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Matrices de rigidez elementales

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MATRIZ DE RIGIDEZ PARA PORTICOS<br />

EA EI EI EI<br />

K = K1 = 12 K<br />

3 2 = 6 K<br />

2<br />

3 = 4<br />

L<br />

L<br />

L<br />

L<br />

General<br />

( )<br />

2 2<br />

1K 2K1 1 2 K K1 2K2<br />

A= γ + γ B= γ γ − C=<br />

γ<br />

2 2<br />

2K 1K1 E 1K2<br />

D= γ + γ = γ<br />

A B C A B C<br />

B D E B D E<br />

K <br />

C E K 3 C E K 3<br />

2<br />

A B C A B C<br />

B D E B D E<br />

C E K 3<br />

2<br />

C E K 3<br />

Barra paralela a ''X''<br />

K 0 0 K 0 0<br />

0 K 1 K 2 0 K 1 K 2<br />

K <br />

0 K 2 K 3 0 K 2<br />

K 3<br />

2<br />

K 0 0 K 0 0<br />

0 K 1 K 2 0 K 1 K 2<br />

0 K 2<br />

K 3<br />

2<br />

0 K 2 K 3<br />

Barra paralela a ''Y''<br />

K <br />

K 1 0 K 2 K 1 0 K 2<br />

0 K 0 0 K 0<br />

K 2 0 K 3 K 2 0<br />

K 3<br />

2<br />

K 1 0 K 2 K 1 0 K 2<br />

0 K 0 0 K 0<br />

K 2 0 K 2 0 K 3<br />

K 3<br />

2<br />

MATRIZ DE RIGIDEZ PARA RETICULADOS<br />

K K<br />

2<br />

1 1 2<br />

2<br />

1 1 2<br />

1 2<br />

2<br />

2 1 2<br />

2<br />

2<br />

2<br />

1 1 2<br />

2<br />

1 1 2<br />

1 2<br />

2<br />

2<br />

1 2<br />

2<br />

2


MATRIZ DE RIGIDEZ PARA EMPARRILLADOS<br />

General<br />

GJ EI EI EI<br />

K = K1 = 12 K<br />

3 2 = 6 K<br />

2<br />

3 = 4<br />

L<br />

L<br />

L<br />

L<br />

A 2 K 2 C 1 2 K 2 2 K 3 E 2 2 K 1 2 K 3 G 1 2 K 2<br />

2 K 3<br />

2<br />

B 1 K 2 D 1 2 K K 3 F 1 2 K K 3<br />

2<br />

H 2 2 K 1<br />

2 K 3<br />

2<br />

K <br />

K 1 A B K 1 A B<br />

A C D A G F<br />

B D E B F H<br />

K 1 A B K 1 A B<br />

A G F A C D<br />

B F H B D E<br />

Barra paralela a ''X''<br />

K <br />

K 1 0 K 2 K 1 0 K 2<br />

0 K 0 0 K 0<br />

K 2 0 K 3 K 2 0<br />

K 3<br />

2<br />

K 1 0 K 2 K 1 0 K 2<br />

0 K 0 0 K 0<br />

K 2 0<br />

K 3<br />

2<br />

K 2 0 K 3<br />

Barra paralela a ''Y''<br />

K <br />

K 1 K 2 0 K 1 K 2 0<br />

K<br />

K 2 K 3 0 K 3<br />

2<br />

2<br />

0<br />

0 0 K 0 0 K<br />

K 1 K 2 0 K 1 K 2 0<br />

K 2<br />

K 3<br />

2<br />

0 K 2 K 3 0<br />

0 0 K 0 0 K

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