Chapter 7: Vibration Performance Of Cross-Laminated Timber Floors

Cross-laminated timber (CLT) is proving to be a promising solution for wood to compete in building sectors where steel and concrete have traditionally predominated. Studies at FPInnovations found that bare CLT floor systems differ from traditional lightweight wood joisted floors with typical mass around 20 kg/m2 and fundamental natural frequency above 15 Hz, and heavy concrete slab floors with a mass above 200 kg/m2 and fundamental natural frequency below 9 Hz. Based on FPInnovations’ test results, bare CLT floors were found to have mass varying from approximately 30 kg/m2 to 150 kg/m2, and a fundamental natural frequency above 9 Hz. Due to these special properties, the existing standard vibration controlled design methods for lightweight…

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