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The Engineering Design and Realization of State Parameters Monitoring System for Dafosi Yangtse River Bridge

Author: YangJianChun
Tutor: ChenWeiMin
School: Chongqing University
Course: Instrumentation Engineering
Keywords: Parameters monitoring Engineering design and implementation Sensor System Dafosi Yangtze River Bridge
CLC: U441
Type: Master's thesis
Year: 2004
Downloads: 176
Quote: 5
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Abstract


With the bridge safety monitoring continuously to automation, intelligent direction, the traditional manual testing methods can not meet the long-term safety monitoring requirements bridges, which have to achieve automatic, long-term, real-time, remote monitoring systems will play an increasing more important role. Yangtze River Bridge is the largest Buddhist temple of the top ten large bridge, one of the security status by engineering and academia widespread attention, so it is important for security monitoring. Based on this, the Ministry of Transportation launched the Western scientific and technological project \implementation is an important part of the project. Since the project is an innovative project, the system is involved in engineering design and realization obviously also a new method. In order to carry out the design and implementation of systems engineering work, the structure of the system and the bridge became an organic whole, which requires the design and implementation of the project involved technologies, processes, methods, etc. issues. Engineering design and realization of this link theory is not strong, and focus on engineering practice and methods, technical studies, project implementation monitoring system is weak, there is no cause everyone's attention in the bridge monitoring is almost empty. Therefore, to meet the large Buddhist temple Yangtze River Bridge Automatic Monitoring System engineering design and implementation study is necessary. This paper outlines the importance of the bridge structural health monitoring, and then discusses the Yangtze River Bridge Dafosi significance of condition monitoring, elaborated systems engineering design and implementation of the largest Buddhist temple in the Yangtze River Bridge structural state parameter monitoring system, an important position in this based on the proposed content of the research projects. To complete the system design and implementation, must-depth analysis of the bridge construction, the hardware system distribution and characteristics of the system in order for the system provide the basis for engineering design and implementation. Main characteristics of the system, including optical fiber strain, optical deflection, the three types of digital temperature sensors sensor systems and on-site monitoring room involves hardware devices characterization. Focus on these three sensor system works. Explores the buried fiber optic strain sensor technology research, focusing on improved technology of buried metal protective seat. Respectively, for the bridge structure parameters monitoring fiber strain, optical deflection, the three types of digital temperature sensors sensor systems and on-site monitoring chamber engineering design and implementation work. These include various types of sensors embedded site / installation process, wiring / piping technology, fiber optic strain sensor wire, lead wire, cable and other on-site construction processes. In order to verify the design and implementation of systems engineering effectiveness, rationality, on-site assessment of the system has been running, draw the corresponding monitoring results show that is integrated in the structure of the sensor is capable of accurate, reliable and truly obtain valid data, the sensor survival basically consistent with the original vision; prove the complete design and engineering solutions and implementation methods used are reasonable.

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CLC: > Transportation > Road transport > Bridges and Culverts > Structural principles, structural mechanics
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