Modeling Cables in SAP
Modeling Cables in SAP
(OP)
I am looking to model traffic signal span wire structures using SAP2000 and am wondering what is the best way to model cable elements? I first attempted to model as frame elements and applied moment releases at the ends of members. This lead to errors at joints between members along the span.





RE: Modeling Cables in SAP
RE: Modeling Cables in SAP
RE: Modeling Cables in SAP
Another idea might be to insert a ton of hinges with low Mp's into the frame memebrs you are using. That way youll get alot of rotation along the memember and therefore alot of lateral deflection without losing any axial stiffness.
Hope some of these ideas help!
AR
RE: Modeling Cables in SAP
Anyway, bottom line is you need version 9.
RE: Modeling Cables in SAP
RE: Modeling Cables in SAP
RE: Modeling Cables in SAP
More information in the Analysis Reference Manual Chapter XXI "Geometric Nonlinearity".