Webinar on Seismic Performance of Cold-Formed Steel Nonstructural Walls Detailed with Movement Joints in the 10-Story Tall Wood Building Experiment
$100.00
Continuing Education Credits Available – 1.5 PDH Credits
To advance resilient seismic solutions for tall wood buildings, a shake table test program of a full-scale 10-story building with mass timber rocking walls was conducted in 2023 at the NHERI@UC San Diego outdoor shaking table. An essential aspect of building resilience is assurance that nonstructural components (e.g. nonstructural walls, facades, ceiling, piping and egress) sustain minimal damage or are easily repairable. The test specimen included a variety of cold-formed steel-framed interior walls and exterior façade assemblies that were detailed to accommodate inter-story movement with horizontal slip joints and vertical expansion joints. The design intent was to protect the walls from damage by isolating them from the movement. For the most part, the walls performed well and minimal visible damage was observed. However, the performance of various slip joints was far from perfect, and several challenges were encountered in scaling up the details from an idealized laboratory setting to a full-scale structure. Follow-up analytical studies have focused on whether basic friction models can be used to predict slip across the slip joints and subsequent drift reduction in the walls. This presentation will overview the philosophy in selecting the subassemblies, the component details, the observed performance, the highlights of the modeling efforts, and the synthesis of takeaways for the profession.
Presenter
Keri L. Ryan
Professor of Civil Engineering (Structural and Earthquake Engineering)
University of Nevada, Reno
Keri Ryan is the E.W. McKenzie Foundation Endowed Professor and Department Chair at the University of Nevada, Reno. She specializes in earthquake engineering and protective systems for high seismic performance, with application to buildings and bridges. She was the PI of the U.S. National Science Foundation funded “Tools for Isolation and Protective Systems” (or TIPS) project to address impediments to the wider application of seismic isolation systems, during which she observed firsthand the performance issues related to nonstruc-tural components. She has been collaborating with the NHERI Tallwood team since 2016 to develop and validate a resilience-based design methodology for a new class of structural systems using mass timber rocking wall systems that consider the important contributions of nonstructural components.
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically
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Webinar on Cold-Formed Steel Attachment to Concrete in Seismic Zones
Continuing Education Credits Available – 1.5 PDH Credits
For decades, Power- Actuated Fasteners (PAFs) have been used in the construction industry as a safe, reliable, and productive method to fasten various building components-such as cold-formed steel (CFS) framing-to steel and concrete. Code provisions for the use of PAFs in seismic areas for attachments of cold-formed metal framing to concrete have been subject to various interpretations. This presentation will provide recommendations based on Hilti’s understanding of the code provisions.
AISI S100-16, North American Specification for the Design of Cold-Formed Steel Structural Members, 2016 Edition (including the latest supplements), provides some basic provisions regarding calculation of the shear and tension resistance of a connection between CFS and concrete, but does not provide specific equations or values. In addition, Chapter 13 of ASCE/SEI 7-16, Minimum Design Loads and Associated Criteria for Buildings and Other Structures, includes some restrictions regarding the use of PAFs in Seismic Design Categories (SDC) D, E, and F. Chapter 13 is entitled “Seismic Design Requirements for Nonstructural Components,” so the focus is on nonstructural applications like partition walls.
This presentation is designed to clarify the intent of the language in the code-referenced publications AISI S100 and ASCE/SEI 7-16 as it relates to PAFs used to attach track to concrete, in SDC A-C and SDC E-F. The presentation will also provide practical guidance to the designer regarding which design values should be used and where those values can be obtained. Additional practical recommendations will be provided regarding the specification of various types of PAFs and their embedment depths into the concrete.
Christopher Gill, Hilti Inc.
Chris Gill is the Technical Services Manager for Direct Fastening at Hilti in Plano, Texas. He is responsible for the department which performs product testing, generates technical data, publishes technical documents, and obtains approvals and listings for power-actuated and screw-fastening products. He is a member of the American Iron and Steel Institute (AISI) Committee on Specifications, and a voting member of its subcommittees responsible for connections and joints, and diaphragm design. Chris recently participated in the 2020 NEHRP Provisions Update Committee, Issue Team 9, which addressed alternate provisions for seismic diaphragm design, and recommended new provisions for incorporation into ASCE/SEI 7. He has also contributed to the soon-to-be published ASCE/ SEI Design Guide “Cold-Formed Steel Connections to Other Materials.”
