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Ultimate limit state
:
Design
of
concrete
T-beam
Swedish Annex
EU Standard
Material
Concrete :
C20/25
C25/30
C30/37
C35/45
C40/50
C45/55
C50/60
f
ck
=
20 MPa
Steel :
K500C-T
K600B-T
f
yk
=
500 MPa
Section
h
w
=
mm
b
w
=
mm
h
f
=
mm
b
eff
=
mm
beff using EC2
b
eff,1
=
mm
b
eff,2
=
mm
Ultimate loads
M
Ed
=
kNm
V
Ed
=
kN
Diameter
d
sl
:
Ø
12
16
20
25
28
mm
d
st
:
Ø
6
8
10
12
mm
Cover
Bottom
Top
XC1
XC1
Max vct
ekv
=0,90
=0,60
Max vct
ekv
=0,90
=0,60
c
v,1
=
20
mm
c
v,2
=
20
mm
Manual calculation
c
v,2
=
mm
c
v,1
=
mm
Settings
: A
s,min
: A
sw,min
α
cc
:
0.85
0.90
0.95
1.00
Life class :
L20
L50
L100
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Effective width of flanges (5.3.2.1 SS-EN1992-1-1:2005)
b
1
=
mm
b
2
=
mm
b
w
=
mm
i)
ii)
iii)
iv)
l
1
=
mm
l
2
=
mm
l
3
=
mm
b
eff,i
=
0.2b
i
+ 0.1l
0
≤ 0.2l
0
och ≤ b
i
b
eff
=
Σb
eff,i
+ b
w
≤ b
Exposure classes according to SS-EN 206-1
c
v,1
= c
v,2
Description according to SS EN 206
XC1
XC2
XC3
XC4
XD1
XD2
XD3
XS1
XS2
XS3
XC1
XC2
XC3
XC4
XD1
XD2
XD3
XS1
XS2
XS3
Dry or peramnently wet
Concrete inside buildings
with low air humidity
Wet, rarely dry
Concrete surfaces subject to
long-term water contact
Moderate humidity
Concrete inside buildings with
moderate or high air humidity
Cyclic wet and dry
Concrete surfaces subject to
water contact, not within XC2
Moderate humidity
Concrete surfaces exposed to
airborne chloridesr
Wet, rarely dry
Concrete exposed to industrial
waters containing chlorides
Cyclic wet and dry
Parts of bridges exposed to
spray containing chlorides
Exposed to airborne
salt
Structures near to or on the
coast
Permanently
submerged
Parts of marine structures
Tidal, splash and
spray zones
Parts of marine structures
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