a simple probem about section and element?

[cjwxslw]

Hi,
now , a simple example about a cantilever beam , applied vertical concentrated load at the beam end in 2D, i want to consider the flexure only at section, after debug, no results can't be gained, others commands were debugged sucessfully, i think the problem exsist at definition of section and element , the pertinent commands as follows:

uniaxialMaterial ElasticPP $BeamMatTagFlex $EIzBeam $epsyP;
section Uniaxial $SectionBeam $BeamMatTagFlex Mz;
set numIntgrPts 5;
element dispBeamColumn 1 1 2 $numIntgrPts $SectionBeam $BeamTransfTag;

is right? can you give some advice?
thank you!
chen

[vesna]

Chen,

To define dispBeamColumn element the section that you assign to it needs to have defined at least axial force-deformation relationship and moment-curvature relationship.