We developed computational design methods capable of segmenting slabs with irregular column layouts, supporting automated design generation. The design engine was built using modular scripting in Rhino and Grasshopper, generating high-resolution slab models, including segmentation and detailed lamella arrangements. This was tested for different building blocks considering spans from 3 to 12 meters. A robust, federated data schema—implemented via BHoM—is in use, guaranteeing smooth interoperability between design models, structural simulation tools, LCA analysis, and fabrication code generation workflows. Data interface protocols support versioning, automated data transfer, and integration of feedback loops, enabling reciprocal adaptation of design based on simulation and performance data.
Definition of Benchmark simulations and joint requirements contribute to the long-term goal of structural performance in comparison to state-of-the-art multi-storey buildings. Results show the UTS system can perform better than state-of-the-art building systems, although further work and testing must be realized to experimentally prove the performance of the system. A method for both the automated simulation and dimensioning of the UTS system for a wide variety of geometries and cases have been delivered successfully. The simulation results must be proven and calibrated experimentally in reporting period 2.
Nine fabrication process variants were defined and benchmarked. Three variations were identified as most promising for throughput and immediate industrial application. A highly innovative nail-press gluing process was conceived. This press-free nail-press gluing was validated with a custom robotic end-effector and in detailed mechanical tests. Trials show stable consolidation without timber damage and industrial-quality milling on cured assemblies, establishing a controllable, repeatable process basis for test specimens. This process will be used for lab prototyping to de-risk hardware investments while keeping results transferable. Fabrication time, cost, energy and material quantity KPIs were computed for all benchmark slabs and a consolidated benchmark dataset was used to inform decision making on further strategic development steps.
Parameters for the evaluation of reliable fabrication quality have been defined and applied to nine different lamination variants to uncover possible uncertainties and shortcomings. The adhesive database defines the exact manufacturing conditions that need to be met for a given adhesive in order to implement it in a certifiable production process. The characterization of an innovative adaptation of the nail-press gluing method using wood-based nails (variant V1) was commenced on the basis of experimental tests.
Generative design methods were integrated through novel interfacing methods with the highly specialized Siemens SimCenter platform to perform expert acoustic simulations of the UniversalTimberSlab.
A novel LCA modelling method by harmonising existing frameworks and standards for timber products in the construction sector was developed and proposed to the LCA community.
Overall the UniversalTimberSlab project has been developing not only an innovative building system with appropriate modelling, simulation and robotic fabrication processes, but also has achieved already several methodological innovations that are applicable beyond the UniversalTimberSlab system.
