CTBUH has confirmed that SkyTower, Phase Two of the first three phases of the Pinnacle One Yonge Complex in Toronto, is now 56 stories above ground, surpassing the halfway point of its construction. It is expected to top out at 105 stories (346.7 meters) and is the tallest residential building of the complex, and projected to become the tallest building in the city.
Designed by Hariri Pontarini Architects, the buildings are in a prominent location across from Toronto’s harbor, and the sleek design will reshape Toronto’s skyline once completed. With a building of such height is it extremely important that solutions are developed to speed up each cycle by automating as much of the formwork process as possible. The formwork contractor of the One Yonge Project, involved the supplier PERI in the first phase, which was constructing The Prestige Tower, a 217-meter condo building that was completed in 2022 using PERI’s RCS Climbing Protection Panel System (RCS P) together with MAXIMO Wall and SKYDECK Slab Formwork Systems.
For the second phase, PERI has delivered the ACS Core 400 Self-Climbing System to enable the formwork and working platforms for the entire elevator and stair core to be raised from floor-to-floor without the use of a tower crane and with the minimum amount of labor needed. Due to the high capacity and flexibility of the system, only six hydraulic cylinders are needed for the task. This reduces the amount of cast-in anchors into the structure to 12 pieces per floor, an industry-wide minimum. Simultaneously the core system needed to be designed to efficiently transition between the starting low-rise core geometry and the reduced high-rise core geometry without a complete rebuild of the system. PERI Canada’s Engineering department developed a comprehensive level plus one material storage platform with a hydraulic opening hatch to enable pre-cast stairs to be installed from above, yet maximize storage area in typical working conditions.
Similar to Phase One, SkyTower will receive its very own complete RCS façade enclosure system starting at a typical floor. Protection against strong winds and inclement weather is critical to ensuring overall construction site safety and the RCS P system will enable faster, safer, and more efficient construction, incorporating material cycling panels to further push productivity by shielding equipment as it is cycled up from the lower floors to the active deck. The upper floors of the tower form a tapered crown which gradually reduces the footprint of the building at every floor. The RCS P system was designed to accommodate these building geometry changes.
Learn more about PERI’s systems.
Stay informed on future progress in CTBUH Tall & Urban News.