SEAONC Seminar - Structural Steel Buildings from Inception to Completion

Thursdays November 5th & 12th, 2009

PG & E Auditorium, San Francisco - Register at the link below:

Topic: "Structural Steel Buildings from Inception to Completion"

Evening 1

  • – General Overview - Tim Hart, S.E.
  • – Gravity Framing for Structural Steel Buildings - Blake Dilsworth, S.E.
  • – Underlying Concepts in Seismic Steel Design Provisions for Moment Frames - Chia-Ming Uang, Ph.D., P.E.

Evening 2

  • – Steel Braced Frame Systems - Walterio Lopez, S.E.
  • – 2010 Updates to AISC 341 - Seismic Provisions for Structural Steel Buildings - James O'Malley, S.E.
  • – Constructability Issues in Steel Construction - Gary Glenn
  • – Beverages and sandwiches will be available during registration; cookies and coffee will be available at the break


General Overview: The presentation will consist of an overview of the conceptual design of a structural steel building, beginning with the issues that arise in the initial discussions with the building architect and owner about what type of material will be used for the structural system. The presentation will then go into some of the decisions that a structural engineer will need to make when initially developing the structural steel framing scheme, such as layout, member sizes, and design criteria. There will then be an overview of the different codes and specifications for these buildings, followed by an overview of the lateral load support systems that are used in structural steel buildings, including a description of each system and the relative advantages and disadvantages of each. Finally, the presentation will go over some of the non-structural issues that pertain to structural steel buildings, such as sustainability, attachment of non-load bearing elements, and special inspections.

Gravity Framing for Structural Steel Buildings: The intent of this presentation will be to better understand how and when to develop the gravity framing systems required for structural steel building project plans. A real healthcare project will be presented and will include project issues and decisions to be made which influence the final framing plans.

Underlying Concepts in Seismic Steel Design Provisions - Application to Moment Frames: Keeping up with the ever-increasing sophistication of seismic design codes (e.g., IBC and AISC Seismic Provisions) has been a major challenge to designers. While seismic codes get updated frequently, the basic design philosophies remain the same. An understanding of these underlying concepts will help designers to use these codes properly. In this presentation these concepts will be explained, and special moment frame design will be used to demonstrate how these concepts are implemented.

Steel Braced Frame Systems: The presentation will discuss three different steel concentric braced frame (CBF) systems; OCBFs, SCBFs, and BRBFs; used in high-seismic regions. The presentation will touch upon CBFs increased popularity as seismic force resisting systems. The presentation will discuss available seismic behavior information from selected analytical and experimental studies as well as the recommended seismic design philosophy inferred from material reference documents. The presentation will cover current practice in seismic design of CBFs, compare current practice to recommended seismic design philosophy, and introduce selected steps that structural engineers can take to positively impact the seismic behavior of CBFs.

2010 Updates to AISC 341-Seismic Provisions for Structural Steel Buildings: The American Institute of Steel Construction (AISC) document Seismic Provisions for Structural Steel Buildings (AISC 341-05), has become the reference document for seismic design of steel structures throughout the United States. Since its initial publication in 2000, the International Building Code (IBC) has incorporated these provisions by reference. Since their 1997 publication, the AISC Seismic Provisions have been updated on a regular basis in order to incorporate new developments and other work in this area. The latest revision culminated in 2005 with the publication of a completely new set of provisions that is in the same unified format as the main AISC design specification. The 2005 edition was incorporated into the 2006 IBC and was adopted by reference into the California Building Code. Work on the 2010 edition of AISC 341 is well underway and will be completed early in 2010 for incorporation into the 2012 IBC. This presentation will summarize the proposed changes to 2010 AISC Seismic Provisions and will also provide an update to the most recent changes to AISC 358 Prequalified Connections for Special and Intermediate Moment Frames for Seismic Applications.

Constructability Issues in Steel Construction: This presentation will be focused on guidelines for design of structural steel so as to minimize cost, expedite schedule, and to avoid common construction pitfalls. Topics will include breakdown of steel costs (where’s the money?), material availability, standard design details, tolerance and deflection issues, comparison of weld types, warpage and distortion issues, bolted versus welded connections, dimensional concerns, reinforcement of sections versus heavier sections, paint and galvanizing considerations, AESS considerations, BIM, LEED, OSHPD and DSA concerns, and safety considerations.


Tim Hart, S.E., LEED AP, is a Senior Associate with Forell Elsesser Engineers and has 20 years of experience in the structural and seismic design of buildings. In those 20 years his experience in steel design and construction has ranged from computer racks and equipment platforms to fire stations, office buildings, and 450,000 square foot hospital towers. Tim has a bachelor’s degree in architectural engineering from Cal Poly San Luis Obispo. He is the chair of the SEAONC Construction Quality Assurance Committee and was the project manager and co-writer of the new “Structural Construction and Special Inspection Manual” just published by SEAOC and ICC. In 2008 Tim received the Edwin G. Zacher Award from SEAONC for his outstanding service and contribution to the profession of structural engineering.

