The response of a seven-story reinforced concrete building recorded during the Northridge earthquake is analysed in this paper. The building was designed in 1965 to the lateral force requirements of 1964 Los Angeles City Building Code. Non-ductile concrete moment frames and interior slab-column frames form the lateral resisting system of the building. The building suffered severe damage during the Northridge earthquake and was ‘red tagged’. This building was instrumented by as many as 16 sensors during the earthquake. These accelerogram records were analysed using system identification techniques to obtain important building response information. This also provided the opportunity to see if certain analytical techniques that are commonly used by practising engineers and/or researchers and many of which are currently being incorporated in various upcoming documents dealing with seismic evaluation of existing buildings could have predicted the observed performance of the building.
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Md. Saiful Islam (1996) studied this question.