Assessment Of Response Reduction Factor For Asymmetric RC Frame Building

Response reduction factor is the factor by which the actual base shear force should b e reduced, to obtain the design lateral force during design basic earthquake (DBE) shaking. The R factors in many developing countries are often adopted from the well developed seismic design codes used in the United States or Europe. These R factors provi de false representation for the structural practices applied in developing countries and thus considered unrealistic. So there is a need to come up with realistic R factors for various structural systems used in such countries. In the present study efforts are made to evaluate the response reduction factor and ductility of asymmetric RC braced frame using nonlinear static pushover analysis. The types of the frame considered in this study are asymmetric RC frame with X bracing at alternate bay, shear wall at alternate bay.