Bridge health monitoring: the Davtashen bridge example in Yerevan

摘要

AcceloAl system was developed by NUACA Chair of Roads and Bridges for the purpose of frequency-based bridges monitoring. The system allows measuring accelerations and determining the frequency of vibrations in real time, at four points of the bridge span simultaneously. The system provides the capability of making measurements both at the pier and the span. AcceloAl system has been used for monitoring of vibration frequency in the superstructure of Davtashen Bridge in Yerevan (Armenia). Davtashen Bridge has been chosen as a model for creating a Bridge Monitoring system for large bridges in Armenia. The results of the system usage and the analysis of measurements over the last years are presented in this paper.