PERFORMANCE OF PLAN IRREGULARITY BUILDING USING RESPONSE SPECTRA ANALYSIS

Ranga swamy, Raja Madhukar vishnu

Abstract: Earthquake leads to ground to vibrate and structures are subjected to severe stresses due to the motion. Today unsymmetrical building plan are quite common and reflects to torsion, discontinuous load path, lagging of stiffness and can be destructive. During earthquakes, plan irregular buildings will be more vulnerable. In order to avoid these failures, centre of stiffness and centre of mass of a building should come closer and need adequate stiffness so that torsion effect decreases. In the present study, attempt is made to understand the performance of G+40 storey high rise building considering steel bracing in various exterior positions by using response specturm analysis. The building plan is of C shape providing connection of bracing system within the storey, two storey, four storey and eight storey using X bracing system. The performance of building is compared considering with varying position of X- bracing and connectivity of storeys

Keywords: Unsymmetrical plan, Steel bracings and response spectrum analysis

DOI: https://doi.org/10.15623/ijret.2015.0425040