Recommendation of RILEM TC 269-IAM: damage assessment in consideration of repair/retrofit-recovery in concrete and masonry structures by means of innovative NDT

IF 3.4 3区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY

Materials and Structures Pub Date : 2025-01-20 DOI:10.1617/s11527-024-02525-5

Tomoki Shiotani, Kazuo Watabe, RILEM Technical Committee

引用次数: 0

Abstract

This recommendation specifies a method for measuring active elastic waves and assessing damage to concrete members such as decks and girders. The method uses elastic waves propagating inside the concrete member. Elastic waves generated near a surface of the concrete member are detected by acoustic emission sensors installed on the opposite side of the member. Elastic waves propagating in concrete are attenuated or diffracted by damage such as cracks and voids, resulting in fewer AE sources than that of intact areas. Thus, it is possible to distinguish a damaged region from others with density of the observed AE source distribution.

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RILEM TC 269-IAM建议：采用创新无损检测方法对混凝土和砖石结构的修复/改造-恢复进行损害评估

本建议规定了一种测量主动弹性波和评估混凝土构件（如甲板和大梁）损伤的方法。该方法利用弹性波在混凝土构件内部传播。在混凝土构件表面附近产生的弹性波由安装在构件对面的声发射传感器检测。在混凝土中传播的弹性波被裂缝和空洞等损伤衰减或衍射，导致声发射源比完整区域少。因此，可以用观测到的声发射源分布密度来区分受损区域和其他区域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials and Structures 工程技术-材料科学：综合

CiteScore

6.40

自引率

7.90%

发文量

222

审稿时长

5.9 months

期刊介绍： Materials and Structures, the flagship publication of the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), provides a unique international and interdisciplinary forum for new research findings on the performance of construction materials. A leader in cutting-edge research, the journal is dedicated to the publication of high quality papers examining the fundamental properties of building materials, their characterization and processing techniques, modeling, standardization of test methods, and the application of research results in building and civil engineering. Materials and Structures also publishes comprehensive reports prepared by the RILEM’s technical committees.