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Site-Built Shearwall Designer

Wood shearwalls are typically used in locations where increased lateral resistance is required, such as around window and door openings, on garage wing walls and interior walls. When designing a wood shearwall, Designers need to consider the shear (sheathing and nailing), overturning (holdowns), concrete anchorage and drift. Simpson Strong-Tie has developed a web application that can quickly design shearwalls based on demand load, wall geometry and shearwall design parameters.

Select Wood Shearwall Type
Solid Walls

Solid Walls

Design of 1-story solid wood shearwalls.

OR
Open Walls (FTM)

Walls with
Opening (FTAO)

Design of 1-story wood shearwalls with one opening using the force transfer method. Strap force calculation is based on the Diekmann method.

Design Criteria

 
Wall ID
Design Code
Select the edition of the International Building Code that the shearwall is to be designed to.

Seismic Lateral Demands

ASD Seismic Load, 0.7*E
Enter the allowable stress design (ASD) seismic demand load on the shearwall. Multiply Nominal design load (LRFD) by a factor of 0.7 to convert to ASD design Load. Enter zero to not consider seismic design loads in the design of the shearwall.
lb
Seismic Design Category
Select the Seismic Design Category for the site and structure. See ASCE 7, Section 11.4. The USGS Seismic Design Maps tool can help with this. Visit http://earthquake.usgs.gov/designmaps.
Seismic Drift Limit
Select the allowable story drift for the shearwall based on the type of structure and the Occupancy Category per 2009 IBC reference ASCE 7-05 Table 1.1 and Table 12.12-1 or Risk Category per 2012 IBC reference ASCE 7-10 Table 1.5-1 and Table 12.12-1. Only shearwall and holdown options meeting this limitation will be output.
Seismic Value, SDS
Enter the design spectral response acceleration parameter for short periods. See ASCE 7, Section 11.4. The USGS Seismic Design Maps tool can help with this. Visit http://earthquake.usgs.gov/designmaps.
Importance Factor, I
Select the Importance Factor for the structure based on the Occupancy Category. For the 2009 IBC reference ASCE 7-05 Table 1.1 and Table 11.5-1. For the 2012 IBC reference ASCE 7-10 Table 1.5-1 and Table 1.5-2."
Omega Factor
Select the System Overstrength Factor for the shearwall.
Redundancy Factor
Select the Redundancy Factor, ρ, for the system and load direction under consideration. See ASCE 7-05 or -10 Section 12.3.4.

Wind Lateral Demands

ASD Wind Load, W
Enter the allowable stress design (ASD) wind demand load on the shearwall. For IBC 2012, multiply Nominal design load (LRFD) by a factor of 0.6 to convert to ASD design Load. Enter zero to not consider wind design loads in the design of the shearwall.
lb
Wind Drift Limit
Select the allowable story drift for the shearwall for wind if desired. Only shearwall and holdown options meetings this limitation will be output.
Edit Shearwall Parameters
Solid Walls
H
Enter the height of the shearwall.
ft
L
Enter the length of the shearwall.
ft
Walls With Opening (FTM)
Hu
Enter the wall height or pier height above the opening in the shearwall. The minimum value is 1 foot.
ft
Ho
Enter the height of the opening in the shearwall.
ft
Hl
Enter the wall height or pier height below the opening in the shearwall. The minimum value is 1 foot.
ft
L1
Enter the wall width or pier width beside the opening in the shearwall. The minimum value is 2 feet.
ft
L2
Enter the width of the opening in the shearwall.
ft
L3
Enter the wall width or pier width beside the opening in the shearwall. The minimum value is 2 feet.
ft

Shearwall Parameters

Wall Thickness (Nominal)
Stud Spacing
Lumber Species
Wood Structural Panel
Sheathing Type
Minimum Sheathing Thickness
Wall Dead Load
psf
Double-Sided Shearwall

Holdown Information

Holdown Installation Method
Embedded Anchor
Embedded Anchor
OR
Embedded Strap
Embedded Strap
Holdown Type
Please select holdown installation method.
Location
Select the location of the holdown connector with respect to the edges of the foundation.
Stemwall Thickness
Select the applicable width of the foundation beam or footing into which the connector will be embedded. Use 8" for widths 8" or larger.
Rim Joist
Select "Yes" if the shearwall is located on a wood floor system.
Over Sheathing
Select "Yes" if the Shearwall is located on a wood floor system.
Restart
Calculate
Calculation Results
Wood Shearwall Selector
Output Summary
PDF
Summary
Sheathing Sheathing
Capacity
Drift (in) Nailing Holdown
Model
End Studs Number Of
Shear Anchors
Number of Sides Thickness (in) vs (plf) vw (plf) Seismic  Wind  Type & Size Edge Spacing (in) MASA Titen HD
Restart
Save File

Open Wall Input Information

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