AN ANALYTICAL APPROACH FOR DETERMINATION OF JOINT SHEAR DEMAND IN EXTERIOR BEAM - COLUMN JOINT USING STAAD.PRO

History has seen much destruction of structures due to joint failures during earthquakes. Beam - column joint failure is the major cause for such destructions. Therefore major concern is given in refurnishing their behaviour. While considering the core beha viour, there is need to calculate joint shear demand also. In earlier days scientists have considered that beam - column joints behave as rigid joint with no deformation contributed by it. Beam - column joint has no problem in itself until the dead and live l oads are concern. As soon as lateral loads, i.e. seismic force, comes into picture it will become a critical problem. This problem has not been solved completely till date. Here through this analytical approach an attempt is made to understand the behaviou r of joint core and joint shear demand. For this purpose 2d mid to low rise building models with some predefined parameters are considered and modelled in STAAD Pro V8i software. These models were designed by using Limit State Design Method as per IS 456:2 000. The joint shear demand is then calculated as per ACI 352 - 02. The results of analytical approach with considered parameters are then discussed briefly and conclusions are drawn.