Experimental Study on Effect of Water Depth on Earthquake Response of a Deep-water Cable-stayed Bridge Tower

Abstract With the aim of investigating effect water depth on earthquake response a deep-water cable-stayed bridge tower, this study designed and manufactured large-scale tower model, taking across deep reservoir hydropower station as reference. Under boundary conditions similar to reference, shaking table tests were conducted reflect structural under white noise actions at different depths. The time history curve tower’s was recorded used investigate variations in natural frequency, displacement, stress strain depths actions. results showed that frequency decreased almost linearly with increase depth. displacement top increased gradually In addition, bottom transverse direction nonlinearly longitudinal