A Calculation Method for Interconnected Timber Elements Using Wood-Wood Connections

Abstract

Wood-wood connections, widely used in the past, have been progressively replaced by steel fasteners in timber constructions. Currently, they can be manufactured and implemented more efficiently thanks to digital fabrication techniques. In addition, with the emergence of new timber plate engineered products, digitally produced wood-wood connections have been developed with a strong focus on complex free-form geometries. The gained knowledge through research and building implementations have pushed the development of more standardized structural elements. As a result, this work presents a new concept of building components using through tenon connections based on the idea of transportable flat-packs directly delivered and assembled on site. The main objective of this research is to develop a convenient calculation model for practice that can capture the semi-rigid behavior of the connections and predict the effective bending stiffness of such structural elements. A case study is used as a reference with three large-scale slabs of a 8.1 m span. Bending and vibration tests are performed to study the mechanical behavior and assess the proposed calculation method. The results show the high influence of the semi-rigid behavior of connections on the bending properties and, therefore, on the serviceability limit state. The model is in good agreement with the test results, and further improvements can be made regarding the local behavior of the connection. This study demonstrates the feasibility of the proposed construction system and the applicability of the developed calculation model to design practice.

Two Complementary Approaches toward Geodetic Monitoring of a Historic Wooden Church to Inspect Its Static and Dynamic Behavior

“…In buildings consisting of parts created at different times, using different methods, weak spots usually occur at the junction of different types of construction, at the point where they are connected [20]. It is expected that the most sensitive element of the building will be the intersection of the two oldest parts, the nave and the presbytery and, In buildings consisting of parts created at different times, using different methods, weak spots usually occur at the junction of different types of construction, at the point where they are connected [20].…”

Monotonic and cyclic pull-pull tests on dowel-nut connector in laminated veneer lumber made of European beech wood

“…For connections used in timber structures, the initial stiffness may be computed from the F-δ response as the secant stiffness either at 40% of the estimated peak capacity [23] or between 0.1F peak and 0.4F peak [24]. Some authors (see [25]) adopted the method recommended in [26] for the calculation of bending elastic modulus for timber members, based on a linear regression analysis of the F-δ response between 0.1F peak and 0.4F peak .…”

Proceedings of the 27th Conference on Computer Aided Architectural Design Research in Asia (CAADRIA) [Volume 2]

“…Our collaborative design workflow has first been tested on a piece of timber slab consisting of 4 panels connected by through tenon joints (Figure 6). This construction system was initially developed with the idea of shipping flat packs of timber panels to be assembled on-site (Gamerro et al, 2020). Using our parametric tool, timber joints are automatically generated between the panels.…”