Ambient Vibration Testing for Story Stiffness Estimation of a Heritage Timber Building

Kang, Min; Kim, Junhee; Park, Sung-Ah; Park, Chansoo

doi:10.1155/2013/198483

Cited by 16 publications

(11 citation statements)

References 13 publications

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“…Multiple setups are required to cover all dofs . This is frequently encountered in field tests, and usually, reference locations are utilized to provide common information for individual setup . Conventionally, the modal parameters in each setup will be identified separately, and then the mode shapes in these setups need to be assembled to determine the global mode shape.…”

Section: Introductionmentioning

confidence: 99%

Field dynamic test and Bayesian modal identification of a special structure - the Palms Together Dagoba

Liu

2015

Struct. Control Health Monit.

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The Palms Together Dagoba at Famen Temple is a 12-story steel-reinforced concrete building, which comprises a vertical inversion and setback tubes with two inflection points formed along its height. It contains two towers with the first two and the top two floors connected, while the remaining floors are separated forming an irregular configuration. During its construction, an earthquake of 8.0 magnitude struck about 500 km away. The seismic intensity at the site is reported to be 6, which may result in some cracks for the local structures. This paper presents the work on field test 1 month after the earthquake and modal identification of the Dagoba. To determine the dynamic characteristics of this structure, ambient vibration tests were performed. Four setups were designed to cover all the degrees of freedom of interest involving the floors from the ground to the roof. A recently developed Bayesian method incorporating multi-setups was employed to identify the modal properties by using the data in all the setups simultaneously. In addition to the most probable values, the associated posterior uncertainties were also obtained, providing an estimation tool to assess the accuracy of the modal parameters. These results were utilized to investigate the modal properties of this structure. The influence due to the earthquake was also studied based on the observation in the field. Before the full-scale field tests, shaking table tests were also implemented. The dynamic properties from the two different tests, as well as their posterior uncertainties, were compared and discussed in the paper.

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Section: Introductionmentioning

confidence: 99%

Field dynamic test and Bayesian modal identification of a special structure - the Palms Together Dagoba

Liu

2015

Struct. Control Health Monit.

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“…and force balance type (for example EpiSensor FBA ES-T SA-107LNC etc.) accelerometers were commonly used for performing AVT on the heritage structures [Turek, Ventura and Placencia (2002); Bayraktar, Birinci, Altunişik et al (2009); Foti, Diaferio, Giannoccaro et al (2012); Min, Kim, Park et al (2013); Gentile, Saisi and Cobboi (2015)].…”

Section: Accelerometersmentioning

confidence: 99%

System Identification of Heritage Structures through AVT and OMA: A Review

Shimpi¹,

Sivasubramanian²,

Singh³

2019

Structural Durability &Amp; Health Monitoring

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In this review article, the past investigations carried out on heritage structures using Ambient Vibration Test (AVT) and Operational Modal Analysis (OMA) for system identification (determination of dynamic properties like frequency, mode shape and damping ratios) and associated applications are summarized. A total of 68 major research studies on heritage structures around the world that are available in literature are surveyed for this purpose. At first, field investigations carried out on heritage structures prior to conducting AVT are explained in detail. Next, specifications of accelerometers, location of accelerometers and optimization of accelerometer networks have been elaborated with respect to the geometry of the heritage structures. In addition to this, ambient vibration loads and data acquisition procedures are also discussed. Further, the state of art of performing OMA techniques for heritage structures is explained briefly. Furthermore, various applications of system identification for heritage structures are documented. Finally, conclusions are made towards errorless system identification of heritage structures through AVT and OMA.

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“…ey aimed to interpret the monitoring records for understanding the seismic and wind performance of heritage timber pagodas that have survived for many centuries and to show the long-term monitoring records of the horizontal displacement of the heritage structure. Min et al [13] studied the dynamic characteristics of a historic wooden structure by ambient vibration testing, presenting a novel estimation methodology of story stiffness for the purpose of vibration-based structural health monitoring. Zhang et al [14] used a prediction method in the frequency domain for predicting the vibrations in the Buddhist sutra depositary at Yangzhou Zhunti Temple by using a double-confirmation analysis method based on the autospectrum.…”

Section: Introductionmentioning

confidence: 99%

The Dynamic Properties of Historic Timber‐Framed Masonry Structures in Bursa, Turkey

Bagbanci

Bağbancı

2018

Shock and Vibration

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Timber-framed masonry structures are known as an effective earthquake load resisting system in high seismicity regions such as Bursa, Turkey. Intense earthquakes have occurred throughout history; however, many of the traditional timber structures have been able to survive without significant damage until the present day. In this study, six historic two-storied timber-framed masonry structures dating from the nineteenth century in Bursa City are investigated by using laboratory and in situ structural health monitoring tests. Although the houses have the same construction techniques, different masonry infill materials are used inside the timber frames. Stone, adobe, and brick are used as infill materials. Mud and lime mortars are used as binding materials. Mud mortar is used with stone and adobe materials. Lime mortar is used with brick material. The physical, mechanical, and dynamic parameters such as density, specific gravity, porosity, elastic modulus, frequencies, mode shapes, and damping ratios of the studied structures were investigated and the results were comparatively discussed. It is understood that the use of different infill materials affects the dynamic behaviors of these structures.

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Ambient Vibration Testing for Story Stiffness Estimation of a Heritage Timber Building

Cited by 16 publications

References 13 publications

Field dynamic test and Bayesian modal identification of a special structure - the Palms Together Dagoba

Field dynamic test and Bayesian modal identification of a special structure - the Palms Together Dagoba

System Identification of Heritage Structures through AVT and OMA: A Review

The Dynamic Properties of Historic Timber‐Framed Masonry Structures in Bursa, Turkey

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