Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/220181
Title: APPLICATION OF INFRARED THERMOGRAPHY ON LOOSENED BOLTED CONNECTION FOR FAçADE INSPECTION
Authors: TAN LIN HUA
Keywords: Building
PFM
Project and Facilities Management
Chew Yit Lin Michael
2019/2020 PFM
Public Housing
Falling Façade
Architectural Features
Infrared Thermography
Bolted Connection
Issue Date: 2019
Citation: TAN LIN HUA (2019). APPLICATION OF INFRARED THERMOGRAPHY ON LOOSENED BOLTED CONNECTION FOR FAçADE INSPECTION. ScholarBank@NUS Repository.
Abstract: In recent years, there is a rising cases of falling façade in the public housing estate of Singapore. Some of these incidents involve architectural features, such as decorative metal panels, to be seen falling from height. While these events have not resulted in any death or injuries, it has instilled a sense of fear in the resident community. Furthermore, it is realised that bolted connections primarily attach the architectural features in the Singapore public housing façade. The author is interested in utilising infrared thermography (IRT) to detect loosened bolted connection that is not easily detected by human eyes to offer an additional layer of information in collaboration with optical examination to improve facade inspection. Therefore, the objective of this dissertation is to experiment, to investigate the feasibility of IRT application into façade inspection with the focus on bolted connection. It was hypothesised that the loosened bolted connection of different loosened distances is detectable in the thermograms. A passive IRT experiment was conducted with stainless-steel sheet and stainless-steel bolts and nuts to detect the loosened bolted connection with an infrared camera. From the experiment, the thermograms captured can detect the loosened bolted connection. However, determining the degree of loosened distance by the nut is challenging as the thermograms between different loosened nut can look similar. The deliverable of this research is a set of guidelines for passive IRT to detect loosened bolted connection. The simple experiment setup limits this research as it was conducted to ease findings to determine IRT adoption into façade inspection.
URI: https://scholarbank.nus.edu.sg/handle/10635/220181
Appears in Collections:Bachelor's Theses

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