b'FEATUREDeveloper: Cadillac FairviewArchitect: Adrian Smith + Gordon Gill Architecture & B+H Architects Structural Engineer: RJC EngineersSteel Fabrication and Erection: Walters GroupConstructor: PCL ConstructionAn extreme set of inclined columns was required atthetowerinletfloors:anarchitecturalfeature where the building face steps back on the east and west sides of the tower to create a mid-tower terrace. The significant column-cranked offset of 2.5 metres over two floor levels creates a significant axial force in the steel floor diaphragm and, eventually, into the concrete core. This combined with differential movementbetweenthestructuralsteelcolumns and the concrete core creeping over time required innovativesteelconnections.Twodetailswere developed to ensure efficient axial force transfer, and also to limit significant bending on the shallow axial members created by the differential movement. Thehighaxialforceconnectionbetween floor diaphragm and the concrete core required pre-stressed Dywidag rods embedded in the core walls. The design team determined that a true pin connection between the rods and the structural steel was the best approach to limit member bending due to vertical core movement and to develop the large axial force connectiona connection that could only be realized in steel. The pin detail and the Dywidag Galvanize BETTER for a Sustainable Future stressing sequence was also an iterative process, Corbec is the leading hot-dip galvanizer in Canada, offering unrivaledwith Walters and RJC Engineers working through service, unparalleled expertise and bold innovation.Why Galvanize? Hot-Dip Galvanizing is the ONLYconnection clearances, dead and live stressing end Sustainable Solution for Steel locations and the best configuration of the pin itself \x1f Maximum Protection Results in a Lower Carbon Footprinta challenge that could not have been overcome \x1fDurability & Adaptability\x1f Longevity The Only Sustainable Choice for thewithout collaborative design and planning and the \x1f Maintenance Free Full Life Cycle of Steel use of a structural steel system. \x1f Best Return on Investment The 1 stChoice for Architects & EngineersCorbec specializes in galvanizing a wide range of structures andTop It All Offmetal products, including Theiconictoweristoppedwitha45-metre-tall Buildings Windmills Bridges & Roads OEM Products curved structural steel volume that is home to a Steel Structures Towers & Electric Power Grids and more! 23-metre-tall glass architecturally exposed atrium State-of-the-Art Facilities withexposedCastConnexDiabloconnections, Hamilton | Montreal | Quebec | Halifax a building maintenance unit including a 12-metre Our experts can offer you guidance: 1-800-463-8313 wideoperableslidingdoorandthemechanical Email us at: reception@corbec.com penthouselevels.Beyondthecurvedstructure www.corbec.combeing geometrically complex where only structural 34|WINTER 2023/2024 ADVANTAGE STEEL'