HoStaBau - Timber-steel hybrid construction
New development of a hybrid construction method through the advantageous combination of the materials steel and timber for linear load-carrying elements subject to bending load. The hybrid construction method is characterized by the shear-resistant embedding of a high-strength steel profile in a compact timber cross-section. This allows the specific advantages of the two building materials to be optimally utilized and the weaknesses of the building materials to be compensated for by the composite partner.
Contact: Simon Aurand and Peter Haase
HS-Hybrid - Integrated wood-steel hybrid elements
Development of integrated timber-steel hybrid elements for commercial and multi-storey buildings with spans of up to 10 m and development of a suitable design concept.
Contact: Stephan Strübel
hardwood_joint
Development of economical, reliable and innovative joining technologies for hardwood components and corresponding design rules.
Contact: Elisabet Kuck
FaNaBu - Trusses made of softwood and beech wood
Development of a truss girder concept for spans of up to 100 m using laminated beech veneer lumber, hybrid beams made of softwood and beech wood, and wood screws as fasteners.
Contact: Sebastian Egner
Connectors made of densified veneer wood with increased friction in the shear plane
For the first time, new connectors made of densified veneer wood (DVW) were realized. Initially, the surface of the DVW was treated to increase the friction between the connector and the timber component in the shear joints and thus significantly increase the load-bearing capacity of the connection. Friction tests were carried out to determine the friction coefficients of the surfaces. In subsequent compression-shear tests, the behavior of the surfaces in connections with inclined fully threaded screws was investigated.
Contact: Simon Aurand
Final report: Karlsruhe Reports on Timber Engineering, Volume 38
Bending strength of beams made from laminated segment timber
Laminated Segment Timber (LST) consists of mutually glued trapezoidal lamellas made of Spruce. Due to the optimization of process parameters the wood yield can be increased to an average of 85%. LST and layered LST are regulated in ETA-19/0832. Simulation studies deal with the characteristic bending strength at variing member depth and height as well as modifications in the production process.
Contact: Lukas Windeck
Final report: Karlsruhe Reports on Timber Engineering, Volume 37