ANALYTICAL STUDY OF SEISMIC BEHAVIOUR OF RCC FRAME WITH SHORT COLUMN EFFECT

Earthquake is a natural disaster which is caused by sudden movement in Earth's crust. Around hundreds of earthquakes are occurring every year in different regions of the world. Out of these, around 2% of the earthquake causes damage to the structure and human lives. From the past studies, it is concluded that the structure which are resting on sloped ground, are most vulnerable to the earthquakes. This is due to variation of column heights on ground floor. Analytical work is carried out of simple 2D frames of different floor heights and different no. of bays is carried out with STAAD Pro software. Different graphs are drawn between its maximum bending moment, axial force, tensile moment, Shear force and compressive force by the use of analytical results. The analysis is done for both plane as well as sloped ground. Later, the sound study on short column effect is done by comparing the results of plane and sloped ground. Most of the studies agree that the short column effect is the major cause for the damage of the structure on sloping ground during earthquake. Some retrofitting technique can also be adopted to reduce the effect.