Civil Engineering Reference
In-Depth Information
200 kN
200 kN
14.34 kN/m
Case of loading 1
A
B
a
2.7
0.3 0.9
2.1
6m
Y
B
= 263.02 kN
Y
A
= 223.02 kN
200 kN
200 kN
14.34 kN/m
A
B
Case of loading 2
2.4
2.4
0.6
0.6
6 m
Y
A
= 243.02
Y
B
= 243.02 kN
Figure 4.42 Cases of loading for the maximum bending moment acting on an
intermediate stringer.
concentrated live loads, with maximum bending moment
located at
midspan as shown in
Figure 4.42
:
7
2
M
L
:
L
:
ð
case of loading 1
Þ ¼
223
:
02
2
:
7
14
:
34
2
:
=
2
¼
549
:
9kNm
34
6
2
5kNm
There is a single case of loading for live loads to produce a maximum
shear force at the supports of the stringer, which is shown in
Figure 4.43
:
M
L
:
L
:
ð
case of loading 2
Þ ¼
200
2
:
4+14
:
=
8
¼
544
:
Q
L
:
L
:
¼
403
:
02 kN
200 kN
200 kN
14.34 kN/m
A
B
Case of loading 1
1.2
4.8
6 m
Y
A
= 403.02 kN
Y
B
= 83.02 kN
Figure 4.43 Cases of loading for the maximum shear force acting on a stringer.
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