Structural Health Monitoring of transport infrastructures: preliminary experimental calibration of the numerical model of “Ponte della Musica – Armando Trovajoli”

Considering the high vulnerability of existing structures and infrastructures, mainly due to deterioration building materials, exposure cyclic seismic loads environmental factors, one main challenges recent years in field structural health monitoring is development systems capable integrating satellite data with on-site sensor measurements order obtain more reliable information on safety conditions for at different scales: from local territorial one. However, this enormous potential counteracted by some limitations common techniques used displacement along LOS (line Sight) that can lead loss case particular flexible as confirmed studies. The bridge "Ponte della Musica Armando-Trovajoli" Rome, made a steel arch underlying prestressed concrete deck, considered study work, represents an example which images do not allow useful displacement, least central deformable portion therefore also possible pathological movements. In attempt interpret phenomenon, paper focuses dynamic identification campaign carried out using ambient vibration measurements, suitably calibrate SAP2000 3D numerical model be successive evaluation thermal deformations better understand link between physiological limits techniques.