Measurement of wind-induced response of buildings using RTK-GPS

Tamura, Yukio; Matsui, Masahiro; Pagnini, Luisa Carlotta; Ishibashi, Ryota; Yoshida, Akihito

doi:10.1016/s0167-6105(02)00287-8

Cited by 163 publications

(103 citation statements)

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“…Besides, various methods are used to determine meaningful frequency values, one of which is the Monte Carlo simulation (Heslop and Dekkers 2002 Usually, in order to re-create the clear signal with meaningful frequency values, in the frequency spectrum, the equality of the inverse Fourier transform is used. The equation is given below (Tamura et al 2002):…”

Section: Methodsmentioning

confidence: 99%

“…The success of the global positioning system (GPS) developed for navigation, in defining sudden seismic movements and very low displacements has inspired studies to investigate the definition of faster displacements (Nickitopoulou et al 2006). Studies in which GPS is employed in the observation of the high buildings were carried out by Ashkenazi and Roberts (1997), Brownjohn et al (1998Brownjohn et al ( , 2005, Chen et al (2001), Roberts et al (2001), Breuer et al (2002Breuer et al ( , 2008, Tamura et al (2002), Çelebi and Sanli (2002), Li (2004), Kijewski-Correa et al (2006), Kijewski-Correa and Kochly (2007), and Yigit et al (2010).…”

Section: Introductionmentioning

confidence: 99%

“…Tamura et al (2002) shows that it is possible to measure not only the dynamic components, but also the total displacement of the static components. Li (2004) placed an accelerometer on a 108 m high tower and recorded data at 10 and 20 Hz.…”

Section: Introductionmentioning

confidence: 99%

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Determining the behaviour of high-rise structures with geodetic hybrid sensors

Pehlivan

Aydın

Gülal

et al. 2013

Geomatics, Natural Hazards and Risk

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Observing the normal oscillations and the behaviours of high-engineering structures has become almost a necessity in terms of construction security and human health. For this purpose, an real-time kinematic GPS (NovAtel 400) and a tilt sensor (Leica Nivel20) were installed in a TV tower (220 m high) located in Istanbul, Turkey. The observation serials were recorded over a period of 9 days. All data-sets in X and Y directions were examined in the time domain and were analyzed using FFT€. The dominant frequency values (significant frequencies) were determined by comparing at the high-and low-frequency values. These dominant frequencies showed that the tower made 4-and 6-second short-period oscillations and 24-and 12-hour long-period oscillations. All the observation signals were re-created by the significant low-frequency values using the inverse Fourier transform. Thus, the motion model of the tower was determined over 9 days. In this study, the 24-hour and 12-hour periodic oscillations were defined that represent the behaviour of the tower in relation to the effect of the sun's radiation and the temperature changes.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Determining the behaviour of high-rise structures with geodetic hybrid sensors

Pehlivan

Aydın

Gülal

et al. 2013

Geomatics, Natural Hazards and Risk

View full text Add to dashboard Cite

show abstract

“…For the purpose of the movement monitoring of such facilities GNSS equipment is generally used with the measurement frequency of 10-20 Hz [5]. For the displacements of over 2 cm and natural frequency of 2 Hz or less real time kinematic (RTK) method [6] can be used. Different types of engineered structures such as dams, bridges, and high-rise buildings can feasibly be monitored using continuous GNSS.…”

Section: Introductionmentioning

confidence: 99%

Preliminary results of combined geodetic methods in monitoring

Grgić¹,

Repanić²,

Malović³

2017

Teh. vjesn.

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Subject reviewThe actual object movements can be examined by well designed and carefully performed observations and measurements. The processed and adjusted data are a precondition for analysis and interpretations of short and long-term predictions of object functionality. Beside periodic deformation observations, experimental measurements could be performed on selected objects. The purpose of such work is to determine the accuracy and improve the applied methods of measurement based on the analysis of theoretical errors and actual values of the facility shifts on a daily basis. On the business tower "Zagrepčanka" the GNSS measurements in relation to the nearest reference station from CROPOS (Croatian Positioning System) network were performed, combined with geometric levelling and gravity measurements. Analysis of measurement results that are presented in this paper provides an answer to the question to what extent one method can be controlled by another, or to what extent the application of a combination of different surveying methods affects the quality of the interpretation of the results. Keywords: deformations; GNSS; gravity; levelling; shifts Preliminarni rezultati kombiniranih geodetskih metoda u monitoringuPregledni članak Stvarno ponašanje objekta može se ispitati samo dobro osmišljenim i brižljivo izvedenim opažanjima i mjerenjima te na osnovu toga obradom i izjednačenjem mjerenja što je preduvjet za izvođenje analize i interpretacije kojom se daju kratkoročne ili dugoročne prognoze funkcionalnosti objekta. Pored periodičnih opažanja pomaka, izvode se i eksperimentalna mjerenja na odabranim objektima. Svrha takvih radova je u određivanje točnosti i poboljšanju primijenjenih metoda mjerenja na bazi analize teorijskih pogrešaka i stvarnih veličina pomaka na dnevnoj bazi. Eksperimentalna mjerenja na poslovnom tornju Zagrepčanka obuhvatila su GNSS mjerenja prema najbližoj referentnoj stanici iz CROPOS mreže, u kombinaciji s geometrijskim nivelmanom i gravimetrijskim mjerenjima. Analiza rezultata mjerenja koji su prikazani u ovom radu daje odgovor na pitanje u kojoj mjeri jedna metoda može kontolirati drugu, odnosno u kojoj mjeri primjena kombinacije različitih geodetskih mjerenja utječe na kvalitetu interpretacije rezultata.

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“…In order to achieve cm-level accuracy, the standard mode of precise differential GPS positioning locates one reference receiver at a base station whose three dimensional coordinates are known, so that the second receiver's coordinates are determined relative to this reference receiver. Preliminary studies have proven the technical feasibility of using GPS to monitor dynamic structural deformation due to winds, traffic, earthquakes and similar loading events in, e.g., the UK (Ashkenazi and Roberts, 1997), USA (Kilpatrick et al, 2003), Singapore (Brownjohn et al, 1998) and Japan (Tamura et al, 2002). Although GPS offers real-time solutions, it has its own limitations.…”

Section: Introductionmentioning

confidence: 99%

The Advantage of an Integrated RTK-GPS System in Monitoring Structural Deformation

Li¹

2004

J. of GPS

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Abstract. Monitoring structural response induced by severe loadings such as typhoon is an efficient way to mitigate or prevent damage. Because the measured signal can be used to activate an alarm system to evacuate people from an endangered building, or to drive a control system to suppress typhoon excited vibrations so as to protect the integrity of the structure. A 108m tall tower in Tokyo has been monitored by an integrated system combining RTK-GPS and accelerometers. Data collected by the multi-sensor system have been analysed and compared to the original finite element modeling (FEM) result for structural deformation monitoring studies. Especially, the short time Fast Fourier Transform (FFT) analysis results have shown that the time-frequency relation does give us almost instantaneous frequency response during a typhoon event. In this paper the feasibility of integrating advanced sensing technologies such as RTK-GPS with traditional accelerometer sensors, for structural vibration response and deformation monitoring under severe loading conditions, is discussed. The redundancy within the integrated system has shown robust quality assurance.

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Measurement of wind-induced response of buildings using RTK-GPS

Cited by 163 publications

References 0 publications

Determining the behaviour of high-rise structures with geodetic hybrid sensors

Determining the behaviour of high-rise structures with geodetic hybrid sensors

Preliminary results of combined geodetic methods in monitoring

The Advantage of an Integrated RTK-GPS System in Monitoring Structural Deformation

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