DOUBLY SYMMETRIC TUBE STRUCTURES. II: DYNAMIC ANALYSIS
DOUBLY SYMMETRIC TUBE STRUCTURES. II: DYNAMIC ANALYSIS
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双对称管结构。
DOI：
10.1061/(asce)0733-9445(1993)119:7(2002
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Tadato Hirano
中科院分区：
文献类型：
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作者：
H. Takabatake;H. Mukai;Tadato Hirano
本文提出了一种简化的分析方法，可用于高层结构中双对称管结构的设计初期阶段，该方法采用包括弯曲、横向剪切变形、剪力滞和扭转的伸杆理论。由于框架构件和附加支撑而导致的截面刚度的不连续变化通过扩展狄拉克函数表示为连续函数。带支撑的可变管结构的挠度、剪力滞和扭转角以闭式解给出。封闭式解的准确性是根据带支撑的双对称可变框架管的数值结果建立的，其中从所提出的解决方案获得的结果与使用 FEM 代码 NASTRAN 的三维框架分析获得的结果进行比较。
This paper presents a simplified analytical method usable in preliminary stages of the design to doubly symmetric tube structures in high-rise structures by means of an extended rod theory including the bending, transverse shear deformation, shear lag and torsion. The discontinuous variation of sectional stiffness due to frame members and attached braces is expressed as a continuous function by means of the extended Dirac function. The deflection, shear lag, and torsional angle of the variable tube structures with braces are given in closed-form solutions. The exactness of the closed-form solutions is established from numerical results for a doubly symmetric and variable frame tube with braces, in which the results obtained from the proposed solutions are compared with results obtained from the three-dimensional frame analysis using FEM code NASTRAN.