RECTANGULAR CONCRETE BEAM/SECTION ANALYSIS 
Flexure, Shear, Crack Control, and Inertia for Singly or Doubly Reinforced Sections 
Per ACI 31805 Code 
Hover Curser over Results Value to See Notes 










Input Data: 



















Beam or Slab Section? 







Exterior or Interior Exposure? 







Reinforcing Yield Strength, fy = 

ksi 





Concrete Comp. Strength, f 'c = 

ksi 







in. 





Depth to Tension Reinforcing, d = 

in. 







in. 





Tension Reinforcing, As = 

in.^2 













Tension Reinf. Bar Spacing, s1 = 

in. 





Clear Cover to Tension Reinf., Cc = 

in. 





Depth to Compression Reinf., d' = 

in. 





Compression Reinforcing, A's = 

in.^2 





Working Stress Moment, Ma = 

ftkips 





Ultimate Design Moment, Mu = 

ftkips 





Ultimate Design Shear, Vu = 

kips 





Total Stirrup Area, Av(stirrup) = 

in.^2 





Tie/Stirrup Spacing, s2 = 

in. 















Results: 




















Crack Control (Distribution of Reinf.): 

b1 = 




?? Per ACI 31805 Code: 

c = 

in. 


Es = 

ksi 

a = 

in. 


Ec = 

ksi 

rb =?? 




n = 

n = Es/Ec 

r(prov) =?? 




fs = 

ksi 

r(min) =?? 




fs(used) = 

ksi 

As(min) = 




s1(max) = 


r(temp) =?? 

(total for section) 





As(temp) = 




?? Per ACI 31895 Code: 

r(max) =?? 




dc = 

in. 

As(max) = 



z = 

k/in. 

f 's = 




z(allow) = 


fMn = 




















Moment of Inertia for Deflection: 

fVc = 



fr = 

ksi 

fVs = 

kips 


kd = 

in. 

fVn = fVc+fVs = 




Ig = 

in.^4 

fVs(max) = 




Mcr = 

ftk 

Av(prov) = 

in.^2?? = Av(stirrup) 

Icr = 

in.^4 

Av(req'd) = 




Ie = 

in.^4?? (for deflection) 

Av(min) = 








s2(max) = 


































c = 

in. 







a = 

in. 







r =?? 









As = 

in.^2 







(4/3)*As = 

in.^2 







f 's = 

ksi 







A's = 

in.^2 



