Blake Dilsworth S.E., is a Principal in the San Francisco office of KPFF Consulting Engineers, an 840 person structural and civil engineering firm with 16 offices located primarily on the West Coast. Mr. Dilsworth received his B.S. degree in Civil Engineering from Michigan State University in 1984 and worked in Detroit, Michigan, before relocating to the San Francisco Bay Area in 1989. He is a registered Civil and Structural Engineer in the State of California as well as a licensed Professional Engineer in the States of Michigan, Maryland, Minnesota, Kansas and Washington D.C. His work experience includes projects ranging from low, mid and high-rise concrete and steel structures as well as low-rise wood and masonry structures. His structural steel project experience includes manufacturing and industrial facilities for the automotive and micro-electronics industries, low and mid rise buildings for institutional owners and private developers and high-rise buildings overseas. Mr. Dilsworth has extensive project experience with Design/Build projects and more recently Integrated Project Delivery (IPD) methods for Sutter Health.

Chia-Ming Uang. Dr. Chia-Ming Uang is a Professor of Structural Engineering at the University of California, San Diego. His research area is in seismic design of steel structures. Dr. Uang was a recipient of two awards from the American Society of Civil Engineers: the Raymond C. Reese Research Prize in 2001 and the Moisseiff Award in 2004. He is a member of the AISC’s Committee of Specifications. He received the Special Achievement Award from AISC in 2007. Dr. Uang was also a recipient of the Distinguished Teaching Award at UCSD in 2004.

Walterio López has a fifteen-year professional career in structural engineering. He has extensive knowledge of the seismic design and detailing of structural steel systems. He has been responsible for the structural design of a wide range of multi-story steel buildings and for clients as diverse as institutions, developers, and design-build ventures. One of his steel braced frame projects was given a SEAOC Excellence in Structural Engineering Award. Walterio has authored or co-authored technical papers on structural steel braced frames. He is highly involved in the codification, building design and testing of buckling-restrained braced frames (BRBFs) in seismic applications. His involvement with BRBFs resulted in his being a co-recipient of the 2008 AISC T. R. Higgins Lectureship Award. Walterio is a past chair of SEAONC's steel seismology subcommittee, serves on two advisory boards for research projects dealing with innovative structural steel systems, and is a corresponding member of the AISC seismic committee, TC-9.

James O. Malley, S.E., is a Senior Principal with Degenkolb Engineers. He received both his Bachelors and Masters Degrees from the University of California at Berkeley. Mr. Malley has over 26 years of experience in the seismic design, evaluation and rehabilitation of building structures. He was responsible for the analytical and testing investigations performed as part of the SAC Steel Project in response to the Northridge earthquake damage. In 2000, AISC presented Mr. Malley its’ Special Achievement Award. Mr. Malley is a member of the AISC Specifications Committee and the Chair of the AISC Seismic Subcommittee. He is also a member of the AWS Subcommittee on Seismic Welding Issues. Jim has served as a member of the SEAONC and SEAOC Board of Directors, and was President of SEAONC in 2000-2001 and SEAOC in 2003-2004. He was named a SEAOC Fellow in 2007. He is presently a member of the Board of Directors of NCSEA, and will become the President in 2010.

Gary Glenn is President of Gayle Manufacturing Company, a major structural steel contractor in California. He has a Civil Engineering Degree from California State University of Sacramento, is an AWS certified inspector, and sits on the AISC Seismic Provisions Connections Prequalification Review Panel. He has been involved in the structural steel industry for 15 years, including positions as Estimator, Project Manager, and General Manager before becoming President. Gayle Manufacturing Company has provided structural and miscellaneous steel on projects for the last 30 years including complex OSHPD hospitals, airports, sport arenas, and high rises in the public and private sectors in the 500 to 9,000 ton range.

Meeting Details

  • – Early Registration rate is available until October 22, 2009
  • – After Friday, Oct. 22 all registrations will need to add an additional $30.
  • – Payment is required by first evening of the seminar.
  • – Registration will be confirmed via e-mail.
  • – *No cancellations after 12:00 noon, October 22
  • – No shows are still responsible for full registration fee.


PG & E Auditorium - 245 Market Street, San Francisco


Registration: 5:15 p.m. - 6:00 p.m.
Seminar: 6:00 p.m. - 9:00 p.m.

Cost: (Early Registration Rate)

SEAOC Member: $180
Non-Member: $300
Student (must be a member of SEAONC): $60


Confirmations will be provided via e-mail when registrations are made electronically.

Registration Options:

For further questions, please visit