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




































