Concrete Structures by Mehdi Setareh & Robert Darvas

Author:Mehdi Setareh & Robert Darvas
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

The forces acting on the section are:

Equilibrium of the forces acting on the section (Figure 5.25c) requires that:

Simplifying the above equation, we get:

which is a second order equation. Solving for c:

The stress in the compression steel (f s ′) is:

and the magnitude of the forces acting on the section is:

The small difference between C 1 + C 2 and T is due to round-off errors and is negligible. To calculate the nominal moment capacity , M n , we determine the moment of these forces about the tensile steel:

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