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Review and comparison of methods and benchmarks for automatic modal identification based on stabilization diagram

Journal of Traffic and Transportation Engineering(English Edition) 2024年第2期11卷 209-224页

作者： Min He Peng Liang Jiuxian Liu Zhiqiang Liang School of Architecture and Civil Engineering Xi'an University of Science and TechnologyXi'an 710064China School of Highway Chang'an UniversityXi'an 710064China

Automatic modal identification via automatically interpreting the stabilization diagram provides key technique in bridge structural health *** paper reviews the progress in the area of automatic modal identification based on interpreting the stabilization *** whole identification process is divided into four steps from establishing the stabilization diagram to removing the outliers in the identification *** criteria and algorithms used in each step in the existing studies are carefully summarized and *** between typical methods in cleaning and interpreting the stabilization diagram are also *** structure benchmarks used in the existing studies to validate the proposed automatic modal identification methods are also *** on the review and comparison,the specific ratio method for cleaning the stabilization diagram,the hierarchical clustering method for interpreting the stabilization diagram and the adjusted boxplot for removing the outliers in the identification results are the most suitable methods for each *** key point of automatic modal identification based on interpreting the stabilization diagram has also discussed,and it is recommended to pay more attention to cleaning the stabilization *** study about automatic modal identification under situation with very few sensors deployed should be more *** review aims to help researchers and practitioners in implementing existing automatic modal identification algorithms effectively and developing more suitable and practical methods for civil engineering structures in the future.

关键词： bridge structural health monitoring Automatic modal identification Stabilization diagram Eriteria and methods Real structure benchmarks

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Review and Prospect of Research on structural health monitoring Technology for bridges

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Journal of Architectural Research and Development 2024年第3期8卷 156-161页

作者： Guoyi Liu University of Glasgow Glasgow G128QQUK

As a crucial infrastructure in the transport system,the safe operation of bridges is directly related to all aspects of people’s daily *** development of bridge structural health monitoring technology and its application play an important role in ensuring the safety and extending the service life of *** paper carries out in-depth research and analysis on the related technology of bridge structural health ***,the existing monitoring technologies at home and abroad are sorted out,and the advantages and problems of various methods are compared and analyzed,including nondestructive testing,stress measurement,vibration characteristic identification,and other commonly used monitoring ***,the key technologies and equipment in the bridge health monitoring system,such as sensor technology,data acquisition,and processing technology,are introduced in ***,the development trend in the field of bridge health monitoring is prospected from both theoretical research and technical *** the future,with the development of emerging technologies such as big data,cloud computing,and the Internet of Things,it is expected that bridge health monitoring with intelligent and systematic features will be more widely applied to provide a stronger guarantee for the safe and efficient operation of bridges.

关键词： bridge structural health monitoring Safe operation monitoring technology

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