纤维增强复合材料-钢复合管混凝土受弯构件的试验研究

魏洋; 吴刚; 吴智深; 李国芬

doi:10.13204/j.gyjz201111025

纤维增强复合材料-钢复合管混凝土受弯构件的试验研究

doi: 10.13204/j.gyjz201111025

魏洋^1,2,3,
吴刚³,
吴智深³,
李国芬¹

1.
1. 南京林业大学土木工程学院,南京210037;
2.
2. 重庆交通大学桥梁结构工程重点实验室,重庆400074;
3.
3. 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京210096

基金项目:

交通部桥梁结构工程交通行业重点实验室开放课题(CQSLBF-Y10-3);混凝土及预应力混凝土结构教育部重点实验室开放课题;江苏省自然科学基金项目(BK2009483)

详细信息

作者简介:
魏洋,男,1978年出生,博士,副教授,国家一级注册结构工程师. E－mail:wy78-seu@yahoo.com.cn

中图分类号: TU398.9
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- 文章访问数: 85
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- 被引次数: 0
出版历程
- 收稿日期: 2010-11-03
- 刊出日期: 2011-11-20

EXPERIMENTAL STUDY ON FRP-STEEL COMPOSITE TUBE CONCRETE FLEXURAL COMPONENTS

1.
1. College of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China;
2.
2. Key Laboratory of Bridge-Structure Engineering,Chongqing Jiaotong University,Chongqing 400074,China;
3.
3. Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education,SEU,Nanjing 210096,China

摘要

摘要: 为研究纤维增强复合材料(FRP)-钢复合管混凝土受弯构件的力学性能,对1根钢管混凝土受弯构件和2根FRP-钢复合管混凝土受弯构件进行试验,其中,FRP-钢复合管混凝土受弯构件分别为2层CFRP与钢管复合和1层CFRP+2层BFRP与钢管复合。结果表明,FRP能够提高钢管混凝土受弯构件的极限承载力,使复合管试件产生钢管屈服后的强化阶段,提高其安全承载力储备,保证构件屈服后的一定刚度;多种纤维与钢复合可实现纤维分批逐次断裂,改变其破坏模式。
- 纤维增强复合材料 /
- 纤维增强复合材料-钢复合管 /
- 混凝土 /
- 受弯构件 /
- 抗弯性能
Abstract: To study the mechanical performance of FRP-steel composite tube concrete flexural components,a steel tube concrete flexural component and two FRP-steel composite tube flexural components were experimentally investigated.Two FRP-steel composite tube components were composite with 2 layers of CFRP and steel and a layer of CFRP+2 layers of BFRP and steel.The test results showed that the ultimate bearing capacity of steel tube concrete flexural components could be enhanced by FRP.The hardening stage of load-displacement curves were achieved after steel yielding of the FRP-steel composite tube concrete specimens,the security capacity reserve was increased and a certain stiffness of the component after yielding is achieved.The fibre broken group by group gradually could be realized by different fibres and steel composite,the failure mode was changed.
- FRP /
- FRP-steel composite tube /
- concrete /
- flexural members /
- flexural behaviour

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参考文献(6)

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