Dynamic assessment of a FRP suspension footbridge through field testing and finite element modelling

Votsis, Renos A.; Stratford, Tim; Chryssanthopoulos, Marios K.; Tantele, Elia A.

doi:10.12989/scs.2017.23.2.205

Cited by 29 publications

(17 citation statements)

References 15 publications

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“…Several SHM deployments on FRP bridges have been carried out to investigate structural behaviour, such as dynamic response and creep deformation (Kumar et al, 2004;Sebastian et al, 2015;Votsis et al, 2017;Siwowski et al, 2018). Particular interest is held in the material's long-term behaviour (Sebastian, 2016), as well as how it is affected by environmental factors (e.g.…”

Section: Fibre-reinforced Polymers (Frp)mentioning

confidence: 99%

Assessing the Potential Value of a SHM Deployment on a Proposed Footbridge

Nepomuceno¹,

Bennetts

Webb

et al. 2018

Advances and Challenges in Structural Engineering

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A fibre-reinforced polymer (FRP) cycle footbridge has been proposed for construction in Bristol, United Kingdom for South Gloucestershire Council. The superstructure will span 54m, comprising a bowstring carbon fibre-reinforced polymer (CFRP) arch with a 5m wide glass fibre-reinforced polymer (GFRP) deck supported by stainless steel hangers. Recently, a methodology has been proposed that provides a structured process to assess the value of a structural health monitoring (SHM) system for a bridge prior to deployment. This methodology outputs a simple metric that quantifies the likeliness of an SHM system to yield value to an asset owner. This FRP bridge is used as a case-study to 'road test' this process. Two possible systems were considered: a system of accelerometers and a system of strain gauges. From the resulting discussions, a deployment of accelerometers received a value-rating (VR) of 4.2. A strain gauge deployment received 3.7. The scores will contribute to a monitoring specification for the FRP bridge which is currently in the design phase. Expansions to the methodology have also been proposed to better capture the potential value of an SHM system which would be of interest to structural engineers and researchers, in particular to inform model validation and research activities.

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Section: Fibre-reinforced Polymers (Frp)mentioning

confidence: 99%

Assessing the Potential Value of a SHM Deployment on a Proposed Footbridge

Nepomuceno¹,

Bennetts

Webb

et al. 2018

Advances and Challenges in Structural Engineering

View full text Add to dashboard Cite

show abstract

“…1) Verification of constitutive models, using test results of laboratory specimens (Li et al, 2015;Thorhallsson et al, 2017;Siwowski et al, 2018;Chen et al, 2019;Eskandari et al, 2019;Xing et al, 2019;Zhang et al, 2019aZhang et al, , 2019b. 2) Analysis of full-scale structural elements (He et al, 2012;Votsis et al, 2017;Mahboubi and Shiravand, 2019;Muc et al, 2020;Yang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

An Efficient Approach to Describe the Fiber Effect on Mechanical Performance of Pultruded GFRP Profiles

et al. 2021

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This study focuses on the flexural behavior of pultruded glass fiber-reinforced polymer (GFRP) profiles developed for structural applications. Fiber content is a commonly accepted measure for estimating the resistance of such components, and technical datasheets describe this essential parameter. However, its direct implementation to the numerical simulations can face substantial problems because of the limitations of standard test protocols. Furthermore, the fiber mass percentage understandable for producers is unsuitable for typical software considered the volumetric reinforcement content. This manuscript exemplifies the above situation both experimentally and analytically, investigating two GFRP square hollow section (SHS) profiles available at the market. A three-point bending test determines the mechanical performance of the profiles in this experimental program; a digital image correlation system captures deformations and failure mechanisms of the SHS specimens; a standard tensile test defines the material properties. A simplified finite element (FE) model is developed based on the smeared reinforcement concept to predict the stiffness and load-bearing capacity of the profiles. An efficient balance between the prediction accuracy and computation time characterizes the developed FE approach that does not require specific descriptions of reinforcement geometry and refined meshes necessary for modeling the discrete fibers. The proposed FE approach is also used to analyze the fiber efficiency in reinforcing the polymer matrix. The efficiency is understood as the model’s ability to resist mechanical load proportional to the dry filaments’ content and experimental elastic modulus value. Scanning electron microscopy relates the composite microstructure and the mechanical performance of the selected profiles in this study.

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“…Votsis et al. [ 12 ], investigated the dynamic response of suspension bridge composed of FRP deck and predicted the vulnerability of the bridge due to lateral vibration developed by dense pedestrians. Researchers also aimed to increase the strength and stiffness of FRP material was by adding carbon fibre or glass fibre into the fibre composite material.…”

Section: Introductionmentioning

confidence: 99%

“…Fibre reinforced polymer (FRP) was selected by researchers due to its few utilizing benefits such as high strength to weight ratio, ease in installment, durable, available in different sizes and colours etc. Votsis et al [12], investigated the dynamic response of suspension bridge composed of FRP deck and predicted the vulnerability of the bridge due to lateral vibration developed by dense pedestrians. Researchers also aimed to increase the strength and stiffness of FRP material was by adding carbon fibre or glass fibre into the fibre composite material.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of pedestrian suspension bridge with innovative composite deck

Ali

Thambiratnam

Liu

et al. 2020

Heliyon

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The increasing trend of using light and slender deck in pedestrian bridge has raised the issue of instability under pedestrian movement. The suspension pedestrian bridges are more vulnerable as lateral vibration often occurred in such type of bridges. Hence, the current paper targeted to develop a pedestrian suspension bridge with a new type of composite deck using Glass Fibre Reinforced Polymer (GFRP) in the bottom layer and laminated glass in the top layer. The safety and serviceability of the developed pedestrian bridge is rigorously investigated. The performance of the suspension pedestrian bridge is comprehensively investigated by monitoring important response parameters such as stress, deflections, natural frequencies and accelerations under pedestrian loads and compared with current bridge design code requirements. The developed suspension pedestrian bridge with new type of composite deck could adhere the requirements of the bridge design code. Hence, the suspension pedestrian bridge mentioned in this paper is recommended for pedestrian use for its standard safety and serviceability.

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Dynamic assessment of a FRP suspension footbridge through field testing and finite element modelling

Cited by 29 publications

References 15 publications

Assessing the Potential Value of a SHM Deployment on a Proposed Footbridge

Assessing the Potential Value of a SHM Deployment on a Proposed Footbridge

An Efficient Approach to Describe the Fiber Effect on Mechanical Performance of Pultruded GFRP Profiles

Numerical study of pedestrian suspension bridge with innovative composite deck

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