09.12.2015 Views

SOLUCION-DE-ARMADURAS-CON-MATRIZ-DE-RIGIDECES

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Paso 1: establecer la matriz de rigidez para cada<br />

miembro (Ejemplo)<br />

λ x = Cos ∅ x = X F − X N<br />

L<br />

=<br />

3 − 0<br />

3 − 0 2 + 4 − 0 = 3 2 5<br />

Y<br />

λ y = Cos ∅ y = Y F − Y N<br />

L<br />

=<br />

4 − 0<br />

3 − 0 2 + 4 − 0 = 4 2 5<br />

F(3,4)<br />

Entonces:<br />

N(0,0)<br />

X<br />

K = AE L<br />

9/25<br />

12/25<br />

−9/25<br />

−12/25<br />

N x N y F x F y<br />

N x<br />

12/25<br />

16/25<br />

−12/25<br />

−16/25<br />

−9/25<br />

−12/25<br />

9/25<br />

12/25<br />

−12/25<br />

−16/25<br />

12/25<br />

16/25<br />

N y<br />

F x<br />

F y<br />

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