Wind tunnel test of a sectional model has becoming popular in long span bridge design processes. It is convenient to analyze the bridge deck aeroelastic behavior. The model is simple in structure, hence it can reduce the wind tunnel test cost accordingly, compare to full model. However, the model geometrical shape as well as structural dynamic properties... Continue Reading →
Vibration Damages Towers (Case : Ferrybridge Cooling Towers Collapse)
On the 1st November 1965, during high winds, three out of a group of eight cooling towers at Ferrybridge 'C' Power Station collapsed, with the remaining towers sustaining severe structural damage. The towers, each 375 feet high, had been constructed closer together than was usual and had greater shell diameters and shell surface area then... Continue Reading →