model a suspension bridge in RM Bridge V8

Hi everybody.

I am trying a suspension bridge in RM Bridge V8 and I model main cable by cable element, but when I calculator seflweight of suspension bridge then it error Node support in node of main cable and I modeling node support have value 1e+10 in CMX, CMY, CMZ, and deflection is very large, So, I hope everybody help me can fix error and linking cable elements into a unified whole is a soft wire structure.

if can, everybody can give me a file RM Bridge to refer, please.

I hope reply to every body about my problem.

Thank you so much and good luck.