Study Of Beam-Column Joint And Effect On Moment Capacity Ratio On RC Frame Structure At Seismic Zone III

Abstract

The design of the beam-column joint is important in RC-framed buildings. A beam- column joint's behaviour is determined by its moment capacity ratio, which is typically larger greater than 1.The value of this varies greatly among different codes.     It is stated quite clearly in IS:   13920 that the moment capacity ratio at the joint must be taken to be 1.4.   In order    to ensure a strong column–weak beam, pushover analysis is carried out on a frame whose moment capacity ratio (MCR) increases with an increase in column dimensions as well as reinforcements. Studying its impact on  lateral displacement, base shear, storey drift,   ductility, and hinge formation, the ideal moment capacity ratio is computed. The conclusion is that  the MCR shouldn't be less than 1.4 in order to achieve greater ductility and plastic hinges at the ends of beams rather than in columns. In order to do this increase in reinforcement of column works better than expanding its size.