21 March 2020, 14:46
CIBC Square meets high specifications with Super Climber
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 that 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 climb and pour core walls, climbing 1.5 stories 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 independently 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 high-rise a 4-day cycle.
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.
Tower 1 is scheduled for completion by 2020.
The Challenges:
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CIBC Square required 6.83m lifts for the core walls.
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Additionally, it was difficult to access climbing systems and platforms at different stages.
The Solution:
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Doka is known for excellent formwork solutions. With their customer-driven service and engineering, Doka and the contractor could work closely together to find the best solutions for the project.
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A 7.1-meter custom Doka Super Climber SCP self-climbing platform was used for 6.83-meter lifts.
The Facts:
Project Name: CIBC Square
Location: 81 Bay St., Toronto, Ontario
Construction work performed by:
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General Contractor: EllisDon Construction Services Inc.
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Concrete Contractor: Structform International Ltd.
Architect:
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Design: WilkinsonEyre
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Architect of Record: Adamson Associates
Developer:
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Ivanhoe Cambridge
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Hines Canada Management Co. ULC
Type of structure: Building – Commercial Highrise
Height: Tower I – 237.8m / 780ft,
Stories: 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
Doka Equipment Used:
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Core: Framed Formwork Framax S Xlife, Large Area Formwork Top 50, Super Climber SCP (self-climbing platform), Xclimb 60, and SKE 100+
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Reshoring: Doka Superprops
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Shoring: Doka Superprops, Eurex props, and Staxo 100
Source: Doka