Structural Assessment for an old Steel Railway Bridge Under Static and Dynamic Loads Using Fibre Optic Sensors

Lee, S.C.; Tee, Bun Pin; Chong, M.F.; Mahamud, K.M.S. Ku; Mohamad, Hisham

doi:10.1680/icsic.64669.729

Cited by 5 publications

(4 citation statements)

References 18 publications

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“…The development of damage detection techniques can be applied to monitor whether the structure's service life has exceeded the design limit. When long-term monitoring of bridges is required, instrumentations are usually installed to determine the frequency of the railway bridge [3], [4]. Damage detection technique for bridge structure under moving vehicle loads was evaluated numerically and verified experimentally [5].…”

Section: Introductionmentioning

confidence: 99%

Behavior of a steel structure railway bridge under dynamic loadings

Abi,

Agoeng,

Barasa

et al. 2024

J Appl Eng Science

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Most old steel structure railway bridges in Indonesia have deteriorated throughout their service life since they were constructed almost a century ago. However, those bridges' performance must be maintained to have essential safety issues and live extension of the railway bridge structure. Therefore, inspecting and evaluating those steel railway bridges is necessary to maintain the service requirement. Vertical deformation of the steel railway bridge caused by dynamic loadings needs to be observed. The objective of the study is to assess the old steel railway bridge by evaluating the strength characteristics of the structures against the working forces, particularly the moving, wind, and seismic loads. In order to understand the phenomena impacted by the dynamic loadings, the steel structure railway bridge was instrumented using deformation sensors, strain gages, accelerometers, and passive infrared. The steel railway bridge was analyzed using a 3D finite element model. This study discussed the influence of dynamic loadings on the steel structure railway bridge. This paper elaborates and provides suggestions to solve problems and recommended action in practice for future study. This paper may be useful for researchers and practicing engineers.

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Section: Introductionmentioning

confidence: 99%

Behavior of a steel structure railway bridge under dynamic loadings

Abi,

Agoeng,

Barasa

et al. 2024

J Appl Eng Science

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“…Using a numerical model combined with test data, the typical dynamic and static behaviors of a steel truss arch railway bridge are evaluated in paper [22]. Article [23] presents a structural health and performance assessment on an existing old steel pratt-typed truss railway bridge with unbraced compression chords in Malaysia using fibre optic sensors. Liu and Xiao researched the fatigue load based on the measured data [24].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Static and Dynamic Performance for Continuous Warren Truss Steel Railway Bridge in Heavy Haul Railway

Li,

Luo,

2024

Modelling and Simulation in Engineering

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Continuous Warren truss steel railway bridges are one of the main forms of railway bridges. Due to the deterioration of materials and the long-term effect of loads, the bridges will inevitably experience performance degradation, which may lead to the failure of the bridge structure to continue to operate. In order to study the mechanical properties of steel structure bridges after material deterioration and long-term loads, a continuous Warren truss steel railway bridge that has been in operation for nearly 30 years (built in 1996) is used as the research object, and a combination of field tests and finite element (FE) simulations are used to carry out research on its mechanical properties under different loads. The research results show that after nearly 30 years of operation, the steel structure bridge has local damage, but the bearing capacity still meets the requirements of heavy-duty traffic. At this stage, the corrosion of the steel structure and the damage of the bearing should be repaired in time to prevent the damage from expanding.

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“…as reflected in both application and review studies [ 17 , 18 ]. Perhaps due to the decreasing cost of FBG sensors and the advantages offered over conventional sensors, such as their embeddability, flexibility, small in size, immune to electrical or magnetic interference (EMI), resistance to corrosion, multiplexing, multifunctioning, high-resolution, and high measuring accuracy [ 17 , 19 , 20 , 21 ]. FBG sensor is usually imprinted on a bare fiber, and many points can be written along the same fiber forming a chain of FBG sensors.…”

Section: Introductionmentioning

confidence: 99%

“…Sometimes FBG requires protection when they are used in a harsh environment. To enhance the mechanical strength and durability of FBG sensors, they are encapsulated in composite material or encased in a steel casing fabricated explicitly for a particular sensing purpose [ 19 , 22 ]. Many techniques of packaging FBG are reported in the literature based on a specific need [ 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

Surface-Mounted Bare and Packaged Fiber Bragg Grating Sensors for Measuring Rock Strain in Uniaxial Testing

Isah

Mohamad

2021

Sensors

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The paper explores the possibility of using high-resolution fiber Bragg grating (FBG) sensing technology for on-specimen strain measurement in the laboratory. The approach provides a means to assess the surface deformation of the specimen, both the axial and radial, through a chain of FBG sensor (C-FBG), in a basic setup of a uniaxial compression test. The method is cost-effective, straightforward and can be commercialized. Two C-FBG; one was applied directly to the sample (FBGBare), and the other was packaged (FBGPack) for ease of application. The approach measures the local strain with high-resolution and accuracy levels that match up to the existing local strain measuring sensors. The approach enables the evaluation of small-strain properties of the specimen intelligently. The finite element model analysis deployed has proven the adaptability of the technique for measuring material deformation. The adhesive thickness and packaging technique have been shown to influence the sensitivity of the FBG sensors. Owing to the relative ease and low-cost of instrumentation, the suggested method has a great potential to be routinely applied for elemental testing in the laboratory.

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Structural Assessment for an old Steel Railway Bridge Under Static and Dynamic Loads Using Fibre Optic Sensors

Cited by 5 publications

References 18 publications

Behavior of a steel structure railway bridge under dynamic loadings

Behavior of a steel structure railway bridge under dynamic loadings

Experimental Analysis of Static and Dynamic Performance for Continuous Warren Truss Steel Railway Bridge in Heavy Haul Railway

Surface-Mounted Bare and Packaged Fiber Bragg Grating Sensors for Measuring Rock Strain in Uniaxial Testing

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