08-14-2009, 03:42 PM
(This post was last modified: 01-12-2022, 11:22 AM by Administrator.)
Supplement No. 1 to ANSI/AISC 358-05
August 4, 2009 from American Institute of Steel Construction
(Chicago, IL) – A valuable resource that provides a greater variety of prequalified moment connections options for special moment frames (SMF) and intermediate moment frames (IMF) is now available for designers of steel structures in high seismic regions.
ANSI/AISC 358-05s1 is a supplement to the 2005 AISC standard, Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications. The document modifies an existing prequalified moment connection and adds three new prequalified moment connections.
When it was first introduced in 2005, AISC Prequalified Connections covered three connection types: reduced beam section (RBS) moment connections, bolted unstiffened extended end-plate (BUEEP) moment connections, and bolted stiffened extended end-plate (BSEEP) moment connections. A limitation was necessary at that time on both of the prequalified extended end-plate moment connections: they could not be used with composite concrete structural slabs in SMF.
Supplement No. 1 to ANSI/AISC 358-05 provides three more prequalified connection types and eliminates the prohibition of composite slabs for extended end-plate moment connections in SMF. Supplement No. 1 also adds prequalified details for bolted flange plate (BFP) moment connections, welded unreinforced flange - welded web (WUF-W) moment connections, and Kaiser bolted bracket (KBB) moment connections.
ANSI/AISC 358-05s1 is available for free download along with ANSI/AISC 358-05, ANSI/AISC341-05, and ANSI/AISC 360-05 at:
August 4, 2009 from American Institute of Steel Construction
(Chicago, IL) – A valuable resource that provides a greater variety of prequalified moment connections options for special moment frames (SMF) and intermediate moment frames (IMF) is now available for designers of steel structures in high seismic regions.
ANSI/AISC 358-05s1 is a supplement to the 2005 AISC standard, Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications. The document modifies an existing prequalified moment connection and adds three new prequalified moment connections.
When it was first introduced in 2005, AISC Prequalified Connections covered three connection types: reduced beam section (RBS) moment connections, bolted unstiffened extended end-plate (BUEEP) moment connections, and bolted stiffened extended end-plate (BSEEP) moment connections. A limitation was necessary at that time on both of the prequalified extended end-plate moment connections: they could not be used with composite concrete structural slabs in SMF.
Supplement No. 1 to ANSI/AISC 358-05 provides three more prequalified connection types and eliminates the prohibition of composite slabs for extended end-plate moment connections in SMF. Supplement No. 1 also adds prequalified details for bolted flange plate (BFP) moment connections, welded unreinforced flange - welded web (WUF-W) moment connections, and Kaiser bolted bracket (KBB) moment connections.
ANSI/AISC 358-05s1 is available for free download along with ANSI/AISC 358-05, ANSI/AISC341-05, and ANSI/AISC 360-05 at:
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