What is the best way to model a double channel but top to bottom, i.e. top flange of one channel mating the bottom flange of another channel.
Options I have though of:
1 - Model as two separate beams with nodes linked by master/slave node specification.
2 - Model as collinear beams but use 'offset' spec each channel to offset by half channel height. This leads to collinear beam warnings but would model be accurate?
3 - Create bespoke section using user table.
Thanks,
James