ASSESSING CUMULATIVE DAMAGE ON RC STRUCTURES BY TEMPORARY SEISMIC INSTRUMENTATION

Abstract

When the earthquake is produced, there are many cases when the buildings are badly damaged. Overall, the measurement of the own vibration period may reveal a number of structural damage, endured by the structure until the moment of measurement; measuring this size, before and after the earthquake, is a comprehensive method for assessing changes in the rigidity of a construction due to seismic stress, noting that rigidity such highlighted corresponds to low levels of stress. According to the modern approach of the post-seismic investigation the damage building assessment should be clearly foreseen and properly planned in order to obtain dynamic parameters for the analysis. The objectives of the paper are to present both a concept for building performances assessment and his applicability for an RC structure.