1) Would you please telling me what kind of material of bridge you are mentioning? 15 years ago, I used accelerometers to measure vibration of truss bridge and two 24,7m span prestressed RC bridges for health assessment of those bridges.
2) Why dont you care about velocity signals, sir ?
1) I am interested in vibration responses of prestressed RC bridges. I am developing a method for system identification under transient loading such as sparse traffic, which has been tested only with simulated data. It would be very helpful testing the method with real data. If you can send me your acceleration records, you will be gratefully acknowledged in my future publications.
2) I understand that acceleration signals are the easiest to get. However it is quite evident that displacement-related signals (strain, curvature, etc.) are more efficient to locate damage. I have not read articles about the benefits of velocity signals in SHM, though it seems interesting ¿Do you have any interesting document about this?
The SMC of the Harbin Institute of Technology offers data for their structural health monitoring benchmark problem of a 500m suspension bridge: http://smc.hit.edu.cn/ (periodically offline in the last couple of days)
Also, I went to link of 500m suspension bridge: http://smc.hit.edu.cn/ , unfortunately, I cannot find data of this bridge. If anybody knows how to access the data or other data on sea-crossing bridge, could you please share with me?