typical steel connections

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Typical Steel

Connections

Dr. Seshu Adluri


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Steel Connections -Dr. Seshu Adluri

Introduction

Steel ConnectionsMany configurations are used for force

transfer in connections. Theconfiguration depends upon the type ofconnecting elements, nature and

magnitude of the forces (and moments),available equipment, fabrication anderection considerations, cost, etc.


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Rivets


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Bolts


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Connections

Many types based on function Beam-to-Beam Connections Beam-to-Column Connections

Column-to-Column Connections Column Base Plates

Pocket Beam

Gusset plate connections (truss type, frame type,bracings, )

Splices (cover plates, )


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Cover plates



Cover plates



Column splice



Gusset plateconnections



Force dispersion to gusset plates



Steel Framing Connections

Framed Connections Bolts only in web, not the flanges

Transmits only shear

Not bending moment

Accomplished with clip angles & bolts/welds

Moment Connections Transmit shear & moment

Flanges must be connected

Bolt/Weld Flanges

May require column stiffeners



Framedconnections

Only shear transfer

Equivalent to pinned

end for the beam

No moment at the

beam end

Rotation is freely (?)

allowed



Framedconnections

End reaction only

Web of the beam is

connected

No connection for

the flanges



Transfer

of shear

force in

frames



Beam-to-beam connections



Beam-to-beam

connections



Beam-to-column connections



Beam-to-column

connections



Beam tocolumn joints



Beam to column joints



Beamto

columnjoints



Beam-to-column

connections



Beam to Column Rigid Joints

Bending moment from the

beamColumn

Beam



Beam to Column Rigid Joints The bending

moment of thebeam is primarilytaken by the

flanges in the formof tension andcompressionforces


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Beam to Column

Rigid Joints


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Beam to ColumnRigid Joints


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Beam to Column Rigid Joints Stiffener plates are

used to shore upthe column flangesagainst the forces

transmitted by thebeam flanges. Thestiffeners may be fulllength or may extend

only part of thecolumn web depth.


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Beam plate buckling

Beam web crippling

Beam flange local buckling


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Beam plate buckling

Beam web buckling (look closely)

Beam web local yielding


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Concentrated forces on webs


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Beam to Column Semi-Rigid

Joints


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Beam to Column Rigid Joints Stiffener plates are

used to shore upthe column flangesagainst the forces

transmitted by thebeam flanges. Thestiffeners may be fulllength or may extend

only part of thecolumn web depth.


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Beam to Column Rigid Joints The bending

moment of thebeam is primarily

taken by the

flanges in the formof tension and

compression forces

The bendingmoment of thecolumn is alsoresolved as a force

couple

Column

Beam


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Beam to Column Rigid Joints Stiffeners help in

distributing the forces inthe connection zone andin avoiding local rupture,

crushing or buckling ofthe beam web. Column

Beam


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Beam toColumn

RigidJoints


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Beam Splices


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Beam Splices


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ColumnSplices


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ColumnSplices


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Connections forBents (Eves)


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Connections forBents (Eves)


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Connections

in frames


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Bracing

Connections

in frames


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Column Bases


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Column Base Anchors


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Beam-to-wall connections


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Beam-to-wall connections


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References

Many pictures in this file are taken fromvarious sources such as CISC, AISC, etc.The copyrights for those materials are with

the original sources. No copyright isclaimed or implied by Dr. Seshu Adluri forthings that are already under copyright

protection. This file is for teachingpurposes.

typical steel connections

Documents

steel connections

beam connections beam

typical steelconnectionsdr

seshu adluriforce dispersion

column connectionscolumn

function beam

shear moment flanges

frame type