The NEHRP Seismic Design Technical Brief No. 5: Seismic Design of Composite Steel Deck and Concrete-filled Diaphragms, A Guide for Practicing Engineers, was produced under contract to the National Institute of Standards and Technology (NIST), by the NEHRP Consultants Joint Venture, a joint venture of ATC and the Consortium of Universities for Research in Earthquake Engineering (CUREE). (Published 2011, 34 pages)
ABSTRACT: This Guide addresses the design of diaphragms composed of steel beams and steel deck with concrete fill. In passing, the Guide addresses some issues related to the design of diaphragms with non-composite (bare) steel deck, but a future Technical Brief devoted entirely to bare steel-deck diaphragms is anticipated. This Guide covers seismic design issues pertaining to Seismic Design Category B up through Seismic Design Category F. As Seismic Design Category A is exempt from seismic design, it is not specifically addressed, although many of the diaphragm analysis and design methods described herein are applicable to the design of diaphragms to resist wind forces and provide structural integrity in Seismic Design Category A buildings. This Guide was written for practicing structural engineers and is intended to provide guidance in the application of code requirements for the design of diaphragms in steel systems. This Guide will also be useful to others wishing to apply building code provisions correctly, such as building officials, and to those interested in understanding the basis of such code provisions and of common design methods, such as educators and students.
This technical brief is also available for download in electronic format at the NEHRP web site.
This task has been completed and produced the NIST GCR 11-917-10 report which may be ordered here in hard (printed) copy format.
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