Verification of rectangular RC cross-section under M, V
Verification of rectangular RC cross-section under M, V
The cross-section is rectangular, reinforced on one side and loaded by the bending moment Mu.
The permissible moment for a given area of reinforcements As reads:
The program further checks whether the location of neutral axis x is less than the limit location of neutral axis xmax given by:
The computed degree of reinforcement is checked using the following expressions:
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where: |
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| - for fy = 460 N/mm2 | |
| - for fy = 250 N/mm2 | |
Shear
First, the program computes the ultimate shear strength of concrete Vc.
where:
The νc values are for fcu above 25 N/mm2 multiplied by (fcu / 25)1/3
If the ultimate shear strength of concrete is exceeded, the ultimate shear strength Vmax is checked.
Next, the necessary reinforcement area is given by:
where:
