Business and Professional Practice

Full Session without Abstracts

340376 - The Structural Stability Game Show

Saturday, April 21
10:00 AM - 11:30 AM
Location: Ballroom A

The Direct Analysis Method was introduced as the primary means of stability design in Chapter C of the AISC Specifications for the first time in 2010, replacing the effective length method that many practicing engineers are most familiar with from their education and years of practice. The objective of this session is to introduce the audience to a variety of scenarios where the Direct Analysis Method or other advanced stability design concepts have been applied to real-world structural design problems. This session will be an interactive game show-style session that will cover interesting design problems related to structural stability. The “game show contestants” will consist of 4-5 experienced practicing engineers. Panelists will be selected from structural engineering firms that are well-versed in practical use of advanced stability-related analysis in design (e.g. the Direct Analysis Method), a topic that may be new to the broad range of practicing structural engineers in attendance at the Congress. Ron Ziemian will act as the game show host. During the session, the game show host will introduce the panelists and audience members to a series of challenging, yet practical, design problems that may pose potential stability problems, and the “contestants” will be asked to discuss how they might approach analysis of and/or potential solutions to the given stability problem. These challenging stability-related example problems will be taken from a wide range of structure types, such as building frames, arches, bridges, erection scenarios, etc. The session moderators will work with local Texas engineers in advance of the Congress to identify examples of challenging stability problems that have been encountered in real world projects, with a particular emphasis on Texas projects to tie the session as much as possible to the Congress locale. After each problem is presented, the panelists will have time to formulate their approach. The panelists will not be shown the examples beforehand, so their responses will reflect their gut reactions and thought process taken when approaching a real-world problem. While the contestants are formulating their answers, the audience will be able to vote on their approach to the problem using a text messaging-based app and a multiple choice list of possible approaches to the problem. After the panelists provide their answers, the results of the audience vote would be revealed to see how their vote aligned with the expert panel’s opinion. It is envisioned that 6-8 examples will be covered during a 60-minute session. The target audience for this session includes structural designers in a variety of specialties that may face stability-related problems (e.g. bridges, buildings, long-span structures, towers, etc.). From this entertaining and interactive session, the audience will learn from experienced practitioners how to:
• Identify a variety of design situations and structures that may pose stability-related concerns.
• Apply the Direct Analysis Method in practical structural engineering design problems.
• Assess when it is and is not advantageous and/or practical to employ more advanced stability analysis or bracing design approaches.

This session is sponsored by the ASCE/SEI Structural Members Committee (Metals TAC).

Ronald D. Ziemian

Associate Dean
Bucknell University

Ron Ziemian is a Professor of Civil and Environmental Engineering and is an Associate Dean in the College of Engineering. Professor Ziemian earned his B.S. and M.Eng degrees in Civil and Environmental Engineering from Cornell University, and gained several years of industrial experience at Stone and Webster Engineering Corporation before returning to Cornell for his Ph.D. degree. He joined the Bucknell faculty in 1991, was awarded tenure in 1997, and achieved the rank of full professor in 2003. Professor Ziemian is a structural engineer who applies advanced methods of computational analysis toward developing a better understanding of the stability behavior of metal structures. His doctoral thesis research is credited as one of the foundational works in the application of modern methods of nonlinear analysis in the design of steel structures, for which he earned the American Society of Civil Engineers’ highest honor awarded for a technical paper; the ASCE Norman Medal (1994). His research has since progressed to include the development of the direct analysis method, and represents a body of work that continues to be of use to practitioners in the field, and has resulted in significant changes to U.S. steel and aluminum structural design specifications. As such, his scholarly work has been supported by the American institute of Steel Construction, the Steel Joist Institute, and the Aluminum Association, and he has been recognized with honors including the ASCE Shortridge Hardesty Award (2013), the AISC Special Achievement Award (2006), and Bucknell University’s Presidential Professorship (2010).

Presentation(s):

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Cliff D. Bishop

Senior Engineer
Exponent, Inc.

As a licensed structural engineer, Dr. Cliff D Bishop specializes in the evaluation of building and bridge structures for stability. While at Exponent he has led investigations of damaged concrete, steel, wood, and masonry structures. These investigations typically include on-site testing and documentation, analysis of structural response, and identification of the most appropriate repair. Dr. Bishop often employs sophisticated engineering analysis and state-of-the-art research in support of these investigations. His sound engineering advice provides the basis necessary for building owners, insurers, and other stakeholders to make informed decisions.

Presentation(s):

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John D. Hooper

Senior Principal / Director of Earthquake Engineering
Magnusson Klemencic Associates

John Hooper is a Senior Principal and the Director of Earthquake Engineering at Magnusson Klemencic Associates, a consulting structural and civil engineering firm in Seattle, Washington. He received his Bachelor of Civil Engineering from Seattle University and a Master of Science from the University of California at Berkeley.

John has over 30 years of engineering experience in the fields of renovation, seismic engineering, earthquake engineering, and structural analysis. He is Chair of the American Society of Civil Engineer (ASCE 7’s) Seismic Subcommittee and is a member of the Main Committee, and a member of the Building Seismic Safety Council (BSSC) NEHRP Provisions Update Committee.

Presentation(s):

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Larry Griffis

Senior Consultant/Structures
Walter P. Moore

Presentation(s):

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