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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Identify and wfcn the basic shear wall system to resist wind and seismic loads. The limitations of applicability are provided in Chapters 2 and 3.
Wffcm seems to be disabled in your browser. WFCM Editions A range of structural elements are covered, including sawn lumber, structural glued laminated timber, wood structural sheathing, I-joists, and trusses.
This course will outline several resources available for shear wall design and compare design results. Specifying and Constructing Floors to Accommodate Ceramic Tile and Stone The use of brittle floor covering materials requires carefully planning and coordination at the rough-framing design phase.
In ArticlesCode Updates Comments 0. This article originally appeared in the Winter issue of Wood Design Focus published by the Forest Products Society and is reprinted with permission.
The WFCM prescriptive method will is used to illustrate the magnitude and applied location for loads applicable to low-rise wood frame construction.
Design values for structural lumber, structural glued laminated glulam timber, and fasteners were incorporated in the integral Supplement of the WFCM.
Prescriptive details for commonly required lateral and diagonal bracing needed to meet the assumptions of the truss design drawings for residential applications will be reviewed. Eng and Loren Ross, P. This unit will provide an overview of the significant changes to the DCA 6 and include several examples showing application of the guide. Attendees will 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 wall and floor systems.
Limits to the WFCM are based on the following: A comprehensive table listing section by section changes to the WFCM, including modifications to Supplement and Appendix material, is available at www.
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The WFCM includes design and construction provisions for high wind, seismic, and snow loads for 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. A desire to investigate the inherent uplift capacity of nailed wood structural panel shear walls was the impetus for development of this design method. Understand hold down design. Chapter 3 provides several prescriptive solutions derived from Chapter 2 load requirements.
Be familiar with the significant changes between the and WFCM. The design example uses plans from a 2-story residence as the basis for a structural design to resist wind, seismic and snow loads.
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. Traditional methods of providing for uplift resistance with additional wfck at shear walls can be cumbersome and expensive.
2012 Wood Frame Construction Manual for One- and Two-Family Dwellings & Commentary to the WFCM
Walls sheathed with wood structural panels can be used to resist uplift alone, or simultaneously resist uplift and shear from wind forces. Use on a local area wcm or other network is not permitted. Be familiar with additional resources that are available.
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. Be familiar with specific provisions of the building codes referencing the WFCM.
Shear wall segments are permitted to be offset out-of-plane from the story below by a maximum distance equal to the depth, d, of the floor joists Figure 2where all of the following conditions are met:.
This option is mobile friendly and compatible with all devices, including mobile tablets and smart phones. Expand all Collapse all. The WFCM provides engineered and prescriptive design requirements for wood frame construction used in one and two-family dwellings.
This webinar builds on the three previous Load, Load Path, and Connections webinars to describe how loads must be transferred through the building to reach the foundation system. Be able to describe how loads are distributed to buildings both vertically and horizontally Be able to describe several different load paths that are critical to improved building performance during high winds Be able to recognize structural configurations or significant loading in building framing that might present construction challenges to framing continuous load paths Be able to recognize construction defects that could potentially fail under high wind loads Equivalencies: Learn to use checklists and detailing summaries to ensure a complete load path is prescriptively designed for the roof story.
Shear wall story offset provisions were clarified 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. Several resources available for shear wall design will be discussed and design results will be compared using the various resources.
This webinar will be a continuation of the Loads webinar and use the loads developed previously to illustrate the importance of load path continuity in buildings. Among the concerns is the number of tie-downs required for shear walls, which can present both cost increases and practical construction challenges.
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.