COLDCOLD--FORMED STEEL FORMED STEEL DESIGN DOCUMENTS DESIGN DOCUMENTS

Dr. Roger LaBoubeCurator’s Distinguished Teaching Professor

andDirector

Wei-Wen Yu CenterWei Wen Yu Center for

Cold-Formed Steel Structures

Goal of This PresentationGoal of This PresentationGoal of This PresentationGoal of This Presentation

Provide overview of coldProvide overview of cold--formed steelformed steelProvide overview of coldProvide overview of cold formed steel formed steel design specification and design standards design specification and design standards used in the construction industryused in the construction industryused in the construction industry.used in the construction industry.

Standards HierarchyStandards HierarchyStandards HierarchyStandards Hierarchy

General Provisions

Requirements for engineered or

prescriptive designSpecification

Design Standards

prescriptive design

Prescriptive Method for One and Two Family Dwellings

AISIAISI North American SpecificationNorth American SpecificationAISI AISI North American SpecificationNorth American Specification

D i S ifi ti f C ldD i S ifi ti f C ld F d St lF d St lDesign Specification for ColdDesign Specification for Cold--Formed Steel Formed Steel in Constructionin Construction

AISI Framing StandardsAISI Framing Standards

General Purpose:General Purpose:pp AISI S200AISI S200--07: General Provisions07: General Provisions AISI S201AISI S201--07: Product Standard07: Product Standard Code of Standard Practice, 2006 EditionCode of Standard Practice, 2006 Edition,,

Engineering Design Standards:Engineering Design Standards: AISI S210AISI S210--07: Floor and Roof System Design07: Floor and Roof System Design AISI S211AISI S211 07: Wall Stud Design07: Wall Stud Design AISI S211AISI S211--07: Wall Stud Design07: Wall Stud Design AISI S212AISI S212--07: Header Design07: Header Design AISI S213AISI S213--07: Lateral Design07: Lateral Design

AISI S214AISI S214 07: Truss Design07: Truss Design AISI S214AISI S214--07: Truss Design07: Truss Design Prescriptive Methods:Prescriptive Methods:

AISI S230AISI S230--07: Prescriptive Method for One and Two Family 07: Prescriptive Method for One and Two Family D lliD lliDwellingsDwellings

Code of Standard PracticeCode of Standard PracticeCode of Standard PracticeCode of Standard PracticeA.A. GENERALGENERALB.B. CLASSIFICATION OF CLASSIFICATION OF

MATERIALSMATERIALSC.C. CONTRACT DOCUMENTSCONTRACT DOCUMENTSD.D. INSTALLATION DRAWINGSINSTALLATION DRAWINGSE.E. MATERIALSMATERIALSF.F. INSTALLATIONINSTALLATIONG.G. QUALITY CONTROLQUALITY CONTROLH.H. CONTRACTUAL CONTRACTUAL

RELATIONSRELATIONS

ScopeScopeScopeScope

Defines and sets forth accepted norms ofDefines and sets forth accepted norms ofDefines and sets forth accepted norms of Defines and sets forth accepted norms of good practice for fabrication and good practice for fabrication and installation of coldinstallation of cold--formed steel structuralformed steel structuralinstallation of coldinstallation of cold formed steel structural formed steel structural framingframing

Supplement to legal building regulationSupplement to legal building regulation Supplement to legal building regulationSupplement to legal building regulationWould be used unless there are differing Would be used unless there are differing

i t ti i th t t d ti t ti i th t t d tinstructions in the contract documentsinstructions in the contract documents Voluntary documentVoluntary document

Model DocumentsModel DocumentsModel DocumentsModel Documents

AISCAISC -- Code of Standard Practice for SteelCode of Standard Practice for Steel AISC AISC Code of Standard Practice for Steel Code of Standard Practice for Steel Buildings and BridgesBuildings and Bridges

SJISJI Recommended Code of StandardRecommended Code of Standard SJI SJI –– Recommended Code of Standard Recommended Code of Standard Practice for Steel Joists and Joist GirdersPractice for Steel Joists and Joist Girders

SummarySummaryyy The AgeThe Age--Old Question: “Who is Old Question: “Who is

ibl f h t?”ibl f h t?”responsible for what?”responsible for what?” The AgeThe Age--Old Answer: “Good Old Answer: “Good

Communication”Communication”CommunicationCommunication Code of Standard PracticeCode of Standard Practice Contract Documents Contract Documents –– nothing nothing

replaces the need for a set of well replaces the need for a set of well thoughtthought--out and executed contract out and executed contract documentsdocumentsdocuments.documents.

These documents compliment each other

ExampleExampleExampleExample

• Responsibilities for field modifications and repairs must be clearly defined and comm nicatedcommunicated

PrescriptivePrescriptive MethodMethodpp

Consists of design tables and construction details

Prescriptive MethodPrescriptive MethodTables and DetailsTables and DetailsTables and DetailsTables and Details

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