Ix
Moment of inertia with respect to global X-direction
Iz
Moment of inertia with respect to global Z-direction
d
Distance from extreme compression fiber to centroid of tension reinforcement
dv
Effective shear depth used in LRFD shear calculations
Mmax
Factored moment at critical section/checkpoints
Asb-prv
Provided steel area at bottom
Asb-eff
Effective steel area at bottom, after considering development length
Asb-req
Required steel area at bottom
Ast-prv
Provided steel area at top
Ast-eff
Effective steel area at top, after considering development length
Ast-req
Required steel area at top
fs-t
Cracking/fatigue stress at top
fs-b
Cracking/fatigue stress at bottom
Ratio fs-t
Ratio between cracking/fatigue stress at top and allowable stress
Ratio fs-b
Ratio between cracking/fatigue stress at bottom and allowable stress
Vu
Factored shear force at section
phi*Vc
Shear strength provided by concrete, having ϕ factored considered
Bo
Perimeter of critical section for two-way shear
Ao
Area within perimeter of critical section for two-way shear
Avg.d
Average distance from extreme compression fiber to centroid of tension reinforcement
Avg.dv
Average effective shear depth
Cap Design
Quantity
Number of steel bars used in design
Bar dist
Distance between center of steel bar to edge of cap
As total
Total steel area
From
Starting location of steel bar
To
Ending location of steel bar
Loc
Location of design section from start of current member
AbsLoc
Location of design section from left end of cap
Mmax
Maximum moment at design section
Mmin
Minimum moment at design section
Mn
Resisting moment, which has φ factor considered
Asb-req
Required bottom steel area
Asb-prv
Provided bottom steel area
Asb-eff
Effective bottom steel area, after considering development length
Ast-req
Required top steel area
Ast-prv
Provided top steel area
Ast-eff
Effective top steel area, after considering development length
Phi*Vc
Shear capacity of concrete section, which has φ factor considered
Phi*Tcr
Torsion capacity of concrete section, which has φ factor considered
Av/s
Required stirrup area per unit length
Alx Alt
Additional longitudinal steel due to shear and torsion (in addition to the provided steel)
Smax
Maximum stirrup spacing
fs-t
Cracking/fatigue stress at top
fs-b
Cracking/fatigue stress at bottom
Ratio fs-t
Ratio between cracking/fatigue stress at top and allowable stress
Ratio fs-b
Ratio between cracking/fatigue stress at bottom and allowable stress
*
Warning flag if code requirement is not satisfied
