Practical applications · Design principles · Professional development · What to Change in Your Structural Model to Gain Real Confidence

You’ve built the model in your go-to software, the geometry is correct, the loads are on, and the analysis runs without errors. But deep down, there’s a nagging question: does this model truly represent how the building will behave? Gaining real confidence in our structural models means moving beyond the default settings and challenging the convenient assumptions we often start with. It’s about embracing the philosophy of engineered precision found in Part 4 over the prescriptive paths of Part 9.

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Standards · Design principles · Practical applications · Professional development · Decoding the NBCC Wind Commentary

Let’s be honest, NBCC Part 4 can be dense. When you get to wind loads in Section 4.1.7, it’s a flurry of equations, factors, and tables. You know the rules are in there, but what about the ‘why’? Why is the gust factor 2.0 for the main system but 2.5 for cladding? When do you really need to jump from the Static to the Dynamic Procedure?

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Standards · Design principles · Practical applications · Unpacking the Key Wind Design Changes in NBCC 2020

Another code cycle, another round of changes to get our heads around. Just when you think you’ve got your spreadsheets perfected, the new National Building Code of Canada (NBCC) lands on your desk. While the 2020 edition brought updates across the board, the wind load provisions in Subsection 4.1.7. have some particularly noteworthy changes that are already impacting our designs.

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Standards · The “Why” Behind NBCC’s Snow Load Factors

If you’re a structural engineer in Canada, you’ve stared at this equation more times than you can count:

$$S = I_s[S_s(C_b C_w C_s C_a) + S_r]$$

It’s the backbone of our snow load calculations, a formula we trust to keep our buildings standing through the harshest Canadian winters. It’s important to remember this detailed formula is from NBCC Part 4; the approach for simpler structures is different, as we’ve covered in our guide to wind and snow loads in Part 4 vs. Part 9.

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Standards · Design principles · Practical applications · A Structural Engineer’s Guide to the Journey of Snow

Here we go again. The first heavy, wet snow of the season is plastering everything in sight, and you get that familiar call from an architect. “We’re looking at a large, flat roof on this new project. What kind of snow load do we need?”

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Standards · Design principles · Practical applications · Industry insights · A Practical Guide to NBCC 2020 Snow Loads on Modern Roofs

Solar panels, architectural sunshades, and complex multi-level rooflines are no longer the exception; they’re the norm in modern Canadian building design. While they score points for energy efficiency and visual appeal, they also create a minefield of unexpected snow and ice loads for structural engineers.

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