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  • Users: JAE
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  1. JAE

    New foundation encroaching on existing

    I'd suggest finding a way to leap your new grade wall over the column/pile...terminating the shallow footings on either side of the pile cap and spanning across. I'd also consider enlarging the spread footings on either side of the pile cap to ensure no settlement there....pile caps may have...
  2. JAE

    Temporary Plate to Hold Anchor weight

    Are you asking what thickness to use? Or asking how would we analyze it as Eng16080 just did above? If the former - please go hire an engineer. If the latter: I'd use FEA analysis and vary the plate thickness until my von Mises stress was below the yield stress.
  3. JAE

    ASCE 7-16 Wind Loads

    I'd use the 28.3.5 provisions with monoslope roof and "obstructed flow".
  4. JAE

    ASCE 7-22 Snow Drift Density

    Similar post: https://www.eng-tips.com/threads/asce-7-22-drift-guidelines-are-unconservative.521741/#post-9012850 Some commentary on 7-22 snow loads: https://www.structuremag.org/article/snow-and-rain-loads-in-asce-7-22/ I saw some mention of an error in 7-22 snow provisions but can't find...
  5. JAE

    A Conceptual Modification to the Continuing Education Requirements

    Yes and those 8" disks were indeed floppy.
  6. JAE

    A Conceptual Modification to the Continuing Education Requirements

    Ron247 - it might have been 8". But I swear that northern pike I caught at my lake last week was 34" long....maybe 37.
  7. JAE

    Existing metal deck supporting concrete

    Don't think this matches either but take a peek: https://www.cordeck.com/wp-content/uploads/2020/09/HH-Robertson-Aftermarket-Metal-Deck-Information.pdf
  8. JAE

    Valid Pin Boundary Condition?

    Don't forget that the column base here rests on a footing which rests on soil that deforms under stress (i.e. moment from above). So as rb1957 states there will be "some moment" as the true response of your structure is always somewhere between pinned and fixed. As others have noted here it's...
  9. JAE

    Roof Frame adjacent to a wall on one side half its height (Open or Partially Open)

    Typically we don't count on adjacent structures to shield our structure from wind. This assumes that the adjacent structure reduces the wind load However, if the adjacent structure makes things worse (obstructed flow under an open roof) then I'd be inclined to check the structure both ways...
  10. JAE

    A Conceptual Modification to the Continuing Education Requirements

    I used to work with a Wang 2200 computer with a hard drive that I swear used 10" x 10" truly floppy disks.
  11. JAE

    A Conceptual Modification to the Continuing Education Requirements

    100% agree. This is where I'm at 0% agree. The university - and follow on seminars don't get you what you need to do your job. The expectation that you should not feel uncomfortable not knowing something in the true industry - like the existence of the NEC for example - is unwise. Of course...
  12. JAE

    A Conceptual Modification to the Continuing Education Requirements

    Ron I'm not sure I agree with you here. Engineering programs in college have not traditionally thought of themselves as "trade schools" that push out graduates ready to be producing engineers who rely on the published codes and standards. Maybe current students and some professors think so but...
  13. JAE

    Thin stair concrete design

    The treads may be 50 mm (2") but the landing looks a bit thicker doesn't it?
  14. JAE

    Modular Block Wall With Geogrid Into Bedrock

    Under normal circumstances, you are anchoring the geogrid with earth that "grabs" it everywhere. If you pin it to rock at a discreet point you would be potentially introducing higher, concentrated forces on single points in the geogrid, which would result in local tears or other failures. I'd...
  15. JAE

    Deck & gabion wall foundation on helical piers & frost heave

    FIrst and most sure way to avoid the heave but if you have a water table I understand. Usually do this when I have it near/under a heated building. Outdoors might be iffy as you are relying on the shallow earth to provide enough heat from below to avoid freezing. Might be OK but I'd want to...
  16. JAE

    Anchorage of Positive Moment Reinforcement

    Not technically by the language of the clause. Doubling the bars required and halving the embedment conditions doesn't usually work out.
  17. JAE

    Attachment to Existing Terra Cotta

    I'd be hesitant to depend on Terra Cotta for anything structural - just me being a big chicken. I understand it has moderate compressive strength but for shear and tension it's probably closer to dried snot.
  18. JAE

    Roof Collapse in Madison Wisconsin

    This didn't look like a roof beam-to-column failure but rather a roof joist collapse of some sort - looks like a portion of the middle of a bay let go - perhaps a flexural failure at midspan.
  19. JAE

    A Conceptual Modification to the Continuing Education Requirements

    As I got older the main thing I gained from CE was seminars and talks on updated codes and standards. Those change all the time and it's good to hear what new (and improved?) features are appearing in ACI, AISC, etc. That type of info is good at any age. Well yes load paths are thankfully...
  20. JAE

    Understanding Concrete Framing Slope Annotation

    If it's an error on the plans it appears to be all over that floor framing plan. All the drains are at 6 1/4" with nearby 5 1/4" elevations.

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