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采用SAP2000对不同斜柱角度的高层斜交网格筒结构模型进行了弹性分析和静力弹塑性分析。探讨了斜交网格筒结构抗侧刚度的发展过程;总结了斜交网格筒结构塑性发展过程及构件屈服顺序,明确了斜交网格筒结构的屈服路径;分析了主环梁跨高比对斜交网格筒结构刚度和塑性发展过程的影响,以及斜柱的受压性能对斜交网格筒结构延性的影响。结果表明:高层斜交网格筒结构的延性较差,结构的刚度和承载力退化不明显;提高斜柱截面的受压性能能够明显改善结构的延性;主环梁跨高比对斜交网格筒结构的刚度发展过程影响很小。
Using SAP2000, elastic analysis and static elasto-plastic analysis of high skewed grid structure model with different skew angles were carried out. The development process of anti-side stiffness of skewed grid structure is discussed. The plastic development process of skewed grid structure and yield order of component are summarized. The yield path of skewed grid structure is clarified. The effect of the ratio on the stiffness and plasticity of the skewed grid structure and the effect of the pressure on the ductility of the skewed grid structure are studied. The results show that the ductility of high-skewed grid structure is poor, and the stiffness and load-bearing capacity of the structure are not obviously degraded. Increasing the compressive property of skewed columns can obviously improve the ductility of the structure. The stiffness of the lattice structure of the development process has little effect.