Show Moment Curvature Curve

Additional forms:  Moment Curvature Curve Details for {Curve Number}, Stress/Strain Contours for {Curve Number}

Use the Display menu > Show Moment Curvature Curve command or button to display the Moment Curvature Curve form. Use the form to display moment curvature curves for concrete sections that have reinforcing. If the section is not concrete and does not have reinforcement, this command will not be available.

When the mouse pointer is moved over the plot, a display box below the Curvature plot area shows the value of the moment curvature curve at that point. The curvature is listed first followed by the moment.

When the mouse pointer is moved over the plot, the values for Concrete Strain, Steel Strain, and Neutral Axis are shown for that point in display boxes below the plot.

 

The angle also dictates the direction of the moment considered. When the angle is 0 degrees, the direction of moment is in the positive direction of the local 3-axis. Use the right hand rule to get a sense of the direction of this moment. When the angle is 180 degrees, the direction of moment is in the negative direction of the local 3-axis. The above figures illustrate the sense of the moment when the angle is 0 and 45 degrees.

As an example, if the angle specified were 225 degrees, the neutral axis would have the same orientation as that shown in the figure above, but the direction of the moment would be reversed as shown in the following figure.