Axial Load & Moment Interaction Diagram for RCFT & SCFT
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Transcript of Axial Load & Moment Interaction Diagram for RCFT & SCFT
RECTANGULAR CONCRETE FILLED STEEL TUBE SECTION
(d/b = 0.5, E250 GRADE STEEL
Chart No:1 Compression with M
cck
s
bp
pARatioSteel =λ
concreteofWidth
concreteofDepth
sec
sec
RECTANGULAR CONCRETE FILLED STEEL TUBE SECTION
E250 GRADE STEEL (fy = 250MPa) & M25 GRADE CONCRETE)
Chart No:1 Compression with Minor Axis Bending for Depth to Width Ratio of
c
y
d
p
5.1&
1.1
ckck
y
y
fp
fp ==
tbbtion
tddtion
c
c
2sec
2sec
−=
−=
1
RECTANGULAR CONCRETE FILLED STEEL TUBE SECTION
& M25 GRADE CONCRETE)
or Axis Bending for Depth to Width Ratio of 0.5
SQUARE CONCRETE FILLED STEEL TUBE SECTION
(d/b = 1.0, E250 GRADE STEEL (f
Chart No: 2 Compression with Uniaxial Bending for Depth to Width Ratio of 1
ck
s
p
ARatioSteel =λ
concreteofWidth
concreteofDepth
CONCRETE FILLED STEEL TUBE SECTION
(d/b = 1.0, E250 GRADE STEEL (fy = 250MPa) & M25 GRADE CONCRETE)
Chart No: 2 Compression with Uniaxial Bending for Depth to Width Ratio of 1
cc
ys
db
p
5.1&
1.1
ckck
y
y
fp
fp ==
tbbtion
tddtion
c
c
2sec
2sec
−=
−=
2
CONCRETE FILLED STEEL TUBE SECTION
= 250MPa) & M25 GRADE CONCRETE)
Chart No: 2 Compression with Uniaxial Bending for Depth to Width Ratio of 1
RECTANGULAR CONCRETE FILLED STEEL TUBE SECTION
(d/b = 2, E250 GRADE STEEL (f
Chart No: 3 Compression with Major Axis Bending for Depth to Width Ratio of 2
ck
s
bp
ARatioSteel =λ
concreteofWidth
concreteofDepth
sec
sec
RECTANGULAR CONCRETE FILLED STEEL TUBE SECTION
(d/b = 2, E250 GRADE STEEL (fy = 250MPa) & M25 GRADE CONCRETE)
Chart No: 3 Compression with Major Axis Bending for Depth to Width Ratio of 2
cc
y
db
p
5.1&
1.1
ckck
y
y
fp
fp ==
tbbtion
tddtion
c
c
2sec
2sec
−=
−=
3
RECTANGULAR CONCRETE FILLED STEEL TUBE SECTION
= 250MPa) & M25 GRADE CONCRETE)
Chart No: 3 Compression with Major Axis Bending for Depth to Width Ratio of 2