Damage detection via modal analysis of masonry structures using shaking table tests

The influence of the natural hydraulic lime-based grout on the dynamic behaviour of injected multi-leaf stone masonry elements is discussed in the paper. Shaking table experiments on two stone masonry buildings, tested before and after grout injection, have been performed. The paper focuses on the analysis of both the recorded accelerations and related displacements, at the bottom and at each further storey. This leads to evaluate the stiffness of the unstrengthened and injected structures. The input at increasing PGA allowed the stiffness decay to be studied, simulating a gradual damaging of the structures. These results were also interpreted in the light of both computed frequencies and mode shapes. Finally, the comparison among these results, obtained from all the models, allows to deepen the knowledge concerning the effects induced by the lime-based grout injection and on its capability to modify the dynamic behaviour, when intervening on a damaged (repairing) or on an undamaged (strengthening) structure.

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PROCESSING OF 3D OPTICAL MOTION DATA OF SHAKING TABLE TESTS: FILTERING OPTIMIZATION AND MODAL ANALYSIS

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2015) ◽

10.7712/120117.5714.18115 ◽

2017 ◽

Cited By ~ 1

Author(s):

Ivan Roselli ◽

Daniela Paolini ◽

Marialuisa Mongelli ◽

Gerardo De Canio ◽

Gianmarco de Felice

Keyword(s):

Modal Analysis ◽

Shaking Table ◽

Shaking Table Tests ◽

Motion Data ◽

Optical Motion

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Damage Detection of RC Columns in Shaking Table Tests by Singularity Analysis of Their Acceleration Responses

IABSE Symposium Report ◽

10.2749/222137814814069642 ◽

2014 ◽

Vol 102 (7) ◽

pp. 2916-2923

Author(s):

Tsukasa Mizutani ◽

Takahiro Hida ◽

Yozo Fujino

Keyword(s):

Damage Detection ◽

Singularity Analysis ◽

Shaking Table ◽

Shaking Table Tests ◽

Rc Columns

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Seismic Assessment by Numerical Analyses and Shaking Table Tests for Complex Masonry Structures: The Hagia Irene Case Study

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.133-134.777 ◽

2010 ◽

Vol 133-134 ◽

pp. 777-782 ◽

Cited By ~ 2

Author(s):

Giorgio Croci ◽

A. Viskovic ◽

A. Herzalla ◽

M. Erdik ◽

M. Akdoğan ◽

...

Keyword(s):

Numerical Models ◽

Shaking Table ◽

Scale Model ◽

Masonry Structures ◽

Shaking Table Tests ◽

Structural Behaviour ◽

Monitoring Technique ◽

Motion Time ◽

Time Histories

The document concerns with the design and study of a large masonry model of Hagia Irene in Istanbul. The goals of experimentation were to acquire a deeper structural behaviour knowledge than that possible to acquire with numerical models only and to assess the effectiveness of the consolidation works foreseen on Hagia Irene. The scale factor chosen is equal to 1:10. The tests were arranged into two different phases: for not reinforced and reinforced scale model .The displacements of the markers placed on the structure were registered by an innovative monitoring technique measuring 3D motion time histories.

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Experimental Analysis of a Shake Table Test of Timber-Framed Structures with Stone and Earth Infill

Earthquake Spectra ◽

10.1193/010516eqs002m ◽

2017 ◽

Vol 33 (3) ◽

pp. 1075-1100 ◽

Cited By ~ 8

Author(s):

F. Vieux-Champagne ◽

Y. Sieffert ◽

S. Grange ◽

C. Belinga Nko'ol ◽

E. Bertrand ◽

...

Keyword(s):

Multiscale Analysis ◽

Comprehensive Analysis ◽

Shaking Table ◽

Seismic Resistance ◽

Shake Table ◽

Masonry Structures ◽

Shaking Table Tests ◽

Framed Structures ◽

Seismic Resistant ◽

Ongoing Development

The seismic performance of timber-framed structures filled with stones and earth mortar has been analyzed by introducing the structural subscales (cell, wall, house) at which monotonic and cyclic loadings were considered. This article aims to present the dynamic behavior of a house as determined through shaking table tests. Based on this experimental multiscale analysis, this paper confirms that timbered masonry structures offer effective seismic resistance; moreover, such a comprehensive analysis helps enhance understanding of the seismic-resistant behavior of timber-framed structures with infill. This paper also aids ongoing development of a numerical tool intended to predict the seismic-resistant behavior of this type of structure.

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