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December 2013

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bathtubs, while over 60,000 cubic metres of concrete was poured – enough to construct a six-foot wide sidewalk from Surrey to Whistler and back. According to MCM, the expansion was undertaken using a mix of concrete on the lower floor, cantilevered columns on the upper level and steel roof structure. These materials were chosen for a number of reasons, including cost, availability and constructability methodology. The firm points out that the main factor when making decisions relating to these materials was to ensure a cleaner structure, with large spans that are free of shear walls, which it considers to be ideal for a retail environment. Celso Stifelmann, MCM's principal and project architect, explains that the project was a long time in the making, with Ivanhoé Cambridge initially expressing interest in redeveloping the site back in 2002. "The initial goals were to modernize the centre while at the same time respecting its history," says Stifelmann. "Ivanhoé Cambridge did not want to keep the suburban look of the centre and also wanted the expansion to be seamless - providing a fresh look, while simultaneously respecting the iconic parts of the building, such as the Hudson Bay's precast concrete ADDRESS 10355 152 Street, Surrey, B.C. OWNER/DEVELOPER Ivanhoé Cambridge ARCHITECT Musson Cattell Mackey Partnership CONSTRUCTION MANAGER Ledcor Construction Ltd. STRUCTURAL CONSULTANT Read Jones Christoffersen Consulting Engineers MECHANICAL CONSULTANT MMM Group ELECTRICAL CONSULTANT S + A Falcon Landscape architect PWL Partnership civil consultant Aplin & Martin Consultants Inc. TOTAL AREA Expansion Project: 890,000 square feet TOTAL CONSTRUCTION COST $280 million Guildford Town Centre Expansion p52-55Guildford Expansion.indd 55 facade and the centre's complex glass pyramids." He adds that from a structural standpoint there were no unusual characteristics relating to the expansion portion of the project, but admits there were challenges in the renovation of the existing building that was redesigned to create a more efficient mall configuration. This was a result of several elements not being included in the record drawing, used as a basis for the design. The team overcame this obstacle by obtaining updated plans from mall operations, utilizing plans that were stored in the MCM archives from previous projects and by working with the project's structural engineer, Read Jones Christoffersen, to remove some of the old shear walls and cross bracing. "This collaboration was essential as we wanted to create a more flexible and clean plan for Ivanhoé Cambridge to manage future changes relating to redemising spaces within the old building being renovated," says Stifelmann. The new cast-in-place concrete structure required approximately 18,200 cubic metres of concrete and 910,000 kilograms of structural steel. The exterior is a combination of brick veneer units, glazing and an exterior insulation and finishing system (EIFS). Some of Guildford Town Centre's new features include a high albedo (reflective) thermoplastic polyolefin single-ply (TPO) roof, while its skylight system has been replaced with a highend performance glazing system, which will reduce heat gain and cooling loads. In addition to new lighting, the existing mall underwent extensive renovations and now features new floors, ceilings, railings and soft seating. Five new entrances were added, while another five were renovated. Aside from its corporate and environmental aims, the project has also been praised for boosting local job growth. At a private event held in honour of the expansion, Bruce Hayne, elected councillor with the City of Surrey, explained that the expansion will create 750 full- and part-time jobs, making Guildford Town Centre one of Surrey's largest employers. n Courtesy Ivanhoé Cambridge december 2013    /55 13-11-15 3:56 PM

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