Abstract
For this paper, hydraulic model experiments and numerical computations were conducted to perform a basic verification of the technology related to new conceptual floating structure supporting high rise building. It was confirmed that the mooring system could withstand winds and waves with a 200-year return period in Tokyo Bay. However, it was also found that resonance might occur at around 3.0 Hz between the building and the floating body. In particular, this resonance could amplify the horizontal oscillation at the top of the building. In addition, around this resonance frequency, there could be large spectral components of shear stress and bending moment at the base of the building. It is important to consider these phenomena carefully in the structural design. There is also the problem of establishing a way to evaluate the resonance effect for the structural design.
