建筑结构

2008, No.290(02) 101-102+119

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膜结构积水的事故与控制
Water-collection Analysis of Membrane Structure

罗永赤;
Luo Yongchi(Department of Civil Engineering,Yangtse University,Jingzhou 434023,China)

摘要(Abstract):

膜结构的积水是膜结构工程中一种常发生的事故。通过对膜结构积水的基本原理进行分析,考虑了膜结构受力后的变形和膜材料的蠕变性质,对找形后膜结构的合理形态进行判断,给出了防止膜结构积水的合理控制条件,并用推导的公式对实际发生的膜结构积水工程事故进行了分析。建议的膜结构积水控制条件是对正常设计、施工的膜结构而言的。由于膜材的松弛特性和其他荷载联合作用,给出的控制条件是防止膜结构积水的最小值。
The water-collection of membrane structure is one kind of engineering accidents. Based on the analysis of principle of membrane structure water-collection,considering the creep strain and deformation characteristic of membrane,it estimates the rational shape of the membrane structure after form-finding and puts forward the controlling condition to prevent water-collection.The suggested controlling condition is for the normal design and construction membrane structure.Because of the relaxation and cooperation action of other loads,the controlling condition is the minimum value.

关键词(KeyWords): 膜结构;集水;变形;蠕变
membrane structure;water-collecting;deformation;creep strain

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 罗永赤;
Luo Yongchi(Department of Civil Engineering,Yangtse University,Jingzhou 434023,China)

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DOI: 10.19701/j.jzjg.2008.02.029

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