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2. Check the shear capacity of the 50 x 50 x 2.0 DuraGal SHS Grade C450L0 beam in Example 2<br />
from Section D4.1.6.<br />
Design Data:<br />
Design shear force<br />
Solution:<br />
V * = 0.8 kN<br />
Design shear capacity of the section<br />
φV v = 44.2 kN (Table D3.1-2)<br />
> V *<br />
Therefore the 50 x 50 x 2.0 DuraGal SHS Grade C450L0 is satisfactory.<br />
3. Check the 150 x 50 x 3.0 DuraGal RHS Grade C450L0 beam in Example 1 from Section D4.1.6 for<br />
the interaction of shear and bending.<br />
Design Data:<br />
Design shear force V * = 9 kN<br />
Design shear capacity φV vx = 195 kN (Table D3.1-1)<br />
Design bending moment M * = 18 kNm<br />
Design member moment capacity φM sx = 20.8 kNm (Table D3.1-1)<br />
Solution:<br />
0.75 φM sx = 0.75 x 20.8 = 15.6 kNm<br />
then M * > 0.75 φM sx<br />
⎡<br />
therefore φV vm = φ 16M<br />
Vv<br />
⎢22<br />
. − ⎛ ⎝ ⎜<br />
⎣<br />
⎢ φM<br />
L<br />
NM<br />
= 195 2.<br />
2<br />
= 159 kN<br />
− F H G<br />
.<br />
∗<br />
sx<br />
16 . x18<br />
20.<br />
8<br />
⎞⎤<br />
⎟⎥<br />
⎠⎦<br />
⎥<br />
I K JO<br />
QP<br />
therefore V * = 9 kN < φV vm =159 kN<br />
Therefore the 150 x 50 x 3.0 DuraGal RHS Grade C450L0 is satisfactory.<br />
DCTDHS/06<br />
DuraGal DESIGN CAPACITY TABLES<br />
MARCH 2002 for STRUCTURAL STEEL HOLLOW SECTIONS D4-9
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