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  • Users: XR250
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  1. XR250

    Vibration of WF Beam Girders Supporting Steel Joists for Banquet Hall

    I have worked on two collapsed wood framed floors - both a Frat Houses.
  2. XR250

    Beam Reinforcement Calculation

    I am going to go back to my previous argument. If the moment of inertia of the combined section is the same as the sum of the inertias of the individual elements, how can there be any horizontal shear between them?
  3. XR250

    Beam Reinforcement Calculation

    That does not make sense to me. You may want to add welds at the ends of the plates to transfer the load back out into the I-beam web (can't tell if they exist or not).
  4. XR250

    Vibration of WF Beam Girders Supporting Steel Joists for Banquet Hall

    What does that mean though? It turns into the Tacoma Narrows bridge or a couple of Brads or Karens get a bit freaked out about the movement? I imagine this is only an issue for very specific dance situations (maybe Raves)?
  5. XR250

    Digital Seal and Signature

    You don't even need to keep good records. If you emailed the drawings to the customer, the proof would be in your sent box.
  6. XR250

    Digital Seal and Signature

    Exactly. The whole process is dumb. I think we need to follow the money. My guess is the 3rd party verification folks petitioned the AHJ's to adopt these rules. Maybe they held a free seminar.
  7. XR250

    Beam Reinforcement Calculation

    Blast from the past. I used the 1979 version of this in College. Probably 1st edition back then!
  8. XR250

    Vibration of WF Beam Girders Supporting Steel Joists for Banquet Hall

    Maybe the owner would be willing to let it go until they actually get a complaint.
  9. XR250

    Anchoring scissor car hoist/lift

    Nevermind. Not for the average user. SafeSet System with Hollow Drill Bit: When using certain Hilti adhesive anchors, particularly in masonry, the Hilti SafeSet™ system can eliminate the need for brushing. This method involves using a hollow drill bit and a vacuum to remove dust during...
  10. XR250

    Anchoring scissor car hoist/lift

    Doesn't Hilti have one now that needs no brushing?
  11. XR250

    Anchoring scissor car hoist/lift

    I'd be using epoxy as it will be more tolerant of a 4" slab install. When you drill the hole in the slab, the bottom can spall out - which can be a problem for other types of anchors in the thin substrate. Maybe switch to rotation mode in your drill once you get near the bottom.. Sometimes the...
  12. XR250

    Anchoring scissor car hoist/lift

    I did not realize scissors lifts required anchoring. Given that manufacturers of two post lifts somehow allow you to anchor them to a 4 inch slabs with 3/4"Ø wedge anchors, I imagine anything you do will be fine. I doubt any anchors are actually rated for 4" of concrete - other than small...
  13. XR250

    bARN WALL GIRT DEFLECTION

    So you have 2x6 flatwise @ 1'-9" O.C. spanning 8 ft with 4 ft. of salt backfill? I don't think I would "let that ride"
  14. XR250

    Shed Dormer on House w/ Exist Gable Dormer

    This is my typical detail sans ponywall. Same idea though.
  15. XR250

    Shed Dormer on House w/ Exist Gable Dormer

    Ugh, are they gonna be able to get the ridge up thru the stairs?
  16. XR250

    Shed Dormer on House w/ Exist Gable Dormer

    Might be easier to shore up the roof, cut out the ridge and drop the new ridge in with a crane.
  17. XR250

    Shed Dormer on House w/ Exist Gable Dormer

    1) Use structural screws instead of bolts 2) They can probably cut a hole in the gable end and fish it up that way.
  18. XR250

    Slab on grade on High Density Foam

    I believe the foam PSI rating is at a particular deflection. So your foam has it own modulus - which is likely to be less than the sub grade.
  19. XR250

    Nissan VC engine

    Seems like it is bearing problems - just like everyone else. Sure that engine is complicated AF and does not seem to offer any real world benefits. I don't understand why Nissan would bring this beast to production.

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