Implementation of a Dynamic Monitoring System for an Butterfly Arch Footbridge

A new footbridge with butterfly arch was contructed at Peaking University (Shenzhen Campus). To investigate its long term dynamic behavior during operational condition, a continuous dynamic structural health monitoring system is implemented.

A Finite Element Model is developed based on both ANSYS and MIDAS software, which further is calibrated by a ambient vibration test. A dynamic monitoring system, consisting of 4 accelerometers in deck and arch, 7 strain gauge and 4 thermal sensors in deck, is developed in order to track the variation of long term dynamic properties. The accumulated huge amount monitoring data are processed automatlly and the long term dynamic behaviour is reported.

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