摘要
通过8根CFRP加固旧木柱的试验，重点研究了CFRP形式、层数对加固旧木柱受力性能的影响。研究结果表明，粘贴CFRP布加固的旧木柱受压承载力提高9．2％～26．6％，延性性能也得到明显改善。采用角钢加固并用CFRP包裹后木柱的受压承载力提高68．0％。CFRP加固旧木柱能显著提高其受压承载力和延性，可应用于木结构维修加固的工程实践：
Eight old timber columns strengthened with CFRP strips are tested in the paper and effective factors such as layout and layer of CFRP strips are studied. The ultimate load-bearing capacities of old timber columns reinforced with CFRP have 9.2% - 26.6% increases over the control specimen, and the ductility performance also has a significant betterment. The ultimate load-bearing capacities of old timber column strengthened with angle steel and confined by CFRP strip has 68.0% increases over the control specimen. Strengthened old timber column with CFRP is an effective method, and it can be used for strengthening timber structures.
出处
《工程抗震与加固改造》
北大核心
2009年第4期55-59,65,共6页
Earthquake Resistant Engineering and Retrofitting
基金
国家科技支撑计划(2006BAJ03A10)
上海市科委青年科技启明星计划(07QB14031)
关键词
碳纤维
旧木柱
加固
性能
承载力
延性
CFRP
old timber column
strengthen
performance
load-bearing capacity
ductility
