EDMONTON, AB
Lendrum Redevelopment, Protection of Adjacent Buildings
The Lendrum Redevelopment scheme located at 11420 60 Avenue in Edmonton encompassed two affordable housing apartment towers.
Both towers are light-frame timber construction.
The towers surround a courtyard, commercial retail space, public thoroughfare, and a connected underground parking structure.
PROJECT HIGHLIGHTS
CLIENT
Capital Region Housing Corporation
ARCHITECT
RPK Architects
OUR ROLE(S)
Fire Engineering Consultant
SIZE
-
BUDGET
-
MARKET (OFFICE)
EDMONTON
KEY CONSIDERATIONS
Challenge One
Light-weight timber construction is particularly susceptible to fire during construction while none or little of the fire protection measures have been installed.
At the Lendrum Redevelopment, the proximity to neighbouring buildings was a point of concern for fire spread, in particular during construction where compartmentation may not be fully in place yet, potentially leading to a large volume of the development to burn simultaneously and pose a more significant risk to neighbouring buildings.
Solution One
An analysis of radiation levels resulting from a fire during construction for both towers was performed to determine the intensity that neighbouring buildings would be exposed to. This was done from first-principles, coded into Grasshopper to determine exact radiation levels on each adjacent building surface.
This allowed the analysis to be optimized instead of using prescriptive separation tables. Mitigation measures listed in NFPA 80A were recommended to keep the risk of fire spread to adjacent buildings at an acceptable level. The first-principles approach allowed the mitigation measures to be optimized and save both material cost and time during construction.