Damage identification of non-dispersible underwater concrete columns under compression using impedance technique and stress-wave propagation

IF 3.6 2区 工程技术 Q1 ENGINEERING, CIVIL Journal of Civil Structural Health Monitoring Pub Date : 2024-05-14 DOI:10.1007/s13349-024-00802-z
Shenglan Ma, Shurong Ren, Chen Wu, Shaofei Jiang, Weijie Huang
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Abstract

Current scouring effects and additives increase the risk of failure in underwater structures, and poor observation complicates the identification and assessment of damage. We present a novel index for assessing non-dispersible underwater concrete columns using stress-wave and impedance. A piezoelectric lead zirconate titanate sensor was used to monitor the compression process of non-dispersible underwater concrete columns and ascertain the extent of damage. The proposed index divides the damage process into initial compaction, elastic deformation, and crack development and failure stages. Additionally, the proposed method quantifies and identifies damage, producing results that agree with those for the axial compression failure characteristics.

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利用阻抗技术和应力波传播识别受压非分散水下混凝土柱的损伤
水流冲刷效应和添加剂增加了水下结构失效的风险,而观察不力则使损坏的识别和评估变得更加复杂。我们提出了一种利用应力波和阻抗评估非分散水下混凝土柱的新指标。我们使用压电式锆钛酸铅传感器监测非分散性水下混凝土柱的压缩过程,并确定损坏程度。所提出的指标将破坏过程分为初始压实、弹性变形、裂缝发展和破坏阶段。此外,建议的方法还能量化和识别损坏,其结果与轴向压缩破坏特征的结果一致。
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来源期刊
Journal of Civil Structural Health Monitoring
Journal of Civil Structural Health Monitoring Engineering-Safety, Risk, Reliability and Quality
CiteScore
8.10
自引率
11.40%
发文量
105
期刊介绍: The Journal of Civil Structural Health Monitoring (JCSHM) publishes articles to advance the understanding and the application of health monitoring methods for the condition assessment and management of civil infrastructure systems. JCSHM serves as a focal point for sharing knowledge and experience in technologies impacting the discipline of Civionics and Civil Structural Health Monitoring, especially in terms of load capacity ratings and service life estimation.
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