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CIBC Square

81 Bay St., Toronto, Ontario

Toronto adds state-of-the-art office space

With an unobstructed panoramic view of Lake Ontario and the beautiful downtown Toronto skyline, CIBC Square will soon be part of the Toronto scene. As a multiphase commercial office complex comprised of two towers, it also contains a one-acre elevated park which will connect the two buildings. The first of the two towers being built is 81 Bay Street. This tower will have 49 floors and contain 1.5 million square feet of state-of-the-art offices and collaborative spaces.

CIBC Square will be engineered to LEED Platinum and WELL specifications. This means that it was designed not just for resource efficiency, but also with its users' health, wellness and quality of life in mind. This can be attributed to the high-efficiency energy and water solutions, highly optimized air filtration and ventilation, bicycle storage racks and access to shared green spaces.

The tower is built of steel and concrete with floor-to-ceiling acoustically optimized windows. It is designed with maximum efficiency using open floor plates and state-of-the-art infrastructure. Structform International, the contractor, brought in Doka for this project due to their known reputation for outstanding service and equipment. Additionally, the contractor had confidence in Doka’s products.

The building is being constructed using self-climbing gantry suspended core walls that climb 1.6 storeys at a time. The construction of the tower is using a 7.1-meter custom Doka Super Climber SCP self-climbing platform, since CIBC Square requires 6.83-meter lifts for the core walls. With the Super Climber, the entire core formwork is hydraulically raised indepentently of the crane. During the construction, the cycle time is varied depending on the area. Low-rise uses a 7-day cycle time, mid-rise a 5-day cycle time, and highrise a 4-day cycle time. Due to the design, it can be difficult to access climbing systems and platforms at some stages, so Doka worked closely with the contractor to find the best solutions for the project.

The Challenges

  • CIBC Square required 6.83m lifts for the core walls.
  • Additionally, it was difficult to access climbing systems and platforms at different stages.

The Solution

  • Doka is known for excellent formwork solutions. With their customerdriven service and engineering, Doka and the contractor could work closely together to find the best solutions for the project.
  • A 7.1-meter custom Doka Super Climber SCP self-climbing platform was used for the 6.83 meter lifts period.
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Project data

Project Name
CIBC Square
Location
81 Bay St., Toronto, Ontario
Construction work
performed by

General Contractor: EllisDon Construction Services Inc. Concrete Contractor: Structform International Ltd.
Architect
Design: WilkinsonEyre, Architect of Record: Adamson Associates
Developer
Ivanhoe Cambridge, Hines Canada Management Co. ULC

Building data

Type of structure
Commercial highrise
Height
Tower I: 780 ft.
Storeys
Tower I: 54 floors
Sq. Ft.
Tower I: 1.5 million sq. ft.;
CIBC Square Sq. Ft. Total:
3 million sq. ft.
Construction time
Tower 1: 2017 - 2020;
CIBC Square and Elevated Path:
2022 - 2023