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  1. lunera

    PE License Jurisdiction

    I saw some variations of this question, regarding engineers working from outside the U.S. and engineers working on federal projects. But, what if the engineering work is done by the staff of a private owner with P.E.s licensed in the states in which the work is, but not licensed within the state...
  2. lunera

    Design of variable web depth bridge girder (using AASHTO 6.10.1.4)

    Teguci - Thank you for your reply. What you've explained makes sense. Do you have an example or a resource that I can refer to go over this in more detail?
  3. lunera

    Design of variable web depth bridge girder (using AASHTO 6.10.1.4)

    I'm designing a deck plate girder for a railroad. We are keeping the existing piers and so I am minimizing the pier work by decreasing the depth of the girder at the supports. I've referred to AASHTO 6.10.1.4 "Variable Web Depth Members" for guidance and have calculated the Pv, Ph, fn that it...
  4. lunera

    Load distribution of masonry plate

    I am trying to find the load distribution of the masonry plate of a spherical bronze bearing in SAP2000. I used the 'solid model-block' template to create a solid model of the 36"x36"x3" masonry plate. I changed the restraints along the bottom of the plate to rollers and applied a vertical...
  5. lunera

    Finite element analysis of masonry plate for bridge bearing

    I am trying to find the load distribution of the masonry plate of a spherical bronze bearing. I used the 'solid model-block' template to create a solid model of the 36"x36"x3" masonry plate. I changed the restraints along the bottom of the plate to rollers and applied a vertical 'surface...
  6. lunera

    Construction cost library

    Thank you for that. I did look up FIEDBC and I'm lucky that I can read Spanish, so I'm gathering that it is a software. I am looking to complete this with an Excel Spreadsheet/workbook. As for why I need this estimating information, we need it in order to wisely predict which projects we will...
  7. lunera

    Construction cost library

    I need to start a construction cost "database" for my group to do the estimations for our 2010 projects. Does anybody have any tips on how to set up a cost database that is based on past projects? I can't use a database like RS Means because this is for the railroad, and it doesn't really give...
  8. lunera

    Strip Load surcharge on Sheet pile wall with sloped backfill

    Yes, you are correct, it should be 2:1, thanks for pointing that out. Although I do not understand why slopes are referred to in that way, its seems that intuitively it would be rise:run, but the standard practice is run:rise?
  9. lunera

    Strip Load surcharge on Sheet pile wall with sloped backfill

    The wall is about 23 feet from the centerline of the track, and by following the very last post in the before mentioned thread (thread255-150849: Surcharge Pressure on Retaining Walls) I calculated that the surcharge clear distance is 20.6 feet, which would then mean that I could disregard the...
  10. lunera

    Strip Load surcharge on Sheet pile wall with sloped backfill

    I am doing analysis on a sheet pile headwall for a CMP culvert under a railroad. I have been looking but have been able to figure out how to determine the lateral pressure from a strip load surcharge when the backfill has a 1:2 slope. I orginally just used the Bousinesq formula, but because of...
  11. lunera

    Strip Load surcharge on Sheet pile wall with sloped backfill

    I am doing analysis on a sheet pile headwall for a CMP culvert under a railroad. I have been looking but have been able to figure out how to determine the lateral pressure from a strip load surcharge when the backfill has a 1:2 slope. I orginally just used the Bousinesq formula, but because of...
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