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American Wood Council

STD335 – Disaster Resistant Wood Frame Construction - Part 1: Loads and Roof Story Design

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The Wood Frame Construction Manual (WFCM) for One- and Two-Family Dwellings (ANSI/AWC WFCM-2012) is referenced in the 2012 International Building Code and 2012 International Residential Code.  The WFCM contains tabulated prescriptive and engineered design provisions based on ASCE 7-10 Minimum Design Loads for Buildings and Other Structures and covers connections, wall systems, floor systems, and roof systems. A range of structural elements are included such as sawn lumber, structural glued laminated timber, wood structural panel sheathing, I-joists, and trusses.

Using Design of Wood Frame Buildings for High Wind, Snow, and Seismic Loadings (2012 WFCM Workbook) this 2-part hands-on session provides a design example, helpful checklist, and background information for design of a wood-frame structure in accordance with the 2012 WFCM.  Using plans from a 2-story residence, participants prescriptively design the structure to resist high wind, seismic, and typical residential gravity loads. Part 1 will provide an overview of appropriate loads to apply to residential structures and work through the roof story design. Participants are strongly encouraged to view the free recorded webinar on Significant Changes to the 2012 WFCM (STD315) prior to this webinar.

Learning Objectives:

  1. Learn the appropriate high wind, seismic, and snow loads to apply to residential structures based on code-referenced load standards.
  2. Learn about the engineering basis of prescriptive tables used to size wood members and connections to resist high wind, seismic, and snow loads in the roof story system.
  3. Learn to use prescriptive tables to size wood members and connections to resist high wind, seismic, and snow loads in the roof story system.
  4. Learn to use checklists and detailing summaries to ensure a complete load path is prescriptively designed for the roof story.

Equivalencies: 2.0 Hours of Instruction = 0.2 Continuing Education Units (CEU) = 2 Professional Development Hours (PDH) = 2 Learning Units (LU)


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