[提要]  对一装有煤粉的筒仓进行了三维弹塑性动力分析，首次考虑了基础、地基在地震过程中对筒仓动力特性的影响，给出了合理的计算模型，更加接近实际。
[关键词]  筒仓 相互作用  弹塑性

Elastic-plastic dynamic response of 3-D is analysed to a silo full of coal. Affection of foundation and soil on dynamic character of silo under seismic loading are considered for the first time. It is efficient and practicable.
Keywords: silo; foundation; dynamic interaction; elasto-plastic analysis