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Recent content by 0404

  1. 0404

    Floor joist span increase

    The sub floor plays a big role in this case. All uniform loads on sub floor shall be transferred safely to joists. If the sub floor can only span 16” for the code specified loads, I doubt the system would work same as joist spaced 12” o/c, because the double 2x10 joist is not able to take more...
  2. 0404

    Concrete slender wall design

    dlew, thanks for the reply. Yes, the wall is 59mm thick. I am also not very sure how to engineer the 59mm thick wall (2-5/16" thick). But it seems to me it is not ruled out to design 59mm walls using ACI10.2, 10.3 10.10. My point is 59mm concrete wall (3000mm high) still has some capacity...
  3. 0404

    Concrete slender wall design

    I have designed a load bearing concrete wall for one-storey building, Wall thickness t=59mm, height h=3000 mm and one single layer #4 bars @ 250mm vertically reinforced at center of the wall. The h/t =50.8 and kL/r =135.6 of the wall shows a very slender wall. I figured out the P-M diagram for...
  4. 0404

    Category 4 Hurricane

    eureka, thank you very much. I think The Saffir/Simpson Hurricane Scale using 1-minute average wind speed, but IBC 2000 using 3-second wind speed. Do you know how to convert them? Thank you again.
  5. 0404

    Category 4 Hurricane

    Is here anybody to tell me design wind speed using IBC 2000 for category 4 hurricane.Thank you.
  6. 0404

    Warping constant, H for lipped sections

    Go to "WWW.rsgsoftware.com" and download program "CFSCT". It can calculate the warping constant for you. Good luck.
  7. 0404

    IBC 0.2 SEC SPECTRAL RA vs UBC SEISMIC ZONE 4

    Hi Everyone: I would like to know which minimum number of 0.2-sec. spectral response acceleration in IBC is equivalent to the seismic zone 4 of UBC. Thanks
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