Some issues in the structural health monitoring of a railway viaduct by ground based radar interferometry

Diaferio, Mariella; Fraddosio, Aguinaldo; Piccioni, Mario Daniele; Castellano, Anna; Mangialardi, L.; Soria, Leonardo

doi:10.1109/eesms.2017.8052699

Cited by 20 publications

(8 citation statements)

References 20 publications

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“…In the field of structural health monitoring [7], great benefits have been introduced by terrestrial radar interferometry with a real aperture antenna (also referred to as TInRAR), being such a technique contactless, non-destructive, non-sensitive to dust, and able to detect displacements with an accuracy of tenths of millimeters [8,9,10,11,12,13,14,15,16,17]. Moreover, several authors have introduced benefits in the dynamic surveying of historical buildings and towers from high-speed real aperture radar interferometry under static and dynamic loads, for instance in the procedures devoted to the static and seismic vulnerability analyses [1,18,19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Assessment of Masonry Towers Based on Terrestrial Radar Interferometer and Accelerometers

Castagnetti

Bassoli

Vincenzi

et al. 2019

Sensors

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This paper discusses the performance of a terrestrial radar interferometer for the structural monitoring of ancient masonry towers. High-speed radar interferometry is an innovative and powerful remote sensing technique for the dynamic monitoring of large structures since it is contactless, non-destructive, and able to measure fast displacements on the order of tenths of millimeters. This methodology was tested on a masonry tower of great historical interest, the Saint Prospero bell tower (Northern Italy). To evaluate the quality of the results, data collected from the interferometer were compared and validated with those provided by two types of accelerometer-based measuring systems directly installed on the tower. Dynamic tests were conducted in operational conditions as well as during a bell concert. The first aimed at characterizing the dynamic behavior of the tower, while the second allowed to evaluate the bell swinging effects. Results showed a good agreement among the different measuring systems and demonstrated the potential of the radar interferometry for the dynamic monitoring of structures, with special focus on the need for an accurate design of the geometric aspects of the surveys.

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Section: Introductionmentioning

confidence: 99%

Dynamic Assessment of Masonry Towers Based on Terrestrial Radar Interferometer and Accelerometers

Castagnetti

Bassoli

Vincenzi

et al. 2019

Sensors

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“…Furthermore, it is believed that the new, fast, and contactless remote technique of radar interferometry can fruitfully be applied within the proposed concept. Radar-based measurements are discussed, for example, by Diaferio et al [26] and Gentile and Bernardini [27].…”

Section: Structural Health Monitoring (Shm) Techniquesmentioning

confidence: 99%

Future Infrastructural Replacement Through the Smart Bridge Concept

et al. 2020

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Most of the bridges and viaducts in the Netherlands were built in the sixties and seventies of the last century, and an increasing number of them will have to be replaced due to technical or functional reasons. The Netherlands is not an exception, many industrialized countries will face a similar replacement task in the near future. With the increased traffic intensities and the importance of mobility, the design and construction strategies for new bridges have to be different from that in the past. New methods need to ensure that traffic hindrance due to construction works and (future) maintenance activities are minimized. At the Delft University of Technology, a SMART bridge concept is being developed for fast and hindrance-free infrastructural replacement. The optimal advantage is achieved by utilizing innovative but proven technologies, and by bringing academic research into practice. A combination of recent innovations in construction technology, such as advanced cementitious materials (ACM), structural health monitoring (SHM) techniques, advanced design methods (ADM), and accelerated bridge construction (ABC) is being used. These innovations represent a step towards the next generation of infrastructure where fast construction, intelligent bridge design, sustainability, zero-energy, no/low maintenance, and aesthetics are key features.

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“…To this aim several types of accelerometers can provide good accuracy and the capability to measure at very low frequencies (Li et al, 2018, Cabboi et al, 2017. If displacements do not exceedi a few millimetres, they can be efficiently measured also using ground-based radar interferometry (Diaferio et al, 2017, Zhou et al, 2018. This technique has a high accuracy, but the price does not yet allow its implementation on large scale for practical applications (Pieraccini 2013).…”

Section: Performance Monitoringmentioning

confidence: 99%

Lifecycle Management, Monitoring and Assessment for Safe Large-Scale Infrastructures: Challenges and Needs

Limongelli

Previtali

Cantini

et al. 2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Many European infrastructures dating back to '50 and '60 of the last century like bridges and viaducts are approaching the end of their design lifetime. In most European countries costs related to maintenance of infrastructures reach a quite high percentage of the construction budget and additional costs in terms of traffic delay are due to downtime related to the inspection and maintenance interventions. In the last 30 years, the rate of deterioration of these infrastructures has increased due to increased traffic loads, climate change related events and man-made hazards. A sustainable approach to infrastructures management over their lifecycle plays a key role in reducing the impact of mobility on safety (over 50 000 fatalities in EU per year) and the impact of greenhouse gases emission related to fossil fuels. The events related to the recent collapse of the Morandi bridge in Italy tragically highlighted the sheer need to improve resilience of aging transport infrastructures, in order to increase the safety for people and goods and to reduce losses of functionality and the related consequences. In this focus Structural Health Monitoring (SHM) is one of the key strategies with a great potential to provide a new approach to performance assessment and maintenance over the life cycle for an efficient, safe, resilient and sustainable management of the infrastructures. In this paper research efforts, needs and challenges in terms of performance monitoring, assessment and standardization are described and discussed.

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Some issues in the structural health monitoring of a railway viaduct by ground based radar interferometry

Cited by 20 publications

References 20 publications

Dynamic Assessment of Masonry Towers Based on Terrestrial Radar Interferometer and Accelerometers

Dynamic Assessment of Masonry Towers Based on Terrestrial Radar Interferometer and Accelerometers

Future Infrastructural Replacement Through the Smart Bridge Concept

Lifecycle Management, Monitoring and Assessment for Safe Large-Scale Infrastructures: Challenges and Needs

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