Integrated survey to extract date for structural investigations

This paper presents some results of a integrated survey, aimed to 3Dmodeling and the subsequent representation of the collapse of partof a historical building. The survey of a building in Salerno it has beenmade, built in Art Nouveau style, has the name taken from “SocietàAnonima per l’Edilizia”, which undertook its construction. The resultshave been a support characterized by metric valence for structuralengineers who have examined the stability of the structure anddetermined the cause of the collapse. The collapse occurred duringthe night and covered the South-West corner of the building.However, there were no neither victims nor injured because the zoneof the building housed the living room or rather the kitchen, and notthe bedrooms. For this case study a integrated survey it has beenconducted; in particular, laser scanning, topographical and terrestrialphotogrammetry techniques in order to obtain the 3D model ofbuildings, plans and prospects and the particular of the collapsedarea have been adopted. The experimental algorithm, developed byauthors, in order to obtain 2D representation of whole building andthe area of collapse, it has been used. The results has been an aid forthe structural engineers. Of considerable support to the aboveanalyzes were both the topographical survey of the collapse site, thatthe laboratory tests, some of them inferred by three-dimensionalmetric knowledge and by graphical representation provided.