Application of the interferometric radar for dynamic tests of corrugated steel plate (CSP) culvert

Bęben, Damian

doi:10.1016/j.ndteint.2011.04.001

Cited by 48 publications

(27 citation statements)

References 18 publications

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“…During train rides, four main phases of displacements were emphasized. The first phase represents impact of locomotive and two heavy wagons In order to evaluate the possibility of the interferometric radar application, at the same time, the inductive sensor and geodesic measurements (trigonometric and tachometric methods) were used [17]. The inductive sensor and targets were placed in the same cross section of the CSP culvert in which the special "transmission gear" was fixed.…”

Section: Test Results Analysis and Discussionmentioning

confidence: 99%

“…As a result of preliminary control testing in the lab and field it was found that the "transmission gear" was operated in a satisfactory manner. Beben [17] describes the details of the "transmission gear" validation method. Secondly, the tested railway culvert is made from corrugated steel plates (pitch of 0.15 m).…”

Section: Descriptions Of Tested Bridge Structures and Instrumentationsmentioning

confidence: 99%

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Application of Interferometry Method for Dynamic Continuous Testing of Bridges

Bęben

2016

Period. Polytech. Civil Eng.

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Section: Test Results Analysis and Discussionmentioning

confidence: 99%

Section: Descriptions Of Tested Bridge Structures and Instrumentationsmentioning

confidence: 99%

Application of Interferometry Method for Dynamic Continuous Testing of Bridges

Bęben

2016

Period. Polytech. Civil Eng.

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“…For the IBIS-S system, the bandwidth range B is 300 MHz, and thus a range resolution of up to 0.5 m can be obtained [10]. This means that each object point can be observed separately by not less than 0.5 m from another point along the radial direction [29]. Moreover, since the significant frequency content of time series displacements is in the range of 0-20 Hz for a civil engineering structure, the system is highly suited to analyzing the instantaneous dynamic response of Zhaozhou Bridge, with a sampling rate of up to 200 Hz to sample the scenario and a bandwidth of 300 MHz.…”

Section: Ground-based Microwave Interferometrymentioning

confidence: 99%

Dynamic Monitoring and Vibration Analysis of Ancient Bridges by Ground-Based Microwave Interferometry and the ESMD Method

Liu

Yang

et al. 2018

Remote Sensing

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Abstract:In this paper, we propose to conduct a dynamic monitoring and vibration analysis of ancient bridges by means of ground-based microwave interferometry and the extreme-point symmetric mode decomposition (ESMD) method. Ground-based microwave interferometry, a novel non-contact technology with a high accuracy, is used to acquire dynamic time series displacements with environmental excitation factors and a transient load with a car, respectively. The ESMD method, a new alternative to the Hilbert-Huang transform (HHT), is adopted to conduct the instantaneous vibration analysis of Zhaozhou Bridge. Firstly, a series of intrinsic mode functions (IMFs) are obtained together with an optimal adaptive global mean (AGM) curve by using a mode symmetric about the maxima and minima points. Secondly, the instantaneous frequency of each IMF is obtained by the use of a direct interpolation algorithm, which can reconcile the conflict between the period and the frequency for the traditional time-frequency analysis methods. As a representative case, Zhaozhou Bridge, a well-known Chinese ancient bridge constructed more than 1400 years ago, is studied in detail. Four kinds of dynamic time series displacements-two of them acquired by considering only environmental excitation factors for the mid-span and 1/4-span points and the others obtained with the transient load of a car for the mid-span and 1/4-span points-are selected to pursue a comparison of the decomposed IMFs and the instantaneous frequencies to perform the instantaneous vibration analysis of Zhaozhou Bridge. By comparing the results obtained with HHT for the decomposed IMFs and the instantaneous frequencies, the results show that the proposed method has a powerful ability to evaluate the instantaneous dynamic response of ancient bridges.

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“…The steel strands are the key load-carrying components in corrugated pipes. With high strength and low relaxation, steel strands exert pre-stress to strengthen concrete structures, such as high-rise buildings and suspension bridges (Beben 2011). The cement grouting is one of the most critical processes.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic Nondestructive Testing of Cement Grouting Quality in Corrugated Pipes Based on Impact-echo

Han

Cheng

Fan

et al. 2014

ACT

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This research aims to detect cement grouting defects in corrugated pipes using the ultrasonic impact-echo method. A combined signal processing technique that included de-convolution technique, information entropy and cross-correlation were proposed to identify and characterize defects. Several numerical models were constructed to simulate and analyze the results using the finite element method. The stripping size of the defects in the corrugated pipe was recognized by analyzing the information entropy and correlation coefficients of the echo signals. Experiments were carried out on a concrete specimen containing artificial defects with varying stripping sizes and numbers of elements. The experimental results were consistent with the simulated predictions.

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Application of the interferometric radar for dynamic tests of corrugated steel plate (CSP) culvert

Cited by 48 publications

References 18 publications

Application of Interferometry Method for Dynamic Continuous Testing of Bridges

Application of Interferometry Method for Dynamic Continuous Testing of Bridges

Dynamic Monitoring and Vibration Analysis of Ancient Bridges by Ground-Based Microwave Interferometry and the ESMD Method

Ultrasonic Nondestructive Testing of Cement Grouting Quality in Corrugated Pipes Based on Impact-echo

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