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Prosperi, A. (author), Longo, M. (author), Korswagen, Paul A. (author), Korff, M. (author), Rots, J.G. (author)In this study, 2D and 3D modelling strategies are used to represent the behaviour of historical masonry buildings on strip foundations undergoing settlements. The application focuses on a two-story building, typical of the Dutch architectural heritage. An improved 2D modelling is presented: It includes the effect of the lateral walls to...journal article 2024
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Prosperi, A. (author), Korswagen, Paul A. (author), Korff, M. (author), Schipper, H.R. (author), Rots, J.G. (author)In the Netherlands, the potential damage to the building stock due to subsidence phenomena has recently received increased awareness. However, evaluating and predicting damage to buildings in subsiding areas is a complex task that requires associating the vulnerability of exposed structures with the intensity of the subsidence hazard....journal article 2023
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Prosperi, A. (author), Longo, M. (author), Korswagen, Paul A. (author), Korff, M. (author), Rots, J.G. (author)This paper demonstrates the use of non-linear finite element modelling to investigate the response of structures subjected to different shapes of subsidence-related ground settlements. The approach is presented with reference to a two-storey unreinforced masonry façade resting on a shallow foundation. Eight realistic settlement shapes, based on...conference paper 2023
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Prosperi, A. (author), Longo, M. (author), Korswagen, Paul A. (author), Korff, M. (author), Rots, J.G. (author)This study aims to investigate the damage response of unreinforced masonry (URM) façades resting on strip foundations and subjected to ground settlements via numerical models. The models depict the non-linear constitutive behaviour of both the masonry, via smeared cracking, and of the soil-foundation interaction, via nonlinear interface...journal article 2023
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Oktiovan, Y.P. (author), Messali, F. (author), Rots, J.G. (author)The city of Utrecht is famously known for the system of canals and the wharf cellars integrated to the heart of the city, whose construction dates back to the 1300s. Due to increased traffic volume which caused the increase in dead load and traffic load, it is important to assess the safety and state of maintenance of these historical structures...conference paper 2023
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Bresser, D. (author), Rots, J.G. (author), Hendriks, M.A.N. (author), Pari, M. (author)Sequentially Linear Analysis (SLA), an event-by-event solution strategy in which a sequence of scaled linear analyses with decreasing secant stiffness is performed, representing local damage increments; is a robust alternative to nonlinear finite element analysis of quasi-brittle structures. Since it is based on a fixed smeared crack...journal article 2023
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Xu, Jie (author), Hendriks, M.A.N. (author), Rots, J.G. (author), Tsouvalas, A. (author)Due to the accompanying severe consequences of explosions, the blast puts a great threat to public security. Nonlinear finite element analysis is a possible method for civil engineers to check the integrity of the structures under blast loading without underestimating the limit of the structures. However, different choices of element types...conference paper 2023
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Oktiovan, Y.P. (author), Mehrotra, A.A. (author), Messali, F. (author), Rots, J.G. (author)One of the characteristic features of the city of Utrecht is its extensive system of canals and wharf cellars, whose constructions date back as early as the 1200s, and which are now considered as one of the historical properties of the city. A typical wharf cellar in Utrecht comprises a masonry barrel vault with multi-layered rings for the...conference paper 2023
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Gaggero, M.B. (author), Korswagen, Paul A. (author), Esposito, R. (author), Rots, J.G. (author)Innovative solutions for seismic-retrofitting existing structures are currently required, as often traditional strategies are expensive, non-reversible, highly invasive, and/or fail to address both serviceability and ultimate limit states together. The present paper describes a preliminary experimental campaign performed at TU Delft to...journal article 2023
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Pari, M. (author), Rots, J.G. (author)Sequentially Linear Analysis (SLA) is known for robust and reliable finite element simulations of masonry constructions, often considered challenging because of the brittle behaviour of the masonry material. Herein a sequence of scaled linear analyses is performed with decreasing secant stiffness of one integration point per analysis,...book chapter 2023
