This short course on demolitions aims to show the progressive tendency of this topic to evolve towards an increasingly current technological discipline. Sure, destroying is easier than building, and the notions needed to plan and complete a demolition are on a more rudimentary level than those required to plan and complete a construction but, just as certainly, learning the basics of demolition can be significant in the evolutionary scenario in both civil and environmental engineering. Demolition techniques represent an essential chapter: no demolition project can be approved if the collateral construction project is missing. The objectives of the course are, in summary: to represent the main techniques in use and to provide the elements necessary to identify those most suitable for specific needs, also on the basis of technical-economic evaluations; to critically examine the landscape of demolitions for different types of structures and different materials.

Nozioni di Scienza delle Costruzioni; nozioni di tecniche di scavo.

Reasons for carrying out the demolitions: theme setting and overview. Techniques and equipment for mechanical demolition: expansive mortars; hydraulic hammers; pliers and shears; cutters. Techniques in use for weakening a structure before demolition. Summary on equipment and of examples of important cases. Techniques involving the collapse. Partial demolitions (conservative); lateral fall; vertical fall; implosion. Mixed methods, special problems (parts of bridges, viaducts, etc.). Water infusion. Techniques not involving the collapse; progressive demolition (disassembling) from the top; sectioning. Unwanted effects and their control; fall outside the expected area, throws; vibrations; air blast; noises. Meaningful examples and analysis of real cases (both civil and industrial demolitions).

In presenza

Presentazione orale

P.D.2-2 - Maggio

In funzione del numero di iscritti e delle loro disponibilità, il periodo di erogazione del corso può essere modificato. Il semestre resta tuttavia il secondo.