft storey was located at different levels of the building.

Keywords: MULTISTOREY BUILDING

DOI: https://doi.org/10.15623/ijret.2016.0508052