Seismic Hydrodynamic Pressure of Bridge Pier in Deep Water

摘要

The feasibility of a modified formula for seismic hydrodynamic pressure on pier in deep water in design of highway bridges is discussed in this paper. Several recent results of dynamic response analyses of bridge piers in deep water by various approaches are compared with the values from the formula numerically. It is shown that the results increase with water depth in a consistent trend as the curves by means the suggested formula, at least in the range of depth less than 60 m. The formula is conservative in the range of depth greater than 80, even at depth of 168 m.