Una copia del libretto deve essere sempre presente in cantiere ed esibita agli organi di vigilanza su richiesta.
To understand the importance of the "Libretto," one must first understand the significance of the name "Dalmine." Originating from the historic steel town of Dalmine in Lombardy, the term became synonymous with tubular steel scaffolding. In the post-World War II reconstruction era and the subsequent economic boom, the need for rapid, safe, and modular construction systems was paramount. The "tubo e giunto" (tube and coupler) system, standardized by companies like Dalmine, revolutionized the industry. It moved construction away from precarious timber frameworks toward engineered steel structures. The "Libretto" was the user manual for this revolution, translating the raw potential of steel into a safe, calculable architecture. libretto ponteggio dalmine pdf
Technically, the "Libretto Ponteggio Dalmine" is an engineering document that dictates the "regole d'arte" (rules of the art). It provides detailed specifications for the assembly of the tubular structure, defining the spacing of standards (vertical tubes), ledgers (horizontal tubes), and transoms. Crucially, it contains the calculations for load-bearing capacity. Before the advent of modern finite element analysis software, these printed tables were the primary source of truth for site engineers. They dictated how much weight a specific configuration could hold, accounting for wind loads, live loads, and dead loads. In the modern context, where these systems are referred to as Pesc (Ponteggi Esterni a Componenti Standardizzati), the "Libretto" remains the foundational text that ensures a structure does not collapse under its own weight or the weight of materials. Una copia del libretto deve essere sempre presente