Seismic Performance of Soft Storey using Carbon Strands and Steel Strands in a G+4 R.C Frame Building
Keywords:soft storey, carbon strands, steel strands, static analysis, response spectrum analysis, equivalent diagonal struts
Reinforced Concrete Frame Building are becoming increasingly common in urban India. Many such building constructed in recent times have a special feature - open ground storey for the purpose of parking. The presence of walls in upper stories makes building many times stiffer in the upper stories than in the open ground storey. During past earthquake several collapse had been observed due to soft storey effect. The strengthening of soft storey using shear walls and bracing is studied by many researchers. Alternative method to strengthen the soft storey by using carbon strands and steel strands has been studied. In the present study, the performance of carbon strands and steel strands is analysed by tying at first floor to ground with varying angle. The comparative study has been carried out using carbon strands and steel strands of a G+4 R.C Frame Building. The performance of building is assessed based on linear static and dynamic analysis using Etabs software.