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  1. bbagar

    Simple horizontal curve

    Here is a question about simple horizontal curves: To calculate PC Sta, subtract T from PI Sta, then add L to PC Sta to get PT Sta. My question is, isn't stationing based on the roadway, that is, on the curve? If this is true, how can you subtract T from PI Sta to get PC Sta? The reason I...
  2. bbagar

    Simple Horizontal Curves

    Here is a question about simple horizontal curves: To calculate PC Sta, subtract T from PI Sta, then add L to PC Sta to get PT Sta. My question is, isn't stationing based on the roadway, that is, on the curve? If this is true, how can you subtract T from PI Sta to get PC Sta? The reason I...
  3. bbagar

    Curve length

    Here is a question about simple horizontal curves: aas1, you are saying that "Find T by subtracting the station of PT from station of PI." which is something that I see in every surveying book. What they do is, they subtract T from PI Sta to get PC Sta. Then they add L to PC Sta to...
  4. bbagar

    Sheet Pile Wall Axial Loads

    Hello: I am designing a steel sheet pile retaining wall with a 12" concrete facing on the front face attached via shear studs. I also have a concrete shoulder/barrier shape sitting on the embankment/facing, and these are introduce axial loads and eccentricity. What formula do you think I...
  5. bbagar

    Axial Loads on Sheet Pile Retaining Wall

    Hello: I am designing a steel sheet pile retaining wall with a 12" concrete facing on the front face attached via shear studs. I also have a concrete shoulder/barrier shape sitting on the embankment/facing, and these are introduce axial loads and eccentricity. What formula do you think I...
  6. bbagar

    Composite section design - effective flange width

    pylko:Thanks for your reply. The overhang is only on one side of the girder. You are right about AASHTO, it is sometimes fuzzy about things, especially on this one. It does not say anything about not using the overhang. I guess they only assume two conditions: a.The deck is continuous on...
  7. bbagar

    Composite section design - effective flange width

    Hello I am trying to design a composite girder for a bridge using AASHTO. I have a situation where I need to determine the effective flange width for the following situation: The fascia girder of the bridge is the girder in question, which is supporting the beams under the turn lanes for a...
  8. bbagar

    exothermic welds

    What is an exothermic weld and in what cases one might consider specifying one? Thanks

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