Instrumentation, Nondestructive Testing, and Finite-Element Model Updating for Bridge Evaluation Using Strain Measurements

Sanayei, Masoud; Phelps, John E.; Sipple, Jesse D.; Bell, Erin Santini; Brenner, Brian

doi:10.1061/(asce)be.1943-5592.0000228

Cited by 123 publications

(80 citation statements)

References 16 publications

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“…Sanayei et al (2011) presented a manual model updating example where model predictions are manually compared to measurements and the model is calibrated based on engineering knowledge to minimize an objective function. A typical objective function for residual minimization is shown in equation (1):…”

Section: Residual Minimizationmentioning

confidence: 99%

Comparing Structural Identification Methodologies for Fatigue Life Prediction of a Highway Bridge

Pai

Nussbaumer

Smith

2018

Front. Built Environ.

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Accurate measurement-data interpretation leads to increased understanding of structural behavior and enhanced asset-management decision making. In this paper, four datainterpretation methodologies, residual minimization, traditional Bayesian model updating, modified Bayesian model updating (with an L -norm-based Gaussian likelihood func-∞ tion), and error-domain model falsification (EDMF), a method that rejects models that have unlikely differences between predictions and measurements, are compared. In the modified Bayesian model updating methodology, a correction is used in the likelihood function to account for the effect of a finite number of measurements on posterior probability-density functions. The application of these data-interpretation methodologies for condition assessment and fatigue life prediction is illustrated on a highway steel-concrete composite bridge having four spans with a total length of 219 m. A detailed 3D finite-element plate and beam model of the bridge and weigh-in-motion data are used to obtain the time-stress response at a fatigue critical location along the bridge span. The time-stress response, presented as a histogram, is compared to measured strain responses either to update prior knowledge of model parameters using residual minimization and Bayesian methodologies or to obtain candidate model instances using the EDMF methodology. It is concluded that the EDMF and modified Bayesian model updating methodologies provide robust prediction of fatigue life compared with residual minimization and traditional Bayesian model updating in the presence of correlated nonGaussian uncertainty. EDMF has additional advantages due to ease of understanding and applicability for practicing engineers, thus enabling incremental asset-management decision making over long service lives. Finally, parallel implementations of EDMF using grid sampling have lower computations times than implementations using adaptive sampling.

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Section: Residual Minimizationmentioning

confidence: 99%

Comparing Structural Identification Methodologies for Fatigue Life Prediction of a Highway Bridge

Pai

Nussbaumer

Smith

2018

Front. Built Environ.

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“…In long bridges with connectivity importance as Chacao Channel Bridge, the investment in instrumentation represents a small amount of the total project cost. Moreover, it is important to have continuous monitoring in order to update the properties of the bridges over time, as proposed by Sanayei (Sanayei et al, 2012). In this way it is possible to detect changes in the structures that may indicate weakening due to earthquakes, accidents, damage caused by the action of environment or other, and take actions to repair or reinforce them.…”

Section: Discussionmentioning

confidence: 99%

Seismic behavior of chilean bridges with seismic protection devices

Moroni

Sarrazín

Venegas

et al. 2015

Revista de la Construcción

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Several bridges with seismic protection systems have been built in the last decade in Chile. Accelerometer networks have been installed in some of them. Seismic records have been obtained by these instruments for moderate and severe earthquakes. In this paper, records registered at Marga Marga Bridge, Amolanas Bridge and Metro Viaduct are analyzed, and analytical models of the structures are developed. The parameters used in the models are adjusted using actual records in order to obtain the best fit between models and measured structural responses, in particular, frequencies and maximum displacement. The validated models are then used to estimate maximum stresses in principal elements and to compare them with nominal values given by design codes.Keywords: Bridge, accelerometer network, seismic protection, analysis models, design code ResumenEn los últimos años se han construido en el país varios puentes y viaductos que incluyen sistemas de aislación sísmica y disipación de energía. Algunos de ellos cuentan con redes de registro de aceleraciones que han operado durante los últimos sismos que han afectado al territorio nacional, obteniéndose valiosos registros. En este trabajo se presenta un análisis de los registros y del comportamiento de los puentes Marga Marga, Amolanas y del viaducto de la Línea 5 del Metro de Santiago ante estos sismos. El objetivo principal es validar modelos de análisis que den resultados realistas ante este tipo de solicitación con el fin de mejorar los métodos de diseño. Con dicho fin, se comparan frecuencias y desplazamientos máximos obtenidos de los registros con resultados de análisis dinámico no lineal, considerando como input los registros de aceleración de campo libre. Con los modelos validados se obtienen esfuerzos máximos alcanzados en elementos principales durante dichos eventos y se comparan con valores nominales de diseño.Palabras Claves: Puente, red de acelerómetros, protección sísmica, modelos de análisis, código de diseño

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“…Ahlborn et al [76] applied different image technologies in assessing the condition of concrete bridge decks and reported that the 3DOB or BVCR techniques based on close range 3D photogrammetry and the GigaPan technique based on street view-style photography are the best technologies for defect measurement for bridge inspections. The DIC technology uses mathematical algorithms to extract displacement information from a series of photographs and can be used to calculate load rating of BCA throughout the service life of the bridge [77]. Hinzen [78] demonstrated the feasibility of damage detection and quantification based on google street view images.…”

Section: Nde Using Remote Sensing Technologiesmentioning

confidence: 99%

Condition Assessment of Reinforced Concrete Bridges: Current Practice and Research Challenges

Touzani

Nehdi

2018

Infrastructures

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Abstract:One quarter of bridges in Canada and the United States need repair. The present study provides a critical overview of the state-of-the-art existing condition assessment techniques for reinforced concrete bridges, with an emphasis on current practice in North America. The techniques were classified into five categories, including visual inspection, load testing, non-destructive evaluation, structural health monitoring, and finite element modelling. The potential applications of these technologies are discussed and compared, highlighting their primary advantages and limitations. The review revealed that quantitative assessment could be effectively achieved using several complementary technologies. It is shown that there is need for concerted research efforts to achieve automated data collection and interpretation analyses. Also, the configuration of monitoring systems was found to be paramount in effectively assessing bridge performance parameters of interest. The study suggests appropriate investigation methods for some bridge deterioration mechanisms. Knowledge gaps and challenges in this field are outlined in order to motivate further research and development of these technologies.

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Instrumentation, Nondestructive Testing, and Finite-Element Model Updating for Bridge Evaluation Using Strain Measurements

Cited by 123 publications

References 16 publications

Comparing Structural Identification Methodologies for Fatigue Life Prediction of a Highway Bridge

Comparing Structural Identification Methodologies for Fatigue Life Prediction of a Highway Bridge

Seismic behavior of chilean bridges with seismic protection devices

Condition Assessment of Reinforced Concrete Bridges: Current Practice and Research Challenges

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