BetaBetaAdds a beam from start to end in a storey, its section centred on the line between them.
The section's Y points up, so an I section stands upright on a level beam; rotation turns it
about the beam's axis. The section is chosen by profile as for columns.
The model, the storey, the two ends and the section
A new model with the beam
Beams: sections swept straight between two points of a storey, each a rectangle, a circle or an I section centred on the line between them.