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Full Session with Abstracts

341103-1 - An overview of the changes to AISC 341 - Seismic Provisions for Structural Steel Buildings

Friday, April 20
1:30 PM - 3:00 PM
Location: Ballroom C

This presentation will discuss the latest revisions to the AISC Seismic Provisions, ANSI/AISC 341-16 Seismic Provisions for Structural Steel Buildings. The revisions are the work of the AISC Committee on Specifications, Task Committee 9 – Seismic Systems and reflect the effort carried out over the last six years to expand and improve upon the practice of structural steel design for seismic loadings. This document is referenced in ASCE/SEI 7-16 and will be adopted in the 2018 IBC.
The presentation will highlight the changes made between the 2010 edition and the 2016 edition of the Seismic Provisions and the overall impact of those changes on the profession. The inclusion of provisions for multi-tiered braced frames addresses a common seismic system for single-story building structures. Allowing the use of partial-joint-penetration (PJP) groove welds in the column splices of Special Moment Frames (SMF) will reduce the efforts of both fabrication and erection during construction of these seismic systems. Further clarifications in the requirements for continuity plates and web doubler plates in SMF panel zones will reduce material congestion and minimize the cost of this reinforcement where it is required. Other topics related to new and expanded seismic systems, new design approaches, and steel material innovations will be covered.
As a result of this presentation, the attendee will be better prepared to incorporate the new and currently available 2016 AISC Seismic Provisions into their seismic structural engineering practice once it has been formally accepted by the applicable building codes.

James O. Malley

Senior Principal
Degenkolb Engineers

James O. Malley, S.E., is a Senior Principal with Degenkolb Engineers and has over 35 years of experience in seismic design, evaluation, and rehabilitation of building structures. He was responsible for the analytical and testing investigations performed as part of the FEMA funded SAC Steel Project in response to the Northridge earthquake damage. In 2000, AISC presented Mr. Malley its Special Achievement Award, and he was named the 2010 T. R. Higgins Lectureship Award winner for his work on the AISC Seismic Provisions, and was presented with a Lifetime Achievement Award in 2013. As chair of the AISC Committee on Specifications, Mr. Malley oversees the planning and development of AISC technical publications including ANSI/AISC 341 Seismic Provisions for Structural Steel Buildings and ANSI/AISC 360 Specification for Structural Steel Buildings. Mr. Malley also served as chair of the AISC Task Committee 9 on Seismic Systems for over 20 years and remains a member of this committee. He has also been a member of the Buildings Seismic Safety Commission (BSSC) Provisions Update Committee since 2000. He is a past President of SEAONC, SEAOC and NCSEA, and has received numerous awards from each organization for his contributions to the profession.

James received both his Bachelors and Masters Degrees from the University of California at Berkeley.

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