The proximity of the project to streets, sidewalks, and other buildings, as well as the restrictive workspace, required a state-of-the-art approach to ensure public safety and the integrity of adjacent structures.
A tower crane was used to facilitate the demolition work so that the building could be lowered on a level-by-level basis to an elevation that would permit the balance of the structure to be safely demolished by machines working from ground level. Small demolition equipment was utilized during the lowering process to systematically demolish and remove the concrete slabs, while the crane was used for lowering the beams, columns, and precast wall panels to ground level.
Covered walkways were erected for public protection along sidewalks adjacent to the site, while mast-climber platforms were installed around the perimeter of the building, not only to provide worker access but also to contain dust and debris during demolition activities.
Delsan-AIM was awarded a contract with The Minto Group to undertake the decommissioning and complete demolition of a commercial office building located in Toronto, Ontario, in the heart of the busy downtown district of Yorkville.
The building, constructed in the late 1960s, consisted of a nine-storey reinforced concrete structure with a footprint of 10,530 ft2, and included a mechanical penthouse as well as a two-level basement. The curtain wall was composed of precast panels and glazing.