Table of Contents
1Introduction
2TorsionFundamentals
2.1ShearCenter
2.2ResistanceofaCross-SectiontoATorsional
Moment
2.3AvoidingandMinimizingTorsion
2.4SelectionofShapesforTorsionalLoading
3GeneralTorsionalTheory
3.1TorsionalResponse
3.2TorsionalProperties
3.2.1TorsionalConstantJ
3.2.2OtherTorsionalPropertiesforOpen
Cross-Sections
3.3TorsionalFunctions
4AnalysisforTorsion
4.1TorsionalStressesonI-,C-,andZ-ShapedOpen
Cross-Sections
4.1.1PureTorsionalShearStresses
4.1.2ShearStressesDuetoWarping
4.1.3NormalStressesDuetoWarping
4.1.4ApproximateShearandNormalStressesDue
toWarpingonI-Shapes
4.2TorsionalStressonSingleAngles
4.3TorsionalStressonStructuralTees
4.4TorsionalStressesonClosedandSolid
Cross-Sections
4.5ElasticStressesDuetoBendingandAxialLoad
4.6CombiningTorsionalStresseswithOtherStresses
4.6.1OpenCross-Section
4.6.2ClosedCross-Sections
4.7SpecificationProvisions
4.7.1LoadandResistanceFactorDesign
4.7.2AllowableStressDesign
4.7.3EffectofLateralRestraintatLoadPoint
4.8TorsionalServiceabilityCriteria
5DesignExamples
AppendixA-TorsionalProperties
AppendixB-CaseGraphsofTorsionalFunctions
AppendixC-SupportingInformation
C.1GeneralEquationsfor?anditsDerivatives
C.1.1ConstantTorsionalMoment
C.1.2UniformlyDistributedTorsionalMoment
C.1.3LinearlyVaryingTorsionalMoment
C.2BoundaryConditions
C.3EvaluationofTorsionalProperties
C.3.1GeneralSolution
C.3.2TorsionalConstantJforOpen
Cross-Sections
C.4SolutionstoDifferentialEquationsfor
CasesinAppendixB
References
Nomenclature Abstract
Design and analysis of structural members subjected to torsional loading are covered in this Steel Design Guide. An update of the former AISC publication of similar name, coverage includes determination of torsional stresses, fundamentals of torsional theory, Specification provisions and serviceability issues. The design process are illustrated by design examples and the use of design aids.
