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应用声发射技术的钢筋与混凝土粘结滑移特性研究
引用本文:骆英,于长煦,顾爱军.应用声发射技术的钢筋与混凝土粘结滑移特性研究[J].实验力学,2011,26(4):343-349.
作者姓名:骆英  于长煦  顾爱军
作者单位:江苏大学机械工业机械结构损伤检测评估技术重点实验室,镇江,212013
基金项目:国家高技术研究发展计划(863计划)项目(2009AA03Z107); 国家自然科学基金资助项目(50875114)
摘    要:为研究钢筋与混凝土间的粘结滑移特性,分别对不同粘结长度的钢筋混凝土试件进行了拉拔试验,同时对粘结长度相同而钢筋外形不同的试件进行了比较试验.利用声发射技术采集相应波形信号,并对采集信号进行了小波去噪和Gabor小波时频分析.结果显示,各试件受力全过程均可分为完全粘结、局部脱粘、非线性滑移及残余粘结四个阶段;不同粘结长度...

关 键 词:声发射技术  粘结滑移  钢筋混凝土  小波分析

Study of the Bond-Slip Behavior between Rebar and Concrete Based on Acoustic Emission Technology
LUO Ying,YU Chang-xu and GU Ai-jun.Study of the Bond-Slip Behavior between Rebar and Concrete Based on Acoustic Emission Technology[J].Journal of Experimental Mechanics,2011,26(4):343-349.
Authors:LUO Ying  YU Chang-xu and GU Ai-jun
Institution:LUO Ying,YU Chang-xu,GU Ai-jun(Key Laboratory for Mechanical Structure Damage Detection Technology of China Machinery Industry Federation,Jiangsu University,Zhenjiang 212013,China)
Abstract:In order to study the bond-slip characteristics between rebar and concrete,pull-out experiment was carried out for reinforced concrete specimens with different bond length,meanwhile,pull-out comparative experiment for specimens with the same bond length but different shapes of embedding reinforcing steel bar was also carried out.Corresponding waveform signals were collected by using acoustic emission technology,and then wavelet denoising and Gabor wavelet time-frequency analysis were carried out for the acq...
Keywords:acoustic emission technology  bond-slip  reinforced concrete  wavelet analysis  
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