Design And Implementation Of Structural Health Monitoring System For Aixi Lake Bridge

With the continuous development of China's infrastructure construction,the construction of bridges across the country has gradually improved,and the structural health of bridges directly affects the service life of bridges and road traffic,and has a profound impact on regional economy and people's lives.During the construction of the bridge,there may be deficiencies and imperfections in design and construction,and after being put into use in the future,it will also be affected by the natural environment and pedestrians from passing vehicles,and the bridge body will inevitably be worn,which will threaten people's lives and property.Due to the peculiar structure of the bridge body,the damage of the bridge structure cannot be easily detected and dealt with by professional maintenance personnel in time.Therefore,structural health monitoring of the bridge seems very necessary and significant.In bridge structural health monitoring,in order to be able to comprehensively and reliably grasp the structure information of the bridge body,multiple indicators of the bridge need to be monitored.A single sensor is no longer capable of this task,and the traditional wired bridge structural health monitoring system is complex and costly to deploy.It is expensive and cannot meet the requirements of timely and accurate monitoring of bridges.Therefore,in order to solve these problems and according to the actual application requirements,this paper designs and implements a set of structural health monitoring system based on the Internet of Things for Aixihu Bridge in Nanchang.The main tasks are as follows:1.In order to meet the requirements for comprehensive monitoring of the Aixi Lake Bridge,in combination with the actual situation of the bridge,design a suitable IoT platform to implement the data acquisition and transmission system of the Aixi Lake Bridge,and develop the Aixi Lake Bridge acquisition software based on the Swing framework for data reception and storage.2.For the data collection and transmission system and monitoring platform with a large amount of data and complex relationships,analyze the data object attributes and the relationship between the objects,and carry out detailed database design for the bridge structure data and the monitoring platform data.3.In order to allow bridge managers to have more information about the structure of the Aixi Lake Bridge,the Aixi Lake monitoring platform based on the B/S architecture and SSM framework was developed and designed,and detailed functions such as structure monitoring,threshold alarms,and data reporting were introduced.After system test and verification,the system can monitor the health status of the bridge in real time and without interruption for 24 hours without the need for staff to be on duty 24 hours a day.Through.the visual interface of the bridge monitoring platform,the specific monitoring indicators can be viewed.Information to provide timely and effective guidance for the later maintenance of the Aixi Lake Bridge.