Inside File\Examples\Demo Examples & FAQ user will find the Frequently Asked Questions and Solutions section for RM Bridge Enterprise. There user can select the truss model as a reference entitled Modeler Link Segments & Truss Modeling. There will be the datasets to be imported and the .pdf description document about it. This example of modelling spatial truss structures in the Modeler part of RM Bridge shows how to use Link Segments and Nodes inside the Cross-Section definitions together with Segment as the base of modeling steel structural Elements. It is disponible in the link, as shown in the last screenshot below.   

     

Additional reference about Steel Design can be found at the link below.

communities.bentley.com/.../rm-bridge-steel-design---training-example

One specific simple suspension bridge model can be created by using the input from the link below:

communities.bentley.com/.../rm-bridge-suspension-bridge-modeling