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Problems associated with modelling of abutment of bridges? What is the actual approach?

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I am trying to compare the vertical reaction I am getting in piles of an abutment of a 15m span railway bridge with manual calculation. I have modeled the abutment but the reaction I am getting is not representing the actual scenario. I am getting warnings where the statement being made by the software is "elements are between same joints", How can I fix this. Also I am getting negative reaction in the rear end piles and also a very high vertical reaction in the front piles which is a lot higher when I compare it with manual calculation. But, in another model which has been prepared by someone else. I am inputting the same braking force and vertical loads in the bearing but, I am getting low vertical reactions. I have attached my model which has a lot of problems named (abutment 1) and another model which is giving lower values for in terms of vertical load.(Please visit the site to view this file)


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