Monitoring and Evaluation on Girder Alignment of Suspension Bridge Based on MATLAB

In order to find out a new way to get the principles of the main girder alignment long-term changes and estimate the technology level, the main girder alignment variation was monitored by the real time monitoring system. Then the monitoring data was analyzed depend on the assessment theories which based on the statistical characteristics of the monitoring data. For the large amount of collection data, the convenient of monitoring data and fast processing could be realized by using the Matlab programming software. The analysis results show that the assessment theories can well realize the girder alignment evaluation; the main girder in the monitoring period shows a small alignment changes, girder technology level is in a good condition.