β1 = 0,85 f'c = 250 fy = 4200

ρt = 0,01613988

ρselecc = 0,01

Rn = 37,83696

Mu = 32000

𝜙 = 0,9

b*d^2= 93970,4341

b= 65 cm

d= 38,0223485

Se asume d = 38,5 cm

rd = 6,5 cm

h = d+rd = 45 cm

SE COMPRUEBA SI TRABAJA COMO RECTANGULAR O COMO Te

As = ρ*b*d = 25,025 cm2

a = 7,60941176 cm

c= 8,95224913 cm

hf = 6 cm

Trabaja como Te

bw = 25 cm

Asf = 12,1428571 cm2

Mnf= 18105 kgf-m

Mnw = 17450,5556

aw = 9,772 cm

Mnw(2) = 17450,2879

Tanteo con aw

c= 11,4964706 cm

Asw = 12,3606062 cm2

As = 24,5034634 cm2

As min= 3,20833333 cm

As > As min ok

REVISIÓN Asb = 5,07 db = 2,54

y1= 6,223 cm A1 15,21

y2 = 8,763 cm A2= 10,14

rd = 7,239 cm

CÁLCULO DE d

d = 37,761 cm ACERO COLOCADO = 25,34 cm2

a = 7,70519457 cm

c= 8,95224913 cm C > hf

51000 kgf

12,1428571 cm2

17728,11 kgf-m

13,1971429 cm2

10,4335059 cm

18038,6253 kgf-m

35766,7353 kgf-m

As min= 3,14675 cm

As > As min ok

ab/d = 0,51

aw / d = 0,27630375 fs = fy

dt = 38,777 cm

actl/dt = 0,31875

aw / dt = 0,26906429

Control por tracción

32190,0617

Cumple