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  1. StrucPatholgst

    When would a retaining wall footing be required?

    If the slab and "wall" were poured monolithically, and the whole thing has settled 2 inches at the outer edge, then you should be more concerned with a slide or how the whole bank was worked/graded/compacted, not the width of any footing. To me it sounds like it's rolling out, like a row of...
  2. StrucPatholgst

    Racked two story 1890 balloon frame

    No plans to unrack. Owner was given the option of stabilizing what he had, or gutting the interior/exterior and bringing the building back plumb. We were called in after he got a price for a tear down, and a price for gutting and re-plumbing. Block is zoned Light Industrial, but each of the...
  3. StrucPatholgst

    Racked two story 1890 balloon frame

    I didn't pose a question. Regarding your question, the home is 135 years old, leaning 6 inches to the left, and I don't have a PHD.
  4. StrucPatholgst

    Racked two story 1890 balloon frame

    The Scenario: Tiny 1890's balloon frame, narrow floor plan (11' wide, 32' deep) with a shallow 7 foot 'L' leg at the rear (so if I type the letter 'L', the street is at the top of the L). Racking damage (leaning to the side of the 'L' to the right), likely from the Great Atlantic hurricane in...
  5. StrucPatholgst

    Help with a residential framing issue

    This has 'bad outcome' written all over it.
  6. StrucPatholgst

    Subsidence and Foundation concerns

    You're going to get absolutely no where trying to get an opinion on this from the other side of the internet. This is not how the practice of structural engineering or structural assessments are conducted. You have to have an experienced structural engineer looking at everything: the building...
  7. StrucPatholgst

    Residential beam sizing for deflection

    Samey sames, jerseyshore. I'm in north jersey, and I wouldn't spec a product that didn't have an ESR report unless I was designing it myself, or it came with a calc package with a raised seal. I don't want that liability.
  8. StrucPatholgst

    Structural Engineer stamping Architectural Set

    New Jersey has a pretty clear law called the Professional Services Act, and it defines who can prepare and stamp what. In the case of using an architect's floor plan or elevation as the basis of a structural sketch or print, you can use the pertinent portions as long as you reference the...
  9. StrucPatholgst

    Intermittent Popping sounds in Roof Structure

    This is the time of year that the heat is cranked and the framing is drying out and contracting. Could be that the attic framing is adjusting to the contraction in the of the wood in the lower floors, which may have gotten wet from a recent leak (roof, plumbing, etc.).
  10. StrucPatholgst

    new lvl floor joists on existing wood stud wall...concrete strip footing needed?

    But why LVL's. Why not I-joists, or truss joists. 22 foot long LVLs are going to want to twist. Plus you'd probably need 11-7/8 LVLs, and they'd would still probably deflect a half inch under load.
  11. StrucPatholgst

    Please suggest some books containing common construction issues/challenges and their solutions.

    Tacking on to everyone's great posts, it's experience that gets you there. Although there are some good forensic structural engineering books out that can be handy with discrete issues. Couple points: 1. The site guys you mention are just handing off problems/liability to the nearest...
  12. StrucPatholgst

    Notching/drilling rafters

    You should get a structural engineer to look at that framing. From the little I can see, those horizontal ties are in tension and holding the walls in place. Removing them would be no bueno without installing a true ridge beam.
  13. StrucPatholgst

    Analyzing and code checking a pre-engineered metal building for new rooftop RTU loading

    I used to do analysis for solar array installations. While it's possible to reinforce a PEMB tapered beam, in my experience the cost for the work would instantly kick the PEMB install option into the red. I say "used to" because nowadays the solar companies don't want to pay much of anything...
  14. StrucPatholgst

    Basement Wall at Attached Garage

    The idea of backfilling a foundation before the fist floor framing is in place strikes me as pretty odd. It's good you talked them out of it. But it reminds me of the means and methods trap. In my area, contractors are all booked up, and property owners are starting to drag the bottom for...
  15. StrucPatholgst

    Acceptable Inward Bow in Basement Wall

    All good points, except the carbon strap thing. In my area the carbon strap guys have language in their warranties that void coverage if the block ever gets wet. That's a hard no for me. Also my quick rules of thumb are: 1. If it's cracked, it technically failed at its job but still may be...
  16. StrucPatholgst

    Basement Wall at Attached Garage

    Why is the footing so big. 8 feet wide?
  17. StrucPatholgst

    Existing Retaining Wall

    I agree with that. About 20 years ago I was a part of a project at an industrial site where an older sulfuric acid dryer was to be replaced with a newer larger one. The new tower was 40 tons heavier than the older one when fully operational. They wanted to re-use the existing elevated...
  18. StrucPatholgst

    Existing Retaining Wall

    I am a firm believer in not trusting an older wall to bear additional loads. And I would never stake my reputation on adding 4 feet of soils and the surcharge of a new building on someone else's wall. If it were me, I would design what is actually needed, and try to adapt that to existing...
  19. StrucPatholgst

    Stick framed roof without ridge beams, Non Trusses

    Seems legit to me. Had there been cathedral ceilings in there, none of that would have worked.
  20. StrucPatholgst

    Pre-engineered metal building (c 1992) with steel bar joist roof + girders?

    Would a PEMB manufacturer have their own proprietary add-load joists? Those look like add-load joists, straight from a joist factory.

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