以铁路高桥墩为研究对象 ，导出了计轴力及内力素方向改变所致非线性项的高桥墩振动偏微分方程。
The nonlinear partial differential equations for the tall pier vibration of railway bridges are derived by taking the influence of geometric nonlinearity into consideration, i.
以铁路高桥墩为研究对象 ，导出了计轴力及内力素方向改变所致非线性项的高桥墩振动偏微分方程。
The nonlinear partial differential equations for the tall pier vibration of railway bridges are derived by taking the influence of geometric nonlinearity into consideration, i.
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