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  1. steeler709

    Steel Web Joists & Girders

    I just remembered. The approach I offered will work for any K-Series joist. For S,J,or H-Series, it will work as long as the span of the joist under consideration is greater than the critical span. The critical span of pre-K-Series joist is denoted by a heavy horizontal line in the load table...
  2. steeler709

    Steel Web Joists & Girders

    The age of the joist is very important. There are still joists around that were made with A7 Steel with allowable stress of 18KSI. Also lots of J-Series with allowable stress of 22KSI. You may be able to extract a coupon for analysis without destroying the joist, possibly the end of one of the...
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