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Keywords: short-span bridges, medium-span bridges, public bus, condition assessment, vibration, structural health monitoring, field test, practical application, characteristic deflection, information technology..

Summary

Bridge health monitoring using information technology and sensors is capable of providing more accurate knowledge of bridge performance than traditional strategies. In this paper, a new condition assessment method for existing short- and medium-span reinforced or prestressed concrete bridges is proposed based on vibration monitoring data obtained from a public bus. This paper not only describes details of a prototype monitoring system that uses information technology and sensors capable of providing more accurate knowledge of bridge performance than conventional ways but also shows specific examples of bridge condition assessment based on vehicle vibrations measured by using an in-service public bus equipped with vibration measurement instrumentation. This paper also describes a sensitivity analysis of deteriorating bridges based on simulation of the acceleration response of buses conducted by the "substructure method" employing a finite element model to verify the above bridge performance results. The main conclusions obtained in this study can be summarized as follows: (1) Because the vibration responses of passenger vehicles, such as buses, have a good linear relationship with the vibration responses of the target bridges, the proposed system can be used as a practical monitoring system for bridge condition assessment. (2) The results of sensitivity analysis performed by the substructure method show that bus vibration responses are useful for evaluating target bridge performance. (3) The proposed method was applied to a network of real bridges in a local area to evaluate its effectiveness. The results indicate that the proposed method can be used to prioritize the repair or strengthening works of existing bridges based on various vibration information in order to help bridge administrators establish rational maintenance strategies.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 94 Development of a Bus Monitoring System for Long Term Health Monitoring of Short- and Medium-Span Bridges A. Miyamoto and H. Emoto Graduate School of Science and Engineering, Yamaguchi University, Japan doi:10.4203/ccp.106.94 purchase the full-text of this paper Full Bibliographic Reference for this paper A. Miyamoto, H. Emoto, "Development of a Bus Monitoring System for Long Term Health Monitoring of Short- and Medium-Span Bridges", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 94, 2014. doi:10.4203/ccp.106.94 Keywords: short-span bridges, medium-span bridges, public bus, condition assessment, vibration, structural health monitoring, field test, practical application, characteristic deflection, information technology.. Summary Bridge health monitoring using information technology and sensors is capable of providing more accurate knowledge of bridge performance than traditional strategies. In this paper, a new condition assessment method for existing short- and medium-span reinforced or prestressed concrete bridges is proposed based on vibration monitoring data obtained from a public bus. This paper not only describes details of a prototype monitoring system that uses information technology and sensors capable of providing more accurate knowledge of bridge performance than conventional ways but also shows specific examples of bridge condition assessment based on vehicle vibrations measured by using an in-service public bus equipped with vibration measurement instrumentation. This paper also describes a sensitivity analysis of deteriorating bridges based on simulation of the acceleration response of buses conducted by the "substructure method" employing a finite element model to verify the above bridge performance results. The main conclusions obtained in this study can be summarized as follows: (1) Because the vibration responses of passenger vehicles, such as buses, have a good linear relationship with the vibration responses of the target bridges, the proposed system can be used as a practical monitoring system for bridge condition assessment. (2) The results of sensitivity analysis performed by the substructure method show that bus vibration responses are useful for evaluating target bridge performance. (3) The proposed method was applied to a network of real bridges in a local area to evaluate its effectiveness. The results indicate that the proposed method can be used to prioritize the repair or strengthening works of existing bridges based on various vibration information in order to help bridge administrators establish rational maintenance strategies. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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