Supplement to ANSI/AISC 358-05 Prequalified Moment Connection Standard Available for Public Review
September 6, 2008 // Published as a news service by IHS
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Supplement No. 1 to the 2005 American Institute of Steel Construction Inc. (AISC) Standard Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications - American National Standards Institute (ANSI)/AISC 358-05 - is now available for a second public review.
This supplement includes limited revisions to existing provisions for end-plate and reduced beam section (RBS) connections and provides design provisions for additional moment connection technologies, including the bolted flange plate (BFP) moment connection, the welded unreinforced flange - welded web (WUF-W) moment connection, and the Kaiser bolted bracket (KBB) proprietary cast moment connection.
The supplement also includes an appendix for cast steel material and quality.
The only item to be reviewed in this ballot is Section A.2.4(2)b. The proposed revision increases the sampling to 50% of the production castings from 25% in the previous ballot.
This change was made as a result of negative comments received on the first ballot and the committee's determination that this rate would be more consistent with that necessary to ensure a quality product, AISC said.
To download the public review document, visit http://www.aisc.org/358s2.
To download the comment form, visit http://www.aisc.org/358s2PRcomments.
To download the existing 2005 ANSI/AISC 358 standard, go to http://www.aisc.org/AISC358.
Visit http://www.aisc.org for information about requesting a hard copy of the supplement.
All comments are due by Oct. 20, 2008.
Source: American Institute of Steel Construction Inc. (AISC).