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  1. pallencn

    Progressive Collapse - Alternate Path Method in UFC

    I understand what the UFC says. What I'm more interested in is what it DOESN'T say. Anyone have any practical real-world experience with this?
  2. pallencn

    Progressive Collapse - Alternate Path Method in UFC

    Anyone familiar with UFC 4-023-03 (2009), particularly the Alternate Path Method as it applies to Structural Steel framing? A couple questions: 1. The load combination is listed as (1.2 OR 0.9) * Dead Load. Typically a 0.9 factor is used when you have load acting opposite of dead (wind...
  3. pallencn

    Steel bar joists - steep slope

    I am designing a roof with a 12:12 pitch. Want to use steel bar joists (span parallel to slope), but am concerned about how to detail the seat and bearing condition. I have a joist catalog that provides seat heights for slopes only up to 8:12. Does anyone have information on seat heights, or...
  4. pallencn

    re_bar couplers use in R.C.C

    I am considering using these threaded bar couplers (Lenton or BarSplice) in a project. We are designing a "Phase 1" building which will likely have a "Phase 2" connected to it 3-5 yrs down the road. The couplers will be at the face of Phase 1, for future rebar to splice into...
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