Performance Evaluation of Truss Structure via Cloud Matter Element Fusion
Publication: Journal of Performance of Constructed Facilities
Volume 36, Issue 2
Abstract
The performance evaluation of truss bridges is very difficult owing to their complex structure and numerous components. This paper develops an evaluation framework for truss structures using the internet of things (IOT) technique and proposes a novel methodology to increase evaluation accuracy based on cloud matter element fusion (CMEF). An experiment was carried out on a laboratory truss that was equipped with monitoring devices. Then the monitoring system, data storage module, and loading equipment were connected by IOT and then transmitted to the data processing module to carry out real-time evaluation. Furthermore, in the data processing module, the cloud matter element can effectively integrate multiple evaluation features into a global evaluation system, and the randomness contained in the monitoring data and the fuzziness inherent in the evaluation process can be considered synthetically by the cloud models established in this study. Then these evaluation features with their respective weights are fused by evidence fusion, so as to obtain the final performance of the experimental truss. The results have indicated that the evaluation accuracy can be obviously increased from 46.1% to 99.5% by the proposed methodology. The proposed method in this study provides an illustration of an effective evaluation for the truss structure.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are proprietary or confidential in nature and may only be provided with restrictions.
Acknowledgments
The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (51474048) and the Fundamental Research Funds for the Central Universities (Grant No. N170104024). This research was also supported by the Open Projects Foundation (BHSKL20-03-GF) of the State Key Laboratory for Health and Safety of Bridge Structures.
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Journal of Performance of Constructed Facilities
Volume 36 • Issue 2 • April 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Aug 19, 2021
Accepted: Dec 8, 2021
Published online: Jan 27, 2022
Published in print: Apr 1, 2022
Discussion open until: Jun 27, 2022
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