By Robin MacLennan
Ontario Construction News staff writer
Since groundbreaking in April 2018, the Michael Garron Hospital site in Toronto has celebrated milestones including the demolition of E-Wing and F-Podium, drilling of 533 cessions 24 metres below the surface, the excavation of 65,000 cu. m. of soil, and the installation of two tower cranes.
“Once caisson drilling and excavation was completed, EllisDon began to prepare the caisson wall by grinding off excess concrete” says Gabriele Mabrucco, superintendent at EllisDon.
“This made the surface of the wall flat, which provided a suitable substrate to allow for waterproofing installation. The team then began the installation of the waterproofing membrane around the perimeter of the excavation. The lowest portion of the hospital’s four storey parking garage is 8m below the water table, so waterproofing is critical to ensure that there are no leaks in the perimeter walls.”
Once the waterproofing was set in place, the installation of rebar and pouring of concrete was able to commence to form the substructure’s (the portion of the structure below the surface) foundation walls, structural columns and floor slabs. “As of the end of December, EllisDon will have poured the last piece of structural slab for the substructure,” says Gabriele.
Over the next several months the superstructure (the portion of the structure above the surface) will emerge starting on the west side of the campus and moving in a counter-clockwise direction. Once EllisDon reaches the fifth floor, two temporary hoists (elevators) will be installed at the south side of the building to help lift and distribute materials within the structure.
To date, approximately 11,000 cu. m. of concrete have been poured, with an additional 15,000 cu. m. remaining. All concrete required for the Patient Care Centre is anticipated to be poured by summer buy lorazepam online US 2020.
Once the structure has been poured and the concrete has cured, EllisDon will begin to wrap the perimeter of the building with three types of exterior cladding: masonry (brick), aluminum paneling, and curtain wall (windows). The masonry selected for the Patient Care Centre will tie the new facility into the fabric of the existing campus, while the aluminum paneling and curtain wall will help give the facility a refreshed, modernized appearance.
The project includes:
- The creation of an eight storey Ken and Marilyn Thomson Patient Care Centre and adjoining three-storey building at the corner of Coxwell and Sammon Avenues
- Demolition of several outdated wings (A, B, C, E, F wings and D podium),
- Four storey underground parking lot, and
- Renovations to existing spaces.
Coming up in 2020, interior finishes for the Ken and Marilyn Thomson Patient Care Centre and three-storey podium begins, along with construction of exterior building envelop/façade.
The Ken and Marilyn Thomson Patient Care Centre and three-storey podium will be completed.
Renovations to existing spaces including maternal newborn and child clinics, food and retail services, diagnostic imaging, and child and youth out-patient mental health programs will start in 2022.
Funding for the facility is provided by both the Ministry of Health and long-term care and Michael Garron Hospital. The hospital is required to contribute $125 million towards the $500-million total cost of the project, resources that are generated primarily through fundraising.
The Ken and Marilyn Thomson Patient Care Centre is currently scheduled to be completed in 2021. Renovations throughout the hospital and demolition of A, B, C, F & D podium will take place from 2021 until 2024. The hospital will remain fully operational during this time.