Why do the moments for a BEAM189 model with SECOFFSET seem wrong?

The redundant axial constraints prevent the beam from compressing or elongating. For a beam with an offset, this prevents rotation, and even though the beam is simply supported, the redundant constraints allow large end moments to develop. You may notice in the results that the SDIR value in the beam is, for example, around 12,000 psi. The eccentricity of that 25,000-lb axial force from the neutral axis produces an end moment that reduce the moment at the applied load.

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