White Paper: Flanking transmission in CLT

Straviwood ModuLink for reduced flanking transmission in CLT constructions: in-situ measurement campaign

Modular construction is a technique which consists of putting together wood 3D modules produced offsite. Wood modules consist of walls, floors and ceilings built as surface units and assembled into a self-supporting box, which is then connected to other boxes. Due to increasing time and budget specifications, modular construction methods are gaining more and more ground in the building and construction industry. This technique implies less work on-site, a lower volume of waste on-site and fabrication under controlled conditions.
As modular timber structures in cross-laminated timber (CLT) grow larger and higher, the modules need, from a structural point of view, to be more solidly connected to each other in the horizontal direction. This, unfortunately, results in acoustic contact bridges.

In preparation for a project in Alkmaar on Koelmalaan, a test arrangement was made with two 3D modules in cross-laminated timber to test them with various ways of interconnection. The connections were ranging from full dilatation (without any connection), rigid metal connections to 3 variants of brackets for structural joints with acoustic isolation features (Straviwood ModuLink) with different stiffnesses. Apart from these, no other connections were made in between the 2 modules.
Find more about the findings on this on-site test campaign that allowed the selection of the best solution for this project by getting your copy of a white paper on this matter.

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