Product Technical Guides : CA-EN Direct Fastening - Volume 1 Edition 22 | Page 50

X-PN 37 G2 MX X-PN 37 G3 MX X-PN 37 B4 MX

Carbon Steel 5 μm Zinc 1

Exposure 1 , structural 1 plywood complying with DOC PS-1 or oriented strand board ( OSB ) complying with DOC PS-2 for exposure 1

27-68 mils ( 0.0283-0.0713 inch ) ASTM A1003 or ASTM A653 CFS Member

1 ASTM B633 , SC1 , Type III . Refer to Section 2.3.3.1 for more information .

3.2.8.3 SHEAR WALL DESIGN AND THEORY

3.2.8.3.1 Shear wall terminology and definitions Shear wall terminology AISI - American Iron and Steel Institute

AISI S240 -20 - North American Standard for Cold-Formed Steel Structural Framing

APA - American Plywood Association CFS - Cold-Formed Steel

PN - Hilti fastener type used for attaching wood structural panel sheathing to cold-formed steel framing . The fasteners are installed using Hilti gas- and battery-actuated tools .

BX - Hilti Battery-Actuated Direct Fastening Systems GX - Hilti Gas-Actuated Direct Fastening Systems ICC-ES - International Code Council - Evaluation Service

Shear wall definitions

Cold-formed steel ( cfs ) structural member - Steel shape manufactured by press-braking blanks sheared from sheets , cut lengths of coils or plates , or by roll forming cold- or hotrolled coils or sheets ; both forming operations being performed at ambient room temperature , that is , without addition of heat , such as would be required for hot rolling .

Cold-formed steel ( CFS ) studs - Interior framing members . CFS framing studs are C-shaped steel members with a minimum thickness of 33 mils , minimum flange width of 1-5 / 8 " ( 41.3 mm ), a minimum web depth of 3-1 / 2 " ( 89 mm ) and a minimum edge stiffener length of 3 / 8 " ( 9.5 mm ).

Cold-formed steel ( CFS ) tracks - A U-shaped CFS track designed to accept a CFS stud member with a minimum thickness of 33-mils and a minimum flange width of 1-1 / 4 " ( 31.8 mm ) and a minimum web depth the same as the CFS stud members .

Exposure 1 - Panels that have full water-proof bond that will allow the panels to resist some corrosion effects on the jobsite until fully protected .

Fastener pattern - The spacing of fasteners along the perimeter and interior segments of the shear wall .

Hold-down connector - A device used to resist overturning of shear wall assemblies .

Lateral load - Fastener performance in shear .

Mils - A measure of thickness for CFS members . Reference Table 1 on page 54 for common CFS thickness designations .

OSB ( Oriented Strand Board ) - A mat-formed wood structural panel comprised of thin rectangular wood strands arranged in cross-aligned layers with surface layers normally arranged in the long panel direction and bonded with water proof adhesive .

Plywood - A wood structural panel comprised of plies of wood veneer arranged in cross-aligned layers . The plies are bonded with waterproof adhesive that cures on application of heat and pressure .

Self-drilling screws - Screws that are used to connect CFS members together and to attach hold-downs to CFS framing . Screws must be a minimum # 8 Hilti self-drilling tapping screw recognized in ICC-ES ESR-2196 .

Shear wall - Wall that provides resistance to lateral loads in the plane of the wall and provides stability for the structure .

Sill fasteners - Attachments to connect steel stud track members to concrete base material .

Structural 1 rated sheathing - An APA Rated Sheathing where the racking and cross sectional properties are higher for improved performance in demanding applications such as shear walls and diaphragms .

Transverse load - Fastener performance in direct tension ( fastener pullout or pull-through ).

Type I shear wall - A fully sheathed shear wall with hold-down anchors at each end of the wall segment . Type I shear walls are permitted to have openings , between hold-down anchors at each end of a wall segment , where details are provided to account for force transfer around openings .

Wood structural panels - A panel manufactured from veneers , wood strands or wafers or a combination of veneer and wood strands or wafers bonded together with waterproof synthetic resins or other suitable bonding systems .

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