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  1. 10k

    Reduction factors for hooked bars in tension

    thread167-228427 The above thread answers some of the questions I have about developing hooked bars in footings, but how do I use ACI 318-11, para 12.5.3.3 when the hooks are in a footing? PCA Notes on ACI 318-99 is a good example of my question. On page 24-18, the tension development length...
  2. 10k

    Methane (blast) containment pit

    Need to design a concrete cover for a concrete methane spill containment pit (5'x25'x4'deep). It's sized for 3' of spilled methane with 1' extra to the bottom of any vents. Is there an industry generated code for the possible explosion pressure? What about depth of concrete cover for fire...

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