TUB 2765 SHS Welded Joints - Tata Steel
TUB 2765 SHS Welded Joints - Tata Steel
TUB 2765 SHS Welded Joints - Tata Steel
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Figure 26 : Knee joint efficiency for θ ≤ 90º<br />
Figure 27 : Knee joint efficiency for θ > 90º<br />
30<br />
90º Joint efficiency - 90<br />
Efficiency at 0º - 0<br />
1.0<br />
0.9<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
0.4<br />
0.0<br />
1.0<br />
0.9<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
0.4<br />
0.3<br />
31 Design of <strong>SHS</strong> welded joints<br />
Angle<br />
180º<br />
165º<br />
150º<br />
135º<br />
120º<br />
105º<br />
90º<br />
0.5 1.0 1.5 2.0 2.5 3.0<br />
RHS shape ratio - b0 /h0<br />
0.4<br />
Reinforced knee joints<br />
0<br />
Figure 28 : Reinforced knee joint<br />
b0 /t0<br />
10<br />
15<br />
20<br />
25<br />
30<br />
35<br />
0.5 0.6 0.7 0.8 0.9 1.0<br />
90º Joint efficiency - 90<br />
tp<br />
t<br />
Knee joints can easily be reinforced by using a plate as<br />
shown in figure 28<br />
If tp ≥ 1.5 t and ≥ 10mm<br />
then the joint will be 100% efficient and<br />
Napp Mapp + ≤ 1.0<br />
A fy Wpl fy
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