STAVEBNÍ MECHANIKA 3 - SM 3 - Jenin
STAVEBNÍ MECHANIKA 3 - SM 3 - Jenin
STAVEBNÍ MECHANIKA 3 - SM 3 - Jenin
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také v maticovém tvaru. Definujme<br />
[Cp] = L<br />
⎡<br />
1<br />
⎢ 0<br />
⎢ 0<br />
EA ⎢ 0<br />
⎣ 0<br />
0<br />
1<br />
0<br />
0<br />
0<br />
0<br />
0<br />
1<br />
0<br />
0<br />
0<br />
0<br />
0<br />
1<br />
0<br />
0<br />
0<br />
0<br />
0<br />
1.414<br />
0<br />
0<br />
0<br />
0<br />
0<br />
0 0 0 0 0 1.414<br />
{X1} = {0, 0, −1, 0, 0, 1.414} T<br />
{X2} = {−0.707, −0.707, −0.707, −0.707, 1, 1} T<br />
{F} = {0, 0, −1, 0, 0, 0} T<br />
[X] = [{X1}, {X2}]<br />
Užitím těchto vzorců dostaneme<br />
[CK] =<br />
<br />
δ11<br />
δ12<br />
δ21 = δ12 δ22<br />
<br />
= [X] T [Cp] [X]<br />
∆ 0 1 = {X1} T [Cp] {F} · F = 1, 0 · F srovnej s rov. (154)<br />
∆ 0 2 = {X2} T [Cp] {F} · F = 0, 71 · F<br />
⎤<br />
⎥<br />
⎦