Study on Non-Linear Behaviour of Reinforced Concrete (G+6) Apartment Under Repeated Earthquake Model Excitations By Using ETABS And FEM

Current practices in earthquake engineering only apply single earthquake on building structure during modeling and analysis. However, in real earthquake event, the tremors always occur repeatedly until two (or) three times after the first tremor. This phenomenon can affect the stiffness and strength of the structural system. Due to lack of time, any rehabilitation action is impractical. Thus, the building may experience greater damage due to several repeated tremors. This project gives a brief idea about the non-linear behavior of generic reinforced concrete building under excitation of single and repeated earthquake. Non-Linear behaviour of structure, in term of inter storey drift ratio were presented using incremental dynamic analysis curve. The results from analysis demonstrate that the repeated earthquake phenomenon require greater inter storey drift demand compared to single earthquake. This is a nature of earthquake and in technical views it is called as repeated earthquake phenomenon. Thus, in reality the earthquake load might hit the structure more than one time during an earthquake event. The present project is to study on Non-Linear behaviour of the reinforced concrete G+6 apartment under repeated earthquake modal excitations using ETABS which in turn reduces the modal value, so that the sudden collapse of the building can be resisted. Dynamic load cases which includes both wind and seismic loads should be applied and non-linear analysis should be performed.