【作者】 胡启平； 卢明；

【Author】 Hu qiping, Lu ming College of civil engineering, Hebei engineering university, Handan, China 056038

【机构】 河北工程大学土木工程学院；

【摘要】 在结构连续化假定的基础上,将内筒和外筒视为铁摩辛柯梁,同时考虑内筒和外筒的剪切与弯曲变形,建立了筒中筒结构协同分析的哈密顿对偶体系,导出了相应的状态空间方程,其系统矩阵具有辛矩阵的特性,可用精细积分法求该体系的高精度数值解。论文提出了一套分析筒中筒结构协同工作的新方法,利用这种方法对筒中筒结构进行协同计算,计算简捷明了,编制的计算程序能应用于这类结构的初步分析,为结构方案的确定和结构设计提供了较为准确的依据。更多还原

【Abstract】 By assuming the building to be continuous, the Hamiltonian dual system of the cooperation analysis was established for the tube-in-tube structures. The shears and flexures of the inter tube and the outer tube were considered as Timoshenko beams. The state space equations were educed, in which the system matrix had the symplectic characters. The high accuracy numerical solutions of the system were obtained using the precise integration method. A new method for the cooperation analysis of the tube-in-tube structures was proposed. It is simple and convenient to us this method to calculate the cooperation analysis of the tube-in-tube structures. The established computer program can apply in the preliminary analysis computation of such structures, and it also provides a more accurate basis for the structural plan determinations and the structural designs.更多还原