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钢筋混凝土简支梁新型损伤检测指标

发表时间:2011-01-31  浏览量:1842  下载量:618
全部作者: 周海霞,闫维明,王卓
作者单位: 北京工业大学工程抗震与结构诊治北京市重点实验室;中央广播电视大学工学院
摘 要: 针对常见的钢筋混凝土简支梁结构进行研究,利用静力加载试验模拟简支梁的损伤累积过程,通过突加荷载试验收集简支梁的自由振动信号,分析阻尼参数的变化机理,对已有研究结果进行论证,并进一步提出一种基于阻尼特征的损伤识别指标,为钢筋混凝土简支梁的快速、无损检测和监测提供有实际应用价值的参考。
关 键 词: 混凝土与钢筋混凝土结构;损伤识别;振动测试;阻尼特性;新损伤指标β
Title: A new damage detection index of reinforced concrete simple beam
Author: ZHOU Haixia, YAN Weiming, WANG Zhuo
Organization: Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology; Faculty of Engineering, China Central Radio & TV University
Abstract: This paper is about the study of the common reinforced concrete simple beam. The experiment uses static loading test to simulate simple beam damage accumulative process, collects simple beam's free vibration signal from the shock load experiment, and analyzes the change mechanisms of damping parameters. The paper demonstrates the existing theory according to the experiment results and proposes a new theory of damage identification based on the damping characteristic. The investigation provides valuable references for the fast and non-destructive identification of reinforced concrete simple beams.
Key words: concrete and reinforced concrete structure; damage identification; vibration testing; damping characteristics; new damage index β
发表期数: 2011年1月第2期
引用格式: 周海霞,闫维明,王卓. 钢筋混凝土简支梁新型损伤检测指标[J]. 中国科技论文在线精品论文,2011,4(2):149-154.
 
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