Searched for: author%3A%22Allaix%2C+D.L.%22
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Allaix, D.L. (author), bigaj-van Vliet, A. (author), Cerar, B. (author)
Road and railway infrastructure networks form the backbone of European transportation systems, carrying more than 80% of passenger and 50% of goods transport in Europe. Bridges and tunnels which are critical elements of the transport infrastructure networks, have in many cases reached their design service life and keep ageing, with the...
conference paper 2022
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Allaix, D.L. (author), Bigaj-van Vliet, A.J. (author), Visser, J.H.M. (author), Valcke, S.L.A. (author)
The European Green Deal published by the European Commission in December 2019 has set the target of 50% reduction of CO2 emissions and primary material consumption by 2030 compared to the 1990 levels. The construction sector is one of the key sectors where significant improvements are necessary for reaching the European targets. Among the...
conference paper 2022
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Valcke, S.L.A. (author), Bigaj-van Vliet, A.J. (author), Allaix, D.L. (author), Braendstrup, C. (author), Visser, J.H.M. (author), Garzon Amortegui, J.F. (author), Wang, S.J. (author), Godoi Bizarro, D.E. (author), Szklarz, S.P. (author), Barros, E. (author)
Sustainable development is a complex, multi-disciplinary and multi-sectoral challenge with often contradicting objectives. As such, in the strongly fragmented construction sector often only single aspects of the challenge are subject of innovations. Therefore the construction sector faces a huge challenge to meet multiple goals set a.o. in the...
conference paper 2022
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Cerar, B. (author), Allaix, D.L. (author), Vervuurt, A.H.J.M. (author)
In Europe, the developments in robotization for transport and mobility are directed towards connected and cooperative automation as well as improving sustainability. The same developments can be observed in the Netherlands. There are many potential technologies associated with automation and robotization in transport and logistics. For CO2...
report 2022
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Bigaj - Van Vliet, A.J. (author), Allaix, D.L. (author), Kohler, D. (author), Scibilia, E. (author)
This contribution is outlining the vision and approach developed in the IM-SAFE project towards the standardisation of monitoring, data-informed safety assessment and predictive maintenance policies of bridges and tunnels considering the integration of digital innovations and reports on the initial activity in the IM-SAFE project [1] that is...
conference paper 2022
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Allaix, D.L. (author), Bigaj-van Vliet, A. (author)
Aiming to ensure the safety of the transport infrastructure during operation through the improvement of maintenance policies across Europe, the European Commission opened in 2019 the call for the Coordination and Support Action (CSA) “Monitoring and safety of transport infrastructure”. The main goal of this CSA is to support the preparation of a...
conference paper 2022
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Engen, M. (author), Hendriks, M.A.N. (author), Monti, G. (author), Allaix, D.L. (author)
When non-linear finite element analyses are used in design of new or assessment of existing concrete structures, one should account for the modelling uncertainty before conclusions are drawn based on the results. The present article describes the basis for how this topic is treated in the draft of fib Model Code 2020. There are two components of...
article 2021
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Roubos, A.A. (author), Allaix, D.L. (author), Schweckendiek, T. (author), Steenbergen, R.D.J.M. (author), Jonkman, S.N. (author)
The assessment of service-proven quay walls subject to corrosion-induced degradation is inherently a time-dependent reliability problem. Two major challenges are the modelling of corrosion and taking into account the decrease of epistemic uncertainty throughout the quay wall’s service life. The main objective of this study is to examine the...
article 2020
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Rozsas, A. (author), Slobbe, A.T. (author), Allaix, D.L. (author), Courage, W.M.G. (author), Bigaj van Vliet, A.J. (author), Burggraaf, H.G. (author)
The objective of this paper is to explore the added value of full-probabilistic nonlinear finite
bookPart 2019
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Slobbe, A. (author), Rózsás, Á. (author), Allaix, D.L. (author), bigaj-van Vliet, A. (author)
The objective of this paper is to explore the value of reliability-based nonlinear finite element analysis (NLFEA) over the currently available, standardized assessment methods. To our knowledge, no studies are available on this subject, and this paper provides a first insight into the value and reliability level of these assessment methods. The...
