engleski

Selection of earthquake records for efficient damage assessment

Earthquake engineering analyses are unavoidable to obtain response of buildings to earth-quakes in order to ensure for structure to withstand a given level of ground shaking and to maintain a desired level of performance. Main reasons are vagueness and uncertainties related to the ground motion and structural modeling parameters in the available data such as location, size and resulting shaking intensity of future earthquakes. The selection of appropriate seismic input is known to be a critical step while performing this kind of analysis in order to estimate seismic performance in the basis of the hazard at the site where the structure is located. Selec-tion of recorded ground motions are in most cases based on geophysical parameters, ground motion intensity measures, and spectral matching. In this paper seismic analysis will be per-formed for four-story reinforced concrete ISPRA frame structure designed according to Euro-code 8 (EC8) by selecting 30 different earthquake scenario for each EC8 target spectrums in order to evaluate average maximum inter-story drift ratio. Time history analysis for every earthquake record was obtained. As a result, Inter-story Drift Ratios (IDR) as a main damage measure were presented in order to make comparison with defined performance levels of rein-forced concrete bare frames.

seismic damage assessment ; earthquake records ; spectral matching

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