Analysis of 3D Motion Data from Shaking Table Tests on a Scaled Model of Hagia Irene, Istanbul

Abstract:

The present paper focuses on the use of a 3D motion capture system for the dynamic identification and the damage monitoring of a 1:10 scaled mock-up (representing the large historic masonry structure of Hagia Irene, Istanbul) tested on shaking table at the ENEA Casaccia Research Center located near Rome, Italy. The dynamic identification of the structure during the shaking table tests was obtained by several techniques of Experimental Modal Analysis (EMA), such as FRF, FDD and EFDD. To such purpose Displacement Data Processing (DDP) of a large number of markers of the 3DVision (the passive 3D motion capture system installed at the ENEA laboratory) was performed. Markers were located on the tested mock-up accordingly to the indications of preliminary FEM analysis and modal shapes. Also conventional accelerometers were placed on the physical model and used as reference for the analysis of 3DVision data. In addition, the analysis of Markers Relative Displacements (MRDs) was useful to detect the occurrence and development of fractures during the tests, contributing to assessing the actual progress of the structural damage. The results from EMA techniques and MRDs analysis of 3DVision data are illustrated, showing the potentialities of this monitoring system in integrating the two complementary approaches.

• Periodical: Key Engineering Materials (Volume 624)
• Pages: 66-73
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.624.66
• Online since: September 2014
• Authors: Ivan Roselli*, Marialuisa Mongelli, Angelo Tatì, Gerardo de Canio
• Keywords: 3D Motion Capture, Damage Monitoring, Dynamic Identification, Shaking Table

References

[1] G. Croci, A. Viskovic, A. Herzalla, M. Erdik M. Akdogan, G. De Canio, L. Antonelli, Seismic assessment by numerical analyses and shaking table tests for complex masonry structures: The Hagia Irene case study, Advanced Materials Research, 133-134 (2010).

DOI: 10.4028/www.scientific.net/amr.133-134.777

[2] G. De Canio, M. Mongelli, I. Roselli, 3D Motion Capture Application to Seismic Tests at ENEA Casaccia Research Center: 3DVision System and DySCo Virtual Lab, WIT Transactions on The Built Environment, 134 (2013) 803-814.

DOI: 10.2495/safe130711

[3] Information on http: /www. afs. enea. it/project/dysco.

[4] G. Croci, A. Viskovic, A. Herzalla, G. De Canio, M. Erdik, M. Mongelli, I. Roselli, Large masonry models study implementing shaking table tests: Hagia Irene case study. Part II: actions, energy evaluations, dynamic behaviour, 3rd Euro Mediterranean Symposium On Advances in Geomaterial and Structures (AGS'10), 10-12 May, Djerba, Tunisia, (2010).

DOI: 10.4028/www.scientific.net/amr.133-134.777

[5] B. Schwarz, M. Richardson, Post-Processing Ambient And Forced Response Bridge Data To Obtain Modal Parameters, 19th IMAC, International Modal Analysis Conference - Future Directions in Structural Dynamics, Kissimmee, Florida, USA, (2001).

[6] P. Andersen, M. Basseville, R. Brincker, L. Mevel, C. E. Ventura and W. Zhou, Seismic Damage Assessment in Structures Using Stochastic Subspace-Based Algorithm, ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, Rethymno, Crete, Greece, (2007).

[7] G. De Canio, P. Andersen, I. Roselli, M. Mongelli, E. Esposito, Displacement Based Approach for a Robust Operational Modal Analysis, 29th IMAC, a Conference on Structural Dynamics, 31 January – 3 February, Jacksonville, Florida, USA, (2011).

DOI: 10.1007/978-1-4419-9507-0_19

[8] S. Gade, N. Møller, H. Herlufsen, H. Konstantin-Hansen, Frequency Domain Techniques for Operational Modal Analysis, IOMAC Conference, Copenhagen, Denmark, (2005).

[9] G. R. Irwin, J.A. Kies, Welding J. Res. Suppl., 33 (1954), (1935).