Comparison Of Multi-Storey Cross-Laminated Timber And Timber Frame Buildings By In Situ Modal Analysis

The dynamic properties of two common structural systems for multi-storey timber buildings are compared through in situ testing of completed buildings. The two five-storey buildings examined are identical except for their structural system, which in one is sheathed stud-and-rail timber construction, and in the other a cross-laminated timber panel system. Both also have a reinforced-concrete core located at the centre of one edge of the rectangular plan of each building. An output-only modal analysis method was used to identify the modal properties of the buildings: the random decrement technique was applied to the stochastic measured response, and then the time-domain random decrement signature was used for modal analysis by the Ibrahim Timeā€¦

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