考虑贮仓在地震反应中的P-△效应和钢筋混凝土支承柱的刚度退化,对柱承式贮仓的地震反应进行了非线性分析。将地震加速度记录调整到8°、9°分别输入,用Wilson θ法逐步积分非线性微分方程,并作了大量计算与分析,提出了P-△效应的统计结果,对贮仓的抗震验算有重要参考价值。 Considering the P-△ effect of the silo in the seismic response and the stiffness degradation of the reinforced concrete support columns, the nonlinear analysis of the seismic response of the column-supported silo is performed. The earthquake acceleration records were adjusted to 8° and 9°, respectively. The non-linear differential equations were integrated step by step with the Wilson θ method, and a large number of calculations and analyses were made. The statistical results of the P-△ effects were presented, and the anti-seismic checking of the silo was performed. Important reference value.