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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

24卷

期数:

2007年03期

页码:

13-18

栏目:

出版日期:

2007-09-20

文章信息/Info

Title:

ETFE Air Cushion Membrane Configurations, Structural Performances and Material Properties Experiments

作者:

陈务军¹,唐雅芳²,任小强¹,董石麟¹

1. 上海交通大学 空间结构研究中心,上海 200030; 2. 上海市建筑科学研究院,上海 200031

Author(s):

CHEN Wu-jun¹, TANG Ya-fang², REN Xiao-qiang¹, DONG Shi-lin¹

1. Space Structures Research Center, Shanghai Jiaotong University, Shanghai 200030, China; 2. Institute of Shanghai Building Science, Shanghai 200031, China

关键词:

ETFE薄膜;  气囊膜;  力学性能试验;  结构形态

Keywords:

ETFE film;  air cushion membrane;  mechanical property experiment;  structural configuration

分类号:

TU502.6

DOI:

-

文献标志码:

A

摘要:

进行了聚偏四氟乙烯(ETFE)薄膜单向拉伸和反复荷载试验,分析了应力-应变曲线、滞回环曲线特征; 根据受约束条件的力密度法找形分析方法,建立了充气膜设计分析理论,并介绍了EasyVol充气膜分析方法; 通过数值算例分析,研究了ETFE气囊膜基本形态(菱形、六边形、矩形、圆形)、矢高、气压、初应力等对找形分析的影响及相互作用; 进行了气囊膜在风压、风升作用下的荷载特性分析以及结构特性参数分析。该研究对ETFE气囊膜设计具有重要参考价值。

Abstract:

Firstly, uni-tension and cycle loading tests were carried out for ETFE film. The stress and strain curve and cycling curve were analyzed thoroughly. The results indicate that ETFE is super elastic and elastic-plastic. According to form finding method formulated from force density subjected to volume constraints, design analysis procedure was developed for pneumatic structure, and specialized EasyVol was introduced for air cushion membrane analysis. Through series numerical analysis, parametric effects on equilibrium form and inter discipline were investigated for various plan form(rhombus, hexagon, rectangular, circle), such as rise, rise-to-span, differential pressure, initial prestress. Finally, structural performance analysis was performed for cushion applied wind pressure and suction, as well as parametric effects investigation. The presented works are valuable to design of ETFE air cushion membrane.

参考文献/References:

[1] 陈务军.膜结构工程设计[M].北京: 中国建筑工业出版社,2005. CHEN Wu-jun.Membrane Structure Engineering Design[M].Beijing:China Architecture & Building Press,2005.
[2]胥传喜,陈楚鑫,钱若军.ETFE薄膜的材料性能及其工程应用综述[J].钢结构,2003,18(6):1-4. XU Chuan-xi,CHEN Chu-xin,QIAN Ruo-jun.An Introduction of Material Properties and Engineering Applications of ETFE Foil[J].Steel Construction,2003,18(6):1-4.
[3]徐国宏,袁行飞.ETFE气枕结构设计--国家游泳中心气枕结构设计简介[J].土木工程学报,2005,38(4):66-72. XU Guo-hong,YUAN Xing-fei.Design of ETFE Cushion,a Brief Introduction to the ETFE Cushion Design of Beijing Olympic National Swimming Centre[J].China Civil Engineering Journal,2005,38(4):66-72.
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[13]DIETER S,LUTAR G.Calculation of Pneumatic Structures with Easy Volume[M].Salzburg:Pyeong Chang,2005.
[14]唐雅芳.气囊膜形态、结构特性与新型膜材力学性能试验研究[D].上海:上海交通大学,2006. TANG Ya-fang.Form,Structural Performance of Air Cushion Membrane and Mechanical Experiments of New Type of Architectural Fabrics[D].Shanghai:Shanghai Jiaotong University,2006.

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备注/Memo

备注/Memo:

收稿日期:2007-06-10
基金项目:国家高技术研究发展计划(“八六三”计划)项目(2006AA705211)
作者简介:陈务军(1969-),男,重庆市人,副教授,工学博士,E-mail:cwj@sjtu.edu.cn。

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更新日期/Last Update: 2007-09-20