Prueba
DATOS:
F’c = 30 MPA
Fy = 420 MPA
L = 5000MM
D = 30KN/m
L (carga) = 60KN/m
b =300mm
W=1.7L+1.4D
w=1.760+ 1.430
W=144KNm
Mu1= wd214
Mu1= 1445214
Mu1=257,14 KNm2 x 10002
Mu1=257,14 MNmm
Mu2= wd224
Mu2=144(5)224
Mu2=150 KNm2 x 10002
Mu2=150MNmm
Mn1= Mu1∅Mn2=Mu2∅
Mn1=257,140.9 Mn2= 1500.9Mn1=285,71 MNmm Mn2=166,7 MNmm
α=0,72-0,04(f'c-28)7
α=0,72-0,0430-287
α=0,709
ρmax=0.43αf'cfy
ρmax=0.43(0.709)30420
ρmax=0.0218
R=ρfy(1-0.59ρfyf'c
R=0.0218420(1-0.590.021842030)
R=7.5
Mn=Rbd2
d= MnRb
d= 285,77.5(300)
d=356.3mm
w=Pu=144KNm Reacción R = Pu x d2
b=bw=300mmR= 144 x 52
λ=1 R=360 KN
Vu360= 21442500ϕVn=Vu
Vu= 360(2144)2500 Vn= Vuϕ
Vu=308,7 KN Vn= 308.70.85
Vc=0,17λ f'c bw d...
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