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Pavlovic, M. (author), Veljkovic, M. (author)The experiment data available on 4-point bending experiments performed in Aus-tralia and Europe on tubular section beams are validated by FEA. Large scattering of available experiment results is investigated by detailed analysis of different geometrical imperfections. Loading set-up is analysed through modelling of welding induced imperfections....conference paper 2016
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Jovašević, S. (author), Correia, J. A F O (author), Pavlovic, M. (author), Rebelo, C. (author), De Jesus, A. M P (author), Veljkovic, M. (author), Da Silva, L. Simões (author)A steel hybrid structural solution for onshore wind turbine towers was proposed in the European project SHOWTIME. This solution is used in the lattice structure for the lower portion of the tower. Recently, a procedure for fatigue life estimation of steel half-pipes bolted connections applied in global structural models using multiaxial Smith...journal article 2016
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De Andrade, Pedro Pimenta (author), Lagerqvist, Ove (author), Veljkovic, M. (author), Simoes, Rui (author), Lundholm, John (author)Sweden has a strong demand on the construction of student accommodations and consequently significant efforts have been taken to increase and streamline construction methods. In addition, the fluctuation on the number of students admitted at each year, in each university, lead to periods of house shortage or, in opposition to that, to...conference paper 2016
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Jovašević, Slobodanka (author), Shah Mohammadi, Mohammad Reza (author), Rebelo, Carlos (author), Pavlovic, M. (author), Veljkovic, M. (author)Currently, onshore wind turbines are economical for 2.5 mega-watt inland installation [1]. One of the alternatives to achieve the higher power capacity in onshore wind turbines is to go to higher altitude, which increases the wind speed and has more uniform wind pressure, leading to higher possible annual energy production and relatively...journal article 2017
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Heistermann, Christine (author), Pavlovic, M. (author), Veljkovic, M. (author), Pak, Daniel (author), Feldmann, Markus (author), Rebelo, Carlos (author), da Silva, Luis Simões (author)Friction connections with long open slotted holes have been proven to be a competitive alternative to the conventional flange connections in steel tubular towers for wind energy converters. As full-scale tests are not available, results of Finite Element Analysis (FEA) of the real-scale tower geometry are used in this paper to investigate the...journal article 2017
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Pavlovic, M. (author), Veljkovic, M. (author)The Eurocode 3 rules for the high-strength steel (HSS: f<sub>y</sub> > 460 MPa) limit the analysis of beams to elastic global analysis and grades up to S700. In order to fully exploit the potential to design lightweight and sustainable steel structures, plastic analysis and the use of higher steel grades with f<sub>y</sub> > 700 MPa are...journal article 2017
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Nijgh, M.P. (author), Gîrbacea, Andrei (author), Veljkovic, M. (author)One of the increasingly important parameters in the construction sector is the time required for the execution and easy demounting of a structure. The goal of this paper is to provide insight into an on-going research focusing on structural performance of large prefabricated concrete decks connected by a demountable shear connectors. A large...conference paper 2018
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Wu, W. (author), Kolstein, M.H. (author), Veljkovic, M. (author)The orthotropic steel decks (OSDs) are one of the most widely used bridge components, especially in moveable and long span bridges. Numerous cracks have been detected in this type of deck in existing bridges, mainly in the welded joints. The fatigue performance of the bridge deck dominates its design. Among them, the crack at the rib-to-deck...journal article 2018
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Matos, R. (author), Pinto, P. (author), Rebelo, C. (author), Veljkovic, M. (author), Simões Da Silva, L. (author)Micropiles, which are small-diameter deep foundation solutions with diameters that can measure up to 300 mm, are often used to reinforce new and existing foundations. Their use in the foundations of structures with high eccentricity, such as wind towers when subjected to wind loads, may lead to more efficient and economical solutions. As the...journal article 2018
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Nijgh, M.P. (author), Veljkovic, M. (author), Pavlovic, M. (author)Composite beams are frequently used because of their competitive combination of a steel beam and a concrete deck. Further optimization of composite beams is possible through use of tapered steel beams. In terms of material reuse, composite structures generally underperform, because of the concrete casted in-situ. The most common shear connector...conference paper 2018
