滚动式撑杆下节点研究与应用

毋英俊; 陈志华; 吕青

doi:10.13204/j.gyjz201008007

滚动式撑杆下节点研究与应用

doi: 10.13204/j.gyjz201008007

1.
1. 天津大学建筑工程学院土木系,天津 300072;
3.
2. 中国京冶工程技术有限公司,北京 100088

基金项目:

国家自然基金资助项目(50778122);新世纪优秀人才支持计划资助(NCET-06-0228)

详细信息

中图分类号: TU399
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- 文章访问数: 56
- HTML全文浏览量: 1
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- 被引次数: 0
出版历程
- 收稿日期: 2010-03-10
- 刊出日期: 2010-08-20

RESEARCH AND APPLICATION OF ROLL CABLE-STRUT JOINT IN SUSPEND-DOME

1.
1. School of Civil Engineering,Tianjin University,Tianjin 300072,China;
2.
2. China Jingye Engineering Corporation Limited,Beijing 100088,China

摘要

摘要: 对现有的弦支穹顶预应力施加方法进行总结，分析张拉环索方法所面临的环索与节点间摩擦损失的问题，提出在节点中设置转轴的概念，用滚动摩擦力代替滑动摩擦力来减小摩擦损失，并给出两种下弦节点方案单体式新型节点和压板式新型节点，最后以某结构模型试验为背景给出一种具体节点实物设计，从多角度给出一款在张拉过程中可保证环索滑动，张拉完毕又可将环索固定避免滑动的撑杆下节点。
- 弦支穹顶 /
- 撑杆下节点 /
- 预应力施工 /
- 摩擦
Abstract: It is summarized the current methods of suspend-dome construction,the loss of prestress in loop cable caused by friction is studied in this paper. A new kind of roll cable-strut joint with a bearing is put forward to deal with the problem. Loss of prestress is reduced because of gliding friction replaced by roll friction. Two designs of roll cable-strut joint single-part roll cable-strut joint and press broad roll cable-strut joint are given under the concept of roll axis,as well as an actual design based on a suspend-dome model test. A kind of cable-strut joint which allows sliding of cable in prestress process and fixes the cable after construction is declared in different ways.
- suspen-dome /
- cable-strut joint /
- prestress construction /
- friction

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参考文献(8)

CECS 212∶ 2006 预应力钢结构技术规程[S].

[2] Kawaguchi M，Abe M，Tatemichi I. Design，Test and Realization of Suspen-Dome System [J]. Journal of the International Association for Shell and Spatial Structures，1999，40 ( 131 ) :179-192.

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[6] 王树，张国军，张爱林. 2008 奥运会羽毛球馆索撑节点预应力损失分析研究[J]. 建筑结构学报，2007，28(6) : 39-44.

[7] 陈志华，毋英俊，王小盾，等. 预应力钢结构滚动式张拉索节点:中国，200810052955. 6[P]. 2008-09-17.

[8] CECS 235∶ 2008 铸钢节点应用技术规程[S].

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