Shear capacity of timber-to-timber connections using wooden nails

Ruan, Gengmu; Filz, Günther H.; Fink, Gerhard

doi:10.1080/17480272.2021.1964595

Cited by 18 publications

(12 citation statements)

References 14 publications

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“…It involved multiple iterations, numerous adaptations, changes, and the absence of established standards for such structures. It merged functional, material and structural knowledge into various design proposals [8][9][10][11] . Additionally, new legal regulations and the participation of various stakeholders further characterized this complex undertaking.…”

Section: Design Loopsmentioning

confidence: 99%

Medijana-Niš Archeological Site Protection Structure

Vucur,

Filz

2023

XI Textile Composites and Inflatable Structures

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The "Medijana" project was designed to protect one of the most important archaeological excavation sites from the ancient Roman period in Serbia, and presented a significant challenge due to its location as a candidate for UNESCO heritage protection. In 2023, the project has been completed, with total covered surface of 12,000 m2, a main clear span of 80m and a length of 148m, one of the largest membrane structures in this region of Europe. The site-specific limitations and conditions required careful planning and logistics. As such, this project serves as a unique case study that illustrates the interplay between design, limitations, and consequently the need for innovative detailing and installation techniques. Through monitoring and observation over a period of 9 years, a wealth of information including wooden structuremembrane interaction, microclimatic conditions, and maintenance has been collected, which will be valuable for future developments, the field of membrane structures in cultural heritage applications and beyond. INTRODUCTIONThe archaeological site "Medijana" is located in the city of Niš in Serbia and is one of the most important sites from the ancient Roman period [1] . It is the birthplace of Constantine the Great, one of the most important Roman emperors who liberated Christianity and founded Constantinople, today's Istanbul, as the new capital and one of the most impressive cities of the present day. It is still a mystery whether the ruins and mosaics of the "Villa with Peristil" in Medijana, actually is the birthplace of the great emperor. The excavation operations at this site commenced nearly a century ago. Over the course of all these years, efforts were made to fully comprehend the significance of this location and establish the necessary measures to enhance its level of protection. Today the site is a candidate for UNESCO heritage protection [2] .The "Medijana" project introduces approaches to safeguarding this significant archaeological site through the implementation of a membrane cover. While the utilization of

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Section: Design Loopsmentioning

confidence: 99%

Medijana-Niš Archeological Site Protection Structure

Vucur,

Filz

2023

XI Textile Composites and Inflatable Structures

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“…Three types of wooden nails and two types of cross-sections of timber boards were used in the experimental investigation. For details about the experimental investigation, it is referred to Ruan et al (2022a).…”

Section: Feedback Loop I -Wooden Nail Connectionmentioning

confidence: 99%

“…Regarding the bending resistance of the connection with multiple pairs of wooden nails, a simple analytical model has been developed and validated with high accuracy (Ruan et al 2022a). This helps in a better understanding of the force flow and also in finding the most efficient way of arranging wooden nails.…”

Section: Lessons Learntmentioning

confidence: 99%

Master Builders revisited

Ruan,

Filz,

Fink

2023

ARF

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In light of today's challenges regarding sustainable solutions for the built environment, our research focuses on building entire structures with timber only. Salvaged timber and wooden nails are selected as starting points to explore the structural and architectural possibilities by following a timber-only concept. Reminding of the ancient Master Builder idea, the process of our investigations makes clear the importance of all steps and their distinct insights feeding back, following the loops from design to the assembly of the objects, to increase the efficiency of material use and optimize the functionality of the final object. In this paper, we evaluate the feedback loops performed so far including the lessons learnt from success and failure in design, testing, and manufacturing. We also look into the potential of the increased structural and architectural quality of outputs and increased diversity of applications by our approach.

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“…In the context of the co-author´s research on timber-only structures and architecture, we investigate the topic both, from an engineering [17][18][19] as well as from an architectural and artistic point of view [20][21][22].…”

Section: Vertical and Horizontal Multidisciplinary Research And Desig...mentioning

confidence: 99%

“…The design concept is first conceptually applied short span bridges on a natural trail path in Finland. As a follow-up, in [18] we report about a series of 90 shear tests to explore the shear capacity and slip modulus of timber-to-timber connections with wooden nails. As densified wooden nails might become an alternative to metallic fasteners, this study examined different specimens of wooden nails in varying dimensions, orientations, and arrangements to determine their performance in timber-to-timber connections.…”

Section: Vertical and Horizontal Multidisciplinary Research And Desig...mentioning

confidence: 99%

Horizontal and Vertical Knowledge Management in Multidisciplinary Research and Design-Build Teaching: A Timber-Only Trail

Filz

Ruan

2023

World Conference on Timber Engineering (WCTE 2023)

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The Kouvola Trail" is part of our timber-only research project and consists of 2 realized parts, (i) the prefabricated, "Modular Trail" and the customized "Plaza" modules. On the example of the trail project, this paper describes its combined systemic horizontal and vertical processes, network, knowledge management and multidisciplinary collaboration. Based on systemic knowledge management and the concept of the vertical design studio, we have simultaneously implemented and exposed our research in timber-only structures and architecture to teaching, real world application and manufacturing to enable both, horizontal and vertical alignments. We provide insights into how our academic research on using locally salvaged timber and wooden nail connections vertically links both, disciplines within Aalto, to the Kouvola region vocational college and to industrial partners and manufacturers. This vertical alignment and collaboration not only facilitated academic and practice-oriented knowledge transfer but also increased project-complexity by exchanging ways of thinking. Consequently, we recognized a significant increase of students´ technical expertise, functional development of knowledge, skills, and also motivation, as demonstrated by the "Street Furniture" prototype. Additionally, horizontal learning and collaboration as an inter-organizational system-relationship was fostered by setting up multidisciplinary design teams including the disciplines of civil engineering, architecture, arts and design, plus practical approaches to construction by the vocational school. Expanding this approach e.g. to business schools may open new perspectives and opportunities for industrial partners in future.

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Shear capacity of timber-to-timber connections using wooden nails

Cited by 18 publications

References 14 publications

Medijana-Niš Archeological Site Protection Structure

Medijana-Niš Archeological Site Protection Structure

Master Builders revisited

Horizontal and Vertical Knowledge Management in Multidisciplinary Research and Design-Build Teaching: A Timber-Only Trail

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