Issue link: http://digital.canadawide.com/i/178290
structural slab, they began tying in the west wall and removed the same dimensions as the original ice, the rink is surrounded some of the bracing to complete more demolition and build by seating that starts with dasher board level 'gold' seats and more of the 'building within a building' they would use for even features a set of restored blue seats perched above either support. net at an angle some may recall as truly authentic. The structural slabs on each loor were poured in sections But building a rink 50 feet above street level is not without as they tied into the west wall, rather than pouring one entire its challenges. Not only must the structural slab be capable loor at a time. of supporting the load, it must also be protected from its icy "They were pouring them in a tiered manner," says John charge. A waterproof membrane manages against leaks but Fry of Genivar, Ryerson University's project manager. "So an important thermal barrier – an 'underslab' sandwiched sometimes when you walked in, it looked as though a terraced between the chilled rink slab and the structural slab – is what building was going up inside Maple Leaf helps regulate the temperature. Gardens." "We had to keep the underside of the Chris O'Reilly, partner-in-charge for concrete ice pad from creating moisBBB Architects, which was responsible ture on the building's second- loor ceilfor the Ryerson portion of the renoing. We solved this by using a portion of vation, likens it to building a ship in a the refrigeration's waste heat to keep bottle. the underslab of the third loor warm "We basically put a brand-new colenough to prevent condensation below," umn grid inside the four walls and at says David Sinclair of CIMCO Refrigeraevery loor the new structure is sup– Ivan Joseph, tion. A network of piping in the threeporting the old structure," he says. athletic director inch-thick underslab circulates warm With a grocery store taking up all water to keep temperatures constant. of the irst loor, save for a vertical cirBelow the rink, the second loor will culation space that allows Ryerson access to its upper loors likely hum with the din of high-performance cardio machines (designed by Greg Alexander a partner at BBB Architects), the in the state-of-the-art itness centre separated from the main third loor was the best space for the rink. What's more, this circulation space and lounge area by a 10-foot-high undulatlocation acknowledges the building's history by keeping the ing glass wall. On the west side of this loor, architects reorganized strucgame under the iconic domed ceiling. The arena is easily the building's most dramatic space with tural elements to eliminate existing columns and allow for a centre ice placed 100 feet below the white domed ceiling. With large gym capable of accommodating double basketball or " We are restoring a historic treasure and giving it back to the city." Maple Leaf Gardens – Ryerson's Mattamy Athletic Centre at the Gardens + Loblaws p.68-73Maple Leaf.indd 71 LOCATION 60 Carlton Street Toronto, Ontario OWNER/DEVELOPER Loblaws and Ryerson University ARCHITECT (MATTAMY ATHLETIC CENTRE) BBB Architects ARCHITECT (LOBLAWS AND BASE BUILDING) Turner Fleischer Architects RESTORATION ARCHITECT E.R.A. Architects GENERAL CONTRACTOR Buttcon Limited PROJECT MANAGEMENT (RYERSON) Genivar STRUCTURAL CONSULTANT Exp Services Inc. MECHANICAL CONSULTANT The Mitchell Partnership Inc. ELECTRICAL CONSULTANT Mulvey + Banani International Inc. TOTAL AREA 220,000 square feet (Mattamy Athletic Centre only) CONSTRUCTION COST $60 million (does not include Loblaws) APRIL 2012 /71 3/26/12 2:34:30 PM