Slim Floor Structures

Slim Floor Structures

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Thursday, March 19, 2015

Flexible Design with Hollow Core Slabs: Deltabeam Project


The new Deltabeam building system is being used for the first time in Ottawa, Ontario. For this multi-storey apartment project, Deltabeam has provided a considerable advantage: increased design flexibility. Among other features, the building incorporates an architecturally challenging fa├žade, complex geometry and a slim floor structure requirement.  


‘’Deltabeam solved many of our design challenges: the system enabled us to minimize the depth of our structure’’ explains Leonard Koffman, lead architect for 80 Bolton. Indeed, Deltabeam is designed to fit within the precast floor. Hollow core slabs land on the bottom plate of the beam, which allows the floor structure to have the same thickness throughout. In the case of Bolton, the uniform floor depth is 8’’ + 2’’ topping. 


One of the key partners for this project was Beaudoin Construction. Beaudoin shined on Bolton street through rigorous project management and focus on customer satisfaction. ‘’ For Bolton, we wanted to increase the speed of construction with a concrete structure ’’ states Denis Stocker, VP Business Development at Beaudoin. ‘’ With Deltabeam, we were able to deliver a quality structure built within a tight schedule’’.



A hollow core structure is quick and easy to install. With minimum concrete poured at the job site, this structural system is mostly produced at a precast plant and simply lifted into place onsite. While speed of construction is second to none, hollow core sometimes faces one major challenge: design flexibility. On the Bolton Street project in Ottawa, Deltabeam made it possible to take advantage of the increased speed of construction of hollow core while maximizing design flexibility. The architecturally demanding facade was achieved through the cantilever of the Deltabeam (see picture below). The complex geometry of the building (set back on the third level) was managed with Deltabeam transfer beams. 








Tuesday, March 17, 2015

Deltabeam is a solution for Parking Structures

Peikko Connections: Car parks vs. car parks. Deltabeam is a solution.: This is a picture taken by my colleague in Beverly Hills, California, next to Macy´s department store. Build very recently.     These...

Thursday, March 12, 2015

Glasshouse: Slim Floor High Rise

Peikko Canada has been awarded the 21 storey Glasshouse condo project in downtown Winnipeg, Manitoba. Thanks to the innovative, forward thinking engineers at Crosier Kilgour & Partners, the landmark will include exposed ceilings and impressive cantilevers.

For the first time in Manitoba, Deltabeam will require no additional fire protection thanks to newly obtained ULC fire rating. This innovation by Peikko will make the exposed ceiling possible.

The 8" slim floor on each level of Glasshouse will give tenants maximum head room and help make the building more efficient. The entire project will require nearly 1.9 kilometers (1.2 miles) of Deltabeam .


Construction of the project is now officially underway and work is rapidly proceeding. Bockstael's Site Superintendent Bernie Roy is pleased to see how well all the pieces fit together thanks to Peikko's PCs Corbel Connection. Peikko's patented connection allows Deltabeam to simply be dropped in place without welding or bolting which saves time especially during winter construction. "It's surprising to see how easy it is" Roy says, "you just drop the Deltabeam on the corbels and you're done".


From left to right: Scott Vermiere (Bockstael), Bernie Roy (Bockstael) and Marty Poirier (Haywood Concrete Products).

To accommodate the cantilever balconies, Bockstael and Crosier Kilgour developed an innovative solution to minimize the thermal bridge while taking into consideration issues related to condensation.