A buffeting analysis is carried out to evaluate the effect of aerodynamic turbulences on the design of the pylon foundation of a 700m steel cable-stayed bridge. Both completed and in construction structures are investigated in evaluating the along-bridge-axis bending moment at the tower leg and caisson. Based on current investigations, expected aerodynamic member forces are found to reach several times compared to gust-factored static wind results. The maximum bending moment in construction particularly exceeds a design value invoking to find out a measure for suppressing wind-induced vibrations. This study examined a possibility of using buffeting cables as one of feasible measures leaving couple of open questions in details
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