Ejem,plo de los Calculo de Columnas

EJE 2-B

Primer nivel

PU= (981 KG/M2)( 7.05X8.05)=  55674

AC= (55674 KG) / 207.55 = 268.24

L= [pic 1] 268.24 = 16.37cm → 25  cm → 25 x 25 cm seccion de la columna

AC= 625 cm2 ------→ 625 x 0.02 --→ 12.5 cm2 -----→ 

Propuesta de armado [pic 2]

6 vrs # 6 ---→ as= 17.10 cm2    

Estribos

Vr #3

• 16 (1.9) = 30.4
• 48 (0.95) = 45
• 25 cm ←

Estribos vr# 3 @ 25 cm

Planta alta

Pu= 55674 + [(1039kg/m2)(56.75)] +[(0.25)(0.25) (4.00)(2400)(1.2) = 55674 + 58963.25 + 720= 115357.25

Ac= 115357.25 / 207.55 = 555.80

L= [pic 3]555.80 = 23.5 cm → 25 cm → 25 x 25 cm la seccion de la columna

AC= 625 cm2 ------→ 625 x 0.02 --→ 12.5 cm2 -----→ 

Propuesta de armado [pic 4]

6 vrs # 6 ---→ as= 17.10 cm2

Estribos

Vr #3

• 16 (1.9) = 30.4
• 48 (0.95) = 45
• 25 cm ←

Estribos vr# 3 @ 25 cm

Planta baja

Pu=115357.25 + [(1039kg/m2)(56.75)] +[(0.25)(0.25) (4.50)(2400)(1.2) = 115357.25 + 58963.25 + 810= 175130.5

Ac=175130.5   / 207.55 =843.79

L= [pic 5]843.79 = 29.04 cm → 30 cm → 30 x 30 cm la seccion de la columna

AC= 900 cm2 ------→ 900 x 0.02 --→ 18  cm2 -----→ 

Propuesta de armado

8 vrs # 6 ---→ as= 22.72 cm2

Estribos [pic 6]

Vr #3

• 16 (1.9) = 30.4
• 48 (0.95) = 45
• 30 cm ←

Estribos vr# 3 @ 30 cm

sotano

Pu= 175130.5 + [(1039kg/m2)(56.75)] +[(0.25)(0.25) (4.00)(2400)(1.2) = 175130.5  + 58963.25 + 720= 234813.75

Ac=234813.75   / 207.55 = 1131.35

L= [pic 7]1131.35 = 33.63 cm → 35 cm → 35 x 35 cm la seccion de la columna

AC= 1225 cm2 ------→ 1225 x 0.02 --→ 24.5  cm2 -----→ [pic 8]

Propuesta de armado

10 vrs # 6 ---→ as= 28.7 cm2

Estribos

Vr #3

• 16 (1.9) = 30.4 ←
• 48 (0.95) = 45
• 35 cm

Estribos vr# 3 @ 30 cm

Eje 3 – c

Primer nivel

PU= (981 KG/M2)( 3.65X4.15)=  14859.69

AC= (14859.69) / 207.55 = 71.59

L= [pic 9] 71.59 = 8.46cm → 25  cm → 25 x 25 cm seccion de la columna

AC= 625 cm2 ------→ 625 x 0.02 --→ 12.5 cm2 -----→ 

Propuesta de armado

6 vrs # 6 ---→ as= 17.10 cm2[pic 10]

Estribos

Vr #3

• 16 (1.9) = 30.4
• 48 (0.95) = 45
• 25 cm ←

Estribos vr# 3 @ 25 cm

Planta alta

Pu= 14859.69KG + [(1039kg/m2)( 3.65X4.15)] +[(0.25)(0.25) (4.00)(2400)(1.2) = 14859.69KG + 15738.25+ 720= 31317.94

Ac=31317.94   / 207.55 = 150.89

L= [pic 11]150.89= 12.28 cm → 25 cm → 25 x 25 cm la seccion de la columna

AC= 625 cm2 ------→ 625 x 0.02 --→ 12.5 cm2 -----→ 

Propuesta de armado

6 vrs # 6 ---→ as= 17.10 cm2[pic 12]

Estribos

Vr #3

• 16 (1.9) = 30.4
• 48 (0.95) = 45
• 25 cm ←

Estribos vr# 3 @ 25 cm

Planta baja

Pu= 31317.94 + [(1039kg/m2)( 3.65X4.15)] +[(0.25)(0.25) (4.50)(2400)(1.2) = 31317.94 + 15738.25+ 810= 47866.19

Ac=47866.19   / 207.55 = 230.62

L= [pic 13]230.62= 15.18 cm → 25 cm → 25 x 25 cm la seccion de la columna

AC= 625 cm2 ------→ 625 x 0.02 --→ 12.5 cm2 -----→ 

Propuesta de armado [pic 14]

6 vrs # 6 ---→ as= 17.10 cm2

Estribos

Vr #3

• 16 (1.9) = 30.4
• 48 (0.95) = 45
• 25 cm ←

Estribos vr# 3 @ 25 cm

Sotano

Pu= 47866.19 + [(1039kg/m2)( 3.65X4.15)] +[(0.25)(0.25) (4.00)(2400)(1.2) = 47866.19 + 15738.25+ 720= 64324.44

Ac=    / 207.55 = 309.92

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