standards for cold-formed steel framing · framing standards standards for cold-formed steel...
TRANSCRIPT
North American North American Standards for Standards for
ColdCold--Formed Steel Formed Steel FramingFraming
Steven R. Fox, PhD, P.Eng.Steven R. Fox, PhD, P.Eng.General ManagerGeneral Manager
Introduction Introduction to the to the
CSSBICSSBI
Canadian Sheet Steel Building InstituteCanadian Sheet Steel Building Institute
• Founded in 1961
• Canadian fabricators of structural sheet steel building products
• Mission is to promote the greater use of sheet steel in construction
CSSBI MembershipCSSBI MembershipFabricatorsAGWAY METALSBAILEY METAL PRODUCTSBEAUCHESNEBUTLER BUILDINGS (CANADA)CANAM GROUPDIETRICH METAL FRAMING CANADADUCHESNE & FILS LTÉE.IDEAL ROOFING CO. IMPERIAL SHEET METALMANUGYPSEMÉTAL UPROBERTSON BUILDING SYSTEMSROLL FORMED GROUPSTEELFORM BUILDING SYSTEMSSTEEL TILE CO.STEELWAY BUILDING SYSTEMSTARPON ENERGYTREBOR BUILDING PRODUCTS
VICWESTVP BUILDINGSWESTFORM METALSWESTMAN STEEL INDUSTRIES
ProducersDOFASCOSTELCO
AssociatesBAYCOATCOLOR STEELS INC.IDEAL SECURITYITW CONSTRUCTION PRODUCTS LELAND INDUSTRIES INC.SAMCO MACHINERYSFS intecSOREVCOXSTRATE ZINC CANADA
CSSBI ActivitiesCSSBI Activities• Publications
• Promotion
• Building Codes and Standards
• Technical Assistance
• Canadian Cold Formed Steel Research Group
CSSBI Product AreasCSSBI Product Areas• Steel Building Products (cladding, deck)
• Lightweight Steel Cladding
• Residential Steel Roofing
• Steel Building Systems
• Lightweight Steel Framing
Lightweight Steel FramingLightweight Steel FramingLightweight Steel Framing
Standards
S136S1-04Supplement 2004 to the North American Specification for the Design of Cold-Formed Steel Structural Members
S136-07 Pending
AISI COFS StandardsAISI COFS Standards
About AISIAbout AISIServes as the voice of the North American steel
industry in the public policy arena
Advances the case for steel in the marketplace as the preferred material of choice
Plays a lead role in the development and application of new steels and steelmaking technology
AISI Standards DevelopmentAISI Standards Development
AISI SecretariatAISI SecretariatCommittee on
Framing StandardsCommittee on
Framing Standards
Standards for Cold-Formed Steel FramingStandards for Cold-
Formed Steel Framing
General ProvisionsGeneral Provisions
Design MethodsDesign Methods
Prescriptive MethodsPrescriptive Methods
Committee on SpecificationsCommittee on Specifications
Specification for the Design of Cold-Formed
Steel Structural Members
Specification for the Design of Cold-Formed
Steel Structural Members
Design ManualDesign Manual
Test ProceduresTest Procedures
Design GuidesDesign Guides
COFS MissionCOFS MissionTo eliminate regulatory barriers and increase the
reliability and cost competitiveness of cold-formed steel framing in residential and light commercial building construction through improved design and installation standards.
