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  • Users: dfranks
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  1. dfranks

    Loads due to material dumping and handling in a salt barn

    We are trying to design a 10ft freestanding wall that will retain salt for de-icing on the roadway. I feel it is prudent to consider the loads causes by material dumped against the wall from a truck. I also feel like I would be wise to consider the case where the loader operator pushes the...
  2. dfranks

    Waiting period for MSE walls

    I understand that in some states they allow MSE designs with a bearing pressure greater than the bearing capacity, IF the contract agrees to build the wall to a height where the pressure and capcity are equal and then wait 30 days. From what I understand the assumed capacity is then increased...
  3. dfranks

    Mobilized Soil Reaction in L-PIle

    I am NOT familiar with L-pile, but I have been shown a graph of "mobilized soil reaction vs. depth" for a large caisson. The soil reaction is in lb/in. Can someone explain to me in simple terms what this means? I am used to dealing with psi or psf, such as that caused by active earth...
  4. dfranks

    Transmission Tower Foundation behind Soldier Pile Wall

    I am working on a soldier pile wall design that will retain a large transmission tower foundation. The foundation is 17 feet deep and 7 feet wide. There is a 4400K-ft moment a the top of the shaft in the direction of my wall, as well as a 62K horizontal force. I have a basic understanding of...
  5. dfranks

    LRFD Gravity Wall Design

    Has anyone started working with the LRFD code to do simple gravity wall designs? In my work so far it appears that eccentricity checks and bearing capacity checks come out similar to previous design methodologies, but I am running into some issues with sliding. Is anyone else finding it...
  6. dfranks

    Is anyone still using the Simon Systems Program

    I am working on my first plate girder design and someone in my office told me to use a program called Simon Systems that was put out by the National Steel Bridge Association. I found the manual, but apparently our license has expired and I can't find any information about the software online...

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