摘要
碳纤维增强水泥 ( CFRC)既具有很好的变形 -电阻敏感性 (压敏效应 ) ,又具有很好的温度 -电阻敏感性 (温敏效应 ) ,这两种效应耦合在一起 ,给精确测试带来很大的困难 .文中根据构件各部位的应力应变状况及 CFRC的功能特性 ,有选择地敷设 CFRC,采用直流探针压降法测试 ,成功地实现了压敏性和温敏性两种效应的解耦 .
Carbon fiber reinforced cement (CFRC) not only possesses superior deformation-resistance sensitivity (compression-sensitivity),but also possesses superior temperature-resistance sensitivity (temperature-sensitivity). The coupling of the two effects makes accurate measure very difficult. In this paper,according to the stress-strain condition at different parts and the function character of CFRC,CFRC is laid selectively and method of DC probe's pressure descending is employed. And finally,the decoupling of compression-sensitivity and temperature-sensitivity is attained successfully. This approach is verified theoretically and experimentally which provides some new ideas for further investigation of smart concrete structures.
出处
《武汉理工大学学报（交通科学与工程版）》
北大核心
2004年第4期533-535,549,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
基金
国家自然科学基金重点项目资助 (批准号 :5 0 2 3 80 40 )
关键词
碳纤维增强水泥
压敏效应
温敏效应
解耦
carbon fiber reinforced cement
compression-sensitivity
temperature-sensitivity
decoupling
