Analysis, Design & Performance

Full Session without Abstracts

343201 - Need to Know: Thermal Bridging

Friday, April 20
9:30 AM - 10:30 AM
Location: 204AB

The presentation will provide structural practitioners state-of-the-art strategies and essential reasons to minimize thermal bridging energy losses caused by structural elements penetrating a building envelope. The presentation will highlight elements and foster the implementation of integrating structural designs and building energy impacts with research of comprehensive connection details and design methods; life-cycle assessment for comparing operational and constructed energy balances, new developments; and analysis of structural materials as they interact at a building’s thermal boundary. The work will illustrate and demonstrate:
- Structural engineering choices that can make a big difference in a building’s energy performance over the life of the building, as thermal bridging of structural elements across the building’s insulation plane can cause drastic energy loss.
- Structural engineering and thermal assessment methods for façade and framing connections that can be conducted as part of standard design and construction.
- Developing Industry code requirements and current construction practices can be understood and anticipated to develop cost-effective and market-leading design practices.
- Durability effects for connections at existing building facade structural work
- Options and resources for structural material to reduce conductivity
- Steel connection sponsored by AISC and Pankow on thermal break connections
- Energy study comparisons using thermal break materials and connections
- Effects on developing modified building enclosure systems and detailing on structural designs.
- Issues with current industry design guides for façade and roof element support
- Comparative environmental impacts of implementing insulative structural designs with embodied impacts from materials contrasted with operations energy effects

David DeLong

Project Manager
IC Design Servcies

Dave DeLong, P.E., S.E. Project Manager at IC Design Services and ASCE SEI Sustainability Committee Chair
Interest Areas: Designing structures at the building envelope to be more thermally efficient to reduce environmental impacts, generating practical sustainable design standards for the structural engineering community, committee presentations / outreach... and craft beer!


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Russ Miller-Johnson

Structural Group Coordinator
Engineering Ventures, PC

ASCE SEI Sustainability Committee


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Scott Hamel

Associate Professor, Structures
Dept. of Civil Engineering; University of Alaska Anchorage

Scott Hamel, PE, SE, PhD is an Associate Professor at the University of Alaska Anchorage (UAA). Originally from New Hampshire, he completed a B.S. in Civil Engineering at Worcester Polytechnic Institute in Massachusetts and a master’s in Civil Engineering with an emphasis in structures at the University of Colorado at Boulder. After earning his license as a Professional Engineer in Colorado, he returned to school and completed his doctorate at the University of Wisconsin-Madison in structural engineering. Hamel joined the faculty at the UAA in 2011, where he teaches undergraduate and graduate-level courses in structural engineering, including Structural Analysis and Steel. His current research includes characterizing the performance of plywood/polyurethane Structural Insulated Panels (SIPs) and the mechanical characterization of Wood-plastic Composites. He has recently completed projects on anchor-nut loosening of high-mast light poles for the Alaska Department of Transportation, and thermal and mechanical performance of structural thermal bridges and breaks in building envelopes for the American Institute of Steel Construction (AISC).


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Emily Lorenz

Director, Sustainability and Publications
Precast/Prestressed Concrete Institute

ASCE SEI Sustainability Committee member Emily B. Lorenz, PE, is Director of Sustainability and Publications at the Precast/Prestressed Concrete Institute (PCI). Lorenz is the vice chair of ASTM E60, Sustainability, and is a member of ACI 130, Sustainbility. She has written several articles and given over 40 presentations on the topics of life-cycle assessment, green building codes and standards, resiliency, and sustainability.


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Don Allen

Director of Engineering
Super Stud Building Products, Inc.

Don Allen, P.E., LEED A.P., SECB, has been involved in cold-formed steel framing design since 1990, and currently serves as Director of Engineering for Super Stud Building Products. He chairs the Education Com¬mittee of the American Iron and Steel Institute, and is actively involved in the development of ASTM and AISI standards. Having spent more than a decade in private practice and served over nine years as technical direc¬tor for both the Steel Stud Manufacturers Association (SSMA) and the Cold-Formed Steel Engineers Institute (CFSEI), Allen has seen firsthand what works and what does not in framing design. Allen lectures and writes about cold-formed steel (CFS) design and construction issues regularly, and is the 2013 recipient of the Cold-Formed Steel Engineers Institute (CFSEI) Distinguished Service Award. Allen serves on the ASCE SEI Committee on Sustainability and Committee on cold-formed steel.


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Ken Maschke

Vice President
Thronton Tomasetti

Ken Maschke, P.E., S.E., LEED AP is a Vice President at the Toronto office of Thornton Tomasetti. He also participates in the ASCE SEI Sustainability Committee. Ken is responsible for the growth of the Renewal and Forensics practices in Canada. An expert in building failure investigation, structural rehabilitation, recladding and adaptive reuse projects, Ken recently relocated to Toronto after spending 14 years in the Chicago office.


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Jerome F. Hajjar

CDM Smith Professor and Chair
Northeastern University

CDM Smith Professor and Chair of the Department of Civil and Environmental Engineering, Northeastern University.


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343201 - Need to Know: Thermal Bridging

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