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Kozma, Andras (author), Odenbreit, Christoph (author), Volker Braun, Matthias (author), Veljkovic, M. (author), Nijgh, M.P. (author)The deconstruction of steel-concrete composite structures in buildings and the later separation of the materials is a labour- and cost intensive work. The shear studs are welded on the steel beam and imbedded in the concrete deck and a large amount of cutting work becomes necessary. As a result, recycling is difficult and the potential for...conference paper 2018
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Nijgh, M.P. (author), Xin, H. (author), Veljkovic, M. (author)Injected bolted connections have been used in the Netherlands since the 1970s, initially to replace riveted connections of steel railway bridges. More recently, structural components with different geometrical tolerances have also been connected using injection bolts and oversize holes. The natural confinement of a bolted connection provides...journal article 2018
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- Bijlaard, F.S.K. (author), Veljkovic, M. (author), Shi, Gang (author), Qiang, X. (author) contribution to periodical 2018
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Stranghöner, Natalie (author), Afzali, Nariman (author), Jungbluth, Dominik (author), Veljkovic, M. (author), Bijlaard, F.S.K. (author), Gresnigt, A.M. (author), de Vries, P.A. (author), Kolstein, M.H. (author), Nijgh, M.P. (author)SIROCO investigated the slip-resistant behaviour of carbon and stainless steel preloaded connections as well as the preloading behaviour of stainless steel bolting assemblies in principle. The slip factor test procedure according to Annex G of EN 1090-2 was investigated regarding the influence of the test speed, preload level, tightening method,...report 2019
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Nijgh, M.P. (author), Veljkovic, M. (author)Duurzaamheid wordt steeds belangrijker in de bouwsector. Demontabel en herbruikbaar bouwen vermindert het gebruik en verbruik van natuurlijke grondstoffen en minimaliseert afval en uitstoot van schadelijke stoffen. Binnen de sectie Steel and Composite Structures van de TU Delft is ontwikkeling van technische oplossingen voor duurzame staal-beton...journal article 2019
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Gîrbacea, Andrei (author), Nijgh, M.P. (author), Veljkovic, M. (author)Environmental concerns steerthe construction industry towards more sustainable developmentssuch asdemountable and reusablestructures. Composite structures are a frequent solution for multi-story buildings and bridges, however the use of welded shear connectors requires labour and energy intensive disassembly. Two bays of a demountable flooring...conference paper 2019
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Gritsenko, Alina (author), Nijgh, M.P. (author), Veljkovic, M. (author)Composite slab consisting of in‐situ casted reinforced concrete on profiled sheeting, which is connected to steel beams by shear connectors, is a common structural flooring system in office buildings and car parks. The headed welded studs are inexpensive and rather easy to use in‐situ because they can be welded to the steel beam through the...conference paper 2019
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Gupta, Ravi Shankar (author), Xin, H. (author), Veljkovic, M. (author)Orthotropic Steel Decks (OSDs) are widely used in various types of steel bridges due to its benefits of light weight, high load bearing capacity and speedy construction. However, fatigue remains as the predominant problem for OSDs. Many researchers have investigated fatigue issues of welded joints through experiments but is not a cost-effective...journal article 2019
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Jovasevic, Slobodanka (author), Correia, José (author), Pavlovic, M. (author), Dantas, Rita (author), Rebelo, Carlos (author), Veljkovic, M. (author), de Jesus, Abilio M.P. (author)Purpose: In the last decades, the demand and use of renewable energies have been increasing. The increase in renewable energies, particularly wind energy, leads to the development and innovation of powerful wind energy converters as well as increased production requirements. Hence, a higher supporting structure is required to achieve higher wind...journal article 2019
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Tran, Anh Tuan (author), Bernspång, Lars (author), Veljkovic, M. (author), Rebelo, Carlos (author), Da Silva, Luís Simõ ões (author)This paper describes a study of the behaviour of cold-formed high strength steel angles. Thirty-six specimens with different cold-formed angles (90°, 100°, 120°, 140°, 160°, and 170°) and different thicknesses (4 mm and 6 mm) were considered. The initial geometric imperfections of the specimens were determined using the 3D laser scanning...journal article 2019