Chris has a total of 33 years working in the fastening and anchoring industry. He previously worked as a field engineer, field engineering manager, trade manager and product manager with Hilti. He holds a B.S. degree in Engineering from Brown University and an M.S. degree in Engineering and Technology Management from Oklahoma State University.
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically
Webinar on Vibration Serviceability of Floors with Cold-Formed Steel Framing
Continuing Education Credits Available – 1.5 PDH Credits
Cold-formed steel (CFS) joists and trusses have high strength-to-weight ratios and good overall economy, so they are popular choices for floor framing members. As is the case with most types of floor systems, CFS floors are potentially susceptible to vibrations due to walking and other human activities. This webinar will raise awareness of the importance of vibration serviceability by describing two forensics projects with lively CFS floors. The literature contains several floor vibration evaluation methods that might be applicable to CFS floor. However, unlike other materials, there is not a widely accepted and practical vibration evaluation method for CFS floors. Potential evaluation methods will be discussed.
Presenter: Brad Davis, Ph.D., S.E., P.E.
University of Kentucky
Brad Davis is an associate professor of civil engineering at the University of Kentucky where he is responsible for all steel design coursework and has received awards recognizing excellence in teaching. As the owner of Davis Structural Engineering, LLC, he provides consulting services for structural vibration, forensics and advanced steel design applications. He is a member of the AISC Committee on Manuals, and is a co-author of AISC Design Guide 11, Vibrations of Steel-Framed Structural Systems Due to Human Activity. Brad has published approximately two dozen journal and conference papers on vibration. He earned his Ph.D. from Virginia Tech and has eight years of experience in building design. He has S.E. and P.E. licenses in 14 states.
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically
Webinar on Cold-Formed Steel Classroom: Design Topics Not in a Design Standard
Continuing Education Credits Available – 1.5 PDH Credits
Last year alone the CFSEI Hotline responded to over 4,800 inquires. These inquires cover the gamut of cold-formed steel applications. Because these questions often are beyond the scope of a design standard engineering judgement is needed. Roger will review a few of the Hotline topics with a focus on employing engineering principals to solve everyday design considerations. Topics to be addressed are:
- Should loose straps be a concern?
- Does gypsum between the steel plies impact the screw connection strength?
- For the single-side strap brace, what are the implications for the design of the boundary post?
- How does one design a shear wall for force transfer around openings?
- What wind loading drift limits are appropriate for mid-rise structures?
Presenter: Roger LaBoube, Ph.D., P.E.
Wei-Wen Yu Center for Cold-Formed Steel Structures
Roger LaBoube, Ph.D., P.E. is Curator’s Distinguished Teaching Professor Emeritus of Civil, Architectural and Environmental Engineering and Director of the Wei-Wen Yu Center for Cold-Formed Steel Structures at the Missouri University of Science & Technology (formerly University of Missouri-Rolla). Dr. LaBoube holds B.S., M.S., and Ph.D. degrees in Civil Engineering from the University of Missouri-Rolla. Dr. LaBoube has an extensive background in the design and behavior of cold-formed steel structures. His research and design activities have touched on many facets of cold-formed steel construction including cold-formed steel beams, panels, trusses, headers, and wall studs as well as bolt, weld, and screw connections. He is active in several professional organizations and societies, including membership on the American Iron and Steel Institute’s Committee on Specifications for the Design of Cold-Formed Steel Structural Members and chairman of the AISI Committee on Framing Standards. He is a registered Professional Engineer in Missouri.
