摘要
介绍了高墩考虑Ｐ—Δ影响的地震反应的计算方法。同时在计算中考虑了竖向地震力，并分析了取不同振型数的影响。
In this paper, the authors introuduce a calculation method for seismic response of high pier including P—effects and vertical seismic force. And analyse the effect of mode shapes in calculation. Put forward some suggestions.
