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  • Users: scully44
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  1. scully44

    math problem (sinusoidal motion)

    Does anyone know how to solve the following equation: -A*2*PI/6*COS(2*PI*t/6)-B*2*PI/18*COS(2*PI*t/18)=0 Where: A is a constant B is a constant t = time Find: all values of t between 0 & 18 such that the above statment is true. the function is velocity of a point subjected to...
  2. scully44

    wind uplift

    I am working on a job in massachusetts. The Mass code requires that parts of roofs subject directly to wind pressure that are within a distance 1/10 of the least dimension of the building or ten feet wichever is less of the peak or eave be designed for an uplift of 1.7 times the base wind...
  3. scully44

    built up member weld

    I have a client that has to W8x21 beams stacked one on top of the other. My question: is there an AISC prequalified weld I can use to attach the flanges together. The ones shown in AISC 9th Ed. Do not show any attaching 2 plates along their edge. The weld will only have to carry the...

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