Development of Response Spectrum in Indian Context and It’s Comparison with Design Spectrum

Abstract

Seismic force induced due to earthquake is an important parameter in designing structures and to assess strength of existing structures. Earthquakes are recorded by accelerograph in the form of ground motion. It is established that all earthquake ground motions do not have potential to produce enough seismic force that causes damage to the structures. However, earthquakes quantified as Strong Ground Motion only possess that potential. Various parameters used by researcher to quantity earthquake records as strong ground motion includes, Peak Ground Acceleration (PGA), Peak Ground Velocity (PGV), Frequency Content, Ratio of Peak Acceleration to Peak Velocity, Root Mean Square (RMS) Acceleration, Areas Intensity and Duration. Each strong ground motion consists of varied frequency content in it and offer different seismic demand on the same structure.