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Pari, M. (author), Rots, J.G. (author), Hendriks, M.A.N. (author)This article presents a new non-proportional loading strategy for Sequentially Linear Analysis (SLA), which is a robust secant stiffness based procedure for nonlinear finite element analysis of quasi-brittle materials, like concrete and masonry. The strategy is based on finding the principal planes for a total strain based fixed cracking model,...conference paper 2018
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Messali, F. (author), Ravenshorst, G.J.P. (author), Esposito, R. (author), Rots, J.G. (author)The evaluation of the seismic response of unreinforced masonry buildings is a popular topic all over the world. In recent years, also the Netherlands started to face seismic risk, since the induced seismicity in the north of the country considerably increased (the gas extraction started in 1963, and earthquakes have occurred since the early ‘90s...conference paper 2017
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Jafari, S. (author), Esposito, R. (author), Rots, J.G. (author)Starting point in this research is to find a quick and non-destructive method to characterize the mechanical properties of existing masonry. Tests on cylindrical cores have been recently introduced as a novel in-situ testing method to identify the properties of existing clay brick masonry. Currently, some researchers reported promising results,...conference paper 2017
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Pari, M. (author), Jafari, S. (author), Messali, F. (author), Esposito, R. (author), Rots, J.G. (author)Induced seismicity in the Groningen region of the Netherlands has led to a large scale testing campaign on Calcium silicate element masonry structures at Delft University of Technology. An overview of the finite element analysis (FEA) using an implicit solver, on the full scale quasi-static cyclic pushover test performed on a two-storey calcium...conference paper 2017
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Cyclic pushover test on an unreinforced masonry structure reseambling a typical Dutch terraced houseEsposito, R. (author), Terwel, K.C. (author), Ravenshorst, G.J.P. (author), Schipper, H.R. (author), Messali, F. (author), Rots, J.G. (author)During the last years, induced seismicity in the northern part of the Netherlands increased and the seismic assessment of unreinforced masonry (URM) structures became an important issue. As the problem is recent, the current building stock is not designed to withstand earthquakes and national guidelines are under development, but currently not...conference paper 2017
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Jafari, S. (author), Rots, J.G. (author), Esposito, R. (author), Messali, F. (author)In the northern part of the Netherlands, The recent seismic activities have raised concerns about the behavior of unreinforced masonry structures which were not designed and constructed to resist seismic loading. The first step towards assessment of seismic behavior of masonry structures is to characterize the material properties. This...journal article 2017
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Li, Q. (author), Su, Y. (author), Wu, Y. (author), Borgart, A. (author), Rots, J.G. (author)Vector form intrinsic finite element is a recently developed and promising numerical method for the analysis of complicated structural behavior. Taking the cable-link element as example, the framework of the vector form intrinsic finite element is explained first. Based on this, a constant strain triangle element is introduced, and relevant...journal article 2017
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- Ravenshorst, G.J.P. (author), Esposito, R. (author), Schipper, H.R. (author), Messali, F. (author), Tsouvalas, A. (author), Lourens, E. (author), Rots, J.G. (author) report 2016
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- Esposito, R. (author), Messali, F. (author), Rots, J.G. (author) report 2016
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Yu, C. (author), Hoogenboom, P.C.J. (author), Rots, J.G. (author)Sequentially linear analysis (SLA) is an alternative to the Newton-Raphson method for analyzing the nonlinear behavior of reinforced concrete and masonry structures. In this paper SLA is extended to load cases that are applied one after the other, for example first dead load and then wind load. It is shown that every nonlinear analysis step can...conference paper 2016
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Rots, J.G. (author), Messali, F. (author), Esposito, R. (author), Jafari, S. (author), Mariani, V. (author)Computational models for masonry are briefly reviewed and judged upon their practical performance at the structural scale, i.e. at building level, in a nonlinear pushover or nonlinear time history setting. Particular attention is given to an anisotropic macro model based upon total stress-strain relations in tension, shear and compression...conference paper 2016
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Giardina, C. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)This paper describes a new framework for the assessment of potential damage caused by tunneling-induced settlement to surface masonry buildings. Finite element models in two and three dimensions, validated through comparison with experimental results and field observations, are used to investigate the main factors governing the structural...journal article 2015
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- Jafari, S. (author), Panoutsopoulou, L. (author), Rots, J.G. (author) report 2015
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- Slobbe, A.T. (author), Hendriks, M.A.N. (author), Rots, J.G. (author) conference paper 2013
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Kappen, J.M.J. (author), Giardina, G. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)The development of infrastructure in major cities often involves tunnelling, which can cause damage to existing structures. Therefore, these projects require a careful prediction of the risk of settlement induced damage. The simplified approach of current methods cannot account for three-dimensional structural aspects of buildings, which can...conference paper 2013
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Slobbe, A.T. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)This paper presents a dedicated numerical test that enables to assess the directional mesh bias of constitutive models in a systematic way. The test makes use of periodic boundary conditions, by which strain localization can be analyzed for different mesh alignments with preservation of mesh uniformity and with exclusion of boundary disturbances...conference paper 2013
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De Vent, I. (author), Rots, J.G. (author), Van Hees, R.P.J. (author), Hobbelman, G.J. (author)Cracks and deformatiçns in masonry are common phenomena in historical buildings. If they are interpreted correctly, they can be an extremely valuable source çf informatiçn on the load history of the premises. Nevertheless, this interpretation is not always as obvious as one may think. In the framework of a Phd research project, an extensive...conference paper 2012
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- Giardina, G. (author), Marini, A. (author), Hendriks, M.A.N. (author), Rots, J.G. (author), Rizzardini, F. (author), Giuriani, E. (author) report 2012
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- Giardina, G. (author), Floria, V. (author), Hendriks, M.A.N. (author), Rots, J.G. (author) conference paper 2012
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- Ensink, S.W.H. (author), van de Graaf, A.V. (author), Slobbe, A.T. (author), Hendriks, M.A.N. (author), den Uijl, J.A. (author), Rots, J.G. (author) conference paper 2012