摘要
在符拉索夫开口薄壁杆件理论平面假定的基础上 ,针对核筒 ,采用三次B样条有限条方法构造连续化模型 ,并分别计算其动、势能。针对悬挂部分 ,分别应用连续梁的三弯矩方程和悬吊体系理论 ,计算其动、势能。然后 ,由拉格朗日公式 ,得到悬挂结构体系的动力方程 ,并用Wilson -θ法求解。最后 ,结合算例 ,说明悬挂结构具有良好的减震效果。
In this paper,the derivation of both potential and kinetic energy expressions is presented for the suspension structure with story vibration absorption apparatus.For the core tube,the derivation is conducted using the cubic B Spline Finite Stripe Method in which the rigid plane assumption in the Vlasov theory is adopted.For the suspension parts,the derivation is processed applying FM method and the suspension system theory respectively.The dynamic equations of the structure are set up using the Lagrange's equation and the Wilson\|θ Method is used to carry out time history analysis of the dynamic responses of the structures under earthquake actions.A numerical example is provided to illustrate the good vibration\|absorbing effect of the suspension structure.
出处
《工业建筑》
CSCD
北大核心
2002年第1期20-23,共4页
Industrial Construction
关键词
筒体结构
悬挂结构
自振频率
加速度
位移
地震反应
tubular structure\ suspension structure\ cubic B\|spline finite stripe\ free frequency\ acceleration\ displacement
