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Recent content by silotank1

  1. silotank1

    Seismic Loading

    I have been given this equation to work to R(T) = aN*RD(T)*P*t Where aN = 2.0 m/s-2 (nominal acceleration for zone 1b and class C building) RD(T) = Spectrum for Site S2 P = Damping t = topographic Coefficient equal to 1 There are 2 graphs for RD(T) Top graph(The graph is in French and says...
  2. silotank1

    Seismic Loading

    Thank you for your reply It is a flat Based GRP tank and it is not in the US. The bending moment comes from Wieght of the full tank/10 times the Height of the tank/2 We normally design to BS4994 which doesn't really have anything on Seismic Loading. in the UBC code there are some formulae but...
  3. silotank1

    Seismic Loading

    How do I go about designing for seismic loading? Our normal calculation for designing a tank uses the 4 x the bending moment x 1000 divided by pi x diameter^2 is this correct way to go about this? We state that this is designed to 0.1g, is this correct? if so how does changing the g change the...
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