Evaluation of amplitude-dependent damping and natural frequency of buildings during strong winds

Tamura, Yukio; Suganuma, Shin-ya

doi:10.1016/0167-6105(96)00003-7

Cited by 217 publications

(98 citation statements)

References 3 publications

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“…The results are considered to be less reliable where the results from the two repetitions diverge at the higher and lower amplitudes. This magnitude of variation between tests on the same structure is otherwise consistent with other results in the literature (Li et al, 2002;Tamura and Suganuma, 1996).…”

Section: Analysis Of Weak Non-linearitysupporting

confidence: 81%

“…Such tests have been widely used to extract modal properties from structures (Ceravolo and Abbiati, 2012;Beskhyroun et al, 2013;Farrar and James III, 1997;Magalhães et al, 2010;Snaebjörnsson and Ingolfsson, 2013). Jeary (1992Jeary ( , 1996 showed that outputonly techniques can be used not only to assess the modal properties of such structures, but also how those properties vary with amplitude of vibration, and his work led to studies to quantify that variation for tall buildings as wind speed varies (Li et al, 2002(Li et al, , 2003Tamura and Suganuma, 1996). In this study, the building was tested at two stages during construction, which allowed analysis of the influence of the non-structural elements added between the two tests on the measured modal properties.…”

Section: Introductionmentioning

confidence: 99%

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Ambient vibration tests of a cross-laminated timber building

Reynolds

Harris

Chang

et al. 2015

Proceedings of the Institution of Civil Engineers - Constructio

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Cross-laminated timber has, in the last 6 years, been used for the first time to form shear walls and cores in multi-storey buildings of seven storeys or more. Such buildings can have low mass in comparison to conventional structural forms. This low mass means that, as cross-laminated timber is used for taller buildings still, their dynamic movement under wind load is likely to be a key design parameter. An understanding of dynamic lateral stiffness and damping, which has so far been insufficiently researched, will be vital to the effective design for wind-induced vibration. In this study, an ambient vibration method is used to identify the dynamic properties of a seven-storey cross-laminated timber building in situ. The random decrement method is used, along with the Ibrahim time domain method, to extract the modal properties of the structure from the acceleration measured under ambient conditions.The results show that this output-only modal analysis method can be used to extract modal information from such a building, and that information is compared with a simple structural model. Measurements on two occasions during construction show the effect of non-structural elements on the modal properties of the structure.

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Section: Analysis Of Weak Non-linearitysupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Ambient vibration tests of a cross-laminated timber building

Reynolds

Harris

Chang

et al. 2015

Proceedings of the Institution of Civil Engineers - Constructio

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show abstract

“…Similar experiences with direct determination of correlation functions has helped propel the random decrement technique (RDT) as an alternative for autocorrelation estimation. The primary advantages in this case are the ability to relax stationarity requirements and capture mild nonlinearities in frequency and damping [Tamura and Suganuma, 1996]. To maintain faithfulness to the high-frequency base balance methodologies common to design practice, linear models are maintained in wind-resistant design and frequency and damping values used in these evaluations are then adjusted for events of varying return period to account for their amplitude dependence.…”

Section: Wind/ambient Vibration Applicationsmentioning

confidence: 99%

System Identification of Constructed Facilities: Challenges and Opportunities across Hazards

Kijewski-Correa

Taciroğlu

Beck

2008

Structures Congress 2008

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The motivation, success and prevalence of full-scale monitoring of constructed buildings vary considerably across the hazard of concern (earthquakes, strong winds, etc.), due in part to various fiscal and life safety motivators. Yet while the challenges of successful deployment and operation of large-scale monitoring initiatives are significant, they are perhaps dwarfed by the challenges of data management, interrogation and ultimately system identification. Practical constraints on everything from sensor density to the availability of measured input has driven the development of a wide array of system identification and damage detection techniques, which in many cases become hazard-specific. In this study, the authors share their experiences in fullscale monitoring of buildings across hazards and the associated challenges of system identification. The study will conclude with a brief agenda for next generation research in the area of system identification of constructed facilities.

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“…Acceleration response spectra of the Sinkarak Hydro Electric Power Plant (HEPP) bedrock records and BPKP GL simulation. [30] using the ambient vibration measurement data described in Section 2.2. Figure 22 shows the relationship between the story shear force and inter-story drift angle of each story, and Figure 23 compares the profile of the maximum inter-story drift angles from the timehistory analysis with the profile from the proposed procedure.…”

Section: Time-history Response Analysis Of the Bpkp Building Under Thmentioning

confidence: 99%

Seismic response estimation method for earthquake‐damaged RC buildings

Choi

Sanada

Kashiwa

et al. 2016

Earthq Engng Struct Dyn

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SUMMARYThis study proposes a procedure for identifying spectral response curves for earthquake-damaged areas in developing countries without seismic records. An earthquake-damaged reinforced concrete building located in Padang, Indonesia was selected to illustrate the identification of the maximum seismic response during the 2009 West Sumatra earthquake. This paper summarizes the damage incurred by the building; the majority of the damage was observed in the third story in the span direction. The damage was quantitatively evaluated using the damage index R according to the Japanese guidelines for post-earthquake damage evaluation. The damage index was also applied to the proposed spectral response identification method. The seismic performance of the building was evaluated by a nonlinear static analysis. The analytical results reproduced a drift concentration in the third story. The R-index decreased with an increase in the story drift, which provided an estimation of the maximum response of the building during the earthquake. The estimation was verified via an earthquake response analysis of the building using ground acceleration data, which were simulated based on acceleration records of engineering bedrock that considered site amplification. The maximum response estimated by the R-index was consistent with the maximum response obtained from the earthquake response analysis. Therefore, the proposed method enables the construction of spectral response curves by integrating the identification results for the maximum responses in a number of earthquake-damaged buildings despite a lack of seismic records.

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Evaluation of amplitude-dependent damping and natural frequency of buildings during strong winds

Cited by 217 publications

References 3 publications

Ambient vibration tests of a cross-laminated timber building

Ambient vibration tests of a cross-laminated timber building

System Identification of Constructed Facilities: Challenges and Opportunities across Hazards

Seismic response estimation method for earthquake‐damaged RC buildings

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