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  1. shacked

    Drilled shear pin caisson

    Just a follow up on my Q, in case you are interested. I spoke with the engineering geologist and he said that the caissons should have 370kips of shear capacity, but not actually designed, as far as the embedment of the caisson, for this load. It makes sense, since in order to fully stabilize...
  2. shacked

    Drilled shear pin caisson

    I am working on a residential custom home and at the backyard there is a new 6ft retaining wall supporting a descending slope. The soils report provides all the design values that I need, but to provide slope stability they are requiring that a row of drilled shear pin caissons with shear...
  3. shacked

    Sole proprietor as engineer or business man.

    A few times since I have started my business (residential structural) as a sole proprietorship, as I have been speaking with clients they have said that I was a business man. At the time I didn't put much thought into that label, until recently. My response should have been NO! I am an...
  4. shacked

    Would you sign off on this detail?

    By the way, this detail was drawn by the homeowner. I'm surprised that no one picked up on the note that all rebar will be lapped 12inch minimum. :ROFLMAO: I don't need the work so I think I am going to pass on this one. Just too many small and medium sized items that will be a problem to...
  5. shacked

    Retaining wall at property line with narrow clearance

    What kootk said. You could also use cast in place caissons cantilevering out of the competent soil as permanent shoring and span the wall between the caissons.
  6. shacked

    Would you sign off on this detail?

    I was contacted by a home owner that built some retaining walls under his existing house, basically deepened the existing crawlspace and turned it into a habitable area. After he went to the city and tried to get a permit, the city engineer said that he wants engineering calculations and details...
  7. shacked

    Concrete Curb Foundation Alteration

    :ROFLMAO:, I know it is only a light gauge metal garage, but no footing? Sometimes, in situations like this where the contractor obviously choose to do his own thing, they have to learn a lesson. I'd make em excavate on the exterior under the edge of the slab and pour a footing.
  8. shacked

    Shear wall design in small residential homes

    You need to justify removing that wall without increasing and potential lateral loading to the existing walls in the same direction as the existing wall to be removed. Not knowing anything about the existing roof and or ceiling framing I would also verify if the existing adjacent walls extend to...
  9. shacked

    Structural glass design without FEM

    Interesting topic. I am in the same boat, since I am a sole proprietor and the cost of FEM software is just too much to justify the purchase considering on how many times a year I would use it.
  10. shacked

    Cold Rolled HSS stair stringer Q's

    Thanks guys, your responses are pretty much what I expected...not in a bad way. I realize there are radius limitations based on the tube section as well as the shops bending process. I have a meeting set up with the fabricator this week so I suspect some of my questions may be answered then...
  11. shacked

    Cold Rolled HSS stair stringer Q's

    So, I reviewed the curved member design guide but the majority of the information is limited to either vertical or horizontal curved members and not spiral curved beams as in a stair stringer. Since this is a single stringer stair run used in residential I was hoping that I would be able to...
  12. shacked

    Cold Rolled HSS stair stringer Q's

    Awesome, thanks guys I appreciate the references.
  13. shacked

    Cold Rolled HSS stair stringer Q's

    I am designing a HSS beam used for a residential stair. It will be a single HSS stringer cold bent to an approximate 4ft inside radius and span from ground floor to 2nd floor. I have never designed a steel beam that is bent in 2 directions like this is, so I have a few questions. Are any of...
  14. shacked

    Need opinions about new balcony framing

    [rofl]Sorry lexpatrie, I love acronyms. 2x deck joist....Dj, Floor joist Fj.. Dblstud, this is one of the other methods that I had thought about as well. Good point about sistering deck joists and "when they rot" is correct, because they most likely will. Another question has come up about...
  15. shacked

    Need opinions about new balcony framing

    I posted something yesterday related to this topic, but I had not yet fully thought through all the issues. Here is what is going on Existing conditions: 2 story wood framed house with 2x12 fj that cantilever out 3ft and support the wall/roof load from above. Proposed condition: New...
  16. shacked

    Analysis of existing and new framing

    Haha, forget I asked....I had a major brain fart.
  17. shacked

    Analysis of existing and new framing

    beav-eng, I have already sketched it but I am not 100% sure about the reactions. I initially assumed that the reactions would be the fbd of the entire new & existing joist section with 3 rxn's. The beam is 18'-6" it supports roof, floor and balcony. 40psf LL & 60psf LL for balcony. A wood bm...
  18. shacked

    Analysis of existing and new framing

    I am doing a residential project where there is an existing 2 story house and they are adding a new front balcony. The existing floor joists cantilever 3.5ft and support the wall (roof) above. Since this isn't the best condition I am adding a steel beam under the wall above so that I can...
  19. shacked

    Patio cover cantilever column on top of retaining wall

    Just learned a new term...I had no idea what a plinth was until now. That makes sense...basically a square reinforced column that the steel column sits on and the masonry retaining wall extends through. Is this correct?
  20. shacked

    Patio cover cantilever column on top of retaining wall

    I am working on a small project and I would like to get opinions about my approach to a problem. Scope of work is a free standing patio cover roof (300sf) where 2 of the posts are supported on top of a new retaining wall. Since there are no walls for lateral resistance, and this is southern...

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