Publications de Romain Pasquier

Measurement system design for civil infrastructure using expected utility

Ian Smith, Romain Pasquier, James-Alexandre Goulet

For system identification, most sensor-placement strategies are based on the minimization of the model-parameter uncertainty. However, reducing the uncertainty in remaining-life prognosis of structures is often more relevant. This paper proposes an optimiz ...

Elsevier2017

Comparing case studies of a new structural identification framework based on model falsification reasoning

Ian Smith, Romain Pasquier

CRC Press2016

The Singapore cyber-civil-infrastructure project

Ian Smith, Romain Pasquier

ICE Publishing2016

Iterative structural identification framework for evaluation of existing structures

Ian Smith, Romain Pasquier

Evaluation of aging infrastructure has been a world-wide concern for decades due to its economic, ecological and societal importance. Existing structures usually have large amounts of unknown reserve capacity that may be evaluated though structural identif ...

2016

Measurement system design based on the expected utility of monitoring actions

Ian Smith, Romain Pasquier

2016

Measurement, Data Interpretation, and Uncertainty Propagation for Fatigue Assessments of Structures

Ian Smith, Claire Acevedo, Alain Nussbaumer, Romain Pasquier, James-Alexandre Goulet, Luca D'Angelo

Real behavior of existing structures is usually associated with large uncertainty that is often covered by the use of conservative models and code practices for the evaluation of remaining fatigue lives. In order to make better decisions related to retrofi ...

American Society of Civil Engineers2016

Performance Assessment and Prognosis for Civil Infrastructure Based on Model Falsification Reasoning

Ian Smith, Romain Pasquier

2015

Performance Assessment and Prognosis for Civil Infrastructure Based on Model Falsification Reasoning

Romain Pasquier

Infrastructure facilities are important to the economic growth and quality of life of modern societies. Much infrastructure has been built principally in the second half of the 20th century and several thousand structures are now attaining their design liv ...

EPFL2015

Using measurements to reduce model uncertainty for better predictions

Ian Smith, Romain Pasquier

Accurate models of real behaviour that are determined through measurements help engineers avoid expensive interventions and structural replacement. Model calibration by “curve-fitting” measurements to predictions is not appropriate for full-scale structure ...

2015

Sources and forms of modelling uncertainties for structural identification

Ian Smith, Romain Pasquier

The aim of model-based structural identification is to make sense of monitoring data in order to improve knowledge of the real behaviour of structures. Common use of structural-identification techniques involves an assumption of independent zero-mean Gauss ...

2015

Robust system identification and model predictions in the presence of systematic uncertainty

Ian Smith, Romain Pasquier

Model-based data-interpretation techniques are increasingly used to improve the knowledge of complex system behavior. Physics-based models that are identified using measurement data are generally used for extrapolation to predict system behavior under othe ...

Elsevier2015

Improving Fatigue Evaluations of Structures Using In-Service Behavior Measurement Data

Ian Smith, Claire Acevedo, Romain Pasquier, James-Alexandre Goulet

Conservative models and code practices are usually employed for fatigue-damage predictions of existing structures. Direct in-service behavior measurements are able to provide more accurate estimations of remaining-fatigue-life predictions. However, these e ...

American Society of Civil Engineers2014

Improving Remaining-Fatigue-Life Evaluation Using Data Interpretation

Ian Smith, Romain Pasquier, Yves Sylvain Gilles Reuland

This paper presents a methodology that improves fatigue-performance evaluations using model-based data interpretation. The accuracy of stress-range values is essential for quantifying fatigue damage. These values are usually predicted using physics-based m ...

2013

Model-Based Data Interpretation and Diagnosis Robustness

Ian Smith, Romain Pasquier, James-Alexandre Goulet

Model-based data-interpretation techniques are widely used to identify the behavior of structures. These techniques exploit information provided by in-situ measurements to make diagnosis related to structural performance. In the context of model-based infr ...

Taylor & Francis Group2013

Reducing Uncertainties Regarding Remaining Lives of Structures Using Computer-aided Data Interpretation

Ian Smith, Romain Pasquier, James-Alexandre Goulet

The growing importance of economic and environmental issues associated with the replacement of transportation infrastructure creates a demand for new techniques that are able to predict accurately the behaviour of existing structures. While monitoring stru ...

2012