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Lookup NU author(s): Dr Haoyu HuangORCiD
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© WCTE 2018 Committee.The feasibility of utilising a shape memory alloy (SMA) in a tuneable mass damper to reduce the excessive vibration of a timber floor system was revealed in a pilot study. In real cases, the in-service excitations on a timber floor can be complex, and more frequencies and randomness can be involved. This paper aims to appraise the effectiveness of the SMA-based semi-active TMD in a real-scale timber floor by conducting OPENSEES numerical analysis. In this study, the human walking footfall-induced vibration is considered as inputs. When the floor-TMD system is subject to walking, which involves relatively low dominant frequencies, cooling the SMA is effective in reducing the off-tuning excessive vibration caused by increasing floor mass. Contrary to expectations, there is no increased vibration in the off-tuning condition caused by decreasing floor mass, because the response at the lower frequency range decreases.
Author(s): Huang H, Chang W-S
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: WCTE 2018 - World Conference on Timber Engineering
Year of Conference: 2018
Online publication date: 20/08/2018
Acceptance date: 02/04/2016
Publisher: World Conference on Timber Engineering (WCTE)
URL: http://www.wcte2018.kr/home/
