Glenshaw, Pa. — The Steel Deck Institute (SDI) has published a new edition of the Diaphragm Design Manual (DDM04), which complies with the requirements of the new AISI S310-13, North American Standard for the Design of Profiled Steel Diaphragm Panels. This 408-page fourth edition is larger than its predecessor and is available for purchase at SDI’s website. It replaces the Third Edition of the Diaphragm Design Manual, DDM03.

The just-published edition focuses on the design of steel deck diaphragms for roof and floor decks and is a valuable resource for structural designers. It includes information on diaphragm strength and stiffness, fasteners and connections, and warping and stiffness properties. The new edition also includes:

  • 25 new and expanded design examples
  • Load tables for proprietary fasteners
  • Load tables for generic fasteners (a new feature)
  • An expanded discussion of the interaction of wind uplift with diaphragm strength
  • New diaphragm strength tables
  • Updated fastener tables that include generic welds, mechanical fasteners, proprietary screws and power-actuated fasteners.

The companion publications Roof Deck Design Manual and Floor Deck Design Manual are also available for purchase at the SDI website, www.sdi.org. AISI S310-13, North American Standard for the Design of Profiled Steel Diaphragm Panels, is available to download at www.aisistandards.org.

SDI and Simpson Strong-Tie are presenting a webinar, “Diaphragm Design with Steel Deck,” on November 17, 2015 at 11:00 am Eastern Time to enable participants to design steel deck diaphragms with greater efficiency, resulting in lower construction costs. A copy of the new Diaphragm Design Manual is included with each site registration. Participants are eligible for 2 PDHs. More information and registration details are available at www.sdi.org.

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