2016 AISC Prequalified Seismic Moment Connection Standard Available for Free Download

November 1, 2016

(Chicago, IL) - The 2016 version of the AISC standard, Prequalified Connections for Special and Intermediate Steel Moment Frames for Seismic Applications (ANSI/AISC 358-16), is now available for free downloading here. This updated version of the standard has been expanded to cover nine connections: reduced beam section moment connections; bolted stiffened and unstiffened extended end-plate moment connections; bolted flange plate moment connections; welded unreinforced flange-welded web moment connections; Kaiser bolted bracket moment connections; ConXtech ConXL moment connections; SidePlate moment connections; Simpson Strong-Tie Strong Frame moment connections and double-tee moment connections. In addition to general requirements and limitations, each prequalified connection chapter includes a step-by-step design procedure.

The new standard has been approved by the AISC Connection Prequalification Review Panel (CPRP) and is ANSI-accredited. “With the release of AISC 358-16, there are now nine prequalified beam-to-column moment connections for Special and Intermediate Moment Frames,” said Michael D. Engelhardt, chairman of the committee. “Work is already underway to prequalify additional connections and to extend the range of use for some of the existing prequalified connections, with the goal of providing designers with an ever growing range of options.” ANSI/AISC 358 is an essential companion to the upcoming AISC Seismic Provisions (ANSI/AISC 341-16), which outlines the requirements for the prequalification of seismic moment connections in Chapter K.

ANSI/AISC 358-16 is available as a free download here. All current AISC specifications and codes are available as free downloads at


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The American Institute of Steel Construction, headquartered in Chicago, is a non-partisan, not-for-profit technical institute and trade association established in 1921 to serve the structural steel design community and construction industry. AISC's mission is to make structural steel the material of choice by being the leader in structural steel-related technical and market-building activities, including: specification and code development, research, education, technical assistance, quality certification, standardization, market development, and advocacy. AISC has a long tradition of service to the steel construction industry of providing timely and reliable information. 

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