The theoretical moment-curvature curves for specimens 3 and 4 had higher slopes

than the displacement curves approximately 25% and 8% respectively. The differential


curves were irregular and therefore their slopes could not be determined. It should be

noted that the slopes of the displacement curves for both specimens 3 and 4 were

changing at a higher rate than the slopes of the theoretical curves and therefore the

differences increased at loads close to peak. It was also evident that the theoretical curves


calculated significant post peak behavior for specimens 3 and 4 which was different than

the displacement curves that did not indicate any significant post peak behavior.


 250

 200

 150

 E 100
 -A- Displacement
 50 --- Theoretical
 Differential

 0
 0.0000 0.0005 0.0010 0.0015 0.0020 0.0025 0.0030
 Curvature (rad/in)


Figure 5-22. Moment-curvature curves for specimen 3

 250

 200

 150

 E 100
 I-8- Displacement
 50 -8- Theoretical
 Differential
 0
 0.0000 0.0005 0.0010 0.0015 0.0020 0.0025 0.0030
 Curvature (rad/in)


Figure 5-23. Moment-curvature curves for specimen 4