| Summary |
Wind loads on domed free roofs have been studied in a wind tunnel. The objective of the present study is to propose appropriate wind force coefficients for designing the main wind force resisting systems and the peak wind force coefficients for designing the cladding and its immediately supporting members. Wind pressures were measured simultaneously at many taps along a center line both on the top and bottom surfaces of the roof model for various wind directions. Assuming that the roof is rigid and supported by four corner columns, the axial forces induced in the columns are regarded as the most important load effect for discussing the wind force coefficients for designing the main wind load resisting systems. Design wind force coefficients are proposed based on the results. The roof is divided into three zones and the wind force coefficients are provided for these zones as a function of rise-to-span ratio. The peak wind force coefficients for designing the cladding.
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