Seismic Performance Study of R.C. Buildings having Vertical Geometric Irregularity using Pushover Analysis
Journal: International Journal for Scientific Research and Development | IJSRD (Vol.3, No. 11)Publication Date: 2016-02-01
Authors : Anilkumar S Katageri; Sharanabasava G;
Page : 83-89
Keywords : Vertical Geometric Irregularity; Pushover Analysis; Performance Point; Hinge;
Abstract
Many reinforced concrete structures were severely damaged in past earthquakes have indicated the need for retrofit. This seismic rehabilitation of older concrete structures in high seismicity areas is a matter of growing concern. Simplified linear-elastic methods are not adequate to assess such seismic deficient buildings. Thus here we carried out the project using Pushover analysis a non-linear elastic method which helps to assess the seismic deficiency or damage vulnerability of buildings. Earthquakes cause the loss in terms of life and property of any region so they are the most devastating natural hazards. size, shape and geometry of that structure i.e, vertical and horizontal irregularities and path of load transferring to the supporting ground will affect the behaviour of the structure. Irregularity in building attracts forces which lead to stress concentration at the point of irregularity and leads to collapse or localized failure of that structure. The present study focuses on seismic performance of irregular RC models having irregularities i.e. vertical geometric irregularity. ETABS a finite element software has been used to analyse the structure. Here 3-D RC models are modeled and analyzed for seismic zones IV and V. Roof displacement; Performance point; Base shear carried; Number of Hinges formed are the parameters used to quantify the performance of the structure.
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Last modified: 2016-01-12 18:13:29