DYNAMIC BEHAVIOUR OF GLULAM TIMBER FLOOR DUE TO HEEL DROP AND WALKING TEST

Iffa, Izzati (2018) DYNAMIC BEHAVIOUR OF GLULAM TIMBER FLOOR DUE TO HEEL DROP AND WALKING TEST. Bachelor Degree thesis, UTHM.

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Abstract

This research was conducted due to annoying floor vibration that occurred in the two-storey building located at Pasir Gudang, Johor. The floor system of this building is constructed using glulam timber floor. However, due to the light weight of timber, the floor that is constructed using this material will result in noticeable floor vibrations. Whenever there is load induced on the floor like walking and jumping, occupants will feel the vibration of the floor and this will cause discomfort and unsafe feeling for the occupants of the building. The main factor that contributes to the increase in the annoying levels of floor vibrations is a low natural frequency of the floor as a result of long-span and lightweight construction. Therefore, a research has been done to (1) examine the glulam timber floor using experimental modal testing and (2) to determine the dynamic behaviour of glulam timber floor. Two type of test has been carried out in order to determine the vibration behaviour of glulam timber floor which is (1) walking test and (2) heel drop test. Results of the measured data were further analysed using ME’ Scope and ARTeMIS software to determine the modal parameters of the floor which are natural frequencies and mode shapes. From the analysis done, the fundamental frequencies obtained for this glulam timber floor is in the range 3.468 Hz to 5.923 Hz which below the 8 Hz limitation according to Eurocode 5. Hence, the building is considered as low frequency building and this explains the excessive vibrations felt by occupants of the building.

Item Type: Thesis (Bachelor Degree)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Civil and Environmental Engineering > Department of Structural and Materials Engineering
Depositing User: PSM Coordinator JKSB
Date Deposited: 05 Aug 2018 08:21
Last Modified: 05 Aug 2018 08:21
URI: http://ethesis.uthm.edu.my/id/eprint/1018

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