Deformasjonsmetoden
Deformasjonsmetoden
Deformasjonsmetoden
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Elementanalyse<br />
30 m<br />
90 m<br />
P<br />
θ 2<br />
w 2<br />
θ 3 w 3<br />
EI<br />
l<br />
4EI<br />
l<br />
75 m<br />
2EI<br />
l<br />
Bjelke 12 :<br />
⎡ 1 1⎤ ⎡ 117 ⎤<br />
− −<br />
2<br />
P<br />
⎡ Q21 ⎤ 3EI ⎢ ⎥ ⎡w<br />
2 ⎤ ⎢ 128 ⎥<br />
=<br />
l l<br />
⎢<br />
M<br />
⎥ ⎢ ⎥ +<br />
21 1<br />
⎢ ⎥ ⎢ ⎥<br />
⎣ ⎦ l ⎢ θ2<br />
21<br />
− 1 ⎥ ⎣ ⎦ ⎢ Pl<br />
⎥<br />
⎢⎣<br />
l ⎥⎦<br />
⎢⎣ 128 ⎥⎦<br />
Bjelke 23 Bjelke 34<br />
M<br />
M<br />
23<br />
32<br />
4EI<br />
= 4<br />
l<br />
4EI<br />
= 4<br />
l<br />
⎛<br />
θ ⎜⎝<br />
⎛<br />
θ ⎜⎝<br />
23<br />
32<br />
+<br />
+<br />
1<br />
θ<br />
2<br />
1<br />
θ<br />
2<br />
32<br />
23<br />
⎞<br />
⎟⎠<br />
⎞<br />
⎟⎠<br />
⎡ Q<br />
⎢⎣ M<br />
34<br />
23<br />
⎤<br />
⎥⎦<br />
2EI<br />
= 3<br />
l<br />
⎡ 1<br />
2<br />
l<br />
1<br />
⎢⎢⎢<br />
−<br />
⎣ l<br />
1⎤<br />
−<br />
l w3<br />
⎤<br />
1 ⎥⎥⎥⎡<br />
⎢⎣ θ<br />
3<br />
⎥⎦<br />
⎦