Spectral analysis of surface waves for non-destructive evaluation of historic masonry buildings

Martínez-Soto, Fernando; Ávila, Fernando Martín-Consuegra; Puertas, Esther; Gallego, Rafael

doi:10.1016/j.culher.2021.09.002

Cited by 17 publications

(6 citation statements)

References 21 publications

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“…SASW does not require intrusive boring, which makes it more cost-effective than other geotechnical site investigation tests, and provides Vs values that can be used in seismic designs. In addition, SASW has been utilized for decades at a variety of sites, including normal ground sites, as well as tunnels, dams, and other structures due to its ability to be tested in a variety of site conditions [4][5][6][7] and for many different purposes [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Shear Wave Velocity Determination of a Complex Field Site Using Improved Nondestructive SASW Testing

Kim,

Hwang

2024

Sensors

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The nondestructive spectral analysis of surface waves (SASW) technique determines the shear wave velocities along the wide wavelength range using Rayleigh-type surface waves that propagate along pairs of receivers on the surface. The typical configuration of source-receivers consists of a vertical source and three vertical receivers arranged in a linear array. While this approach allows for effective site characterization, laterally variable sites are often challenging to characterize. In addition, in a traditional SASW test configuration system, where sources are placed in one direction, the data are collected more on one side, which can cause an imbalance in the interpretation of the data. Data interpretation issues can be resolved by moving the source to opposite ends of the original array and relocating receivers to perform a second complete set of tests. Consequently, two different Vs profiles can be provided with only a small amount of additional time at sites where lateral variability exists. Furthermore, the testing procedure can be modified to enhance the site characterization during data collection. The advantages of performing SASW testing in both directions are discussed using a real case study.

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Section: Introductionmentioning

confidence: 99%

Shear Wave Velocity Determination of a Complex Field Site Using Improved Nondestructive SASW Testing

Kim,

Hwang

2024

Sensors

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“…But destructive methods adversely affect the historical and artistic values of the building, as well as its authenticity and integrity. In particular, sampling inspection can cause tensional damage or even fracture to the construction materials [2].…”

Section: Introductionmentioning

confidence: 99%

“…Some of the NDT techniques are X-ray fluorescence spectroscopy, holographic interferometry, infrared thermography, sonic/ultrasonic, electromagnetic and electrical techniques, and Schmidt Hammer Rebound (SHR) test; [1], [2], [5], [6], [8], [13]- [17]. In order for these techniques to be applied non-destructively, the devices must be portable and the work must be done in situ [18].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Cultural Heritage by Non-Destructive Methods: The Case of Sivas Congress Museum

Pehlivan

2023

Architecture and Urban Planning

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Analysis of cultural heritage by non-destructive testing methods allows conducting an examination of the building while preserving its authenticity and integrity, as well as its historical and artistic values. As the material of this study, the Sivas Congress Museum, which witnessed a very important event in the history of the country, was discussed. The aim of the study is to determine the stone type, deterioration, hardness, and strength of the building and thus generate an idea about the quality of architectural practices in the 19th century. In addition, it aims to create a scientific basis for conservation measures and restoration works to be carried out in the following years and to determine whether there is any difference between the stone material used in the main building and the stone of the building annexed later on. At the end of the study, it was concluded that the poor economic conditions of the country have affected the quality of the building material, the stones – soft and low-strength limestone – have been exposed to atmospheric pollution and deteriorated. In addition, although one of the stones that had undergone black crusting was cleaned, it was found that mechanical cleaning was insufficient to eliminate the pollution.

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“…This "System Identification" process requires different setups for cross-correlation during the signal processing of the captured vibrations. In optimal conditions, the instrumentation is positioned either inside the building [6,27,28] or at the exterior of the monument [1,29,30].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characterisation of a Heritage Structure with Limited Accessibility Using Ambient Vibrations

et al. 2023

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Historic Cairo has been a UNESCO World Heritage Site since 1979. It has more than 600 historic structures, which require extensive studies to sustain their cultural, religious, and economic values. The main aim of this paper is to undertake dynamic investigation tests for the dome of Fatima Khatun, a historic mausoleum in Historic Cairo dating back to the 13th century and consisting of mainly bricks and stones. The challenge was that the structure was difficult to access, and only a small portion of the top was accessible for the attachment of accelerometers. Current dynamic identification procedures typically adopt methods in which the sensors are arranged at optimal locations and permit direct assessment of the natural frequencies, mode shapes, and damping ratios of a structure. Approaches that allow for the evaluation of dynamic response for structures with limited accessibility are lacking. To this end, in addition to in situ dynamic investigation tests, a numerical model was created based on available architectural, structural, and material documentation to obtain detailed insight into the dominant modes of vibration. The free vibration analysis of the numerical model identified the dynamic properties of the structure using reasonable assumptions on boundary conditions. System identification, which was carried out using in situ dynamic investigation tests and input from modelling, captured three experimental natural frequencies of the structure with their mode shapes and damping ratios. The approach proposed in this study informs and directs structural restoration for the mausoleum and can be used for other heritage structures located in congested historic sites.

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Spectral analysis of surface waves for non-destructive evaluation of historic masonry buildings

Cited by 17 publications

References 21 publications

Shear Wave Velocity Determination of a Complex Field Site Using Improved Nondestructive SASW Testing

Shear Wave Velocity Determination of a Complex Field Site Using Improved Nondestructive SASW Testing

Analysis of Cultural Heritage by Non-Destructive Methods: The Case of Sivas Congress Museum

Dynamic Characterisation of a Heritage Structure with Limited Accessibility Using Ambient Vibrations

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