The Elastic Analysis of Liquid-Solid Coupling Water of Storage Tank with Consideration of Tank Roof Mass

In the paper the roof of a tank storaged liquid is simplyfied as an end of a fixed shear beam with lumped mass. According to the principle of variants the intrinsic vibration type was found by the Heizi method, and the distribution of dynamic liquid pressure is calculated by the seismic spectrum theory. The results show that the mass of tank roof gives less effect on the distribution and magnitude of dynamic liquid pressure.