CFRP加固木柱性能的试验研究

朱雷; 许清风

doi:10.13204/j.gyjz200812030

CFRP加固木柱性能的试验研究

doi: 10.13204/j.gyjz200812030

朱雷¹,
许清风²

1.
1. 上海市建筑科学研究院,上海 200032;
2.
2. 上海市工程结构新技术重点实验室,上海 200032

基金项目:

上海市科学技术委员会应用技术开发项目(04-033);国家科技支撑计划(2006BAJ03A10)

详细信息

作者简介:
朱雷,男,1964年10月出生,高级工程师,E-mail:zhulei@sribs.jk.sh.cn

计量
- 文章访问数: 99
- HTML全文浏览量: 11
- PDF下载量: 59
- 被引次数: 0
出版历程
- 收稿日期: 2007-11-28
- 刊出日期: 2008-12-20

EXPERIMENTAL RESEARCH ON BEHAVIOR OF CFRP-REINFORCED TIMBER COLUMNS

Zhu Lei¹,
Xu Qingfeng²

1.
1. Shanghai Research Institute of Building Sciences Shanghai 200032;
2.
2. Shanghai Key Laboratory of New Technology Research on Engineering Structure Shanghai 200032

摘要

摘要: 通过10根CFRP加固木柱的试验,重点研究了CFRP形式、层数及埋设AFRP筋对木柱受力性能的影响。研究结果表明,粘贴水平CFRP布加固木柱的受压承载力提高7.6%～26.1%,延性性能也得到明显改善。侧面埋设AFRP筋加固木柱的受压承载力提高17.7%～41.5%,再采用水平CFRP布包裹后延性性能得到明显改善。提出了CFRP约束木柱的强度模型,并线性回归了约束有效性系数k1。CFRP加固木柱可显著提高木柱的受压承载力和延性,可应用于木结构维修加固的工程实践。
- 碳纤维 /
- 木柱 /
- 加固 /
- 性能 /
- 承载力 /
- 延性
Abstract: Ten timber columns strengthened with CFRP strips and AFRP bars were tested and effective factors such as shape and layer of CFRP strips,layout of AFRP rods were studied. The ultimate load-bearing capacities of timber columns with CFRP strips are increased by about 7.6%～26.1% over the control specimen,and the ductility performance also has a significant betterment. The ultimate load-bearing capacities of timber columns with AFRP rods have 17.7%～41.5% increases over the control specimen,and after wrapped with CFRP strips,the ductility has an obvious improvement. Based on the experimental research,the strength mode of timber columns strengthened with CFRP strip was proposed,and the effective confined coefficient k1 was linearly regressed. Strengthened timber column with CFRP is a valid method,and it can be used for strengthening of timber structures.
- CFRP /
- timber column /
- strengthen /
- performance /
- load-bearing capacity /
- ductility

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参考文献(11)

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