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高层建筑结构的结构效率系数综述

发布时间:2018-02-06 02:55

  本文关键词: 高层结构 结构效率系数 结构效率 结构优化 出处:《结构工程师》2015年06期  论文类型:期刊论文


【摘要】:结构效率系数基于结构效率影响因素提出,为结构分析提供一个定量的指标。综述了现有的适用于高层建筑结构的结构效率系数,包括:1基于轴向变形贡献率的结构效率;2结构整体弯曲剪切变形比s系数;3基于刚度折减的桁架效率系数E_f;4基于构件应力的材料效率指数MEI_c;5基于结构布置的结构效率系数。对比了各系数的适用范围、优化准则、优化层次、作用和优缺点,并对值得进一步研究的问题做出展望。结构效率系数可促进结构体系的改进和创新,又可用于工程设计,为结构优化设计提供有效的指导。
[Abstract]:The factors affecting the efficiency of the structure efficiency coefficient is proposed based on the structure, provide a quantitative index for structural analysis. Summarizes the suitable for the high-rise building structure efficiency coefficient, structure efficiency: 1 axial deformation based on the contribution rate of 2; the whole structure of bending shear deformation than the s coefficient; 3 truss stiffness coefficient E_f based on the 4 reduction; material efficiency index of the component stress based on MEI_c; 5 based on structural efficiency factor structure layout. Comparison of the scope of application, the coefficient optimization criterion, hierarchical optimization, advantages and disadvantages, and make the prospect of it is worthy of further study. The structure efficiency coefficient can promote the improvement and innovation of structure the system can be used in engineering design, to provide effective guidance for structure optimization design.

【作者单位】: 同济大学建筑工程系;华东建筑设计研究院有限公司;
【基金】:上海市教委科研创新重点项目资助(14zz035)
【分类号】:TU973.3

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