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dc.contributor.authorYigit, Cemal Ozer
dc.contributor.authorEl-Mowafy, Ahmed
dc.contributor.authorAnil Dindar, A.
dc.contributor.authorBezcioglu, M.
dc.contributor.authorTiryakioglu, I.
dc.date.accessioned2021-03-08T23:33:10Z
dc.date.available2021-03-08T23:33:10Z
dc.date.issued2021
dc.identifier.citationYigit, C.O. and El-Mowafy, A. and Anil Dindar, A. and Bezcioglu, M. and Tiryakioglu, I. 2021. Investigating Performance of High-Rate GNSS-PPP and PPP-AR for Structural Health Monitoring: Dynamic Tests on Shake Table. Journal of Surveying Engineering. 147 (1).
dc.identifier.urihttp://hdl.handle.net/20.500.11937/82808
dc.identifier.doi10.1061/(ASCE)SU.1943-5428.0000343
dc.description.abstract

© 2020 American Society of Civil Engineers. This paper investigates the usability of Global Navigation Satellite System (GNSS) Precise Point Positioning (PPP) methods, traditional PPP with a float-ambiguity solution and with ambiguity resolution (PPP-AR), in structural health monitoring applications based on experimental tests using a single-axis shake table. To evaluate the performance of the PPP methodologies, harmonic oscillations of the motion table with amplitudes ranging from 5 to 10 mm and frequency between 0.1 and 3 Hz were generated representing a wide range of possible structural motions. In addition, ground motion similar to those experienced during a real earthquake, the 1995 Kobe earthquake, and step motions were generated on the shake table. GNSS PPP-derived positioning results at 20 Hz were compared, in both of the frequency and time domains, with reference data comprising LVDT data and relative positioning data. Results show that both PPP methods' measurements can be used in the computation of harmonic oscillation frequencies compared to the LVDT and relative positioning values. The observed amplitudes of the harmonic oscillations are slightly different from the LVDT values on the order of millimeters. The results of a step motion experiment demonstrated that PPP-AR is better than traditional PPP in exhibiting quasi-static or static displacement. Moreover, the capabilities of traditional PPP and PPP-AR methods are evaluated with respect to the natural frequency of a small-scale structural model excited on the shake table. The frequency spectrum of this small-scale structural model derived from the PPP methods is consistent with finite-element model (FEM)-predicted values and relative positioning. The research presented here demonstrates the potential of the high-rate GNSS PPP and PPP-AR methods to reliably monitor structural and earthquake-induced vibration frequencies and amplitudes for both structural and seismological applications. Specifically, all results reveal that high-rate PPP-AR is more accurate than traditional PPP for both dynamic and static displacement detection.

dc.titleInvestigating Performance of High-Rate GNSS-PPP and PPP-AR for Structural Health Monitoring: Dynamic Tests on Shake Table
dc.typeJournal Article
dcterms.source.volume147
dcterms.source.number1
dcterms.source.issn0733-9453
dcterms.source.titleJournal of Surveying Engineering
dc.date.updated2021-03-08T23:33:09Z
curtin.note

This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at 10.1061/(ASCE)SU.1943-5428.0000343.

curtin.departmentSchool of Earth and Planetary Sciences (EPS)
curtin.accessStatusOpen access
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidEl-Mowafy, Ahmed [0000-0001-7060-4123]
curtin.contributor.orcidYigit, Cemal Ozer [0000-0002-1942-7667]
curtin.contributor.researcheridYigit, Cemal Ozer [E-6059-2016]
dcterms.source.eissn1943-5428
curtin.contributor.scopusauthoridEl-Mowafy, Ahmed [7004059531]
curtin.contributor.scopusauthoridYigit, Cemal Ozer [24588387200]


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