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Mirra, M. (author), Pagella, G. (author), Gard, W.F. (author), Ravenshorst, G.J.P. (author), van de Kuilen, J.W.G. (author)In the historic city centre of Amsterdam (NL), the most widespread foundation system consists of wooden piles. With the aim of modelling and predicting remaining service life of these foundations and the piles in particular, one of the possible methods for collecting data and monitoring their condition consists of micro-drilling (MD)...conference paper 2023
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Pagella, G. (author), Mirra, M. (author), Ravenshorst, G.J.P. (author), van de Kuilen, J.W.G. (author)This work investigated the influence of knots on the compression strength of wooden foundation piles. The study involved 110 pile segments sawn from 18 spruce and 9 pine piles with a mean diameter of approximately 200 mm, and moisture contents above fiber saturation. The mechanical properties were determined performing both full-scale...conference paper 2023
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Truong-Hong, Linh (author), Lindenbergh, R.C. (author), Woudenberg, Pieter (author), Gard, W.F. (author), van de Kuilen, J.W.G. (author)Churches are part of heritage structures that take an important role in Europe ́s cultural identity. As such, these structures must be protected to prevent catastrophic collapse and any damage must be reported timely to establish planning to maintenance and restoration. This can be achievable when the churches are monitored periodically with...conference paper 2021
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Ravenshorst, G.J.P. (author), van Dalen, J.H. (author), Mirra, M. (author), Steiger, René (author), van de Kuilen, J.W.G. (author)In this work, the relationship for a socket-type connection in wooden foundation piles is investigated, and a trilinear moment-rotation diagram was determined by means of experiment.<br/>Numerical and analytical models confirmed that the material properties for compression perpendicular to the grain are governing for the connections’ strength...conference paper 2021
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van de Kuilen, J.W.G. (author), Beketova-Hummel, O. (author), Pagella, G. (author), Ravenshorst, G.J.P. (author), Gard, W.F. (author)Timber pile foundations are widespread in many areas around Europe and North-America. Especially in areas with weak soils, timber pile foundations have been a very good and economic solution. However, aging of the foundations can become a problem, as physical, biological and/or chemical degradation may occur over time. Now, that foundations...conference paper 2021
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Ravenshorst, G.J.P. (author), Gijzen, Richard (author), Willebrands, Okke (author), Slooten, Elgar (author), van de Kuilen, J.W.G. (author)Tall timber buildings are of growing interest worldwide and also in the Netherlands. With the introduction of CLT, higher timber buildings are possible compared to traditional timber frame housing. Tall timber buildings can be made as modular buildings or as buildings with a CLT or concrete core and a timber wall/column-floor system that can...conference paper 2021
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Kamath, A.C. (author), Gard, W.F. (author), van de Kuilen, J.W.G. (author)Tropical hardwood or treated wooden sheet piles have been used historically to protect stream banks in countries like the Netherlands. However, there is an imminent need for alternative as exploitable tropical hardwood forests available in the country is limited. Locally available softwoods are less resistant to decay and in extreme conditions...conference paper 2021
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Khaloian, Ani (author), van de Kuilen, J.W.G. (author)Before timber boards can be used for engineering applications, they need to be strength graded. This step is currently done based on visual or machine grading methods. Each approach may face problems such as frequent measurement (human) errors or problems in dynamic measurements due to missing density values, respectively. To increase...conference paper 2021
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Mirra, M. (author), Ravenshorst, G.J.P. (author), van de Kuilen, J.W.G. (author)Historical or existing buildings are often composed of brick or stone masonry walls, and timber floors and roofs. When these buildings are subjected to earthquakes, the interaction among such structural components is essential to avoid collapse or excessive damage to the constructions. In this framework, a crucial role is played by the...conference paper 2021
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Mirra, M. (author), Ravenshorst, G.J.P. (author), van de Kuilen, J.W.G. (author)In the field of seismic retrofitting, a common intervention to improve box-like behaviour in an existing building is the strengthening and stiffening of existing timber floors and roofs. However, these retrofitting methods should be carefully applied, because they change the static scheme and the buildings' response to earthquakes....conference paper 2021
