Document Information
Document Type: FAQ Product(s): LEAP CONSPAN/Precast/Prestressed Girder Version(s): All Original Author: Bentley Technical Support Group -VM
Document Type: FAQ
Product(s): LEAP CONSPAN/Precast/Prestressed Girder
Version(s): All
Original Author: Bentley Technical Support Group -VM
ANSWER:
Please follow the below mentioned procedure to calculate the shear resistance ration at 0.1L location . The code we are refereeing is AASHTO LFD code.
Stirrup Information :
No of Legs = 2
Rebar Size = # 3
Rebar Dia = 0.11 in
Spacing = 12 in
General Information :
F'c = 5000 psi
Fy = 60 Ksi
d = 52 in
Phi = 0.9 for Shear
Calculation :
Av = 2 x 0.11 = 0.22 in^2
Vu = 44.9 kips
Vcw = 113.7 kips
Vci = 179.5 kips
Vc = Min (Vcw,Vci) = 113.7 kips
Vs provd = (Av x Fy x d) / S
Vs provd = ( 0.22 x 60 x 52 ) / 12
Vs provd = 57.2 kips
Phi Vn = 0.9 ( Vs provd + Vc )
Phi Vn = 153. 81
Ratio = Phi Vn / Vu = 153.81 / 44.9
Ratio = 3.43
Please see the attached screenshot for more information.