Seismic Analysis of Vertically Regular and Irregular Building with and without Soft Storey at Different Levels

Abstract

Abstract

For fulfilling functional requirement of community like parking lots, lobbies etc. and increasing unbalance of required area to availability, it is necessary to provide open storeys without brick infill in both types of buildings, that is, in commercial and residential buildings. Open storeys without brick infill, reduce stiffness and also load exhibits higher stress on load carrying members. Present analytical study has been done to find out performance and evaluation of 13 storey RC building with and without soft storeys at different levels. In this paper, eight buildings, out of which one is regular, one is irregular in elevation, three regular buildings are with soft storey and three are irregular in elevation with soft storey. Three methods of analysis namely, Linear Static Analysis (equivalent Lateral load method), Response Spectrum analysis and Nonlinear Static analysis (Pushover analysis) have been used. After the analysis, results are evaluated for each model and results are compared. Following is the description of geometry and procedure carried out in ETABS for each model.

Keywords: Building configuration, ETABS-2015, linear static analysis, pushover analysis, response spectrum

Cite this Article

Sameer Chandwadkar, Dilip Wadje, Gandhe GR. Seismic Analysis of Vertically Regular and Irregular Building with and without Soft Storey at Different Levels. Journal of Structural Engineering and Management. 2017; 4(3): 24–30p.