DISCORDANCES BETWEEN DETERIORATION ASSESSMENT AND SEISMIC BEHAVIOR FORECASTS OF PREFABRICATED BUILDINGS

Abstract

In Cuba there are various procedures to evaluate the technical-constructive state of buildings. In this investigation, three of them are applied, with the objective of evaluating the deterioration in the structural components of buildings U-142-143 and E-16-18, built with the prefabricated Great Soviet Panel system located in the José Martí District of the Santiago of Cuba municipality. Due to the pathological damage observed in building U-142-143, changes in seismic behavior are predicted, since the fundamental periods according to environmental vibrations are included in the range of the cracked period, corresponding to the period of the elastoplastic system. without an earthquake. In building E-16-18 with better construction conditions, it is estimated that the highest values ​​of the fundamental periods according to environmental vibrations are not in the range of the cracked period. However, in the results obtained from the evaluation of the deterioration with two of the procedures used, there is no evidence of a correspondence between these evaluations and the forecasts of the seismic behavior. The fundamental causes of these inconsistencies are that these procedures are not specific for reinforced concrete structures, nor located in seismic hazard zones. In addition, these were developed on the basis of a weighted score of a comprehensive diagnosis and if they are used to assess only the structural components, it is obviously confusing to pinpoint the state of deterioration.