Verification of rectangular RC cross-section under N, M, V
Verification of rectangular RC cross-section under N, M, V
The cross-section is rectangular, unilaterally reinforced and loaded by the bending moment and normal compression force. The program verifies a reinforced concrete section using the method of limit deformation (Art. 5.2.8). The maximum allowable strain of concrete in compression is 0,0025. Compression reinforcement is not taken into account.
The computed degree of reinforcement is checked using the following expressions (Art. 3.1.4.3, Art. 3.1.4.6):
Shear
First, the program computes the ultimate shear strength of concrete Qbu (Art. 5.3.3, Appendix 9).
where: | for: | | is: κq = 1,25 |
for: | | je κq = 1,50 | |
for: | | je κq = 1,60 |
If the ultimate shear strength of concrete is exceeded, the ultimate shear strength Qmax is checked (Art. 5.3.2.1).
Next, the necessary reinforcement area is given by (Art. 5.3.4):
where (Art. 5.3.5):
The magnitude of c is bounded by the following expression:
