Civil Engineering Reference
In-Depth Information
r
I
y
A
r
7623
178
i
y
¼
¼
¼
6
:
54 cm
:
32
l
b
y
¼
5760mm
l
b
x
¼
6400mm
L
cr
i
1
l
1
l¼
l
1
¼
93
:
9
0
:
924
¼
86
:
7636
5760
65
1
l¼
4
7636
¼
1
:
015
:
86
:
The axial compressive force in the vertical member D
4
(
N
Ed
¼
1935.7 kN):
N
Ed
N
b
,
Rd
1
:
0
wAf
y
g
M1
where
N
b
,
Rd
¼
1
F
+
w¼
p
but
w
1
:
0
l
2
F
2
h
i
+
l
2
51+
a l
0
F¼
0
:
:
2
¼
1
015
2
F¼
0
:
51+0
:
49 1
ð
:
015
0
:
2
Þ
+1
:
:
219
1
219 +
p
w¼
¼
0
:
528 but
w
1
:
0
219
2
015
2
1
:
1
:
1
:
0
:
528
17832
275
1
Then,
N
b
,
Rd
¼
¼
2,353,824N
:
1
N
b
,
Rd
¼
2353
:
8kN
>
N
Ed
¼
1935
:
7 kN Then O
ð
:
K
:
Þ
4.6.3.22 Design of Stringer-Cross Girder Connection
The stringer is designed as a simply supported beam on cross girders; the-
refore, the connection is mainly transferring shear forces (maximum
reaction from stringers of 574 kN) (see
Figure 4.204
)
. Using M27 high-
strength pretensioned bolts of grade 8.8, having
f
ub
of 800 MPa, shear area
A
of 4.59 cm
2
, and gross area
A
g
of 5.73 cm
2
,wecandeterminethe
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