EXPERIMENTAL RESEARCH ON AXIAL COMPRESSIVE BEHAVIORS FOR TIMBER COLUMN STRENGTHENED WITH CFRP
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摘要: 采用碳纤维布,对8组木柱(短柱)构件进行环向粘贴碳纤维布加固。通过试验考察了碳纤维布加固对木柱轴心抗压极限承载能力的提高效果;分析了碳纤维布加固木柱的破坏形态及荷载应变关系;通过各组试件试验结果的对比分析了碳纤维布的用量、布置形式对提高轴心抗压承载力的影响。Abstract: Eight groups of timber columns components reinforced by carbon fiber reinforced polymer(CFRP) with various enwrapping forms have been studied at laboratory.The enhancing effect of their axial compressive bearing capacity and the failure mode are investigated.Based on the data collected in the test,load -strain curves have been drawn and analysed.Finally,the influence of quantity,space and wide of CFRP on test result is discussed.
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Key words:
- timber column /
- CFRP /
- strengthening /
- axial compressive bearing capacity
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GB/T 50329-2002 木结构试验方法标准; [2] 赵彤,谢剑.碳纤维布补强加固混凝土结构新技术.天津:天津大学出版社,2001.1~26; [3] 张嘉琪,黄鼎业,等.FRP加固混凝土短柱的抗压强度.建筑材料学报,2000,3(4):323~327; [4] 马建勋,宋松林,赖志生.粘贴碳纤维布加固钢构件受拉承载力试验研究.工业建筑,2003,33(2):1~4; [5] 于清.FRP的特点及其在土木工程中的应用.哈尔滨建筑大学学报.2000,33(6):26~30; [6] 田水,朱暾.碳纤维布加固钢筋混凝土圆柱的试验研究.混凝土与水泥制品,2001,(3):35~37
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