摘要
计算地基运动时筒仓的动力响应 ,考虑了仓内散粒体与仓壁的相互作用。根据实验观测到的现象 ,将仓内上部占总质量 2 0 %～ 3 0 %的散粒体处理为几个集中质量并将其分别与仓壁均匀弹性连接 (弹性杆只承受压力而不承受拉力 ) ,分析地基运动时筒仓的动力响应 (仓壁位移值 )并与筒仓模型实测值进行了比较 。
The paper calculates the silo's dynamic response when foundation moves and takes consideration of the interaction between bulk solid and the silo wall. Based on the phenomena observed in the experiments, the paper supposes that several concentrated masses are equivalent to the bulk solid in the upper part of the silo whose mass is up to 20～30 percent of the total mass and each of the concentrated masses is connected in uniform with silo wall during which elastic trusses only bear press rather than pulling, The paper finds that silo's dynamic response (displacement of the silo wall) when foundation moves nearly resembles to that of testing results after comparison.
出处
《长安大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第5期9-12,共4页
Journal of Chang’an University(Natural Science Edition)
基金
国家自然科学基金项目 ( 5 96 780 0 3)
国土资源部岩土工程开放研究实验室项目 ( KF0 0 6 )