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically
Webinar on Frequently Misunderstood Wind Load Topics for Cold-Formed Steel Structures
Continuing Education Credits Available – 1.5 PDH Credits
The webinar will focus on wind provisions of ASCE 7/ IBC (International Building Code) that are frequently misunderstood or incorrectly applied with a particular emphasis on cold-formed steel structures, including building enclosure classification, torsional wind design, wind load analysis methods, canopies, rooftop screen walls, and effective wind area. It will also focus on ASCE 7-16 changes and explore the future of wind design.
Presenter: Emily Guglielmo, P.E., S.E., F.SEI, Martin/Martin
Emily Guglielmo, P.E., S.E., F.SEI, a Principal with Martin/Martin, will conduct the webinar. With more than 15 years of structural engineering experience, Emily began her career in the Denver, Colorado office of Martin/Martin and now manages the firm’s San Francisco Bay area office. She is President of the National Council of Structural Engineers Associations (NCSEA) and President of the Structural Engineers Association of Northern California (SEAONC). She is also the Chair of the NCSEA Wind Engineering Committee and Vice Chair of the ASCE 7 Seismic Subcommittee. She serves as a voting member on the ASCE 7 Wind, Seismic, and Main Committees. Emily has presented more than 100 lectures on seismic, wind, and building code provisions both nationally and internationally. She has received several awards, including SEI Fellow and the Susan M. Frey NCSEA Educator Award for effective instruction for practicing structural engineers. Emily earned her bachelor’s degree in Civil Engineering from UCLA and her master’s degree in Structural Engineering from UC Berkeley.
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically
Webinar on The New AISI Shear Wall Design Guide – AISI-D113-19
Continuing Education Credits Available – 1.5 PDH Credits
The webinar will provide an overview of shear wall design principles as presented in AISI D113-19 including: Load Path; Wind and Seismic Considerations; Type I and II Shear Wall concepts; Shear Wall Deflection. Design examples will also be presented.
Presenter: Robert L. Madsen, P.E., Devco Engineering, Inc.
Robert Madsen is a Principal with Devco Engineering, Inc. in Enterprise, Oregon where he specializes in the design of cold-formed steel framing. He serves on the American Iron and Steel Institute (AISI) Committee on Specifications (COS) and Committee on Framing Standards (COFS), where he is chairman of the Lateral Subcommittee. He is also chairman of the Technical Review Committee of the Cold-Formed Steel Engineers Institute (CFSEI).
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically
Webinar on Fire and Cold-Formed Steel Design
Continuing Education Credits Available – 1.5 PDH Credits
Fire Resistance of Wall, Floor & Ceiling Systems
The presentation will begin with a review of the standards used to test both wall and floor/ceiling assemblies. Special attention will be given to factors that affect the design of systems with cold-formed steel, and some comparisons will be made to wood-framed systems. Several UL-certified fire designs will be described that showcase how structural factors can affect fire design.
Presenter: Kyle Flondor, United States Gypsum Corporation.
Kyle Flonder is a Senior Researcher, Building Science (Fire) at United States Gypsum Corporation. He received his Bachelor of Science degree in Industrial Engineering from the University of Iowa. From 2006-2017, he was project engineer in UL’s Fire Protection Division, responsible for the evaluation and certification of fire containment and building fenestration products. He moved to USG in 2017 to support the evaluation of USG products and systems through testing and analysis. He is one of the principal USG engineers who work with accredited testing agencies, and he assists most Authorities Having Jurisdiction with large and small projects involving USG products and fire designs.
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically
Webinar on Design Considerations for Cold-Formed Steel Light Frame Diaphragms
Continuing Education Credits Available – 1.5 PDH Credits
This webinar will cover the basic design of cold-formed steel light frame diaphragms as envisioned in the provisions articulated in AISI S100-16, North American Specification for the Design of Cold-Formed Steel Structural Members, 2016 Edition; AISI S230-19, North American Standard for Cold-Formed Steel Framing―Prescriptive Method for One- and Two-Family Dwellings, 2019 Edition; AISI S400-15 w/S1-16, North American Standard for Seismic Design of Cold-Formed Steel Structural Systems, 2015 Edition with Supplement 1; and AISI S240-15, North American Standard for Cold-Formed Steel Structural Framing, 2015 Edition. Design practice documents derived from these AISI Standards will also be addressed. At the conclusion of this webinar, design professionals will have a better understanding of current provisions that support engineered design (strength and deflection) of conventional codebased light frame cold-formed steel diaphragms as well as the limitations of these provisions.
