NDLI: Effective techniques for assessing the safety of building structures with the emphasis on lift ropes and pipes

Content Provider	IEEE Xplore Digital Library
Author	Tse, P.W.
Copyright Year	2012
Description	Author affiliation: The Smart Engineering Asset Management Laboratory (SEAM) and the Croucher Optical Non-destructive Testing and Quality Inspection Laboratory (CNDT), Department of Systems Engineering and Engineering Management, City University of Hong Kong, Hong Kong (Tse, P.W.)
Abstract	Safety and maintenance of building structures have become a prime concern as there are millions of buildings in China. Lifts and pipes are crucial infrastructure integrated in most of building. Ropes are used to hoist or support lifts. Pipes are used to transfer water or gas to each household unit of a building. In modern cities, natural gas is a major fuel source for heating and cooking. Gas pipe risers are used to distribute natural gas to each household unit in buildings. These gas risers are erected along the external wall of the buildings and penetrated into each household unit through the concrete wall of the buildings. According to the recent statistic figures provided by the Towngas in Hong Kong, there are over 12.93 million and 1.75 million household units that have such gas risers in Mainland and Hong Kong, respectively. Both pipes and ropes are prone to defects due to their aging and suffering from external impacts during operation. For instance, suddenly broken ropes can cause their hoisted lifts plunge to the ground, resulting in human casualties. Severe damage in natural gas pipes could cause pollution to the environment, huge economic losses, and even become hazardous to human lives. Therefore, there is a crucial need to develop effective methods for ensuring the safety and proper maintenance of lift ropes and pipes in buildings. This paper presents advanced and effective techniques, which include ultrasonic guided waves, active thermography and other non-destructive evaluation means for inspecting the safety of lift ropes and building pipes. The problems and difficulties involved in inspecting ropes and pipes in buildings are discussed. A number of experiments are used to demonstrate the effectiveness of these techniques. With the help of these advanced techniques, the buildings are safer to live in with less frequency in service breakdown and reduced chance that catastrophe may occur because of the sudden failure of ropes and rupture of pipes.
Starting Page	1
Ending Page	5
File Size	1483910
Page Count	5
File Format	PDF
ISBN	9781457719097
ISSN	21665656
e-ISBN	9781457719110
e-ISBN	9781457719103
DOI	10.1109/PHM.2012.6228770
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Building nondestructive testing fault diagnosis Corrosion Heating buildings lift rope Generators Reflection pipe Biomedical imaging
Content Type	Text
Resource Type	Article

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