Calculo

Columna A
-Peso Propio= 25573 kgf
-Sobre Carga= 5130 kgf

Pu= 1.4 x 25573 + 1.7 x 5130 Pn= (0.85 x Fc x Ac) + (Fy x As)
Pu= 44523 kgf
-Pu ≤ 0.8 x 0.7x Pn
-Pu ≤ 0.8 x 0.7 (0.85 x 200Ac) + (2800 x 0.015 x As) As=Ac x Cuantia
*445230.56 ≤ 170 Ac + 42 Ac

Ac ≥ 375 cm2
Ac ≥ √375 cm
Ac ≥ 20 cm
*Se assume 20 x 20= 400 cm2

As=0.015 x Ac
As= 0.015 x 400
As= 6 cm2
-4 fe de 12mm = 4.52 cm2
-400 cm2 - 4.52 cm2= 395.48cm2

*79595.36 ≤ 170 Ac + 42 As
-79505.36 ≤ (0.85 x 200 x 395.48) + (2800 x 0.015 x 4.52)-79505.36 ≤ 70887.6 CUMPLE!!!
-4 fe de 16mm = 8.04 cm2
-400 cm2 – 8.04 cm2= 391.96cm2

*79595.36 ≤ 170 Ac + 42 As
-79505.36 ≤ (0.85 x 200 x 391.96) + (2800 x 8.04)
-79505.36≤ 89145 CUMPLE!!!
-Cuantia 2%
-Seran 20 x 20; 4fe de 16mm

Columna B
-Peso Propio= 51247 kgf
-Sobre Carga= 11970 kgf

Pu= 1.4 x 51247 + 1.7 x 11970Pn= (0.85 x Fc x Ac) + (Fy x As)
Pu= 92094 kgf
-Pu ≤ 0.8 x 0.7 x Pn
-*920940.56 ≤ 0.8 x 0.7 (0.85 x 200Ac) + (2800 x 0.015 x As) As=Ac x Cuantia
-*164454212 ≤ AcAc ≥ 776 cm2
Ac ≥ √776 cm
Ac ≥ 27 cm
*Se assume 30 x 30= 900 cm2

As= 0.015 x Ac
As= 0.015 x 900
As= 13.5 cm2
-8 fe de 16mm = 16.08 cm2
-900 cm2 – 16.08 cm2= 884cm2

*79595.36 ≤ 170 Ac+ 42 As
-164454 ≤ (0.85 x 200 x 884) + (2800 x 16.08)
-164454 ≤ 195304 CUMPLE!!!
-Cuantia 1.8%
-Seran 30 x 30; 8fe de 16mm






Columna C
-PesoPropio= 52369 kgf
-Sobre Carga= 12160 kgf

Pu= 1.4 x 52369 + 1.7 x 12160 Pn= (0.85 x Fc x Ac) + (Fy x As)
Pu= 93989 kgf
-Pu ≤ 0.8 x 0.7 x Pn
-*939890.56 ≤0.8 x 0.7 (0.85 x 200Ac) + (2800 x 0.015 x As) As=Ac x Cuantia
-*167838 ≤ 212Ac
Ac ≥ 792 cm2
Ac ≥ √792 cm
Ac ≥ 28 cm = Asumimos 30 cm
*Se assume 30 x 30= 900 cm2

As=...