The Structural Engineering Podcast

In this episode, we explore the unique challenges of structural engineering in existing buildings, where the drawings don't always match what's actually in the field. We discuss how engineers navigate unknown conditions, undocumented modifications, aging materials, and the constraints that can make seemingly simple projects incredibly complex.
We also dive into creative problem solving how to avoid getting stuck on the first workable solution, think beyond conventional approaches, and find better ways to work within an existing structure. From deformation compatibility and load redistribution to constructability and historic building practices, this episode explores what existing buildings can teach us about becoming better structural engineers.
Guest Profile:
Dan Sloat, S.E., is an Associate Principal with Degenkolb Engineers in Seattle, where his work focuses on structural engineering, seismic evaluation, and the challenges of existing buildings. He earned his B.S. in Structural Engineering from Rice University and his M.S. in Structural Engineering from the University of Washington. Dan is passionate about creative problem solving and finding practical solutions within the constraints of existing structures topics he recently presented on at NASCC: The Steel Conference.
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structurEd (our free PE/SE study tool): TheEngineeringPodcast.com/structurEd
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In this episode, we take a closer look at the concrete mixture requirements structural engineers encounter in ACI 318. We explore where the familiar values for water-to-cementitious-material ratio, air content, aggregate size, cement type, and durability requirements come from—and what they mean for the concrete we specify on our projects. We discuss how ACI durability exposure classes influence mixture requirements, including maximum water-to-cementitious-material ratios, minimum specified strength, air entrainment, and other material requirements. 
Guest Profile:
Tyler Ley is a professor and concrete researcher whose work focuses on concrete materials, mixture proportioning, durability, cement chemistry, air entrainment, curing, and field performance. Through his research and educational work, Tyler has become known for making complex concrete concepts accessible to practicing engineers and for emphasizing the connection between concrete mixture design and real-world performance.
Links & Resources:
Tyler Ley on YouTube: YouTube.com/@TylerLey
Tarantula Curve resources: ConcretePavements.org
structurEd (our free PE/SE study tool): TheEngineeringPodcast.com/structurEd
And as promised ~7 videos I really liked to help me learn about concrete mixes:
Introduction to Concrete Mix Design
How to Make Concrete Last 100 Years
Aggregate in Concrete Mix Design
Compressive Strength and Water-to-Cement Ratio
Why Do We NEED Air Bubbles in Concrete?
Intro to Curing Concrete
Tarantula Curve
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In this episode, we explore what's next for the American Institute of Steel Construction (AISC) and the future of structural steel. We discuss how AISC's role extends beyond the Steel Manual, how research makes its way into the codes and standards engineers use every day, and the trends shaping the steel industry over the next decade.
We also dive into AISC's 2033 Initiative and what it could mean for engineers, fabricators, and the broader steel industry. Finally, we look at the next generation of structural engineers where new graduates are excelling, where they need more development, and what young engineers should learn to become better steel designers.
Guest Profile:
Dr. Christopher Raebel, P.E., S.E., Ph.D., is Vice President of Engineering and Research at AISC, where he oversees technical activities including standards, research programs, and technical publications. Before joining AISC, Chris spent 12 years in structural engineering practice and later served as a professor, department chair, and director of the Architectural Engineering Program at the Milwaukee School of Engineering. His expertise includes structural steel design, connections, structural robustness, floor vibrations, and engineering education.
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structurEd (our free PE/SE study tool): TheEngineeringPodcast.com/structurEd
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In Episode 122, we explore a question that goes beyond how we design buildings: how do we make our communities more resilient before disaster strikes? We discuss the growing challenges of natural disasters, infrastructure risk, insurance, and the economic consequences of rebuilding after the fact — and why simply designing for the minimum code requirements may not be enough.
We also dive into what it means to "future proof" America, and how engineers can play a role in connecting technical solutions with government, finance, insurance, technology, and community investment. From disaster mitigation and resilience standards to finding new ways to fund projects before a disaster occurs, this episode challenges us to think about structural engineering as part of a much larger system of risk and resilience.
If you like learning about this side of Engineering check out the Disasters Expo conference in mid-October.
Guest Profile:
Richard S. Seline is the Chief Executive and Development Officer of ROAR Partners and Executive Director of the Future Proofing America Collaborative. With more than 40 years of experience connecting government, industry, academia, investment, and communities, Richard has worked on hundreds of projects focused on resilience, economic development, and disaster risk mitigation. His work with ROAR and Future Proofing America focuses on shifting the conversation from recovering from disasters to investing in communities before disasters happen — and developing the standards, resources, and financial mechanisms to make that possible.
Sponsor:
This episode is sponsored by The Resilient Architecture and Structural Engineering Expo.
Links & Resources:
Richard Seline on YouTube: youtube.com/@rseline
Future Proofing America: futureproofingamerica.org — The initiative Richard leads, focused on building a more resilient and future-ready America.
Resilience Community Navigator: resiliencecommunitynavigator.org — Resources for navigating community resilience and disaster mitigation.
ROAR Partners: roarpartners.co/about — The "think tank-do tank" collaboration behind much of this work.
FEMA BRIC Program: FEMA Building Resilient Infrastructure and Communities — Federal funding for projects designed to reduce disaster risk and increase community resilience.
FEMA Hazard Mitigation Assistance: FEMA HMA Programs — Overview of federal hazard mitigation funding programs.
Fitch Ratings — Climate Vulnerability in Infrastructure Project Finance: Fitch Ratings — Proposed criteria for incorporating climate vulnerability into infrastructure project finance ratings.
Stimson Center — Climate-Responsive Resilient Building Codes: Stimson Center — Research on incorporating climate risk and resilience into building codes and standards.
World Bank Climate & Disaster Risk Screening Tools: climatescreeningtools.worldbank.org — Tools for assessing climate and disaster risk during project planning.
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In this episode, we explore the future of structural engineering and what it will take to continue pushing the profession forward. We discuss why innovation can be difficult in a risk-averse industry, how performance-based design is changing the way engineers approach complex structures, and whether our reliance on codes and software is beginning to replace first-principles thinking.
We also dive into the growing role of AI in structural engineering—where it could accelerate design and innovation, where it could create new risks, and what should always remain the responsibility of the engineer. Finally, we discuss the curiosity, judgment, and problem-solving skills that will define exceptional structural engineers over the next 50 years.
Guest Profile:
Ron Klemencic, P.E., S.E., Hon. AIA, is Chairman and CEO of Magnusson Klemencic Associates (MKA) and a recognized leader in structural engineering innovation. Throughout his career, Ron has helped advance performance-based design and pioneered new structural systems, including SpeedCore. His work on complex and high-rise structures around the world has earned him numerous industry honors and membership in the National Academy of Engineering.
Sponsor:
This episode is sponsored by CalcBook — the modern way to perform and document your structural calculations. Visit calcbook.com and use promo code SEPOD for 50% off your first three months.
Links & Resources:
StructurEd (our free study tool): TheEngineeringPodcast.com/StructurEd
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