碳纤维布加固木梁抗剪性能的试验研究

谢启芳; 薛建阳; 赵鸿铁; 隋龑; 张风亮

doi:10.13204/j.gyjz201206019

碳纤维布加固木梁抗剪性能的试验研究

doi: 10.13204/j.gyjz201206019

1.
西安建筑科技大学土木工程学院西安 710055

基金项目:

国家自然科学基金资助项目(51108373);国家文物局文物保护科学和技术研究课题(20110123);陕西省教育厅科研计划项目(11JK0939)

详细信息

作者简介:
谢启芳，男，1978年出生，工学博士，副教授

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- 文章访问数: 117
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- 被引次数: 0
出版历程
- 收稿日期: 2011-11-18
- 刊出日期: 2012-06-20

EXPERIMENTAL STUDY ON SHEAR BEHAVIOR OF TIMBER BEAM STRENGTHENED WITH CFRP SHEET

1.
School of Civil Engineering,Xi'an University of Architecture &Technology,Xi'an 710055,China

摘要

摘要: 为了分析木梁加固后的力学性能,对碳纤维布加固木梁抗剪性能进行了试验研究,得到了木梁剪切破坏的破坏形态、荷载-挠度曲线及荷载-应变关系等性能。试验结果表明:木梁剪切破坏通常为顺纹错动剪切破坏;顺纹错动剪切破坏具有很好的延性,而弯曲破坏是典型的脆性破坏;支座及加载点附近的碳纤维布直至破坏时也没有出现拉应变,梁端木材承受横向拉力。
- 木梁 /
- 碳纤维布加固 /
- 顺纹错动剪切破坏
Abstract: To analyse the mechanical property, the experimental study on timber beam strengthened with CFRP sheetwere performed. The shear behaviors, such as failure patterns in shear, load-deflection curves and relationshipbetween load and strain were obtained. The results showed that the failure patterns in shear were usually shear failurealong the grain. The ductility of failure along the grain was very good, and the flexural failure was a typical brittlefailure. The CFRP sheets adjacent to the supports and loading points were subjected to compression until failure.
- timber beam /
- strengthened with CFRP sheet /
- shear failure along grain

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参考文献(10)

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