An Experimental Study On Building Vibration At Industrial Campus (UTeM)

Wong, Jiun Yet (2008) An Experimental Study On Building Vibration At Industrial Campus (UTeM). Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In this thesis, lightweight building vibration analysis will be performed at Academic Building in industrial campus of UTeM (Universiti Teknikal Malaysia Melaka). In this building, the vibration problem was typically caused by mechanically driven equipment such as Air Handling Unit (AHU). The vibration problem occurred since 2006 where the building was completed at 2005 which included marble slab damage and diagonal crack on the wall. Due to that, the objectives of this thesis are to study the building vibration and determine the natural frequency for a lightweight construction building. A conventional impact Bump Test was obtained to find out the natural frequency of the building by using hand-held vibration analyzer: Microlog CMVA 65. The Bump Test will conduct by follow the standard of ISO 4866 which is “Guide and measurement for vibration in buildings”. All the collected vibration data will be uploaded from Microlog to Machine Analyst software, to allow the vibration spectrum to be generated and natural frequency of building can be determined. Besides that, the Non Route Test will be carried out in order to determine the forcing frequency which is generated by AHU. On the other hand, an alternative way to determine natural frequency is using theoretical method which is Raleigh Method. After all the data‟s are obtained, the comparison of the natural frequency will be analyzed that included different levels of the building. The important findings from the analysis which is the marble slab damage was due to resonance occurred in level 4 and 5 in same area (near with check point 6) as well as the crack line in level 6 is suspected cause by AHU and might be other reasons. In addition vibration control will be proposed in this project in order to prevent the disturbance or potentially damaging vibration from being transmitted to the building structure.

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