华南理工大学学报(自然科学版) ›› 2005, Vol. 33 ›› Issue (4): 39-44.

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带弹性支撑的膜结构找形分析韩大建 苏建华

  

  1. 华南理工大学 土木工程系,广东 广州 510640
  • 收稿日期:2003-12-30 出版日期:2005-04-25 发布日期:2005-04-25
  • 通信作者: 韩大建(1940-),女,教授,博士生导师,主要从事大跨度桥梁结构和空间结构的研究. E-mail:rdjhan@scut.edu.cn
  • 作者简介:韩大建(1940-),女,教授,博士生导师,主要从事大跨度桥梁结构和空间结构的研究.
  • 基金资助:

    广州市科技计划资助项目(2004z3-E0351)

Form-Finding Analyses of Membrane Structures with Elastic Bars

Han Da-jian  Su Jian-hua   

  1. Dept-of Civil Engineering,South China Univ of Tech ,Guangzhou 510640,Guangdong,China
  • Received:2003-12-30 Online:2005-04-25 Published:2005-04-25
  • Contact: Han Da-jian(born in 1940),female,professor,Ph.D.tutor,mainly researches on long—span bridge struc.tures and spatial structures E-mail:rdjhan@scut.edu.cn
  • About author:Han Da-jian(born in 1940),female,professor,Ph.D.tutor,mainly researches on long—span bridge struc.tures and spatial structures
  • Supported by:

    Supported by the Project of Science and Technology of Guangzhou(2004z3-E0351)

摘要: 针对一般的索膜结构找形时将与边界支撑相接处的索膜节点按固定节点来进行计算,没有考虑支撑结构在该节点的位移,使找形结果与实际有一定差异这一问题,在索膜结构的力密度法找形基础上,对找形过程中索膜结构与其边界支撑结构的相互作用问题进行了分析,并编制了相应的计算程序.最后通过2个算例证明了文中方法的可行性.

关键词: 弹性支撑, 索膜结构, 找形, 相互作用

Abstract:

hen applying the general methods for the form-finding of membrane structures,the connecting nodes between the membrane structure and the supporting structure are regarded as fixed nod es.and the dis-placements of the supporting structure at the connecting nodes are not talcen into account. thus resulting in the diference between form -finding results and actual situations To solve this problem, the interaction between the
membrane structure and the supporting structure in the form-finding process is analyzed based on the Force Den-sity Method.Correspo nding software for the form-finding is then programmed. Finally,two examples are pre-sented to verify the feasibility of the proposed method .

Key words: elastic bar, membrane structure, form-finding, interaction