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  1. semiautomatix

    Flagpole Wind Loads FBC

    I am trying to determine the flagpole design wind speed. FBC references FP 1001-17 and I am not able to find the standard anywhere. FP 1001-07 however notes the design wind speed to be: "3-second gust speed at 33 ft (10 m) above the ground associated with an annual probability of 0.02 of being...
  2. semiautomatix

    ETABS - CHECK MESHING

    I am trying to understand what the numbers mean - has anyone encountered this before? The slab is defined as a shell element. Auto mesh.
  3. semiautomatix

    W6 - Unbraced length not listed in AISC 15 ed

    I am unable to locate any W6x shape in Table 3-2 of the AISC 15 ed. While the section properties are listed in Table 1-1 but not in Section 3. I am trying to get the Lp and Lr values to check the capacity of the section. Older versions of the AISC manual provide the unbraced length for...
  4. semiautomatix

    PENETRON VS WATER-PRROFING

    Thank you for the responses! This is with regards to water=proofing the elevator pit.
  5. semiautomatix

    PENETRON VS WATER-PRROFING

    Recently, I came across a proposal by the GC to eliminate waterproofing layer and use Penetron in the mix design for a spread footing. The project is in South Florida - water table is 2'-0" below the bottom of footing. Is this a widely accepted practice?
  6. semiautomatix

    MEMBER SELECTION TABLES - HSS (COMPOSITE COMPRESSION)

    Perhaps this has been asked before - Where can I find the tables 4-13 thru 4-20 listed in the AISC 14th edition in the 15th edition? "Have the tables moved to another section in the code?
  7. semiautomatix

    CSI Spiral Pins 6000 PSI - LOWER CAPACITY

    I was reviewing shops for ceiling framing and noticed this in the ESR report for CSI spiral pins. The allowable shear and tension loads for f'c = 6000 PSI is smaller than the same for f'c = 3000 PSI. Is there a reason for this? Reference for image: Page 7, ESR-2024 #firstPost...

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