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  1. JoshPlumSE

    Gyp Board Shear Walls for Multi Story Apartment Building

    Ugh. I personally hate the idea of relying on Gyp board for lateral resistance. The only time I've seen this done is when someone had an existing structure and they wanted to justify why should be allowed to do a renovation even though the lateral system didn't calc out.... Heck, I believe the...
  2. JoshPlumSE

    California Dreaming No More

    I've been seeing a god amount about this recently.... I haven't really read much about it. But, I've seen headlines related to preventing the spread of bird flu. I'm not sure if it's exclusively in CA or not. FWIW, California has regulations that essentially require cage free hens if you want...
  3. JoshPlumSE

    California Dreaming No More

    Dik - What I'm getting at is the "alarmists" tend to blame everything on global warming without being able to cite any data to back up their opinions. This is intellectually poor reasoning. And, I personally expect more out of you. It's like when the DEI / social justice / neo-Marxist...
  4. JoshPlumSE

    California Dreaming No More

    This is one of the most passive aggressive things you've ever posted. All you give is silly platitudes about how anything and everything COULD be related to global warming. You probably don't understand CA weather at all. That's okay, I tried to explain how we had last winter was very wet...
  5. JoshPlumSE

    Bowing basement wall

    I would think this would be feasible.... with shear studs / dowels into the existing wall for connectivity. The biggest problem with this is how you're going to do the foundation for the new wall..... FWIW, I've learned a lot from this thread already. I didn't realize that the Carbon Fiber...
  6. JoshPlumSE

    California Dreaming No More

    I fail to understand how these wild fires have any relationship to Global Warming. The way I see it, Southern California is always either in a drought, has just come out of a drought or is about to go into one. It's always been dry here. Period. The difference is urban / suburban sprawl...
  7. JoshPlumSE

    Structural Slab Supported at Corners

    I respectfully suggest that this may be due to Mxy (or warping) moments. I tend to think of this as a tendency to warp or distort the plate rather than to bend it. Since I'm more of a steel guy, I tend to related it to the Torsional Warping of I shaped beams.
  8. JoshPlumSE

    Things are Starting to Heat Up - Part XIV

    Somethings that I was thinking about recently: a) Greta Thunberg gave her "how dare you" speech at the UN approximately 5 years ago. What has changed since then? Are ecosystems genuinely collapsing? Not really. All the doom and destruction predictions haven't come true at all. At least not in...
  9. JoshPlumSE

    Things are Starting to Heat Up - Part XIV

    That is a funny / pithy comment for sure. I don't think newspapers have been very "factual" for a long time. So much so that they're in a death spiral lashing out at new media because they lost control over the political narrative in the country.... Basically because they've completely lost the...
  10. JoshPlumSE

    Artificial Intelligence in Structural Engineering

    Exactly. That's what it's best at. Or, at least that's the easiest thing to teach AI to do. Variations on this will likely be the primary driver for the use of AI for the time being. You have to remember, the only thing AI can do is what you teach it. If you teach it things that aren't...
  11. JoshPlumSE

    Considering leaving structural engineering behind as a career.

    So, my first 6 years or so after college I worked at an engineering firm that specialized mostly in heavy industrial construction. Refineries, power plants and such. I was pretty computer savvy, so I became one of their internal software gurus. When I decided I'd had enough of the industrial...
  12. JoshPlumSE

    Artificial Intelligence in Structural Engineering

    I don't think AI is very good at thinking for itself. However, it is really good at looking up information from specified sources. Or, copying existing things. My thoughts about how it could be used in structural engineering: a) In the software industry, we spend a good amount of time...
  13. JoshPlumSE

    Considering leaving structural engineering behind as a career.

    A bit of an accumulation of my personal experience and that of a number of friends of mine now that we're all +25 years into our careers. a) The ones who have stayed design engineers have usually moved up into ownership (either started their own companies or became partners at the ones they...
  14. JoshPlumSE

    Things are Starting to Heat Up - Part XIV

    Oooh, if he said that, then I agree is a horribly immoral statement. The systemic use of slave labor (whether Uyghur or political prisoners) is indefensible no matter what their labor is used for. FWIW. any organization that acknowledges China's use of slave labor like this that gives China a...
  15. JoshPlumSE

    Things are Starting to Heat Up - Part XIV

    I don't think Dik's postings are vile or immoral in any way. He is merely re-posting most of what the media reports. I still tend to think that Global Warming is happening and is at least partly caused by CO2 emissions. What most of the media fail to understand is any cost versus benefit...
  16. JoshPlumSE

    Horizontal Crack Around Basement (Not Frost Heave)

    Could it just be that the reinforcing was place in the mortar joint (ladder reinforcing) too close to the face. With a little moisture and corrosion and you'd get something like that behavior. What about on the outside of the wall? Can you see similar damage? Maybe you have to excavate a...
  17. JoshPlumSE

    contractor not following plans... at all

    That sounds like the right thing to dl. Basically point out to every other professional involved in the project that the Contractor is out of control and the building department should shut this guy down.... But, you know, in a nice way. ;)
  18. JoshPlumSE

    AISC Chapter I - Composite Section: Stress and Strain Distribution in Composite Section

    Not that I've found. When getting into the weeds of the calculations, I often like the AISC examples. However, there are just a lot of considerations for composite beams that you won't find much code guidance on. a) How to establish effective width for floor systems that aren't all...
  19. JoshPlumSE

    Combined Timber and Microlam Beam Load Sharing

    Well, it's not. The idea is more like.... there is load sharing between the two beams as one of them begins to yield / fail. So, something more applicable to a ductile failure mode. That's pretty much what KootK said in the previous thread to me. Then he pointed me to a video showing a wood...
  20. JoshPlumSE

    AISC Chapter I - Composite Section: Stress and Strain Distribution in Composite Section

    That diagram was from a book published by ASCE / McGraw Hill called "Composite Construction: Design for Buildings". Viest, Colaco, Furlong, Griffis, Leio, Wyllie. I've probably had that book for more than 20 years. I bought it when the company I worked for (RISA) was developing the first...

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