1.4
LOAD-BEARING COLD-FORMED METAL FRAMING
Include [top and bottom tracks,] bracing, fastenings, and other accessories
necessary for complete installation. Framing members shall have the
structural properties indicated. Where physical structural properties are
not indicated, they shall be as necessary to withstand all imposed loads.
Design framing in accordance with AISI SG-973. [Non-load-bearing metal
framing, furring, and ceiling suspension systems are specified in Section
09100 METAL SUPPORT ASSEMBLIES.] [Metal suspension systems for acoustical
ceilings are specified in Section 09510 ACOUSTICAL CEILINGS.]
1.5
MAXIMUM DEFLECTION
**************************************************************************
NOTE: Modify to suit project requirements. Use
maximum deflection of L/360 unless special
considerations require modification.
**************************************************************************
a.
Exterior Studs:
Deflection Criteria
Exterior Finish
L/240 or L/360
Synthetic Plaster, Metal Panels
L/360
Cement Plaster, Wood Veneer
L/600
Brick Veneer, Stone Panels
Wall deflections shall be computed on the basis that studs withstand all
lateral forces independent of any composite action from sheathing materials.
Studs abutting windows or louvers shall also be designed not to exceed 6 mm
1/4 inch maximum deflection.
b.
Floor Joists:
L/360 - Live load only
L/240 - Total load
c.
Roof Rafters:
L/240 - Live load only
1.6
QUALITY ASSURANCE
1.6.1
Drawing Requirements
Submit framing components to show sizes, thicknesses, layout, material
designations, methods of installation, and accessories.
[1.6.2
Design Data Required
Submit metal framing calculations to verify sizes, gages, and spacing of
members and connections. Show methods and practices used in installation.
]PART 2
PRODUCTS
2.1
STEEL STUDS, JOISTS, TRACKS, BRACING, BRIDGING AND ACCESSORIES
Framing components shall comply with ASTM C 955 and the following.
SECTION 05400
Page 7
Previous Page
