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ESTRUCTURAS-EN-CONCRETO-JORGE-SEGURA-FRANCO-7ED-pdf

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Estructuras de Concreto 1 --------------------<br />

~--------------------Capítulo 8 Cimentaciones<br />

Armadura: 6 1/2" c/0.15 m.<br />

2) Viga bajo columna interior:<br />

Ancho de la viga= 0.25 + 2*0.56 = 1.37 m<br />

Detalle del refuerzo<br />

0<br />

Sección<br />

É.65<br />

Figura 8.28<br />

850<br />

qt = = 414.63kN/m<br />

2.05<br />

V borde = 414.63*0.70 = 290.24 kN<br />

= 1.5*290.24 = 435.36kN<br />

Con el mismo "d" anterior:<br />

0<br />

0.81<br />

t---f<br />

''Ü 1<br />

0.25í l<br />

0 .125<br />

4.75<br />

L-7.05<br />

0<br />

~,;0.685<br />

' 1<br />

1.24<br />

1 r1 J<br />

ll 1.80<br />

0.25<br />

i<br />

Corte A-A<br />

Ve = 0.75 * 0.17 * .fiiJ. * 1.37 * 0.55 * 1000 = 440.97 kN<br />

Vu < Ve<br />

M borde<br />

= 414.63 * 0.70 2 = 101. 58 kN·m.<br />

2<br />

:. Mn = 1.5*101.58 = 152.37kN·m<br />

p = 1.33*0.00098 = 0.00130<br />

:.As = 0.00130*1.37*0.55 = 0.000980 m 2<br />

Armadura: 8 1/2" d0.195<br />

0.25<br />

Corte C-C<br />

1005/8 L•6.25 c/0.20<br />

e:<br />

6.025<br />

l _ 1005/8 L-3.00 c/0.20<br />

J.._.!J1Q.._.J.<br />

1301/2 L-!.SOc/0.155<br />

1.325<br />

!.50<br />

1005/8 L-3.00c/0.20 ...,<br />

2.775<br />

1005/8 L-4.50c/0.20<br />

4.275<br />

Figura 8.29<br />

601/2L-2.25c/0.15<br />

1.90<br />

0.55~.55<br />

0.125 0.125<br />

Estribos en ·u· 03/8L-1.85c/0.50<br />

Corte B~B<br />

801/2L-2.25c/0.195<br />

1.90<br />

0.50<br />

o.55Jlo.55<br />

0.125 0.125<br />

Estribos en ·u · 03/8L-1.85c/0.50<br />

468<br />

469

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