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Design of Structural Steel Joints

Design of Structural Steel JointsDr. Klaus WeynandFeldmann + Weynand GmbH, Aachen, GermanyProf. Jean-Pierre JaspartUniversity of Li ge, BelgiumDesign of Structural Steel Joints Introduction Integration of Joints into Structural Design process Moment resistant Joints Simple Joints Design toolsDesign of Structural Steel Joints Introduction Integration of Joints into Structural Design process Moment resistant Joints Simple Joints Design toolsEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014EN 1993 Part 1 IntroductionChapter 2 Basis of designChapter 3 Connections made with bolts, rivets or pinsChapter 4 Welded connectionsChapter 5 Analysis.

Design of Structural Steel Joints • Introduction • Integration of joints into structural design process • Moment resistant joints • Simple joints

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Transcription of Design of Structural Steel Joints

1 Design of Structural Steel JointsDr. Klaus WeynandFeldmann + Weynand GmbH, Aachen, GermanyProf. Jean-Pierre JaspartUniversity of Li ge, BelgiumDesign of Structural Steel Joints Introduction Integration of Joints into Structural Design process Moment resistant Joints Simple Joints Design toolsDesign of Structural Steel Joints Introduction Integration of Joints into Structural Design process Moment resistant Joints Simple Joints Design toolsEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014EN 1993 Part 1 IntroductionChapter 2 Basis of designChapter 3 Connections made with bolts, rivets or pinsChapter 4 Welded connectionsChapter 5 Analysis.

2 Classification and modellingChapter 6 Structural Joints connecting H or I sectionsChapter 7 Hollow section jointsEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Design of simple jointsECCS Publication No126 (EN) Background information Design guidelinesEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 20142 Basis of Design Partial safety coefficientsEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 20143 Connections made mechanical fastenersEurocodes - Design of Steel buildings with worked examplesBrussels.

3 16 -17 October 20144 Welded connectionsDesign of Structural Steel Joints Introduction Integration of Joints into Structural Design process Moment resistant Joints Simple Joints Design toolsEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Actual joint responseEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Actual joint responseM M RdS j,ini cdEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Influence on the Structural response Displacements Internal forces Failure mode and failure load Eurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014M M ?

4 ??M CharacterizationModellingClassificationI dealizationFour successive steps for Structural integrationEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 CharacterizationSearch for a unified approach whatever the materialM ???Eurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Various configurations (1)ContinuityBeam-to-beamColumnbasesEuro codes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Various configurations (2) Joints in portal framesEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Various configurations (3)Connections and Joints incomposite constructionEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Various cross-section shapes (1)

5 Hot-rolled andcold-formedEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Various cross-section shapes (2)Built-up profiles Eurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Various connection elementsSplicesCleatsEnd platesEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 EconomyReduced fabrication, transportation and erection costs Eurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Specific Design criteriaRobustness Joints as key elementsEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Characterization (1)Search for a unified approachM ?

6 ??Eurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Characterization (2)Eurocode 3 Part 1-8 Beam-to-beam Joints , splices, beam-to-column Joints and column bases: welded connections bolted connections (anchors for column bases)Background:COMPONENT METHODE urocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Three stepsFirst stepIdentification of the active componentsSecond step:Response of the componentsThird step: Assembly of the componentsFFFE k1E k2E k3F1,RdF2,RdF3,Rd column webin shearcolumn webin tensioncolumn webin compressionMSj,iniMj,Rd cd ,,minj Rdi RdMFz 2,1j iniiEzSk Characterization (3) -component methodEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Characterization (4) -component methodEC3 Part 1-8 provides therefore.

7 A library of components rules for the evaluation of the properties of the components (stiffness, resistance, deformation capacity) rules for the evaluation of the possible component interactions assembly rules for componentsApplicable for simple joint and moment resistant jointEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Characterization (4) Hollow section jointsDifferent approach for lattice girder jointsFor many types of joint configurations: Joints considered as a whole Check of relevant failure modes Scope of application to be checkedEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014M M ?

8 ??M CharacterizationModellingClassificationI dealizationFour successive steps for Structural integrationEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Classification (1)StiffnessSj,ini PinnedSemi-rigidRigidMjBoundaries for stiffnessJoint initial stiffnessSemi-rigidRigidPinnedClassifica tion boundariesInitial joint stiffnessEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Classification (2)ResistanceMj,RdPartial-strengthFull-s trengthPinned MjBoundaries for strengthJoint strengthFull resistancePartial resistancePinnedClassification boundariesJoint resistanceEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 Classification (3)Ductility Brittle Semi-ductile Ductile MjEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014M M ?

9 ??M CharacterizationModellingClassificationI dealizationFour successive steps for Structural integrationEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 ModellingJOINTMODELLINGBEAM-TO-COLUMN JOINTSMAJOR AXIS BENDINGBEAMSPLICESCOLUMNBASESSIMPLESEMI- CONTINUOUSCONTINUOUS Eurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014M M ???M CharacterizationModellingClassificationI dealizationFour successive steps for Structural integrationDesign of Structural Steel Joints Introduction Integration of Joints into Structural Design process Moment resistant Joints Simple Joints Design toolsEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 ExampleSingle sided beam-to-column joint configuration, bolted end-plate connection++++MV153 IPE220 HEB14012060108030302404 M16 be evaluated: Design moment resistance , initial stiffness011, 01, 0MM Material.

10 S 235 Eurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 General data22140 2 12 2 12 92wccfcchhtrmm 2224295, 6 2 140 127 2 12 12 1307, 6vccc fcwccAAb ttrmm 80 70,80,8 12 26,922fccwtmrmm 140 803022cbwemm 22,0122350, 250, 258460/1, 0fcycpl fcMtfmNmm mm ColumnEquivalent T-stub in tensionF/4tFtF/4tF/4tF/4tmeleffEurocodes - Design of Steel buildings with worked examplesBrussels, 16 -17 October 2014 General data++++153 IPE22012060108030302404 M16 , 2220 1060 165, 422fbbtzhupmm 6,, 235 10 (classe 1 section)


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