摘要
为了得到钢筋混凝土梁在弯曲破坏时声发射能量特征,对钢筋混凝土梁进行了弯曲破坏实验,捕捉实时能量特征。加载方式分为直接加载至破坏和分段加载至破坏两种方式。通过分析捕获的实时声发射信号能量信息以及整个加载阶段钢筋混凝土梁的能量释放特征,对钢筋混凝土梁的损伤断裂进行了预示。加载之前进行了断铅实验,进行了能量辅助定位,并获得了较好的精度。
To get the real-time energy characteristics of acoustic emission signals,bending failure experiments of the reinforced concrete beams were carried out. The loading methods consist of direct loading and segment loading. By analyzing the the real-time energychara cteristics of acoustic emission signal of the reinforced concrete beams during the entire period,the damage and fractureof reinforced concrete beams wereind icated. The lead-of fexperiments before loading was conducted,doing energy-assisted location,which is more accurate.
出处
《科学技术与工程》
北大核心
2015年第6期246-249,共4页
Science Technology and Engineering
基金
河南省交通运输厅科技项目(2012P43)
江苏大学高级人才专项(1281480004)资助
关键词
钢筋混凝土梁
声发射
能量
定位
the reinforced concrete beams
acoustic emission
energy characteristics
location