Stability of Tall Buildings
Stability of Tall Buildings
复制标题
高层建筑的稳定性
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
J. Hehir
中科院分区：
文献类型：
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作者：
D. Gustafsson;J. Hehir
对用于柱、实心剪力墙、穿孔剪力墙、耦合和非耦合构件、核心筒、单层结构和多层结构的稳定性计算的方法进行了研究。进行检查是为了确定不同稳定部件和系统的缺点或优点。对柱、实心剪力墙和穿孔剪力墙的挠度和屈曲结合弯曲和剪力进行了分析。分析了单层和多层结构因平移、旋转或两者组合引起的挠度和屈曲的计算方法，并将结果与有限元分析结果进行了比较。这些方法在某种程度上忽略了纯扭转的重要性，因此设计了一种在计算中包括部件扭转阻力的方法。计算方法是通过使用 Mathlab、Mathcad 和 Excel 进行计算机辅助。对计算方法和使用 SOLVIA 程序进行的有限元分析的结果进行了比较。 Vianello 用于计算柱和实心剪力墙因弯曲而产生的临界屈曲载荷的方法已证明其价值。根据研究，穿孔剪力墙稳定性计算方法需要改进。事实证明，使用极惯性矩会给出不准确的结果。对单层结构平移、旋转以及旋转平移组合的结果进行比较表明，计算方法是令人满意的。对于承受平移或旋转的多层结构，出现了关于稳定部件和楼板之间相互作用的问题。将中央核心自身的扭转阻力纳入计算方法中可以改善结果。结果表明，应进一步研究高层建筑稳定性的计算方法，并应研究确定楼板连接稳定系统相互作用行为的具体方法。
The methods used for stability calculations of columns, solid shear walls, pierced shear walls, coupled and uncoupled components, cores, single storey structures and multi storey structures have been examined. The examination performed in order to ascertain short comings or advantages for different stabilising components and systems. Analyses were made of deflection and buckling combining bending and shear for columns, solid shear walls and pierced shear walls. Calculation methods for single and multi storey structures concerning deflection and buckling due to translation, rotation or a combination of the two are analysed and the results are compared with finite element analyses results. The importance of pure torsion is somewhat neglected in these methods and therefore a method was devised for including a components torsional resistance in the calculations. The calculation methods are computer assisted through the use of Mathlab, Mathcad and Excel. Comparisons of results are made between the calculation methods and Finite Element Analysis performed with a programme called SOLVIA. Vianello’s method for calculating critical buckling loads, of columns and solid shear walls, due to bending has proven its worthiness. The method for calculating stability of pierced shear walls, according to studied, has proven itself to be in need of improvements. The use of the polar moment of inertia has proven to give inaccurate results. The result comparison of the single storey structures concerning translation, rotation and combined rotation and translation show that the calculation methods are satisfactory. Concerning multi storey structures subjected to translation or rotation a question arose concerning the interaction between the stabilising components and the floor slabs. The inclusion of a central cores own torsional resistance into the calculation methods led to improved results. The results showed that further investigation of the calculation methods concerning stability of tall buildings is advisable and that specifically methods for determining the interactive behaviour of stabilising systems joined by floor slabs should be researched.