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Yu, Taoyi (author), Khaloian, Ani (author), van de Kuilen, J.W.G. (author)Wood is one of the most widely applied engineering materials due to its favourable physical and mechanical characteristics. As an inhomogeneous biomaterial, wood exhibits complicated mechanical properties including anisotropy, elasto-plasticity, viscoelasticity, and hygroscopic characters. To analyse the time- and moisture-dependent behaviour...conference paper 2021
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van de Kuilen, J.W.G. (author), Antonelli, V. (author), de Pauw, I. (author)A timber guardrail made of sustainable tropical hardwoods has been developed in the Netherlands. The guardrail is an environmentally friendly alternative for zinc-coated steel barriers. The guardrail is made of a combination of two durable hardwood species: angelim vermelho (Dinizia excelsa) from Brazil and azobé (Lophira alata) from Africa....conference paper 2019
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Ravenshorst, Geert (author), Gard, W. (author), van de Kuilen, J.W.G (author)The main parameter that influences the bending strength of timber from tropical hardwood is the slope of grain. Although in the grading rules a specific threshold value is given, in these hardwoods the global slope of grain is very difficult to quantify by a visual assessment. The slope of grain measured after testing gives a better indication,...conference paper 2019
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Khaloian Sarnaghi, A. (author), Rais, A (author), Kovryga, A. (author), Gard, W.F. (author), van de Kuilen, J.W.G. (author)Wood is a strongly anisotropic and heterogeneous material with natural defects that are affecting the uniform scatter of the fiber patterns. European beech (Fagus sylvatica) is the species, used for this study. The logs of these species have generally complicated shapes with frequent curvatures, which is in contrast to most of the softwood...conference paper 2019
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Wang, Xiuli (author), Gard, Wolfgang (author), van de Kuilen, J.W.G (author)Living architecture is thriving. The integration of buildings with vegetation has become a necessity in many metropolitan areas of the world today, including Singapore, New York City, Shanghai and Milan, to name a few. It expands the potential of vertical and horizontal, exterior and interior, exposed and enclosed spaces in a building that can...conference paper 2019
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Mosleh, Yasmine (author), Poulis, Hans (author), Gard, Wolfgang (author), Van de Kuilen, J.W.G (author), van Duin, Paul (author)The structural preservation of panel paintings and decorated furniture as significant parts of Dutch cultural heritage, requires comprehensive knowledge on the long term behaviour of their constituent materials namely wood and animal glues. A decorated cabinet crafted by Jan van Mekeren (1684-1744) is chosen as the case study. The environment...conference paper 2019
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Wang, Xiuli (author), Gard, Wolfgang (author), van de Kuilen, J.W.G (author)Living architecture is thriving. The integration of buildings with vegetation has become a necessity in many metropolitan areas of the world today, including Singapore, New York City, Shanghai and Milan, to name a few. It expands the potential of vertical and horizontal, exterior and interior, exposed and enclosed spaces in a building that can...conference paper 2019
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Sandhaas, Carmen (author), Khaloian Sarnaghi, A. (author), van de Kuilen, J.W.G. (author)Tests on double-shear steel-to-timber joints loaded parallel-to-grain were undertaken, using beech and azobé with one, three and five dowels in a row. The dowels were made of high strength steel (hss) and very high strength steel (vhss). The experiments have shown a significant difference in load-carrying capacity of joints with vhss and hss...conference paper 2019
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Khaloian Sarnaghi, A. (author), Rais, A. (author), Kovryga, Andriy (author), van de Kuilen, J.W.G. (author), Gard, W.F. (author)Wood is a strongly anisotropic and heterogeneous material with natural defects that are affecting the uniform scatter of the fiber patterns. European beech (Fagus sylvatica) is the species, used for this study. The logs of these species have generally complicated shapes with frequent curvatures, which is in contrast to most of the softwood...conference paper 2019
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Wang, X. (author), Gard, W.F. (author), van de Kuilen, J.W.G. (author)Living architecture is thriving. The integration of buildings with vegetation has become a necessity in many metropolitan areas of the world today, including Singapore, New York City, Shanghai and Milan, to name a few. It expands the potential of vertical and horizontal, exterior and interior, exposed and enclosed spaces in a building that can...conference paper 2019