悬索及其索网在高温(火灾)作用下的计算

周焕廷; 李国强; 罗永峰

doi:10.13204/j.gyjz200902019

悬索及其索网在高温(火灾)作用下的计算

doi: 10.13204/j.gyjz200902019

1.
1. 武汉理工大学土木工程与建筑学院,武汉 430070;
2.
2. 同济大学土木工程学院,上海 200092

基金项目:

国家杰出青年科学基金项目(50225825)

详细信息

作者简介:
周焕廷,男,1969年3月出生,博士,讲师.E-mail:001hawk@163.com

计量
- 文章访问数: 52
- HTML全文浏览量: 7
- PDF下载量: 89
- 被引次数: 0
出版历程
- 收稿日期: 2008-10-06
- 刊出日期: 2009-02-20

ANALYSIS OF CABLE AND CABLE-NET STRUCTURES AT HIGH TEMPERATURE( IN FIRE)

1.
1. Institute of Architecture and Civil Engineering,Wuhan University of Technology,Wuhan 430070,China;
2.
2. College of Civil Engineering,Tongji University,Shanghai 200092,China

摘要

摘要: 对悬索及其双曲索网结构在索张紧状态下发生火灾时结构的反应特点进行分析。在节点荷载作用下,悬索及其双曲索网的面内位移相对于面外位移来说是一个较小量,可以忽略;且高温作用下索网结构具有卸载的特性,据此对悬索及其索网结构在荷载作用同时经受高温作用时结构反应进行理论推导,同时,考虑了材料和索网结构的几何非线性问题。算例表明,该方法正确、简便,精度满足工程要求。
- 双曲索网 /
- 火灾反应 /
- 简化算法 /
- 双重非线性
Abstract: The response characteristic of hyperbolic paraboloid cable-net in fire, such as displacement and inner force, have been investigated. The in-plane horizontal displacement of cable-net structure under concentrated load is small enough relative to the out-plane displacement of the cable net, which can be ignored. A simplified method, which considers the material and geometric nonlinear property, is presented to analyze the behavior of cable-net structure at high temperature. To validate the method, two models are analyzed by the simple method and finite element method (FEM). Comparisons of two results indicate that the simplified method is correct and convenient to analysis the cable net structure in fire (at high temperature).
- hyperbolic paraboloid cable net /
- structural response in fire /
- simplified method /
- dual nonlinear

HTML全文

参考文献(12)

.Sun F, Wang Y Q, Shi Y J, et al . The Inflection Performance Analysis of the Complex Single-Layer Cable Net Under Horizontal Load[C]//Fourth International Conference on Advances in Steel Structures: Oxford: Elsevier Science Ltd, 2005: 395-399.

[2] .Maurin B, Motro R. Stability and Mechanism Order of Isotropic Prestressed Surfaces[J]. International Journal of Solids and Structures, 2004, 41(9/10): 2731-2741.

[3] .Richard Liew J Y, Lee B H. Experimental Study on Reciprocal Prism(RP) Grid for Space Structures [J]. Journal of Constructional Steel Research, 2003, 59(11): 1363-1384

[4] .Shan W, Yamamoto Y, Oda K. Analysis of Frame-Cable Structures[J]. Computers Structures, 1993(4): 673-682.

[5] .Barnes M R. Form-Finding and Analysis of Prestressed Nets and Membranes[J]. Computers Structures, 1988, 30(3): 685-695.

[6] .Douglas SPorter, David W Fowler. The Analysis of Nonlinear Cable Net Systems and Their Supporting Structures [J]. Computers Structures, 1973, 3(5): 1109-1123.

[7] .贾乃文, 张润民. 线性强化材料悬索及索网计算[J]. 土木工程学报, 1996, 29(4): 52-56.

[8] .贾乃文, 张润民. 弹塑性索网结构的最小势能原理[J]. 空间结构, 1999, 5(1): 10-25.

[9] .王仕统. 双曲抛物面索网结构的近似分析[J]. 建筑结构学报, 1992, 13(3): 43-52.

[10] .罗延忠. 悬索结构的双重非线性有限元分析[J]. 辽宁工程技术大学学报, 1991(1).

[11] .周焕廷. 鞍形索网结构的抗火性能研究[D]. 上海: 同济大学, 2006.

[12] .European Committee for Standardisation. Eurocode 3. Design of Steel Structures Part 1-1[S]. General Rules and Rules for Buildings, EN 1993-1-1, Brussels, Belgium: 2005.

施引文献

资源附件(0)

访问统计