A Review on Short Column Seismic Behavior and Their Prevention on Sloping Ground

The various earthquake damages investigation of past and recent earthquakes has illustrated that the building structures are vulnerable to severe damage and/or collapse during moderate to strong ground motion. The aim of this paper is to represent a general study on the short column seismic behavior originated from the level difference on sloping lots especially in hilly areas. Reinforced concrete (RC) frame buildings that have columns of different heights within one storey tend to suffer more damage in the shorter columns as compared to taller columns in the same storey. The great stiffness of the short columns enables them to absorb large amount of energy. The seismic analysis of RCC building on varying slope angles is studied and compared with the same on the flat ground. The study of short column behavior is needed to further improve their behavior during earthquake therefore short column are required to have more resistant sections. It has been observed that the footing columns of shorter height attract more forces, because of a considerable increase in their stiffness, which in turn increases the horizontal force and bending moment significantly. In addition more steel should be used as stirrups than as longitudinal bars, bracings and shear walls can be provided. Also for existing structures, shear capacity of short columns should be retrofitted by FRP, steel jacket or other materials.