The use of CND (Non Destructive Controls) has a great importance in the renovation field, due to the possibility of accomplishing researches in preventive and diagnostic stage on buildings historical-artistic interest. The application carried out on south-east tower of Galliate castle, which is based on the utilization of indirect surveying technique, was aimed at the experimental data re-elaboration, in order to correctly evaluate the static condition of the case study. The compressive stresses affecting the wall structure were related to propagation velocity of ultra-sounds recorded. The method which allowed us to emphasize the dependence between the causes and the effects was the regression analysis; therefore, by using a statistical elaboration, the "dependence curves" were obtained. The performed experiment allowed us, frist to express remarks consideration with respect to the statical condition of the case study, secondly to implement an evalutation control methodology, in stuctural terms, of monumental buildings individual parts.
展开▼
