多层预应力巨型支撑-钢框架结构拉索初拉力预估研究

顾盛; 唐柏鉴

doi:10.13204/j.gyjz201101027

多层预应力巨型支撑-钢框架结构拉索初拉力预估研究

doi: 10.13204/j.gyjz201101027

顾盛,
唐柏鉴

1.
江苏科技大学土木工程系,江苏镇江 212003

基金项目:

国家自然科学基金项目(50948035);江苏省自然科学基金项目(BK2000723)

详细信息

作者简介:
顾盛，男，1987年出生，硕士。E－mail：tangbaijian@163.com

中图分类号: TU394
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- 文章访问数: 147
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- PDF下载量: 101
- 被引次数: 0
出版历程
- 收稿日期: 2010-08-05
- 刊出日期: 2011-01-20

ESTIMATION OF INITIAL TENSION OF CABLES IN MULTI-STOREY PRESTRESS-MEGA-BRACED STEEL FRAME STRUCTURE

1.
Department of Civil Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China

摘要

摘要: 基于纯钢框架结构及钢框架-支撑结构的受力特点，提出新的结构形式预应力巨型支撑-钢框架结构体系。从理论上分析预应力巨型支撑工作机理，基于此，提出拉索初始预拉力准则，通过数值模型研究巨型支撑变形的预估方法，进而建立初始预拉力的确定理论。认为预应力巨型支撑初始预拉力以在外部作用下，受压预应力巨型支撑剩余拉力接近零为准则;多层预应力巨型支撑-钢框架结构的竖向位移，可以通过估算纯钢框架结构在竖向荷载下的竖向位移得到;工程范围内，拉索端点处的水平位移比较固定，钢框架的相对抗侧刚度影响较小。
- 预应力钢结构 /
- 巨型支撑 /
- 钢框架 /
- 初拉力准则 /
- 侧移模式
Abstract: Based on steel frame structure and frame-brace structure,a new type of structure-prestress-mega-braced steel frame was presented.Firstly it was analyzed work principle of prestressed mega brace,then the rule of initial prestress value was proposed,further researching the estimate method of mega brace deformation to set up,theory of initial prestress in mega brace.Initial prestress value should comply in the rule that residual tension in compression brace is near to zero under exterior loads.The vertical displacement of multi-storey prestress-mega-braced steel frame structure nearly equals to the value of steel frame structure under vertical load.And the horizontal displacement at brace end keeps fixed,no matter how to alter the relative stiffness of steel frame.
- prestressed steel structure /
- mega brace /
- steel frame structure /
- initial tension rule /
- sway mode

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参考文献(12)

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