GCA Construction News Bulletin January 2013

Page 8

S.A.M.E.UPDATE

Guam SAME presents:

2012 IBC Fundamental Structural Provisions for Engineers, Architects and Builders February 20, 2013 Featuring Dr. S. K. Ghosh from

The Guam Post of the Society of American Military Engineers is pleased to be the Marquee Sponsor of the 20th February workshop intended to bring our region designers and builders up to date with current code requirements. We are fortunate to have an engineer of the caliber of Dr. Ghosh to conduct this workshop for us.

Why we need to know.... Guam recently moved from the 1994 edition of the Uniform Building Code (UBC) to the 2009 edition of the International Building Code (IBC) in part as the basis of the Building Code for Guam. For the users of the Building Code of Guam, this involves a steep transition, because the following model code editions were skipped: the 1997 UBC, the 2000 IBC, the 2003 IBC, and the 2006 IBC. Since the 2012 IBC will be implemented on Guam within the next 12 months, it will be the focus of this workshop.

This seminar is designed to help Guam engineers with the transition and move toward implementation of the new 2012 IBC. Design parameters for two natural hazards that are important in Guam, wind and earthquakes, have changed beyond recognition and thus, much of the workshop will be devoted to those two topics. Utmost efforts will be made to bring attendees up-to-date with the seismic and wind design requirements of the 2012 IBC and ASCE 7-10. Another area of important change is the relationship between the model code and its referenced standards. The IBC is increasingly reliant on its referenced standards. Starting with the 2006 IBC, structural provisions (with the exception of Chapter 17 Inspection and Testing and Chapter 18 Foundations and Soils) have largely been taken out of the model code. Chapter 16 provisions, which deal with design loads including seismic design provisions, are now largely by reference to ASCE 7-Minimum Deign Loads for Buildings and Other Structures. Code changes from ASCE 7-05 to ASCE 7-10 are substantial and will be discussed. The materials chapters (19 through 23) are largely by reference to the materials standards.Back in the days of the 1994 UBC, things were totally different. Adopted provisions of the referenced standards were reproduced in the UBC with modifications, which were made rather frequently, shown in italics. ASCE 7-88 was the latest available edition of ASCE 7; only Chapter 6 on wind of that document was referenced. Precast concrete construction is popular and important in Guam. There have been important developments in the ACI 318 standard and in our model codes in recent years. A brief overview of these developments will be presented. Precast/Prestressed Concrete Institute (PCI) Manual MNL-140-12, Seismic Design of Precast/Prestressed Concrete Structure, Second Edition, by Ned Cleland and S. K. Ghosh will be introduced, and its contents briefly discussed.

Dr. Satyendra K. Ghosh heads the seismic and building code consulting firm, S.K. Ghosh Associates, Inc., in Palatine, Illinois and Aliso Viejo, California. He was formerly Director of Engineering Services, Codes and Standards for the Portland Cement Association in Skokie, Illinois and is Adjunct Professor of Civil Engineering at the University of Illinois at Chicago. Dr. Ghosh has influenced seismic design provisions in the United States for many years by serving on or chairing several committees and advisory panels. He played a major role in the development of shear wall design provisions of the 1994 UBC and the precast concrete design provisions of the 1997 UBC. Dr. Ghosh has long been a provider of continuing education related to structural provisions of building codes to the structural engineering profession and the code enforcement community. His books and other publications on earthquake-resistant design are widely used by those in design practice. Read more about Dr. Ghosh at http://skghoshassociates.com/people/skghosh.

6 | JANUARY2013

CONSTRUCTION NEWS BULLETIN

www.guamcontractors.org


Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.