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de Vries, R. (author), Lantsoght, E.O.L. (author), Steenbergen, Raphaël D.J.M. (author), Fennis, Sonja A.A.M. (author)In the evaluation of existing bridges and viaducts, relying solely on a desk study is often inadequate for determining their structural reliability. Performing a proof load test provides valuable field data that offers detailed information about the structural integrity. However, the relation between the magnitude of the load and the...journal article 2023
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de Vries, R. (author), Lantsoght, E.O.L. (author), Steenbergen, Raphaël D.J.M. (author), Naaktgeboren, Marius (author)Because of the aging of infrastructure, methods are explored by which the reliability of existing bridges and viaducts can be assessed. In cases in which limited information of the structure is available or its condition is of concern, proof load testing may be used to demonstrate sufficient live load carrying capacity. Proof load tests in...journal article 2023
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Lantsoght, E.O.L. (author)As the existing bridge stock is aging, the task of assessing these bridges becomes increasingly important. One of the assessment methods for existing bridges is load testing. Improvements in the field of diagnostic load testing are related to the use of numerical models. Improvements in the field of proof load testing focus on the safety of...journal article 2023
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Dick, Joost (author)Long-term settlement is unavoidable but by good prediction accompanied risks can be reduced. Nowadays linear isotach models belong to the state of the art but result in very small strain rates when small load increments or unloading is applied. For that reason this study has focused on the validation of those predictions using InSAR. Different...master thesis 2022
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Lantsoght, E.O.L. (author), Yang, Y. (author), van der Veen, C. (author)Load testing and in some cases failure (or collapse) testing of bridges is a method to learn more about the behaviour of full-scale bridges in site conditions. Since such experiments, especially failure tests, are expensive, an extensive preparation of these tests is important. This paper addresses the question of when a bridge is a good...journal article 2022
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de Vries, R. (author), Lantsoght, E.O.L. (author), Steenbergen, R.D.J.M. (author), Fennis, S.A.A.M. (author)In the assessment of existing infrastructure performing only a desk study is often not sufficient to determine the structural reliability of a bridge or viaduct. For concrete structures gathering field data by performing a proof load test offers detailed information about the structural performance. However, the relation between the magnitude...conference paper 2022
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Duffy, K. (author), Gavin, Kenneth (author), de Lange, Dirk (author), Korff, M. (author)Stresses generated from pile installation are a critical component in understanding pile behaviour. These are known as residual stresses and in Delft, the Netherlands, the response of three driven precast piles founded in sand was measured using distributed fibre optic sensing as part of a series of full-scale static load tests. The...conference paper 2022
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Zarate Garnica, G.I. (author), Lantsoght, E.O.L. (author), Yang, Y. (author)Nowadays, with the aging of the bridges and the advancements in technology, load testing has emerged as an effective method to assess existing concrete bridges with missing information, or where analytical methods do not provide an accurate assessment. Two types of load tests are identified: diagnostic load tests and proof load tests. Both...journal article 2022
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Duffy, K. (author), Gavin, Kenneth (author), Askarinejad, A. (author), Korff, M. (author), de Lange, D.A. (author), Roubos, A.A. (author)Large areas of the Netherlands are dominated by deep, soft soil deposits, posing a challenge to engineers with respect to the design of axially loaded foundations. The design of these foundations is primarily based on methods which use cone penetration test (CPT) parameters, such as that outlined in the Dutch national standard NEN 9997-1. A...conference paper 2022
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Faassen, Luuk (author)As the average age of bridges in the Netherlands is increasing and loads are rising, more research on the capacity of these bridges is required. One of the methods to determine if a bridge still has sufficient safety is proof load testing. Stop criteria are values of structural responses at which further loading may course irreversibly damage to...master thesis 2021
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Westerbeke, Fréderike (author)Almost 4000 MV piles are used as anchorage of quay walls in the port of Rotterdam. The current design method of MV piles in Dutch practice is a CPT-based method that correlates the cone resistance to the shaft friction by a factor α_t. In the port of Rotterdam, the cone resistance is restricted under the assumption that no shaft resistance...master thesis 2021
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Alampalli, Sreenivas (author), Frangopol, Dan M. (author), Grimson, Jesse (author), Halling, Marvin W. (author), Kosnik, David E. (author), Lantsoght, E.O.L. (author), Yang, David (author), Zhou, Y. Edward (author)Bridge load testing can answer a variety of questions about bridge behavior that cannot be answered otherwise. The current governing codes and guidelines for bridge load testing in the United States are the 1998 NCHRP Manual for Bridge Rating through Load Testing and Chapter 8 of the AASHTO Manual for Bridge Evaluation. Over the last two...review 2021
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Honardar, Siavash (author)In the city of Amsterdam, many structures, such as houses,bridges and quay walls, are founded on wooden piles. In order to gain insightinto the safety of such structures, assessment of the foundations is required.As part of an experimental framework assessing the safety of bridges and quaywalls in the city of Amsterdam, a...master thesis 2020
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Bons, Mark (author)The urge for more sustainable and cost-efficient repair methods for damaged parts is growing every day. On the other hand, laser metal deposition (LMD) is gaining momentum. This flexible technique, where material is added in a layer-by-layer fashion with a minimal heat input offers solutions for a wide range of production and repair purposes....master thesis 2020
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Matic, I. (author), de Nijs, R.E.P. (author), De Vos, M. (author), Roubos, A.A. (author)In 2017 the Dutch national standardization institute (NEN) released a new version of the National Annex to NEN-EN 1997-1 Eurocode 7, including revised reduced pile base factors. This has a significant impact on the dimensions of pile foundations. Consequently, in situ load tests were considered in the Port of Rotterdam. In this study, full-scale...conference paper 2019
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Lantsoght, E.O.L. (author), Yang, Y. (author), van der Veen, C. (author), Hordijk, D.A. (author), de Boer, A (author)Existing bridges with large uncertainties can be assessed with a proof load test. In a proof load test, a load representative of the factored live load is applied to the bridge at the critical position. If the bridge can carry this load without distress, the proof load test shows experimentally that the bridge fulfills the requirements of the...journal article 2019
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Lantsoght, E.O.L. (author), De Boer, Ane (author), van der Veen, C. (author), Hordijk, D.A. (author)Proof load testing of existing reinforced concrete bridges is becoming increasingly important as the current bridge stock is aging. In a proof load test, a load that corresponds to the factored live load is applied to a bridge structure, to directly demonstrate that a bridge fulfills the code requirements. To optimize the procedures used in...journal article 2019
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Snijder, A.H. (author), Nijsse, R. (author), Louter, P.C. (author)A Glass Truss Bridge has been constructed on the Green Village on the campus of Delft University of Technology (TU Delft) by the Glass & Transparency Research group (faculties of Architecture and CiTG). The bridge has been fitted with as many glass components as was structurally feasible, showcasing the group’s research into the structural...journal article 2018
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CHEN, Xin (author)Bridges with different geometrical configurations have been searched with linear finite element analysis. The aim is to find the position and value of critical proof load. Four different parameters, namely span length, width, skewness and thickness ratio, their influence on proof load are found. In total, 166 sets of data are obtained by...student report 2017