problem description title="Beam Sample Problem with Loadcases" nodes=3 elements=2 analysis parameters nodes=[1] dofs=[Ty] load cases f100 node-forces=(1, point100) f200 node-forces=(1, point200) f300 node-forces=(1, point300) f400 node-forces=(1, point400) f500 node-forces=(1, point500) f600 node-forces=(1, point600) f700 node-forces=(1, point700) f800 node-forces=(1, point800) f900 node-forces=(1, point900) f1000 node-forces=(1, point1000) nodes 1 x=0 y=0 z=0 constraint=free 2 x=240 y=0 z=0 constraint=roller 3 x=480 y=0 z=0 constraint=fixed forces point100 Fy=-100 point200 Fy=-200 point300 Fy=-300 point400 Fy=-400 point500 Fy=-500 point600 Fy=-600 point700 Fy=-700 point800 Fy=-800 point900 Fy=-900 point1000 Fy=-1000 beam elements 1 nodes=[1,2] material=steel 2 nodes=[2,3] material properties steel E=30e6 A=10 Ix=100 constraints fixed Tx=c Ty=c Rz=c free Tx=u Ty=u Rz=u roller Tx=u Ty=c Rz=u end