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  1. Serhiy

    Using Jack Stud for Resisting Wind Loads

    I'm just wondering how many of you would agree to and use jack stud for resisting wind loads acting on o/h door (in my example). Lintel is located right under the top plate. Let's say by the design I need 3 king studs to resist my wind forces and one jack stud to support lintel. Since my jack...
  2. Serhiy

    Tension stresses at footing-soil interface

    What formulas or what approach you would then normally use in this situation?
  3. Serhiy

    Tension stresses at footing-soil interface

    UcfSE, when you say I need to use different equation, do you mean I need to use different section modulus to calculate my stresses below the footing? If yes, would this new section modulus be the section modulus of the portion of the footing which is in compression? If yes, would my neutral axis...
  4. Serhiy

    Ties for flexural steel in RC beams and walls

    That's crazy but you are right, it was in Fariboz's class. If your name is Jarred (or any other spelling variations) I remember you. We should meet for a coffee sometimes.
  5. Serhiy

    Ties for flexural steel in RC beams and walls

    I totally missed the fact that my compression zone is only about 3/8" so my reinforcement is in tension - thanks guys. To close off the topic, would you consider tying the top reinforcement (which is not considered in calcs) in case it ended up being in compression be it in a beam or wall? If...
  6. Serhiy

    Ties for flexural steel in RC beams and walls

    Like I said before one layer of my flexural reinforcement will work in compression because I need to design for both mutually exclusive cases: manure pressing on wall from the inside and earth pressing on the wall from outside. It ended up being same reinforcement on both faces. My concern is...
  7. Serhiy

    Ties for flexural steel in RC beams and walls

    Good day. I'm designing a manure pit wall and it mostly acts as a flexural member resisting lateral loads from manure and soil. it spans vertically as it is supported at the top. The wall is 8" thick and I have reinforcement on both faces due to stress reversal. My question is, do I need to tie...
  8. Serhiy

    Tension stresses at footing-soil interface

    That's the problem. For example, for most of my load cases footing size 8'x8' works fine but for some of the load cases with large lateral force I get negative stresses on part of the footing and in order for me to eliminate them I have to increase footing width to 11'. My question was is...
  9. Serhiy

    Tension stresses at footing-soil interface

    Thanks. As per aeoliantexan, I will try to reduce the width of the footing (I assume it would be term d in the equation S=bd^2/6 - please advise if that's not the case) and see if it helps. Lowering the footings is not an option - client wants them pretty much on the surface - I even have to...
  10. Serhiy

    Tension stresses at footing-soil interface

    My negative meaning zero compression stress as per sketch below
  11. Serhiy

    Tension stresses at footing-soil interface

    Good day, I'm designing a spread footing foundation for pre-eng steel building and some lateral load cases drive the dimensions of my pads up because I'm trying to avoid negative stresses at footing-soil interface. I do it only because most of the related literature tells so. One thing I'm not...
  12. Serhiy

    Continuous Lateral Support force for column??

    Good day, I'm looking to find out how to calculate force acting on continuous lateral support of the column against buckling due to axial load acting on a column. Any help is appreciated. Thanks
  13. Serhiy

    6ft foundation wall on piles

    Thanks for reply, HotRod10. As I understood you are suggesting to analyze/design wall as spanning horizontally between piles (y direction as per my sketch) and then design vertical strips extending straight up from piles as cantilever beams that would bring load and moment to piles. Please see...
  14. Serhiy

    6ft foundation wall on piles

    Good day. I'm going to design a building with 6ft cantilevered foundation wall supported by cast in place piles. Foundation wall will support wood studwall. Loads are not going to be huge (building is 40ft wide). I'm wondering how to approach wall and wall-to-pile connection design. I assume...

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