Strong Frame™ ordinary moment frames are an alternative to wider braced walls required by the IRC and IBC model building codes. Utilized as an alternate method to meet the intent of the code, they help designers avoid the need for wider site-built walls and/or engineered solutions.

This section of the site will guide you to design information on Strong Frame™ Ordinary Moment Frames to meet most common framing applications (shown below) in five easy steps.

• 
  
  Standard applications
  
  
  
  
• 
  
  Garage-front applications
  for 2 and 3 car garages
  in 1, 2 and 3 story structures
  
  
  
  
• 
  
  Balloon-framing applications
  
  
  

Before you get started, see General Notes – Prescriptive Wall Bracing and Wall Bracing: A Basic Interpretation of the Code.

Step One: Classify your jobsite location.

Determine if the jobsite is in a Wind or Seismic Zone: click here to view the map. (Map is for reference only. Consult your local Building Official for specific wall bracing requirements at your location.)

Example:
Jobsite: Lincoln, Nebraska.
Wind zone per map.

Step Two: Identify your bracing quantity requirements.

Refer to the applicable building code.

Example:
Application is a two-story, three-car garage with 8' plate height.
Bracing requirements = 16% x 35' wide = 5.6' (per IRC table R6.02.10.1) use 8-foot substitution.

Step Three: What type of foundation do you have?

	Curb Foundations; Brick Ledge Foundations; Stemwall: Anchorage into Footing (PDF, pgs 40-43 of C-SF09)			Stemwall: Anchorage into Stemwall (PDF, pgs 52-56 of C-SF09)
	Slab-on-Grade Foundations (PDF, pgs 44-51 of C-SF09)			Concrete Masonry Unit Foundations (PDF, pgs 57-58 of C-SF09)

Also see information about Foundation Design - Solutions for Footing and Grade Beam
(PDF, pgs 59-60 of C-SF09).

Example:
Garage application for masonry foundation 24" tall, grouted, concrete foundation.
See Concrete Masonry Unit Foundations (PDF, pgs 57-58 of C-SF09)

Step Four: Select the Strong Frame™ Ordinary Moment Frame model.

Use the tables in the PDFs in step three to determine Strong Frame ordinary moment frame model based on height and opening width, and required bracing amount.

Example:
16‑foot opening width, 80" opening height, 8' nominal plate height use OMF99‑16x8 minimum footing width 22", footing depth = 14".
8-foot substitution: 2-#4 bottom rebar, 15" x 14" grade beam, 2-#4 rebar top and bottom.
See page 57 - Concrete Masonry Unit Foundations (PDF, pgs 57-58 of C-SF09)

Step Five: Determine your anchorage solution.

The tables in the PDFs in step three show both cast-in-place anchorage solutions and post-installed adhesive solutions.

See more information on cast-in-place anchorage solutions: OMFSL Anchorage Assemblies, OMFAB Anchorage Assemblies, and Anchorage Installation Accessories.

Example:
See page 57 - Concrete Masonry Unit Foundations (PDF, pgs 57-58 of C-SF09)

See more information on post-installed adhesive solutions: SET-XP™ Anchoring Adhesive, SET Anchoring Epoxy, Acrylic-Tie® (AT) Anchoring Adhesive, and the Titen HD® Heavy Duty Screw Anchor.

Example:
4 ‑ 5/8" φ rods with 6" embedment in concrete
Length required = 6" embedment + 24" curb + 4 1/2" extension = 34 1/2"
See page 58 - Concrete Masonry Unit Foundations (PDF, pgs 57-58 of C-SF09)

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