The url links below will lead you to the Canadian Institute of Steel Constructio
ID: 1712079 • Letter: T
Question
The url links below will lead you to the Canadian Institute of Steel Construction (CISC) website, which gives a brief description of award winning engineering projects in Canada (by province and year):
http://www.cisc-icca.ca/awards/
Each team is asked to select one of those successful projects (pick the
province of your choice) for Year 2013 and perform a more detailed research (online) to answer the following questions:
a) What is the purpose of this structure?
b) What is its use and occupancy category?
c) What is its importance category according to NBCC 2015?
d) List the structural performance criteria of the project mentioned in the description (or from your more detailed research) – at least 5.
e) List the non-structural performance criteria that influenced the design – at least 5.
f) List design considerations related to environmental issues.
g) Who are the key stakeholders and participants involved in the design team?
h) What are the attributes that made this project a "good" design.
Make sure to report all the sources of information you use.
Explanation / Answer
a) professional office complex at Peter and Richmond Streets in Toronto’s downtown core
b) Busniness group B; group 2 (https://www2.iccsafe.org/states/newyorkcity/Building/PDFs/Chapter%203_Use%20and%20Occupancy%20Classification.pdf)
c) Importance factor -1.25 (http://www.sigi.ca/engineering/civl510_2011/Design%20of%20a%20Simple%20Building%20Using%20NBCC_IBC.pdf)
d) After a year of research and development, the team found a solution to structurally support the new tower over the top of the existing historic structures. They designed Mega Delta Frames—using three, each is capable of supporting forces of 80,000kN. The legs of the Mega Delta Frames are pressure-filled with concrete which, in composite action with tubular steel sections, contributes to the structural capacity of the frame and further contributes to the relative slenderness of the legs. Each leg is 40-inches in diameter with a steel thickness of 2-inches. The inherent lateral stability of the Mega Delta-Frames provide the majority of the building’s structure, allowing for only a single reinforced concrete stair and elevator core to descend down through the atrium, thus providing full visual exposure.
The Mega Delta Frame and the other steel elements were designed using, the Building Information Modeling tool, Revit. The design model was directly imported into structural design software supported by Finite Elements Method (FEM), where each structural element was checked on strength and deflections.
The BIM platform was also used by steel and cast node fabricators to resolve connection details, address the geometrical challenges for supporting the building envelope, and to allow for the optimization of a node for use at the central junction of the Delta Frames, which:
(http://www.sweenyandco.com/project/qrc-west/)
e)
f) Targeting LEED® Gold certification, sustainable features of the building may include a cistern for collection and reuse of rainwater, daylight harvesting with solar shading and light shelves, a building technology platform and all glare-free indirect lighting
(http://www.sweenyandco.com/project/qrc-west/)
g)
developer: Allied Properties REIT
builder: Eastern Construction, Allied Properties REIT
architect: Sweeny &Co Architects Inc.
sales: CBRE Toronto, DTZ Barnicke
engineering: Stephenson Engineering
green infrastructure: DeepRoot Green Infrastructure
signage/wayfinding: Kramer Design Associates Limited
other: DeepRoot Green Infrastructure
(http://urbantoronto.ca/database/projects/qrc-west-queen-richmond-centre-west)
h)
(http://www.diac.on.ca/press/toronto-region-board-of-trade-panel/)
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