Macdonald Block Reconstruction

Toronto, Canada

The Macdonald Block Reconstruction Project is a Design Build Finance Maintain project located at 900 Bay Street in Toronto, Canada.

Macdonald Block Reconstruction

Toronto, Canada

The Macdonald Block Reconstruction Project is a Design Build Finance Maintain project located at 900 Bay Street in Toronto, Canada.

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Challenge

The presence of archaic materials, e.g., terracotta, in the existing structure presents a challenge for assessing its fire performance as comparably little is known/studied on its material properties or behaviour and performance in fire.

Solution

Data on the fire performance of materials with comparable material properties is used to underpin the analysis of terracotta assemblies. For example, literature on clay-like materials was used as a reference. As well, extensive testing was conducted on all archaic materials to fully understand their mechanical properties and existing detailing.

Challenge

As a reconstruction project, any fire engineering interventions are limited by the boundaries of the existing structure. Where existing structural assemblies do not achieve the required fire-resistance ratings, upgrading works must be practical and as non-invasive as possible.

Solution

Engineering Judgements were developed for numerous conditions where the existing structure required renovation to achieve the required fire-resistance rating. The final solution in each case was developed in close collaboration with the constructor, architect, and client to ensure the details were efficient while meeting all building code and project specific requirements. This ensured existing materials were re-used as much as possible, also improving the environmental impact due to demolition and rework.

Learn more about how Entuitive approaches engineering challenges, and discover why Engineering Performance matters for your project.

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