Damage Identification of Full-Scale Steel Truss Structure Based on Model Condensation and Mean-Value Normalization Regularization Techniques

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-04-08 DOI:10.1155/2024/5520052

Huihui Chen, Haidong Zhang, Xiaojing Yuan

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引用次数: 0

Abstract

Structural health monitoring and damage identification aim to detect the internal damage and evaluate the health conditions of the practical engineering structure, which has been the most popular research field for several decades. The sensitivity-based method incorporated with the regularization techniques is the classical and useful approach, and it can obtain accurate damage detection results. However, with the development of civil engineering structures, this classical method faces two problems: one is it is only applied to simple structures rather than full-scale structures, and second is the iterative calculation efficiency is lower. Therefore, aiming at these drawbacks, the two improvement strategies have been introduced to the original method for its enhancement in the application potential and computational efficiency. The proposed method has been verified based on two examples, i.e., a numerical steel truss with 144 elements and a full-scale experimental steel truss with 160 elements. The results prove that the proposed method has better efficiency and good application potential in the practical full-scale engineering structure.

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基于模型冷凝和均值归一化正则化技术的全尺度钢桁架结构损伤鉴定

结构健康监测和损伤识别旨在检测实际工程结构的内部损伤并评估其健康状况，几十年来一直是最热门的研究领域。基于灵敏度的方法与正则化技术相结合是一种经典而实用的方法，可以获得准确的损伤检测结果。然而，随着土木工程结构的发展，这种经典方法面临着两个问题：一是只适用于简单结构，而非全面结构；二是迭代计算效率较低。因此，针对这些缺点，我们在原有方法的基础上引入了两种改进策略，以提高其应用潜力和计算效率。基于两个实例，即包含 144 个元素的数值钢桁架和包含 160 个元素的全尺寸实验钢桁架，对所提出的方法进行了验证。结果证明，提出的方法在实际全尺寸工程结构中具有更好的效率和良好的应用潜力。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.