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.
出处
《混凝土》
CAS
CSCD
北大核心
2005年第1期16-19,共4页
Concrete
关键词
碳纤维
高强混凝土
损伤监测
安全评定
carbon fiber
high strength concrete
monitoring damage
safety evaluation
