The Wood Frame Construction Manual (WFCM) for One- and Two-Family Dwellings was updated and is designated ANSI/AWC WFCM (Figure 1). WFCM. • Wood Frame Construction Manual. • WFCM uses ASCE 7- 10 wind design provisions. • IRC uses ASCE wind design provisions. The Wood Frame Construction Manual (WFCM) for One- and Two-Family Dwellings was developed by the American Wood Council (AWC) Wood Design.
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This article originally appeared in the Winter issue of Wood Design Focus published by the Forest Products Society and is reprinted with permission. Those provisions are relatively unchanged in ASCEresulting in net reductions to snow loads where unbalanced cases govern. The primary 20012 of this method is increased nailing of panels to framing to provide a continuous load path and enable uplift loads to be transferred to existing wall anchorage at the foundation.
Understand the WFCM uses and scope limitations. The limitations of applicability are provided in Chapters 2 and 3. In order to improve in-service performance of the tile or stone covering, details for the installation of span-rated wood-structural underlayment for a two-layer wood substrate system will be presented.
He 2102 be reached at bshowalter awc. The WFCM includes design and construction provisions for high wind, seismic, and snow loads for connections, wall systems, floor systems, and roof systems. Attendees will learn to use checklists and detailing summaries to ensure a complete load path is prescriptively designed for the wall and floor systems.
Add to Cart Add to Wishlist. Attendees will wfm about the engineering basis of prescriptive tables used to size wood members and connections to resist high wind, seismic, and snow loads in the wall and floor systems. Traditional methods of providing for uplift resistance with additional tie-downs at shear walls can be cumbersome and expensive. Therefore, it is perfectly acceptable to use Chapter 3 provisions for parts of a design and Chapter 2 for other parts.
Understand the difference between segmented and perforated shear wall design.
These details have been derived from typical code provisions and are included in Chapter 2 for the convenience of the designer. The WFCM provides engineered and prescriptive design requirements for wood frame construction used in one and two-family dwellings.
Revised map contours will influence Seismic Design Categories of some geographic areas. A range of structural elements are included such as sawn lumber, structural glued laminated timber, wood structural panel sheathing, I-joists, and trusses. Its reference in the IBC 20112 IRC will allow for its use in those jurisdictions adopting the latest building code.
Browse FAQs for this topic. Line, Philip and Wrcm Coulbourne. Eng and Loren Ross, P.
Research: Rating Action: Moody’s Affirms 11 Classes of WFCM LC5 – Moody’s
Design properties for horizontal diaphragms and shear walls were incorporated in the integral Supplement of the WFCM. Shear wall story offset provisions were wffcm in the WFCM. The WFCM represents state of the art design for one and two family dwellings in regions with high winds, high seismic risk or large snow loads.
Part 2 will deal with design of wall and floor systems, including shear wall design and appropriate connections between roof, floor, wall, and foundations to maintain load path. This course will outline several resources available for shear wall design and compare design results. Foundation systems utilizing elevated piles will be emphasized.
Vertical and lateral load paths will be described including the role of shear walls in buildings. The WFCM represents the state-of-the-art for design of one- and two-family dwellings for high wind, high seismic, and high snow loads. This unit will provide an overview of the significant changes to the DCA 6 and include several examples showing application of the guide.
Be familiar with the design approaches and referenced standards in the WFCM. Suppliers of building products used in the residential construction and their sales staff may benefit as well by enhancing their knowledge of a code-conforming whole building design. A desire to investigate the inherent uplift capacity of nailed wood structural panel shear walls was the impetus for development of this design method.
Several resources available for shear wall design will be discussed and design results will be compared using the various resources. Permanent Bracing for Residential Metal-Plate-Connected Wood Trusses In this unit, the basics of permanent bracing design for wood trusses and the importance of a complete bracing system will be presented.
This unit will provide a chapter by chapter overview of the WFCM which includes provisions for designing wood frame structures for wind, snow, and seismic loads. Understand hold down design. Ground snow loads in the WFCM take into account both balanced and unbalanced snow load conditions.
2012 Wood Frame Construction Manual for One- and Two-Family Dwellings & Commentary to the WFCM
Shear Wall Design Examples Several design tools and standards to assist engineers, architects, and building officials with the design of shear walls are available.
WFCM Editions Note that Chapter 2 also contains some necessary construction details. Attendees will learn to use prescriptive tables to size wood members and connections to resist high wind, seismic, and snow loads in the wall and floor systems. Reference to connector products available in the marketplace will be made without identifying particular wvcm.