article 2019
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Slobbe, A.T. (author), Rozsas, A. (author), Allaix, D.L. (author), Bigaj-van Vliet, A.J. (author)
conference paper 2019
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Roubos, A.A. (author), Allaix, D.L. (author), Steenbergen, R.D.J.M. (author), Fischer, K. (author), Jonkman, S.N. (author)
General frameworks for reliability differentiation have evolved over time and are mainly developed for new buildings. However, recommendations for existing quay walls are lacking. In this study target reliability indices for assessing existing quay walls were derived by economic optimisation and by evaluating the Life Quality Index criterion ...
conference paper 2019
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la Gasse, L.C. (author), Steenbergen, R.D.J.M. (author), Allaix, D.L. (author)
Traffic load models like in the Eurocode and other design standards are mostly calibrated using traffic load measurements at heavily loaded highway locations. Therefore application of these models to existing bridges in the urban road network often leads to unnecessary strengthening. Direct measurement data for this road network are currently...
article 2019
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Steenbergen, R.D.J.M. (author), Allaix, D.L. (author), la Gasse, L.C. (author), Vervuurt, A.H.J.M. (author)
Verschillende decentrale overheden in Nederland hebben in de afgelopen jaren aangegeven dat de huidige regelgeving aangaande de aan te houden verkeersbelasting voor de beoordeling van bestaande constructies leidt tot een veiligheidsniveau dat rekenkundig onvoldoende is. In opdracht van Gemeente Rotterdam is door TNO een onderzoek uitgevoerd...
report 2018
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Leonetti, D. (author), Hashemi, B. (author), Allaix, D.L. (author), Maljaars, J. (author)
This paper investigates the differences in the predicted fatigue life of transverse butt weld joints and cover-plated beams considering statistically based fitting methods on fatigue test data and comparing the results with the S-N relation proposed in international standards. The test data fitting are performed by employing the Least Square...
conference paper 2017
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Slobbe, A. (author), Allaix, D.L. (author), Yang, Y. (author)
Different analytical models exist to predict the shear strength of reinforced concrete members. Generally, each of these shear strength models consists of a formulation based on certain underlying theory and fitted model coefficients. The model fitting parameters are usually established from the comparison with test data. Hence, the predictive...
conference paper 2017
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Dragt, R.C. (author), Allaix, D.L. (author), Maljaars, J. (author), Tuitman, J.T. (author), Salman, Y. (author), Otheguy, M.E. (author)
Fatigue is one of the main design drivers for offshore wind substructures. Using Fracture Mechanics methods, load sequence effects such as crack growth retardation due to large load peaks can be included in the fatigue damage estimation. Due to the sequence dependency, a method is required that represents the sequences of loads in the design or...
conference paper 2017
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Slobbe, A. (author), Allaix, D.L. (author), Courage, W. (author), van Vliet, A.B. (author)
The accuracy of predictions of structural behavior by finite element analysis strongly depends on the formulation of the numerical model. Depending on the problem at hand, the analyst has to make a number of choices, which influence the numerical results to a greater or lesser extent. For complex cases, e.g. existing reinforced concrete...
conference paper 2017
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Allaix, D.L. (author), Geurts, C.P.W. (author)
Several design guidelines and codes [1-5] prescribe limit values for the intensity of different types of vibrations. Even though it is possible to find some background documents of those guidelines [6], to the best knowledge of the authors of this report, the limit values are based on experience. Despite the fact that some guidelines [2-3]...
report 2017
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Allaix, D.L. (author), Gijsbers, F.B.J. (author)
The focus of this report is on the assessment of the characteristic (5% fractile) S-N curves for reinforcement bars, based on fatigue tests performed at constant stress amplitude [1] which have been performed in The Netherlands in the past years. Five datasets of experimental tests are considered in the investigation. The diameter of the bars...
report 2016
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