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

IF 1.5 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Advances in Civil Engineering Pub Date : 2024-04-08 DOI:10.1155/2024/5520052

Huihui Chen, Haidong Zhang, Xiaojing Yuan

{"title":"Damage Identification of Full-Scale Steel Truss Structure Based on Model Condensation and Mean-Value Normalization Regularization Techniques","authors":"Huihui Chen, Haidong Zhang, Xiaojing Yuan","doi":"10.1155/2024/5520052","DOIUrl":null,"url":null,"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.","PeriodicalId":7242,"journal":{"name":"Advances in Civil Engineering","volume":"1 1","pages":""},"PeriodicalIF":1.5000,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Civil Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1155/2024/5520052","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}

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.

查看原文本刊更多论文

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。

求助全文

约1分钟内获得全文求助全文

来源期刊

Advances in Civil Engineering Engineering-Civil and Structural Engineering

CiteScore

4.00

自引率

5.60%

发文量

612

审稿时长

15 weeks

期刊介绍： Advances in Civil Engineering publishes papers in all areas of civil engineering. The journal welcomes submissions across a range of disciplines, and publishes both theoretical and practical studies. Contributions from academia and from industry are equally encouraged. Subject areas include (but are by no means limited to): -Structural mechanics and engineering- Structural design and construction management- Structural analysis and computational mechanics- Construction technology and implementation- Construction materials design and engineering- Highway and transport engineering- Bridge and tunnel engineering- Municipal and urban engineering- Coastal, harbour and offshore engineering-- Geotechnical and earthquake engineering Engineering for water, waste, energy, and environmental applications- Hydraulic engineering and fluid mechanics- Surveying, monitoring, and control systems in construction- Health and safety in a civil engineering setting. Advances in Civil Engineering also publishes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.