Experiences of Dynamic Identification and Monitoring of Bridges in Serviceability Conditions and after Hazardous Events

Rainieri, Carlo; Notarangelo, Matilde A.; Fabbrocino, Giovanni

doi:10.3390/infrastructures5100086

Cited by 25 publications

(9 citation statements)

References 47 publications

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“…Accordingly, the on-site experimental measure and comparative analysis of vibration parameters for various structural systems and constructional materials are typically associated to efficient early maintenance interventions [15]. Several studies can be found with a focus on variation of vibration frequencies [16,17], modal damping [18,19] or modal shape and curvature [20,21]. In this regard, LG members can be intended as load-bearing components in the same way as traditional constructional systems, and thus susceptible to conventional structural health monitoring procedures.…”

Section: Introductionmentioning

confidence: 99%

Post-Breakage Vibration Frequency Analysis of In-Service Pedestrian Laminated Glass Modular Units

Bedon

Noè

2021

Vibration

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The vibration performance of pedestrian structures has attracted the attention of several studies, especially with respect to unfavourable operational conditions or possible damage scenarios. Specific vibration comfort levels must be commonly satisfied in addition to basic safety requirements, depending on the class of use, the structural typology and the materials involved. Careful consideration could be thus needed at the design stage (in terms of serviceability and ultimate limit state requirements), but also during the service life of a given pedestrian system. As for structural health monitoring purposes, early damage detection and maintenance interventions on constructed facilities, vibration frequency estimates are also known to represent a preliminary but rather important diagnostic parameter. In this paper, the attention is focused on the post-breakage vibration analysis of in-service triple laminated glass (LG) modular units that are part of a case-study indoor walkway in Italy. On-site non-destructive experimental methods and dynamic identification techniques are used for the vibration performance assessment of a partially cracked LG panel (LGF), compared to an uncracked modular unit (LGU). Equivalent material properties are derived to account for the fractured glass layer, and compared with literature data for post-breakage calculations. The derivation of experimental dynamic parameters for the post-breakage mechanical characterization of the structural system is supported by finite element (FE) numerical models and parametric frequency analyses.

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Section: Introductionmentioning

confidence: 99%

Post-Breakage Vibration Frequency Analysis of In-Service Pedestrian Laminated Glass Modular Units

Bedon

Noè

2021

Vibration

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“…It is worth noticing that given the 3 main different types of structures (i.e. buildings Dolce et al (2017), bridges and infrastructures Anastasopoulos et al (2021), Giordano et al (2021), Rainieri et al (2020), cultural heritages Kita et al (2019), Potenza et al (2015) and towers Venanzi et al (2020), Gentile et al (2016)) different attentions and instructions must be ensured in the phases of monitoring system design.…”

Section: Introductionmentioning

confidence: 99%

Design and evaluation of 5G-based architecture supporting data-driven digital twins updating and matching in seismic monitoring

Gattulli

Franchi

Graziosi

et al. 2022

Bull Earthquake Eng

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Digital Twins (DT) models are gaining special attention in the management and maintenance of facilities. The quality of data contained in these models may be enhanced by the use of processed information coming from long-term Structural Health Monitoring (SHM). In this case real time processing and updating in systems using sensor networks for SHM need low latency and reliable communication. This paper presents a solution for exploiting DT models for SHM and early warning solutions improvement. The case study scenario resides within the 5G experimentation in the city of L’Aquila and it exploits a highly adaptable sensor board and a 5G Multi-Access Edge Computing architecture.

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“…Masonry arch bridges are particularly vulnerable to this phenomenon, due to their high stiffness and the usually shallow footings. The relevance of the problem is also witnessed by the increasing number of works dealing with this issue, e.g., numerical studies employing soilfoundation-structure interaction models with different level of complexity [4,9], works proposing advanced models for describing the cracking mechanism evolution in the masonry components [10][11][12][13], and studies oriented towards dynamic identification and scour monitoring [14][15][16][17]. Moreover, besides the studies fully dedicated to the seismic response [18,19], the literature offers an always growing number of papers focused on vulnerability and resilience assessment of masonry bridges under multiple hazard (mainly earthquakes and floods) [20,21].…”

Section: Introductionmentioning

confidence: 99%

Scour-Induced Dynamic Properties Modification of Masonry Arch Bridges With Different Geometry

Scozzese¹,

Ragni²,

Tubaldi³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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This paper, focused on the effect of local scour actions on masonry bridges, represents a followup of a previous study conducted by the authors aimed at analysing the effect of a localised scour-induced settlement of the pier on the modal properties of the bridge (i.e., frequencies and mode shapes). Results from the previous study showed as the scour phenomenon, even at its early stages could induced a non-negligible variability of the transverse modal shape of a masonry arch bridge selected as case study. In this paper, the work is continued by analysing how the bridge geometry can affect the aforesaid results. To this aim, bridges with three different geometry (130 m length, 100 m length, 50 m length) are analysed by simulating the scour evolution under the piers and by monitoring the modal response at different stages of the excavation. Accurate finite element models are developed in Abaqus, accounting for both mechanical and geometrical nonlinearities.

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Experiences of Dynamic Identification and Monitoring of Bridges in Serviceability Conditions and after Hazardous Events

Cited by 25 publications

References 47 publications

Post-Breakage Vibration Frequency Analysis of In-Service Pedestrian Laminated Glass Modular Units

Post-Breakage Vibration Frequency Analysis of In-Service Pedestrian Laminated Glass Modular Units

Design and evaluation of 5G-based architecture supporting data-driven digital twins updating and matching in seismic monitoring

Scour-Induced Dynamic Properties Modification of Masonry Arch Bridges With Different Geometry

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