Post on 01-Oct-2015
description
DISEO DE COLUMNA CUADRADA CON CARGA AXIAL
PD = 136,200.00 kg. Carga Axial Muerta
PL = 227,000.00 kg. Carga Axial Viva
f'c = 280.00 kg/cm2
f'y = 4,220.00 kg/cm2
r = 2% Valor % de Ascero Longitudinal DIAMETROAREA
2 1/4" 0.635 0.32
FACTORIZANDO CARGA 3 3/8" 0.953 0.71
Pu = 526,640.00 kg. 4 1/2" 1.270 1.27
5 5/8" 1.588 1.98
DETERMINAR AREA BRUTA DE LA COLUMNA 6 3/4" 1.905 2.85
Ag = 3,188.42 cm2 Area Bruta Calculada 8 1" 2.540 5.07
9 1 1/8" 2.858 6.41
DIMENSIONES DE COLUMNA 10 1 1/4" 3.175 7.92
11 1 3/8" 3.493 9.58
b = 60 cm 12 1 1/2" 3.810 11.40
h = 60 cm % del Acero en Columnas =
Ag = 3600 cm2 Area Bruta Total. % minimo = 1%
% maximo = 8%
AREA DE ACERO % del Acero en Columnas en la Practica Real
As = 72 cm2 % minimo = 1%
r = 2.00% % maximo = 3%
ARMADO DE COLUMNA
4 1 1/2" 45.6 cm2
4 1 1/4" 31.68 cm2
77.28 cm2
PERIM. PESO DIAMTERO R
0.25 0.635 0.3175
0.251 0.56 0.9525 0.47625
3.99 0.994
4.99 1.552
5.98 2.235
7.98 3.976
0.997458
0.712559059