typical connections for hollowsections
DESCRIPTION
sectiuni profilemetalTRANSCRIPT
t i
t f
t f
e1 e2di
Ni
Ni
Fig. 12.1 Bolted CHS flange plate connection
Yield lines
mpmp
Bolt failure Yield mechanisms with prying force
A A
A - A
Fig. 12.2 Failure modes for bolted CHS flange plate connections
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Bolts on two sides only
Four and eight bolt configurations
Fig. 12.3 Bolted RHS flange plate connections
Bolt holediameter = d'
Typical locationof hoggingplastic hinges
p
p
p
abbi2
a' b'
t i
Fig. 12.4 RHS flange plate connection with bolts at two sides
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a
b
c
d
eFig. 12.5 Bolted shear end connections
Cut-out tofacilitate bolting
Weld along RHS at4 corners withweld length bi
Shim if required
a) Simple shear splice b) Modified shear splice
Fig. 12.6 Some examples of bolted gusset plate connections
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L
s
A A
g1
g2
g2
Tension segment
Inclined segmentsShear segments
Allowance fordiameter = d'
Effective net area for critical section A-A is the sum of the individual segments : for tension segment : (g1 - d'/2)t
s2
4g2{( ) for each inclined segment : (g2 - d')t + }t
for shear segments : 0.6(L - 2.5d')t
Fig. 12.7 Calculation of effective net area for a gusset plate
30o
30o
First bolt row
Last bolt row
Σp
f yp
g + 1.15Σpg
Ni
Fig. 12.8 Whitmore criterion for gusset-plate yielding
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Fig. 12.9 Bolted splice connection for CHS
t1 t2
2 x t1 = t2
t1
Fig. 12.10 Hidden bolted splice connection
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a b
c d
e f
Fig. 12.11 Bolted connections for lattice girder supports
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Cleatfor assemblypurpose
IPE or HE offcut
IPE
Plate
Fig. 12.12 I-section beam to CHS-column connections
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for assembly
Channel or RHSoffcut
IPE
Plate
1/2 IPE
a b
c d
e f
Fig. 12.13 I-section beam to RHS column simple shear connections
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flange
shim plate, if needed
Channel
a b
c d
Fig. 12.14 Moment connections between open section beams and CHS or RHS columns
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plate
L
Fig. 12.15 Hollow section cross members connected to I-section columns
Fig. 12.16 Knee joint assemblies for portal frames
a b
Fig. 12.17 Bracket connections
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IPEbent strip strip
Z section
welded stud
a b
c d
e f
Fig. 12.18 Purlin connections
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