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3D vs 1D analysis

3D vs 1D analysis

3D vs 1D analysis

(OP)
Hi ,

   I am trying to compare the results of a 3D analysis to 1D analysis for a 3 span continuous bridge (60'-75'-60'). I have placed a point load of 1kips on the centre of the intermediate span of the 1D model.. while i have a wheel loads (0.5 +0.5)kips on the centre of the intermediate span of the 3D FE model.
    
  1) I am unable to get the same moment.. infact the moment in the 1D model is twice that from 3D model...
  
any suggestions..
Uncracked

RE: 3D vs 1D analysis

Your total (sum of all moments in all stingers)  MY moment from the 3-D model should be almost equall to the moment from 1-D model, or check your input data.

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