SEISMIC FRAGILITY CURVE DEVELOPMENT FOR RC STRUCTURES

Abstract

Strong earthquake in recent history has caused major physical damage and casualties. Parts of India facing destructive earthquakes are at high risk. As many reinforced concrete buildings are not built according to the current building code, seismic activity is not taken into account during the selection of the structural framework, and in most cases inspection during the construction process is not adequate which in turn causes deficiencies. Researchers introduced fragility curves to measure the seismic efficiency of reinforced concrete frame structures. The fragility curve offers estimates of the probabilities of approaching or exceeding different limit states at defined ground shaking intensity levels for an individual structure or structural population. The seismic susceptibility of these structures to different earthquakes can be interpreted. The pushover analysis (PA) was performed by using the ETABS software. Limit state functions were defined as per HAZUS methodologies.