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Recent content by JMASE

  1. JMASE

    Overloaded precast Ts

    Hard to say, but approx. 50% increase in factored LL
  2. JMASE

    Overloaded precast Ts

    If precast Ts are overloaded (significantly) and their loaded deflections measured, does the failure of these Ts to rebound when unloaded imply that they have lost structural capacity? Or, is it possible that some yielding and permanent deflection has occured, but if reloaded with a smaller...
  3. JMASE

    Spancrete Research Notes

    bones206, Thanks, very helpful.
  4. JMASE

    Spancrete Research Notes

    Ingenuity Thanks again.
  5. JMASE

    Spancrete Research Notes

    Ingenuity, No.s 1002, 1003, and 1004. Thanks!
  6. JMASE

    Spancrete Research Notes

    Yes, I checked Wells. No joy for Spancrete Research Notes.
  7. JMASE

    Spancrete Research Notes

    Does anyone have a link to the Spancrete Research Notes? The link in one of the treads from 2020 is dead. Thanks
  8. JMASE

    timber scissor trusses

    Architect wants to build a 60 ft. long by 20 ft. wide open plan (no interior walls)structure. The short direction roof will be broken up mid span with clerestory windows. It will be framed with custom timber scissor trusses. What's the best way to handle scissor truss thrusts and take the wind...
  9. JMASE

    Vierendeel HSS column design

    Thanks to all for your ideas
  10. JMASE

    Vierendeel HSS column design

    Architect wants to have 70ft. atrium columns using HSS sections forming a 4-sided ladder. I can figure the "r" of 4 HSS sections spread apart from each other. The question is, how to figure the spacing of the horizontal ladder pieces to make sure the overall column is not too slender. Ideas?
  11. JMASE

    hybrid steel/CLT structure

    All, I'm looking to get a better understanding of using CLT deck with gyp concrete topping, supported by steel beams and columns for a five story institutional building. Specifically, what to pay attention to when using the CLT as a floor diaphragm sending lateral forces to concrete shear...
  12. JMASE

    Very high-end residential - structural design fees are challenging/confusing me

    My $ 0.02: I've been in this business a long time, 40+ years. As a solo practice, I 1) am very picky about clients..its a risk management requirement. 2) never base a fee on $/SF. If you do, you're just chasing commodity work and it's a race to the bottom. 3) always put together a detailed...
  13. JMASE

    Camera setup for facade inspections?

    I have found laser scanning to be very helpful, and can provide out of plumb data, which can tell the story about bulging and rust jacking. I've had the laser scan guy also overlay visual photography on the same scan location for reference.
  14. JMASE

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

    After doing some research, I wanted to share an excellent guide to reinforcing metal building frames and purlins: https://www.aisc.org/globalassets/modern-steel/archives/1998/03/1998v03_reinforcement_design.pdf
  15. JMASE

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

    Thanks to all for responses
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