外包碳纤维增强高强混凝土柱的研究趋势  

Trend of research on high strength concrete column enwrapped by continuous carbon fiber sheet

作　　者：王震宇[1] 白东宁 袁杰[3] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090 [2]广东省珠海市和记黄埔地产珠海有限公司,广东珠海519080 [3]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150006

出　　处：《混凝土》2005年第1期16-19,共4页Concrete

摘　　要：　针对外包碳纤维改善高强混凝土柱抗震性能的问题,提出可以充分利用碳纤维复合材料的力学性能和感知特性,发展新型的具有损伤自监测功能的外包碳纤维机敏高强混凝土柱组合构件;通过研究环氧树脂基碳纤维应力-应变-电阻的损伤自监测特性,不仅可以揭示外包碳纤维对核心高强混凝土的增强机理,还可以进一步建立震后构件的安全评定方法和标准;通过上述研究,对高强混凝土结构抗震和震后定量安全评定提供了新理论和新方法,为发展机敏高强混凝土结构提供一条崭新的途径。The carbon fiber sheet not only can be used to improve seismic performance of high strength concrete (HSC) column with its superior mechanical properties,but also can be used to develop a new HSC composite member by using its intelligent property of self-monitoring damage.First,the relationship between strain,stress,and electrical conductibility of carbon fiber sheet with epoxy resin should be experimentally studied and theoretically analyzed.Based on the intelligent property of carbon fiber sheet,the enhanced mechanics to core concrete and the safety evaluation standard of the composite member after seismic could be established.From previous researches,a new method to evaluate safety of HSC structure after seismic and a path to develop smart HSC structure could be applied.

关 键 词：碳纤维 高强混凝土 损伤监测 安全评定 

分 类 号：TU528.572[建筑科学—建筑技术科学]