Structural damage detection based on the reconstructed phase space for reinforced concrete slab: Experimental study

Nie, Zhenhua; Hao, Hong; Ma, Hongwei

doi:10.1016/j.jsv.2012.08.024

Cited by 27 publications

(27 citation statements)

References 41 publications

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“…Change of Phase Space Topology (CPST) index was proposed to detect damages of reinforce concrete slab (Nie et al 2013). The index measures how much difference of a damage state from a predicted damage state.…”

Section: Change Of Phase Space Topology (Cpst) As a Damage Indexmentioning

confidence: 99%

“…For the field of Civil engineering, the phase space analysis has been adopted and developed. The damage index called Change of Phase Space Topology (CPST) (Nie et al 2013) was proposed and used to detect damages of continuous reinforce concrete slab. They found that the CPST index was very effective in identifying the existence of damages because its values increased with damage levels regardless of damage location.…”

Section: Introductionmentioning

confidence: 99%

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PC Tendon Damage Detection Based on Change of Phase Space Topology

Tuttipongsawat

Sasaki

Suzuki

et al. 2018

ACT

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PC tendon is a vital component for strength of prestressed concrete structure. However, there is no warning sign when it is degraded or damaged, because of its invisibility from outside. Vibration-based method is one of the technique for damage detection due to simplicity. However, the extensively used method such as modal-based analysis is still insensitive to such damages. Recently, phase space-based analysis, a novel method for damage detection, was adopted in Civil engineering and a new index called Change of Phase Space Topology (CPST) has been developed. It is effective in identifying the damage existence regardless a known of damage location. Therefore, this paper adopted such technique to investigate damages of PC tendon. A pretension concrete girder with artificial PC tendon damages was used in experiment and it was excited by two vibration tests; free vibration and impact hammer test. The CPST values and the results from modal-based analysis were investigated and compared. The index shows increasing trend with increasing of damage levels. Moreover, it is more sensitive to the PC tendon damages than the results from modal-based analysis. This implies that CPST might be an effective index to detect the damages of PC tendon.

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Section: Change Of Phase Space Topology (Cpst) As a Damage Indexmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

PC Tendon Damage Detection Based on Change of Phase Space Topology

Tuttipongsawat

Sasaki

Suzuki

et al. 2018

ACT

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“…Therefore, a significant amount of measured data is collected every day, and the data interpretation is particularly important when using SHM techniques for asset management. The data‐driven methods, in which historical data are only required to extract the mapping relationships between damage features and damage modes instead of building the exact models of processes, have been widely developed for SHM applications in recent years, such as machine learning, wavelet‐based method, sparse component analysis (SCA), phase space‐based methods, multivariate statistical method, Hilbert–Huang transform (HHT) methods, and artificial intelligence (AI) method.…”

Section: Introductionmentioning

confidence: 99%

Bridge condition monitoring using fixed moving principal component analysis

Nie

Guo

et al. 2020

Struct Control Health Monit

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Summary This paper proposes a data‐driven damage detection method based on fixed moving principal component analysis (FMPCA) to analyze structural dynamic responses and monitor the bridge operational condition and the damage occurrence. The damage indices based on principal components (PCs) and eigenvalues can be calculated continuously by applying a fixed moving window. The length of the moving window is determined by using a new criterion based on the convergent spectrum of cumulative contribution ratio. Numerical simulations and experimental tests in the laboratory on beam bridge models subjected to stochastic loads are conducted to investigate the accuracy and effectiveness of the proposed approach. Both simulation and experimental results indicate that using the FMPCA can well analyze the dynamic vibration data to detect damage or abnormal vibration behavior during the operational condition. It can be used to accurately monitor the time instant of damage occurrence, which is very important in long‐term monitoring of civil engineering structures. The proposed method is successfully applied to analyze the data recorded during an incident that a real large‐scale suspension bridge was slightly scraped by the mast of a sand ship, which further verifies the effectiveness and feasibility of this method in engineering applications. The results also indicate that the bridge was not damaged after the incident but presented a short time abnormal vibration behavior owing to the impact of the ship mast.

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“…An index called Change of Phase Space Topology (CPST) was proposed. Later, they used it in an experiment to indicate damage in concrete slabs using acceleration data (Nie et al 2013). They found that the CPST index was very effective in identifying the existence of damage because its values increase with damage level regardless of damage location.…”

Section: Introductionmentioning

confidence: 99%

PC Tendon Damage Detection Based on Phase Space Topology Changes in Different Frequency Ranges

Tuttipongsawat

Sasaki

Suzuki

et al. 2019

ACT

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Damage of PC tendons in a prestressed concrete structure need to be detected before such damage accumulates to cause a serious failure. That, however, is quite a difficult task because the PC tendons are invisible from outside and the damage location cannot be known beforehand. Phase space analysis based on vibration data is a novel method for damage detection. An earlier study by the authors demonstrated that Change of Phase Space Topology (CPST) was effective in identifying the existence of PC tendon damage. However, CPST from impact hammer test, which is a more practical method, did not show a trend as obvious as that of the free vibration test. As it is known that PC tendon damage affects several modes of vibrations and that the hammer can be used for excitation to the higher modes, it may be possible to improve the capability of impact hammer test by considering CPST separately in different frequency ranges. As in the previous study, the current study conducted experiments on PC tendon damage, but with an increased number of accelerometers for constructing mode shapes and investigated CPST further in different frequency ranges. The results still revealed that CPST was more sensitive to damage than the parameters from modal-based analysis. CPST in different frequency ranges can improve results from impact hammer test and has the capability to identify roughly the damage locations.

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Structural damage detection based on the reconstructed phase space for reinforced concrete slab: Experimental study

Cited by 27 publications

References 41 publications

PC Tendon Damage Detection Based on Change of Phase Space Topology

PC Tendon Damage Detection Based on Change of Phase Space Topology

Bridge condition monitoring using fixed moving principal component analysis

PC Tendon Damage Detection Based on Phase Space Topology Changes in Different Frequency Ranges

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