Presenter: Reynald Serrette, Ph.D.,
Santa Clara University
Reynaud Serrette, Ph.D. is a professor in the Department of Civil, Environmental and Sustainable Engineering at Santa Clara University in Santa Clara, California. He has been involved in cold-formed steel research and design since 1987.
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically
Webinar on Cold-Formed Steel Floor System
Continuing Education Credits Available – 1.5 PDH Credits
This webinar will focus on the ideation, development, analysis and experimental evaluation of an innovative lightweight modular floor system utilizing cold-formed steel. As part of a research project funded by the American Institute of Steel Construction (AISC), researchers at the University of Kansas developed a novel floor system composed primarily of cold-formed steel, intended for modular use in steel-framed buildings. The webinar will highlight the background and initial development of the floor system, including design and construction considerations and corresponding analyses. As rapid fabrication, vibration mitigation and diaphragm behavior were emphasized in the development of the floor system, experimental testing of the floor focused on the cyclic behavior of connectors in the cold-formed steel components, vibration serviceability of the floor, and cyclic diaphragm performance within a steel-framed structure. All aspects of system validation will be presented, including physical and analytical evaluations as well as recommendations for future implementation and other project.
Matthew F. Fadden, Ph.D., P.E., Wiss, Janney, Elstner Associates
Dr. Fadden joined WJE with 10 years of experience in structural engineering research and consulting. His primary areas of expertise include the design, analysis and evaluation of steel structures (hot-rolled and cold-formed) and reinforced concrete structures. Additionally, Dr. Fadden has expertise in structural evaluation using finite element modeling and structural testing. His experience also includes seismic design, structural vibrations, offshore structures and litigation support.
Prior to joining WJE, Dr. Fadden was a professor in the Department of Civil, Environmental, and Architectural Engineering at the University of Kansas. There, his research areas included modular systems and connections for steel buildings, bolted and welded connections, ancillary sign structures, structural vibrations, and additive manufacturing for civil infrastructure. Dr. Fadden has authored many technical publications in referenced journals and provided numerous conference presentations.
Dr. Fadden is a member of the American Institute of Steel Construction (AISC), the American Society of Civil Engineers (ASCE), and the Cold-Formed Steel Engineers Institute (CFSEI). He is a registered Professional Engineer in Alabama, Florida, Kansas and Louisiana He earned a B.S. degree in Civil Engineering from the University of Illinois at Urbana-Champaign and M.S. and Ph.D. degrees in Civil Engineering from the University of Michigan.
William N. Collins, Ph.D., P.E., University of Kansas
Dr. Collins is the Chair’s Council Associate Professor of Civil, Environmental and Architectural Engineering at the University of Kansas.
Dr. Collins’ expertise is in structural engineering, with a particular focus on fracture and fatigue behavior and metallic infrastructure. He has been associated with numerous projects related to structural behavior, fabrication and inspection. He is active with numerous professional organizations, including TRB, ASTM International and the AASHTO/NSBA Collaboration. Dr. Collins is also engaged in a variety of educational initiatives at the University of Kansas, including the development and implementation of peer mentoring in structural engineering curricula, an effort that has spread to other groups and departments within the university. He was awarded the AISC Milek Fellowship in 2021.
Previously, he was a research engineer at Purdue University and a research/teaching assistant at Virginia Polytechnic Institute and State University (Virginia Tech). He was also a timberwright at Blue Ridge Timberwrights in Christiansburg, Virginia and a construction superintendent at Prospect Homes of Richmond.
Dr. Collins is a registered Professional Engineer in Kansas. He holds B.S., M.S., and Ph.D. degrees in Civil Engineering, Structural Engineering and Materials from Virginia Tech.
In order to receive credit for this course, you must complete the quiz at the end and pass with at least 80% for a certificate to be generated automatically