Abstract
A model of pretensioned one-way type suspension roofs was made. Characteristics of the response of the model in a smooth flow and in a shear flow were investigated. Its responses were also calculated from characteristics of pressure fields on rigid roof models on the assumption that roof movement had no effect on the pressure fields. The measured and calculated responses were compared and effects of the roof movement on the pressure fields were discussed. An oscillation in the anti-symmetric first mode, which appeared to be a self-excited oscillation, occurred to the model in the smooth flow at a flow velocity. When this oscillation was excluded, it appeared that roof movement did not drastically change the fluctuating pressure fields as well as mean pressure fields.
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