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  1. martintstruct

    Chain Link Fence Engineering

    The guide is useful for figuring the wind are on chain links based on the percentage of wind each configuration catches. You should use new wind speed/code to calculate pressures and figure the line post strength as shown in the example in the guide. The footing I think is better to calculate...
  2. martintstruct

    ASCE 113 Vertical Seismic Forces

    After doing some test, depending on the geometry of some substation structures and the equipment mounted to them, the publications doesn't always give me higher base reactions when compared to following the vertical seismic design of ASCE-7. Another factor that makes ASCE-7 combinations give...
  3. martintstruct

    ASCE 113 Vertical Seismic Forces

    Does that mean that I shouldn't use this publication for a high seismic region?
  4. martintstruct

    ASCE 113 Vertical Seismic Forces

    Case 1: 1.1D + 1.2W*Ifw + 0.75SC + 1.1Tw Case 2: 1.1D + 1.2IwIfi + 1.2WiIfiw + 0.75SC + 1.1Tw Case 3: 1.1D + 1.0SC + 1.1Tw Case 4: 1.1D + 1.25E*Ife + 0.75SC + 1.1Tw D = structure and wire dead load W = extreme wind load Wi = wind load in combination with ice Iw = ice load in combination with...
  5. martintstruct

    ASCE 113 Vertical Seismic Forces

    Can anyone explain to me how vertical forces due to seismic loading are accounted for in the load combination in this publication? I am familiar with the IBC provisions of 0.2*Sds*D and applying this term with the dead load factor. However, since the load combinations in this ASCE publications...

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