Structural monitoring for asset management of railway bridges

Banerji, P.; Chikermane, Sanjay; Scott, Richard; Surre, F.; Sun, Tao; Grattan, K. T. V.; Longthorne, John

doi:10.1680/bren.13.00011

Cited by 6 publications

(7 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, there is continuing interest in their use in a wide variety of structures (e.g. Kister et al, 2007, Thakur et al, 2011, Banerji et al, 2014, Bravo et al, 2014.…”

Section: Introductionmentioning

confidence: 99%

Development of low cost packaged fibre optic sensors for use in reinforced concrete structures

et al. 2019

Self Cite

View full text Add to dashboard Cite

There is an ongoing need to measure strains in reinforced concrete structures more reliably and under a range of circumstances e.g. long term durability (such as effects of cracking and reinforcement corrosion), response to normal working loads and response under abnormal load conditions. Fibre optic sensors have considerable potential for this purpose and have the additional advantages, including of immunity to electromagnetic interference and light weight (Grattan et al, 2000). This is important in railway scenarios and particularly so when the lines are electrified. Their small size allows for easy installation. However, their use as commercial 'packaged' devices (traditionally seen as necessary to achieve adequate robustness) is limited by their high cost relative to other sensor devices such as encapsulated electric resistance strain gauges. This paper describes preliminary work to produce a cost-effective and easy-to-use technique for encapsulating fibre optic sensors in resin using 3D printing techniques to produce a robust, inexpensive 'packaged' sensor system suitable for use with concrete structures. The work done to date has shown this to be a convenient and economical way of producing multiple sensors which were suitable for both surface mounting and embedment in reinforced concrete structures. The proof-of-concept testing to which the trial packages were subjected is described in the paper and the results indicate that 3D printed packages have considerable potential for further development and use in a variety of civil engineering applications, competing well with more conventional sensor systems.

show abstract

“…Nevertheless, there is continuing interest in their use in a wide variety of structures (e.g. Kister et al, 2007, Thakur et al, 2011, Banerji et al, 2014, Bravo et al, 2014.…”

Section: Introductionmentioning

confidence: 99%

Development of low cost packaged fibre optic sensors for use in reinforced concrete structures

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Prior research has found that with composite materials, sensors can be easily embedded during the manufacturing process and they have, for example, been used successfully by some of the authors for the monitoring of innovative composite bridge structures [1]. In many cases, cheaper conventional sensors such as piezoelectric accelerometers, strain gages or thermocouples can be employed if the monitoring conditions suit, although there are a number of specialist areas where this is not the case and optical fiber methods are to be preferred [2,3]. For metals, however, it can be a real challenge to incorporate sensors effectively: the manufacturing process operates at high temperatures and applications often include harsh environments, which conventional sensors are not easily able to withstand.…”

Section: Introductionmentioning

confidence: 99%

“…In most current applications, usually FOS are glued on the surface of metals, as typically is done in the monitoring of bridges and reinforcement bars [3] but the long-term degradation of adhesives and glues can affect the measurand, often then inducing unexpected errors, for example those caused by a decrease in the strain transfer as the adhesion weakens. Embedding FOS into metallic structures can avoid these problems (and the consequent resultant errors) and thus the challenge of creating a satisfactory and reproducible way to do this must be tackled.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Fiber Optic Sensor Embedded in Metals by Automatic and Manual TIG Welding

Grandal¹,

Zornoza

López³

et al. 2019

IEEE Sensors J.

Self Cite

View full text Add to dashboard Cite

In this paper, the embedding of fiber optic sensors in metals, by using both automatic and manual Tungsten Inert Gas welding (TIG) is discussed for nickel-and copper-coated Fiber Bragg Gratings (FBG) written into an optical fiber, as embedding such sensors in metals provides protection against environmental effects. In the investigation and analysis of the performance of a number of such sensors, copper-coated sensors were seen to lose their temperature and strain sensitivity while being embedded due to damage to the coating, while with a nickel coating the sensors in the fiber were found to withstand the process with a lesser effect on the sensor performance. The research has also shown that the Automatic TIG process used is less invasive than the manual TIG approach, although more expensive to implement.

show abstract

“…Moreover, data acquired by these systems can be used to devise strategies to reduce operational and maintenance costs, improve performance and quality, validate structural solutions, and develop more efficient designs and construction processes for future projects. For example, monitoring systems have been used to support the numerical modelling of existing bridges to aid in assessing current conditions (Banerji et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Management of structural monitoring data of bridges using BIM

Delgado

Butler

Gibbons

et al. 2017

Proceedings of the Institution of Civil Engineers - Bridge Engi

View full text Add to dashboard Cite

In addition to the traditional benefits associated with the installation of structural health monitoring systems, reductions in construction, operational and maintenance costs, and improved performance and quality can be achieved by effectively using the acquired data. However, considered in isolation, the raw data are of little use and value. They must be processed and put into a geometric context within the infrastructure asset, which facilitates the interpretation and analysis of the data. This supports informed decision making, which in turn leads to effective actions. This study outlines a new approach that enables the modelling of structural performance monitoring systems in a Building Information Modelling (BIM) environment and hence permits sensor data to be visualised directly on BIM models. The paper addresses aspects related to: (a) interoperability and standard data models; (b) management and visualisation of monitoring data; and (c) data interpretation and analysis. A prestressed concrete bridge, with a comprehensive built-in structural performance monitoring system, has been used as a case study. The case study demonstrates that by including and visualising monitoring data directly on BIM models the acquired data gain geometrical context within the built asset, which facilitates better interpretation, analysis and all the data-sharing benefits associated with the BIM approach.

show abstract

Structural monitoring for asset management of railway bridges

Cited by 6 publications

References 13 publications

Development of low cost packaged fibre optic sensors for use in reinforced concrete structures

Development of low cost packaged fibre optic sensors for use in reinforced concrete structures

Analysis of Fiber Optic Sensor Embedded in Metals by Automatic and Manual TIG Welding

Management of structural monitoring data of bridges using BIM

Contact Info

Product

Resources

About