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Vibration Measurements on a Cable-Stayed Cyclist Arch Bridge for Assessment of the Dynamic BehaviourVerdenius, S.A. (author), Bronkhorst, A.J. (author), Geurts, C.P.W. (author)The new cable-stayed arch bridge Tegenbosch (Eindhoven, the Netherlands) needed an assessment of its dynamic behaviour under wind loading due to its slender design. Because of wind-induced vibration issues on a number of bridges in the Netherlands with similar designs, it was decided to examine if vortex excitation, wind-rain induced vibration,...conference paper 2023
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Verdenius, S.A. (author), Hengeveld, S.T. (author), Maljaars, J. (author)Train axle load measurements performed between 2012 and 2019 at 87 locations in the Dutch railway network are used to evaluate fatigue of railway bridges. The theoretical fatigue damage using realistic influence lines is determined for the measured loads and for the load model from Eurocode EN 1991-2 Annex D. It appears that this load model is ...article 2023
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Rodenburg, J.D. (author), Maljaars, J. (author), Hengeveld, S.T. (author), Vervuurt, A.H.J.M. (author)The fatigue life of orthotropic steel bridge decks in road bridges depends on the load effects exerted by heavy lorries. The contact surface of tyres is one of the important variables. Measurements described in the literature demonstrate that the actual tyre contact surfaces of today's traffic representative for Europe are shorter and slightly...article 2023
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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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Maljaars, J. (author), Leonetti, D. (author), Hashemi, B. (author), Snijder, H.H.B. (author)This paper presents a probabilistic framework to derive the safety factors for fatigue of steel and composite steel concrete road bridges. Engineering models are used for the design and the safety factor is derived in such a way that the design meets the target reliability set by international Eurocode and ISO standards, estimated using measured...article 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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Rozsas, A. (author), Slobbe, A. (author), Martini, G. (author), Jansen, R. (author)This paper describes a static diagnostic load testing and measurement campaign of a reinforced concrete road bridge in Amsterdam. We consider 29 vertical translation sensors and 37 strain sensors. Multiple Bayesian parameter estima tions are performed to estimate two structural and two load parameters of a three-dimensional finite element (FE)...article 2022
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- Hengeveld, S.T. (author), Vervuurt, A.H.J.M. (author), Maljaars, J. (author) conference paper 2021
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Leonetti, D. (author), Maljaars, J. (author), Pasquarelli, G. (author), Brando, G. (author)Hot-riveted connections have been widely used in the past for metallic bridges, of which a large part is still in service, making relevant the assessment of their fatigue life. Previous studies have shown that the fatigue behavior of hot-riveted connections depends on many factors; among these, the residual tensile force in the rivets that...article 2020
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Leonetti, D. (author), Maljaars, J. (author), Snijder, H.H. (author)This paper presents a probabilistic fatigue life prediction model for welded details subjected to variable amplitude random loading, using the nominal stress approach. The proposed model makes use of CA S-N curves in combination with the relative damage rule which allows to globally account for load interaction effects, and the damage limit...article 2020
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Maljaars, J. (author)Fatigue verification of bridge structures requires information on the loads induced by heavy vehicles, which can be obtained from weigh in motion measurement (WIM) systems. The current fatigue load models applied in Europe are based on traffic load measurements in 1986. This paper evaluates the appropriateness of these models for today’s traffic...article 2020
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Leonetti, D. (author), Snijder, H.H. (author), Maljaars, J. (author)This present paper concerns the application of probabilistic fatigue life prediction models based on S–N curves aiming at the estimation of the safety level for a nonload carrying cruciform joint. The safety level is expressed in terms of the reliability index as a function of the number of applied cycles. Estimating the reliability of a...article 2020
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Nagy, W. (author), de Backer, H. (author), Thierens, G. (author), Blontrock, H. (author), van Bogaert, P. (author), Reynaert, K. (author), Maljaars, J. (author)Orthotropic Steel Decks (OSDs) are widely used in long span bridges because of their extremely light weight when compared to their load carrying capacity. These deck types typically consist of a grillage of closed trapezoidal longitudinal stiffeners and transverse web stiffeners, welded to a deck plate. As a result, fatigue problems occur due to...conference paper 2019
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Hansen, S.G. (author), Meinen, N.E. (author), Jørgensen, H.B. (author)Assessment of the load‐carrying capacity of existing concrete structures is often based on the concrete compressive strength obtained from drilled cores. These cores are typically drilled perpendicular to the concrete surface, under the assumption that the mechanical properties of the concrete are isotropic. Recent studies however showed that...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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Maljaars, J. (author), Bonet, E. (author), Pijpers, P.J.M. (author)Steel orthotropic decks in bridges and ferries have shown to be prone to fatigue cracking. A typical fatigue crack observed in these structures initiates at the root of the weld between the deck plate and stringer and grows into the deck plate. Due to limited fatigue test data available and the deviating characteristics of this type of crack as...article 2018
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van Es, S. (author), Slot, H. (author), Steenbergen, H. (author), Maljaars, J. (author), Pijpers, R. (author)In Memoriam of Prof. Dr. Bernt Johansson. The use of high-strength steels (HSS, 460 < fy ≤ 700 MPa) and particularly very high-strength steels (VHSS, fy > 700 MPa) is limited in steel structures in civil and offshore engineering. This is due to a lack of experience in structures made of these materials and a lack of understanding of the...article 2018
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- Dittrich, M.G. (author), van Vliet, J.W. (author) conference paper 2018
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Fan, J.T. (author), Weerheijm, J. (author), Sluys, L.J. (author)The deformation-to-fracture evolution of aflexible polymer material under high-strain-rate compressive loadingconducted by a split Hopkinson pressure bar (SHPB) setup was investigated. Representative tests were carriedout at different strain rate levels, followed by the characterization of dynamic damage after each test. Craze andcrack patterns...article 2018