| Many Large-scale engineering structure have potential safety hazard to some extent both at home and abroad. Large-scale engineering structure's health monitoring system plays an important part in people's safety and nation's economic construction. Structural health monitoring system commonly monitors structure's flexibility,wind speed, temperature,strain,and so on. Strain monitoring is very important in structural health monitoring system.By analyse structure's strain,We can gain lots of information including the danger cross section and fatigue level.Also we can estimate the structure's life. Because of the importance of strain monitoring,this article aims engineering structure's strain monitoring. Most of existing structural health monitoring system need a modern monitoring center near the structure. To solve this problem,a scheme is introduced in this article that we can use web technology based on internet in structural health monitoring system to realize remote monitoring of the structure's strain. This article suppose the second bridge of nanjing Yangtse river as the monitored engineering structure. The author designed and realized the bridge's strain monitoring system of main girder. The author's job includes three main part: designed the scheme of the remote strain monitoring system,designed the hardware scheme of the system,designed and realized the strain monitoring software. To validate the practicability and stability of the software,the author used the software to make more than one device inform a remote strain monitoring network.The experiment validate the software has excellent practicability.It can be used in engineering structure's remote monitoring.Also this software has excellent stability.It can fill the Structural health monitoring's requirement. |
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