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Korswagen, Paul A. (author), Longo, M. (author), Prosperi, A. (author), Rots, J.G. (author), Terwel, K.C. (author)Historical masonry façades are sensitive to various damaging processes. A recent study, looking at the initiation and progression of cracks in masonry, in the range of 0.1 to 5 mm in width and thus corresponding to light damage [1], has allowed for the calibration of finite-element models that include a material model capable of accurately...book chapter 2023
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Gaggero, M.B. (author), Korswagen, Paul A. (author), Esposito, R. (author), Rots, J.G. (author)Cracks are one of the most common expressions of damage in masonry structures. Aside from aesthetic issues, they can compromise the overall behaviour of the structure; therefore, they are undesirable and need to be repaired. The repointing technique is traditionally implemented in this context, especially in historical masonry. Nevertheless,...book chapter 2023
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de Putter, Arjen (author), Hendriks, M.A.N. (author), Rots, J.G. (author), Yang, Y. (author), Engen, Morten (author), van den Bos, Ab A. (author)Nineteen 2D nonlinear finite element analysis (NLFEA) solution strategies were benchmarked against a wide variety of 101 experiments on reinforced concrete beams failing in bending, flexural shear, or shear compression. The relatively high number of solution strategies was motivated by the conviction that choices for the constitutive models,...journal article 2022
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Ferretti, Francesca (author), Jafari, S. (author), Esposito, R. (author), Rots, J.G. (author), Mazzotti, Claudio (author)The shove test (ASTM Standard C1531) is an experimental technique aimed at studying the shear-sliding behavior of brick masonry. It can be executed according to various testing methods that differ in the way the vertical compression load is applied and in the way bricks and/or joints are locally removed for inserting jacks. One of the most...journal article 2022
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Sousamli, M. (author), Messali, F. (author), Rots, J.G. (author)Plane-stress and shell macromodels are often preferred to analyze masonry structures because of their numerical efficiency. However, they often misestimate the hysteretic behavior of the structures. Additionally, due to the nature of smeared cracks, the cracks may be diffused. This article proposes a new orthotropic model, which focuses on...journal article 2022
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Jafari, S. (author), Rots, J.G. (author), Esposito, R. (author)To date, several different structural representations of masonry are available for use in the numerical and analytical assessment methods, each calling for a distinct level of refinement regarding the material input. To determine material properties, in terms of strength, stiffness, and toughness under compression, bending, and shear loading,...journal article 2022
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Fusco, Daniela (author), Messali, F. (author), Rots, J.G. (author), Addessi, Daniela (author), Pampanin, Stefano (author)Terraced houses built in the Netherland after 1980 are often characterized by the use of large units connected at corners by continuous thin layer mortar joints. Unlike the running bond pattern, usually modelled as a rigid connection, the vertical continuous connection may fail in shear and influence the global seismic capacity of the entire...journal article 2022
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Korswagen, Paul A. (author), Longo, M. (author), Rots, J.G. (author)The probability of light damage to unprepared, unreinforced masonry structures exposed to induced seismicity due to gas extraction in the north of the Netherlands is still under investigation. Repeated light seismic excitations caused by frequent, light and nearby earthquakes have been linked to economical losses and societal unrest in...journal article 2022
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Fusco, Daniela (author), Addessi, D. (author), Messali, F. (author), Rots, J.G. (author), Pampanin, S. (author)Since the 1980s, calcium silicate element masonry has been commonly used in Dutch buildings, and vertical continuous joints have been usually located at the corner of perpendicular walls. Since the shear failure of these joints may significantly reduce the seismic performance of the flanged wall and therefore of the entire building, the...journal article 2022
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Chang, L. (author), Rots, J.G. (author), Esposito, R. (author)Perforated unreinforced masonry (URM) walls in out-of-plane (OOP) two-way bending are commonly encountered in natural hazard investigations. However, related research is rather limited. This study focuses on the influence of openings on the two-way bending capacity of URM walls. An experimental database about the perforated URM walls in OOP...journal article 2022