Episode 115 - The Gap That Saves Buildings

In this episode, we dive into facade engineering and explore how building skins are designed to accommodate wind, seismic drift, thermal movement, construction tolerances, and long-term building behavior. We discuss the different types of facade systems, the loads they are designed for, and why movement joints are one of the most critical and often misunderstood parts of facade design.

The conversation covers slip joints, story drift, facade deflection criteria, joint sizing, masonry veneer challenges, and the coordination required between structural engineers, facade engineers, architects, and contractors. We also discuss common detailing mistakes, constructability concerns, and practical lessons engineers can apply to improve facade performance and reduce costly field issues.

Schematic Detail provided by BHB

 

If you would like the presentation slides or access to the presentation recording by Jeff, reach out to him at Jeff.Thomas@bhbengineers.com. 

 

Jeff also suggest for additional expertise on this topic, connect with Kirsten Zeydel with Nevell Group. She gives an excellent presentation about all these tricky slip conditions.

LinkedIn: https://www.linkedin.com/in/kirsten-zeydel-48212495/

Email: kzeydel@nevellgroup.com

Additional Resources: 

https://nvlpubs.nist.gov/nistpubs/gcr/2016/NIST.GCR.16-917-38.pdf?utm_source=chatgpt.com

https://www.structuremag.org/article/challenges-in-cladding-design/ 

https://www.bhbengineers.com/articles/a-new-approach-exterior-metal-stud-design

 

Guest Profile:

Jeff Thomas, PE, is a Senior Associate at BHB Structural Engineers with extensive experience in building design, seismic engineering, and project leadership. A graduate of the University of Utah, Jeff has spent his career helping deliver a wide range of structural projects throughout the western United States while mentoring the next generation of engineers.

Sponsor: 

This episode is brought to you by CalcBook, the go-to calculation platform built specifically for structural engineers. Whether you're designing steel connections, concrete members, or timber framing, CalcBook helps you create transparent, organized, and code-referenced calculations in a fraction of the time.

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