1. Department of Civil Engineering and Architecture, University of Pavia, Via Ferrata 3, Pavia 27100, Italy e-mail:
2. Department of Electrical, Computer, and Biomedical Engineering, University of Pavia, Via Ferrata 5, Pavia 27100, Italy e-mail:
3. Professor Department of Civil Engineering and Architecture, University of Pavia, Via Ferrata 3, Pavia 27100, Italy e-mail: