PARAMETRIC STUDY OF VERTICALLY IRREGULAR BUILDING HAVING MASS AND STIFFNESS IRREGULARITIES

STRUCTURE ENGINEERING

Nowadays, as in the urban areas the space available for the construction of buildings is limited. So in limited space we have to construct such type of buildings which have can be used for multiple purposes such as lobbies, car parking etc. To fulfil this demand, buildings with irregularities is the only option available. The structures having discontinuity are termed as Irregular structures. Irregular structures contribute a large portion of urban infrastructure. During an earthquake, failure of structure starts at points of weakness. This weakness arises due to discontinuity in mass, stiffness and geometry of structure. Vertical irregularities are one of the major reasons of failures of structures during earthquakes. To study the behaviour of the building having mass, stiffness and vertical irregularities at different floors models were analyzed in ETABS 2013. For this study of behaviour of building we are considering all models in seismic zone III. Parameters should be considered for this study- Base shear, Storey drift and Lateral displacement, Time period in various mode shapes, Force in Beam and Column.

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