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2002 AISC Seismic Provisions for Structural Steel Buildings Now Available

March 27, 2003 From American Institute of Steel Construction, Inc.

The AISC Seismic Provisions for Structural Steel Buildings, dated 2002, is now available from AISC. This is a full revision of the 1997 version of this document, including Supplements Number 1 (dated February 15, 1999) and 2 (dated November 10, 2000). The document can be purchased in printed form for $30 ($20 for AISC members) and is also available as a free download by clicking HERE.

This American National Standard, developed by the AISC Task Committee 9 on Seismic Design and approved by the AISC Committee on Specifications, is the most current specification in the United States addressing the design and construction of structural steel and composite structural steel/reinforced concrete building systems for seismic demands. In addition to the inclusion of the recent Supplements No. 1 and 2, revisions resulting from new information generated by the FEMA/SAC project and other sources are incorporated. One major change is related to the referencing of ASCE 7-02, Minimum Design Loads for Buildings and Other Structures, which allows the 2002 Seismic Provisions to be incorporated by reference into both the 2002 NFPA 5000 and the 2003 International Building Code. Both codes use ASCE 7-02 as their basis for design loading. Additional specific changes included in the 2002 Seismic Provisions include the following:

• A clarification to the glossary to verify that chord and collector/drag elements in floor diaphragms are considered to be part of the Seismic Load Resisting System.
• Additional requirements for the toughness of filler metals to be used in complete-joint-penetration groove welds in Intermediate and Special Moment Frame systems.
• A revision to clarify member slenderness ratio requirements and better coordinate with the LRFD provisions.
• Increasing the Moment Frame column splice requirements to reflect the FEMA/SAC recommendations.
• Requiring that splices of columns that are not part of the Moment Frames develop a minimum shear force.
• Clarifying Column Base design demands for various systems.
• Adding a section on the use of H-pile members.
• Clarifying lateral bracing requirements of Moment Frame beams, including the provision of a required stiffness to be consistent with Section 3 of LRFD.
• Increasing SMF web Connection design requirements to be consistent with the FEMA/SAC recommendations.
• Adding a new appendix (Appendix P) that defines procedures to be used in the pre-qualification of moment Connections.
• Incorporating FEMA/SAC recommendations for weld access holes in OMF systems.
• Incorporating FEMA/SAC recommendations for the removal of weld backing and run-off tabs in OMF systems, including grinding surfaces to adequate smoothness.

Dual units format. Values and equations are given in both U.S. customary and metric units. The metric conversions (given in parentheses following the U.S. units) are based on IEEE/ASTM SI 10, Standard for Use of the International System of Units (SI): The Modern Metric System. The equations are non-dimensionalized where possible by factoring out material constants, such as E.

These new provisions are accompanied by a major update to the commentary.

To order this publication, call 800.644.2400 and refer to Publication ANSI/AISC 341-02 or click HERE.

For more information contact:

Scott Melnick
VP of Communications
(312) 670-8314
melnick@aisc.org