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suspension bridge modelling

suspension bridge modelling

suspension bridge modelling

(OP)
i want to modelled suspension bridge, but the problem is that, if i use main cable & suspender ( cable section) mode shape not show corretly,add if i use main cable & suspender ( frame section) mode shape show corretly. what is the corret solution because cable have no bending moment but frame have bending moment.

RE: suspension bridge modelling

saebamu, have you evaluated the modal results when you based the modal case on the stiffness of a nonlinear P-Delta case? A nonlinear P-Delta case which includes selfweight, and perhaps some percentage of vehicle load? In a cable suspension bridge, consideration of P-Delta in the modal case could potentially make a significant difference.

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