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  1. Once20036

    What does a joist filler look like?

    agreed, a short length of rod welded between the two chord angles. I`m accustomed to seeing them midspan between panel points, typically just a couple near the center. Here's a couple at the top chord:
  2. Once20036

    support condition in model (urgent)

    @phamENG - i didn't see anything in there about concrete. If that's the conversation, I agree you could do something if you predrill the steel, shoot something through the hole, into a concrete deck. If nothing else, it wouldn't fall under its own self weight.
  3. Once20036

    support condition in model (urgent)

    I don't think anyone has said it yet, but you cannot shoot a pin through an angle into the deck. The pin is shot from above, through the deck, into the thicker steel element. The deck gets sandwiched between the head of the pin and the angle. If you shoot the pin from below, it will lose all of...
  4. Once20036

    Sloped Fall Protection Beam

    How is the fall protection attached to the sloped beam? I suspect that if its on wheels/on a trolley, it will roll down the length of the beam. If it rolls before the fall protection event, could it tug on the lanyard and knock someone off balance? Or can you find a trolley with a brake that can...
  5. Once20036

    Ethics Double Check

    I`ve always heard that the question isn't about whether or not theres a conflict of interest, but rather whether or not there's the appearance of a conflict of interest. If I was the owner, I`d be looking to hire my own guy. If I was a lawyer, I`d look to have all your results thrown out (thanks...
  6. Once20036

    ASCE 7-22 Windward Drift

    I don't want to side track the conversation, but which FM document is referring to ASCE 7-22? The FM wind document (FM1-54) largely plagiarizes ASCE 7-05. Interesting that their snow document would be SO up to date.
  7. Once20036

    When would a retaining wall footing be required?

    In my experience, geotech reports require that wall footings need to be of a minimum width (2' typical). If you don't have a wall footing down there, you don't get to consider "bearing pressure" at the bottom of the 10" wall.
  8. Once20036

    Seismic Load Distribution in Buildings with Flexible Diaphragms and Asymmetrical Wall Loads

    I think of these diaphragms as being a simple span beam. Distributed loads are based on tributary area, but any point loads will be distributed to the lateral supports based on their specific locations.
  9. Once20036

    Car Garage Live Load for Slab on Grade

    Personally, I`m not a fan of discussing slabs on grade in terms of a PSF rating. If its an huge, uniform load over a huge uniform area, the bearing capacity is theoretically the bearing capacity. For a warehouse style analysis, the capacity is as much about the unloaded area between the loaded...
  10. Once20036

    Lateral Loading for Fall Arrest Gantry Beams

    There are lots of threads on fall protection. Here's a recent one asking the same thing. https://www.eng-tips.com/threads/fall-peotection.523063/ In my opinion, fall protection loads do not need to be applied in any direction. In this case, it is physically impossible for a worker to fall in a...
  11. Once20036

    Basement Retaining Wall Cost Expectations

    Sounds like you should expect to pay $3500.
  12. Once20036

    How much time is needed to learn to build a structural model for a steel structure warehouse by RAM?

    Maybe I`m a little old fashioned, but I prefer a written tutorial, more on the textbook side of things. That way I can go through it step by step, and i can't zone out while someone on youtube "pushes buttons for me" It's not well advertised, but RAM SS gives you a PDF tutorial. It's saved on...
  13. Once20036

    Continuous Reinforcing at Control Joints - Slabs on Ground

    For us, it depends on the reinforcing. I`m OK with snipping 50% of the members in a wire mesh/fabric, but would be more accustomed to stopping rebar and using a dowel basket.
  14. Once20036

    Minimum surface for welds

    I believe that the thickness + 1/16" is only applicable if you`re welding to the edge of a plate. In this case, the weld would be to the face of the base plate. I`d refer to AISC 15th p 8-20. A 3/16" weld needs a 7/16" shelf.
  15. Once20036

    HSS TO HSS KNEE CONNECTION WELDS

    @bugbus - i`m not aware of any AISC/AWS standards for a butt weld, as you`d have between the sides. My understanding is that there's no way to define/consistently measure the throat of the weld, and therefore, the strength can't be calculated.
  16. Once20036

    HSS TO HSS KNEE CONNECTION WELDS

    In your top condition, considering the rolled corners of an HSS, you`d be using flare groove welds. For your bottom condition, you`d have a fillet on the bottom, a butt weld (which is a non structural weld) on the sides. I`m not sure what I`d call the top. I wouldn't expect much...
  17. Once20036

    AutoCAD: How do I stop OSnap defaults from overriding @(relative x, y) coordinates?

    Not sure if I fully understand the question, but I`d hit f3 to temporarily turn off osnap, or type "non" to temporarily turn off osnap settings for that 1 command.
  18. Once20036

    Metal Buildings - Independent Analysis

    Ram-Elements can also analyze tapered members.
  19. Once20036

    Fall Peotection

    Thanks Bulb - you`re correct that its 3100# and not 3600# as I originally typed. I edited my post. I`m not sure that I follow your interpretation of the directionality. Did you highlight "EVERY DIRECTION" to mean that you think a load applied straight up would be appropriate? I consider the...
  20. Once20036

    Fall Peotection

    Recently a fall protection load was added to IBC. Its listed as a 3600# 3100# live load, which works out to 5,000# factored load. I generally don't consider these to be "any direction" but rather, any direction where a fall load could occur. For a typical rooftop application, that likely means...

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