山东农业大学学报（自然科学版）2018，Vol.49Issue(2)：230-234,5.DOI:10.3969/j.issn.1000-2324.2018.02.009
基于冲击弹性波的钢筋混凝土梁损伤识别
Damage Identification for Reinforced Concrete Beam Based on Impact Elastic Wave
摘要
Abstract
To realize the fast damage identification for reinforced concrete beam, based on the widely applied vibration testing technology, combined with the impact elastic wave detection technology, static force was carried out to load the characteristics of strain cloud picture and unfold crack in a whole construction with non-contact strain displacement video measurement and analysis system,Then carried out the dynamic excitation and the dynamic damage identification of the test beams was carried out by the impact elastic wave propagation rule in different stages of the test.The results indicated that compared with the intact test beam,the impact wave signal was obviously different when the beam came out the crack,the time difference of the acceleration peak was obviously increasing and the & injury time difference & was put forward to identify damage location and size.Therefore,the rapid dynamic evaluation of reinforced concrete beam could be realized.关键词
钢筋混凝土梁/损伤识别/动力评价Key words
Reinforced concrete beam/damage identification/dynamic evaluation分类
交通工程引用本文复制引用
龙关旭,王涛,高贵杰,李志利,黄平明..基于冲击弹性波的钢筋混凝土梁损伤识别[J].山东农业大学学报（自然科学版）,2018,49(2):230-234,5.基金项目
中央高校基本科研业务费资助项目(310821173401) （310821173401）
