Pathologies of the industrialized systems: 192 flats built in Avellino (Italy) at Quattrograna West District

This study is referred to 192 flats in Quattrograna West District at Avellino, completed in 1986, now object of building recovery and heavy restructured. The 14 buildings have foundations realized with grade beams in reinforced concrete on drilled piles, and elevation structure in steel, constituted by HEB pillars, IPE beams and Z steel section folded up by pressure used as edge for the floors made by prédalle. The façades are constituted by non carrying infill prefabricated panels of the solidale sandwich type. Of particular interest are: 1) the study of the pathologies of the system of façade, above all the penetration of water from the joints “head to head”, interstitial condensations, cracking and putting out of concrete protecting the steel rods in correspondence of the pivots of anchorage of the non carrying prefabricated panels and the floors; and 2) the idea that is not necessary to make interventions of maintenance and building recovery, but that it is preferable to demolish and to reconstruct.