考虑仓壁-基础-地基相互作用时筒仓结构的有限元分析

摘要

In order to calculate interaction force from wall-basis-foundation of silo,it is analyzed with ANSYS software under different conditions,rigid foundation or elastic foundation,shallow or deep silo,and axial symmetry load.The results of analysis show that the internal force of silo placed on elastic foundation is more rational than that of silo placed on rigid foundation.Notable problems are listed with silo design examples according to No Moment theory of design in＂Code for design of reinforced concrete silos＂.%为了计算仓壁-基础-地基的相互作用,利用有限元软件ANSYS对分别放置于弹性地基和刚性地基上受轴对称荷载的浅仓和深仓进行地基-基础-结构共同作用的分析.分析结果表明,将筒仓放置于弹性地基上比放置于刚性地基上,其结构内部受力更为合理,并结合具体算例提出了在筒仓结构计算中按《钢筋混凝土筒仓设计规范》提供的无矩理论计算时应注意的问题.