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Structural health monitoring of a reinforced concrete building during the severe typhoon Vicente in 2012.

Kuok SC, Yuen KV - ScientificWorldJournal (2013)

Bottom Line: The wind characteristics were analyzed using the measured wind data including the wind speed and wind direction time histories.Besides, the structural response measurements of the monitored building were utilized for modal identification using the Bayesian spectral density approach.Detailed analysis of the field data and the typhoon generated effects on the structural performance are discussed.

View Article: PubMed Central - PubMed

Affiliation: Department of Civil and Environmental Engineering, University of Macau, Macau.

ABSTRACT
The goal of this study is to investigate the structural performance of reinforced concrete building under the influence of severe typhoon. For this purpose, full-scale monitoring of a 22-story reinforced concrete building was conducted during the entire passage process of a severe typhoon "Vicente." Vicente was the eighth tropical storm developed in the Western North Pacific Ocean and the South China Sea in 2012. Moreover, it was the strongest and most devastating typhoon that struck Macao since 1999. The overall duration of the typhoon affected period that lasted more than 70 hours and the typhoon eye region covered Macao for around one hour. The wind and structural response measurements were acquired throughout the entire typhoon affected period. The wind characteristics were analyzed using the measured wind data including the wind speed and wind direction time histories. Besides, the structural response measurements of the monitored building were utilized for modal identification using the Bayesian spectral density approach. Detailed analysis of the field data and the typhoon generated effects on the structural performance are discussed.

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Related in: MedlinePlus

Time histories of the identified structural modal parameters.
© Copyright Policy - open-access
Related In: Results  -  Collection


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fig12: Time histories of the identified structural modal parameters.

Mentions: Figure 12 shows the identified modal frequencies and damping ratios of the building with the associated estimation uncertainties. The identified modal frequencies are shown in the left column while the identified damping ratios are shown in the right column. The solid lines represent the identified values, and the dotted lines represent the plus and minus three standard derivations confidence intervals (i.e., ±3σ of the estimates) which yield a probability of 99.7%. Since the building may not behave linearly under the severe wind excitation, the identified structural modal parameters are referred to the corresponding quantities of the equivalent linear system.


Structural health monitoring of a reinforced concrete building during the severe typhoon Vicente in 2012.

Kuok SC, Yuen KV - ScientificWorldJournal (2013)

Time histories of the identified structural modal parameters.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3824557&req=5

fig12: Time histories of the identified structural modal parameters.
Mentions: Figure 12 shows the identified modal frequencies and damping ratios of the building with the associated estimation uncertainties. The identified modal frequencies are shown in the left column while the identified damping ratios are shown in the right column. The solid lines represent the identified values, and the dotted lines represent the plus and minus three standard derivations confidence intervals (i.e., ±3σ of the estimates) which yield a probability of 99.7%. Since the building may not behave linearly under the severe wind excitation, the identified structural modal parameters are referred to the corresponding quantities of the equivalent linear system.

Bottom Line: The wind characteristics were analyzed using the measured wind data including the wind speed and wind direction time histories.Besides, the structural response measurements of the monitored building were utilized for modal identification using the Bayesian spectral density approach.Detailed analysis of the field data and the typhoon generated effects on the structural performance are discussed.

View Article: PubMed Central - PubMed

Affiliation: Department of Civil and Environmental Engineering, University of Macau, Macau.

ABSTRACT
The goal of this study is to investigate the structural performance of reinforced concrete building under the influence of severe typhoon. For this purpose, full-scale monitoring of a 22-story reinforced concrete building was conducted during the entire passage process of a severe typhoon "Vicente." Vicente was the eighth tropical storm developed in the Western North Pacific Ocean and the South China Sea in 2012. Moreover, it was the strongest and most devastating typhoon that struck Macao since 1999. The overall duration of the typhoon affected period that lasted more than 70 hours and the typhoon eye region covered Macao for around one hour. The wind and structural response measurements were acquired throughout the entire typhoon affected period. The wind characteristics were analyzed using the measured wind data including the wind speed and wind direction time histories. Besides, the structural response measurements of the monitored building were utilized for modal identification using the Bayesian spectral density approach. Detailed analysis of the field data and the typhoon generated effects on the structural performance are discussed.

Show MeSH
Related in: MedlinePlus