Moment Capacity Check form (Mat Foundation)

Used to check the capacity of existing mat slab. This form is used to to define reinforcement layout and program calculates moment capacity of the slab based on slab thickness, covers, reinforcement layout etc. You can plot capacity diagram, actual moment diagram and then compare those two diagrams and plot failure (or unity check) diagram. If at any portion of the slab, actual moment is more than the moment capacity, program will identify that portion with red color and plot failure diagram as shown below.

Opens when Mat Foundation Job > Mat slab Analysis/ design options > Moment Capacity Check is selected.

Setting	Description
Grades: Fy	Specify the yield strength of steel reinforcing bars (f_y), in the selected units.
Grades: Fc	Specify the ultimate strength of the concrete (f'_c), in the selected units.
Top Cover	Specify a concrete clear cover distance to be used for the top-most layer of mat reinforcement, in the selected units.
Bottom Cover	Specify a concrete clear cover distance to be used for the bottom-most layer of mat reinforcement, in the selected units.
Bar Size	Specify a reinforcing bar size to use for the capacity check.
Spacing	Specify a reinforcing bar center-to-center spacing, in the selected units.
Choose Slab Face	This check must be performed for one slab face at a time. So, for all four faces the check should be performed for four times.
Plot Capacity Diagram	A two-dimensional Moment Capacity graph is displayed over the surface of the mat. The legend indicates values of moment capacity by color.
Plot Moment Diagram	Moment Capacity diagram plot for Longitudinal Top, actual moment diagram plot for Longitudinal Top
Plot Failure Diagram	Displays the graphical results of a unity check, where green indicates OK (passes check) and red indicates No Good (fails check).