The M-N interaction curve illustrates the relationship between axial force (N) and bending moment (M) in a structural member, such as a column or a beam. This curve is pivotal in determining the capacity and behavior of a structural member under the combined loading conditions. The M-N interaction curve typically depicts the limits of a structure’s strength, highlighting the trade-off between axial force and bending moment.
MN interaction curve for a rectangular RC section
Updated: Mar 2
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