<i>In situ</i>examination of structural cracks at historic masonry structures by quantitative infrared thermography and ultrasonic testing

Tavukçuoğlu, Ayşe; Akevren, S.; Grinzato, E.

doi:10.1080/09500340.2010.484553

Cited by 19 publications

(14 citation statements)

References 10 publications

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“…The majorities of applications are then concerned with troubleshooting, maintenance and repair of the building. In particular, since the 1990s this method has proved to be most e ective as a reconnaissance tool for the rapid assessment of large concrete and masonry made buildings [29,28,30]. Infrared thermography has been used on a number of di erent civil engineering applications including defects and anomalies detection in various concrete structures (highway bridges and building) [7,31,20].…”

Section: Infrared Thermographymentioning

confidence: 99%

Integrating geomatics and structural investigation in post-earthquake monitoring of ancient monumental Buildings

Dominici

Galeota

Gregori

et al. 2014

Journal of Applied Geodesy

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The old city center of L'Aquila is rich in historical buildings of considerable merit. On April 6 th 2009 a devastating earthquake caused signi cant structural damages, a ecting especially historical and monumental masonry buildings. The results of a study carried out on a monumental building, former headquarters of the University of L'Aquila (The Camponeschi building, XVI century) are presented in this paper. The building is situated in the heart of the old city center and was seriously damaged by the earthquake. Preliminary visual damage analysis carried out immediately after the quake, clearly evidenced the building's complexity, raising the need for direct and indirect investigation on the structure. Several non-destructive test methods were then performed in situ to better characterize the masonry typology and the damage distribution, as well. Subsequently, a number of representative control points were identi ed on the building's facades to represent, by their motion over time, the evolution of the structural displacements and deformations. In particular, a surveying network consisting of 27 di erent points was established. A robotic total station mounted on top of a concrete pillar was used for periodically monitoring the surveying control network. Stability of the pillar was checked through a GNSS static survey repeated before any set of measurements. The present study evidences the interesting possibilities of combining geomatics with structural investigation during post-earthquake monitoring of ancient monumental buildings.

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Section: Infrared Thermographymentioning

confidence: 99%

Integrating geomatics and structural investigation in post-earthquake monitoring of ancient monumental Buildings

Dominici

Galeota

Gregori

et al. 2014

Journal of Applied Geodesy

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“…Some research fields where QIRT and ultrasonic testing can be useful are summarized as follows:--detection of visible and invisible defects/failures in materials and structures, such as deep and surface cracks, detachments [1,2];…”

Section: Cmss-2017mentioning

confidence: 99%

Non-Destructive Testing for Building Diagnostics and Monitoring: Experience Achieved with Case Studies

Tavukçuoğlu

2018

MATEC Web Conf.

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Building inspection on site, in other words in-situ examinations of buildings is a troublesome work that necessitates the use of non-destructive investigation (NDT) techniques. One of the main concerns of non-destructive testing studies is to improve in-situ use of NDT techniques for diagnostic and monitoring studies. The quantitative infrared thermography (QIRT) and ultrasonic pulse velocity (UPV) measurements have distinct importance in that regard. The joint use of QIRT and ultrasonic testing allows in-situ evaluation and monitoring of historical structures and contemporary ones in relation to moisture, thermal, materials and structural failures while the buildings themselves remain intact. For instances, those methods are useful for detection of visible and invisible cracks, thermal bridges and damp zones in building materials, components and functional systems as well as for soundness assessment of materials and thermal performance assessment of building components. In addition, those methods are promising for moisture content analyses in materials and monitoring the success of conservation treatments or interventions in structures. The in-situ NDT studies for diagnostic purposes should start with the mapping of decay forms and scanning of building surfaces with infrared images. Quantitative analyses are shaped for data acquisition on site and at laboratory from representative sound and problem areas in structures or laboratory samples. Laboratory analyses are needed to support in-situ examinations and to establish the reference data for better interpretation of in situ data. Advances in laboratory tests using IRT and ultrasonic testing are guiding for in-situ materials investigations based on measurable parameters. The knowledge and experience on QIRT and ultrasonic testing are promising for the innovative studies on today’s materials technologies, building science and conservation/maintenance practices. Such studies demand a multi-disciplinary approach that leads to bring together knowledge on materials science and building science.

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“…Nondestructive testing techniques based on infrared thermography find application in several fields such as structural and civil engineering [1,2], with application to restoration and maintenance of historical structures [3,4]; material and aerospace engineering [5][6][7]; and evaluation of safety and reliability (quality control) in manufacturing [8]. Detecting the characteristics of a possible defect in a reasonably short time can be crucial for processes cost effectiveness and minimization of human life threats in working environments [9].…”

Section: Introductionmentioning

confidence: 99%

Determination of the modulation frequency for thermographic non-destructive testing

Borazjani

Spinello

Necsulescu

2015

NDT & E International

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In situexamination of structural cracks at historic masonry structures by quantitative infrared thermography and ultrasonic testing

Cited by 19 publications

References 10 publications

Integrating geomatics and structural investigation in post-earthquake monitoring of ancient monumental Buildings

Integrating geomatics and structural investigation in post-earthquake monitoring of ancient monumental Buildings

Non-Destructive Testing for Building Diagnostics and Monitoring: Experience Achieved with Case Studies

Determination of the modulation frequency for thermographic non-destructive testing

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