Member versus System DesignMember versus System Design
AISI Framing StandardsAISI Framing StandardsGeneral Provisions:
– AISI S200-07: General Provisions– AISI S201-07: Product Standard– Code of Standard Practice, 2006 Edition
Design Standards:– AISI S210-07: Floor and Roof System Design– AISI S211-07: Wall Stud Design– AISI S212-07: Header Design– AISI S213-07: Lateral Design– AISI S214-07: Truss Design
Prescriptive Methods:– AISI S230-07: Prescriptive Method for One and Two Family
Dwellings
NBC/OBCNBC/OBCPart 4Part 4
CSACSA--S136S136--0707North American Specification for the North American Specification for the
Design of ColdDesign of Cold--Formed Steel Formed Steel Structural MembersStructural Members
•• General ProvisionsGeneral Provisions•• Product DataProduct Data
•• Wall Stud DesignWall Stud Design•• Truss DesignTruss Design•• Header DesignHeader Design
•• Lateral DesignLateral Design
NBC/OBCNBC/OBCPart 9Part 9
•• Prescriptive MethodPrescriptive Method
AISI S200: General ProvisionsAISI S200: General Provisions
General
Member Design
Installation
Connections
Miscellaneous
AISI S200: General ProvisionsAISI S200: General ProvisionsA. GENERAL
– A1 Scope– A2 Definitions– A3 Material– A4 Corrosion
Protection– A5 Products – A6 Referenced
Documents
B. MEMBER DESIGN– B1 Members– B2 Member Condition
C. INSTALLATION– C1 In-Line Framing– C2 Non-Structural Wall
Framing– C3 Installation
Tolerances
D. CONNECTIONS– D1 Screw Connections– D2 Welded
Connections– D3 Other Connections
E. MISCELLANEOUS– E1 Utilities– E2 Insulation
AISI S201: Product DataAISI S201: Product Data
General
Materials
Products
Quality Assurance
AISI S201: Product DataAISI S201: Product Data• A joint program between the CSSBI and the US
manufacturers to develop a common standard for steel framing products that will replace the current ASTM and CGSB specifications.
• Will benefit the construction industry through standardizing of products among manufacturers.
• Defines the standard steel framing sections: • Materials & Coatings• Shapes • Identification• Section Properties
ProductsProducts
Standard ThicknessesStandard ThicknessesMinimum Base Steel Thickness Design Thickness
(mils) (mm) (in) (mm)
18 0.455 0.0188 0.478 25
30 0.752 0.0312 0.792 20 Drywall
33 0.836 0.0346 0.879 White 20 Structural
43 1.087 0.0451 1.146 Yellow 18
54 1.367 0.0566 1.438 Green 16
68 1.720 0.0713 1.811 Orange 14
97 2.454 0.1017 2.583 Red 12
Colour
Steel FramingGauge No.
(for reference only)
Minimum thickness is 95% of the design thicknessMinimum thickness is 95% of the design thickness
Section DesignatorsSection DesignatorsAll products have a four-part designator that identifies the size (both depth and flange width), style, and minimum thickness. The product designators use the format illustrated by the following example:
400S162-54
where,400 = section depth, (in/100)S = designation for a stud or joist section, T = track,
U = bridging channel, F = furring channel, L = angle162 = flange width (in/100)54 = minimum base steel thickness (mm/1000)
AISI S211: Wall Stud DesignAISI S211: Wall Stud Design
Load Combinations
Sheathing Braced Design(US only)
Stud-to-Track Connection
Deflection Track Connection
AISI S212: Header DesignAISI S212: Header Design
General
Design
Installation
AISI S213: Lateral DesignAISI S213: Lateral Design
Type 1 Shear Walls
Type 2 Shear Walls
Diagonal Strap Bracing
Wall Anchorage
Diaphragms
AISI S214: Truss DesignAISI S214: Truss DesignGeneral
Design Responsibilities
Loading
Truss Design
Quality Criteria
Truss Installation And Bracing
Test Methods
AISI S230: Prescriptive MethodAISI S230: Prescriptive Method
General
Connections
Foundation
Floor Framing
Wall Framing
Roof Framing
Lightweight Steel FramingLightweight Steel FramingLightweight Steel Framing
DesignAidsand
Documents
Contact the CSSBIContact the CSSBICSSBI web site www.cssbi.ca
Phone (519) 650-1285
Fax (519) 650-8081