CFRP加固旧木柱性能的试验研究  

Experimental Research on CFRP-Strengthened Old Timber Columns

作　　者：李向民[1,2] 许清风[1,2] 朱雷[1,2] 卢永锋 汤瑞忠 

机构地区：[1]上海市建筑科学研究院,上海200032 [2]上海市工程结构新技术重点实验室,上海200032 [3]上海城投永业置业发展有限公司,上海200021

出　　处：《工程抗震与加固改造》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)

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.

关 键 词：碳纤维 旧木柱 加固 性能 承载力 延性 

分 类 号：TU746.3[建筑科学—建筑技术科学] TU366.2