SEH Series

CHUM Research Center

Montreal, QC, Canada, 2013

As part of the construction project for the new CHUM, Fraco took up the challenge of accelerating the construction of a research center by providing a two-car construction hoist for the transportation of persons and materials.

The CHUM-RC is the first phase in the redevelopment of the Centre hospitalier de l'Universite de Montreal. The new campus will be relocated in front of the Research Centre and will be fully integrated to the latter. The Research Centre consists of two towers of 16 and 6 floors with a surface area of approximately 740 000 square feet.

During the work period, the construction site had to deal with an important influx of workers and materials. For example, more than 500 employees worked on the site during peak periods. In addition, the construction of two towers needed 100,000 concrete blocks which were mostly placed inside the building. To facilitate supply on floors, blocks were moved by using a pulley system with a load capacity of 5 000 pounds. This among other things allowed not to monopolize indoor and outdoor hoists. Finally, some 1,6 millions cubic feet of concrete were poured in eight months.

Until now, the main challenges of the site were twofold: 1) the time which was very short for a building of this size; 2) space, because the site is small and built in a residential area. In addition, the construction is performed over a subway track and a highway. In order to accelerate the access of materials on floors, two Fraco SEH-6000 construction site hoists were installed on the eastern side of the tallest tower. The SEH-6000 is provided with a rack and pinion lifting mechanism. A counterweight system was also used for the project. Both cabins were mounted on a mast of 285 ft. Each cabin measured 12 feet 6 inches in length, offering a payload capacity of 6 000 pounds and was moving at a speed between 0 and 330 feet per minute. Sixteen landing doors were used to guarantee a safe access to each floor. The Fraco hoist had to be efficient and effective because both elevators were used from 5:30 AM to 7:30 PM, six days a week.