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Recent content by TpaRAF2

  1. TpaRAF2

    Any idea how this structural system works?

    Hi, Ron247 Is it possible there are 'U' block in the 84' wall at various courses? That would allow some reinforcement of that wall. The images do not show any lintels or really anything other than masonry courses. The use of masonry 'ladders' (within the mortar) is also common, but I do not...
  2. TpaRAF2

    Any idea how this structural system works?

    Hi, Ron247 My impression this is basically a girder-beam-stringer system. The girders are obvious in the first photo. The bar joists are likely simple-span, and serve as the beams. The roof deck acts as the stringers between the beams. Since the wall parallel to the bar joists supports the...
  3. TpaRAF2

    Bending in weak axis: multiple thin plates stronger than one thick plate ??? S(thin) = 4x S(thick)

    Here's an odd puzzle I've encountered. I must be missing something, as the calcs do not match 'common sense' (IMO). I am reviewing bending of a flat steel bar about the weak axis. Very straight forward to determine I, y and then S. If I compare using multiple, thin flat bars (same width that...
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