Assessment of mechanical properties of full‐scale masonry panels through sonic methods. Comparison with mechanical destructive tests

Summary Sonic tests are a valid and useful non-destructive method for qualitative characterization of masonry elements. If sonic tests are applied with the right configuration, the results can identify discontinuities in masonry sections and provide the morphology of a construction typology, contributing to the assessment of built heritage as demanded by the international recommendations on this domain. The elaboration of data from sonic tests applied to masonry structures has been essentially based on the evaluation of the P waves' propagation through the masonry thickness, that is, by using the direct sonic method, a procedure that has been calibrated for many years by different authors. However, recent studies have shown that indirect configurations through the indirect sonic impact method may be used to estimate the mechanical properties of stones masonry samples. This procedure allows assessing not only P but also R wave propagation, permitting to estimate the deformability characteristics of masonry panels. Under this research, a set of stone masonry specimens was tested using both direct and indirect sonic impact methods and later assessed through laboratory mechanical compression tests, a procedure's sequence that allow validating the sonic tests capabilities. Copyright © 2015 John Wiley & Sons, Ltd.

[1]  B. Christaras,et al.  Determination of the moduli of elasticity of rocks. Comparison of the ultrasonic velocity and mechanical resonance frequency methods with direct static methods , 1994 .

[2]  Ivan Bartoli,et al.  Multi‐sensing NDT for damage assessment of concrete masonry walls , 2015 .

[3]  Antonella Saisi,et al.  Sonic tomography and flat-jack tests as complementary investigation procedures for the stone pillars of the temple of S. Nicolò l'Arena (Italy) , 2003 .

[4]  Aníbal Costa,et al.  Sonic Impact Method – A new technique for characterization of stone masonry walls , 2012 .

[5]  A. Saisi,et al.  Application of NDTs to the diagnosis of Historic Structures , 2009 .

[6]  T. Shiotani,et al.  Repair evaluation of concrete cracks using surface and through-transmission wave measurements , 2007 .

[7]  Vincenzo Sepe,et al.  A method for large‐scale vulnerability assessment of historic towers , 2008 .

[8]  Luigia Binda,et al.  UTILIZATION OF SONIC TESTS TO EVALUATE DAMAGED AND REPAIRED MASONRIES , 1992 .

[9]  António Arêde,et al.  Physical characterization and compression tests of one leaf stone masonry walls , 2012 .

[10]  Homayoun Najjaran,et al.  Novel Methodology for Nondestructive Evaluation of Brick Walls: Fuzzy Logic Analysis of MASW Tests , 2008 .

[11]  J. Bungey,et al.  Using compression wave ultrasonic transducers to measure the velocity of surface waves and hence determine dynamic modulus of elasticity for concrete , 1996 .

[12]  Antonella Saisi,et al.  INVESTIGATION PROCEDURES FOR THE DIAGNOSIS OF HISTORIC MASONRIES , 2000 .