Publication

Friction welding of wood – A fast, adhesive-free bonding technology for prefabricated elements in timber construction

Alfred Hatt
2013
Posters

Abstract

Up to now chemical adhesives based on polyurethane are used for the assembling of timber planks to large-scale structural elements, in particular cross-laminated timber panels (CLT), which opened new possibilities for architects and engineers in timber construction. The use of these adhesives still implicates, beside others, concerns about their impact on health and environment during application as well for later disposal. In order to overcome the geometrical limitations of timber by maintaining its physical and ecologic properties, adhesive-free friction welded bonds are a promising alternative to glued connections. The presented research focuses on the structural behaviour of the welded joint, its longevity and the numerical prediction of its load bearing capacity.

Official source

https://infoscience.epfl.ch/entities/publication/d1a3d592-706a-4350-92f0-53109724462c

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Alfred Hatt
2013
Posters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/d1a3d592-706a-4350-92f0-53109724462c

About this result

Related concepts (28)

Timber framing

Timber framing (Holzfachwerk) and "post-and-beam" construction are traditional methods of building with heavy timbers, creating structures using squared-off and carefully fitted and joined timbers with joints secured by large wooden pegs. If the structural frame of load-bearing timber is left exposed on the exterior of the building it may be referred to as half-timbered, and in many cases the infill between timbers will be used for decorative effect.

Structural engineering

Structural engineering is a sub-discipline of civil engineering in which structural engineers are trained to design the 'bones and muscles' that create the form and shape of human-made structures. Structural engineers also must understand and calculate the stability, strength, rigidity and earthquake-susceptibility of built structures for buildings and nonbuilding structures. The structural designs are integrated with those of other designers such as architects and building services engineer and often supervise the construction of projects by contractors on site.

Lumber

Lumber is wood that has been processed into uniform and useful sizes (dimensional lumber), including beams and planks or boards. Lumber is mainly used for construction framing, as well as finishing (floors, wall panels, window frames). Lumber has many uses beyond home building. Lumber is sometimes referred to as timber in England, Australia and New Zealand, while in most parts of the world (including the United States and Canada) the term timber refers specifically to unprocessed wood fiber, such as cut logs or standing trees that have yet to be cut.

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Friction welding of wood – A fast, adhesive-free bonding technology for prefabricated elements in timber construction

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