A resource that provides a greater variety of pre-qualified moment connection options for special moment frames (SMF) and intermediate moment frames (IMF) is now available for designers of steel structures in high seismic regions.
AISC’s Supplement No. 1 to Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications (ANSI/AISC 358-05s1) is now available for free download atwww.aisc.org.
.补充修改ting prequalified moment connection and also adds three new prequalified moment connections. When 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. At that time, neither of the prequalified extended end-plate moment connections could be used with composite concrete structural slabs in SMF.
Supplement No. 1 adds 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, ANSI/AISC 358-05, ANSI/AISC341-05, and ANSI/AISC 360-05 can all be downloaded free fromwww.aisc.org.
