Movement detection on a concrete structure during traffic flow using Global Positioning System

• Published in: IOP conference series. Earth and environmental science 2018-06, Vol.169 (1), p.12034
• Main Authors: Masreta, M, Othman, Z, Abd Wahid, R, Zulkepli, M, Nasarularifin, K, Chee, Yee Wui
• Format: Article
• Language: English
• Subjects: Bridge loads; Concrete bridges; Concrete structures; Crack sensitivity; Global positioning systems; GPS; Motion detection; Motion perception; Movement; Peak hour traffic; Stations; Traffic flow; Traffic speed
• ISSN: 1755-1307; 1755-1315; 1755-1315
• DOI: 10.1088/1755-1315/169/1/012034

Global Positioning System (GPS) monitoring has been interested in a sensing technology of the structural responses to monitor the movement of a concrete bridge because basic data are obtained by field measurements. Two stations as a base station with a long observation situated at the embankment of the bridge. The establishment stations observation has been cover from morning until night. This paper explores the possibility movement of Sultan Idris Shah Bridge structure using static signals to enhance the measurement of total static movement response of a bridge structure. The results are shows with the two epochs actual movement motions generated by the motion of real work. The determination of movement of measuring points installed on the bridge is dividing into two times frame namely peak and non-peak hour. Those of error ellipse explain relationship between movement and traffic flow. The largest ellipse was register at non-peak hour. This is caused by the low volume of traffic flow in which average speed of vehicle at this period of time is about 50-60km/h. The analysis of the bridge movements, the current operational safety, the cause of bridge cracks, sensitivity of GPS signals, and its movements were observed under traffic loads. The comparative results demonstrate that the proposed technique can significantly enhance the measurement of the total movement of a structure.