CFRP加固开裂短木柱性能的试验研究  

Experimental research on short cracked timber columns strengthened with CFRP

作　　者：朱雷[1,2] 许清风[1,2] 戴广海[1,2] 贡春成[1] 

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

出　　处：《建筑结构》2009年第11期101-103,共3页Building Structure

基　　金：上海市科委青年科技启明星计划(07QB14031);国家科技支撑计划(2006BAJ03A10-02)资助

摘　　要：通过12根短木柱试件的试验研究,了解开裂、CFRP层数等对短木柱受力性能的影响。研究结果表明,开裂短木柱的承载力和极限位移均有明显降低;粘贴CFRP后,开裂短木柱的承载力和延性系数均有明显提高。通过粘贴CFRP不仅可明显改善开裂短木柱的受力性能,还可适当放宽对木柱材质等级的限制,增加木材的利用率。Twelve short timber columns were tested. The effective factors of crack and strengthened with CFRP on performance were studied. The load-bearing capacity and ultimate displacement of short cracked timber column have an obvious decrease. When it was strengthened with CFRP, its load-bearing capacity and ductile index have a big increase. Strengthened cracked timber column with CFRP will not only improve the performance of timber structure, but also loosen the request of wood for column according to the code and increase the rate of usage of wood.

关 键 词：碳纤维 短木柱 裂缝 性能 承载力 加固 

分 类 号：TU377[建筑科学—结构工程] O625[理学—有机化学]