Structural dynamic identification of a damaged and restored masonry vault using Ambient Vibrations

Çalık, İsmet; Bayraktar, Alemdar; Türker, Temel; Karadeniz, H.

doi:10.1016/j.measurement.2014.05.030

Cited by 39 publications

(13 citation statements)

References 7 publications

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“…Many methods and applications have been presented in the literature for damage identification based on vibration signatures [9,10], even for infrastructures [11], and some papers are devoted to monitoring masonry historical structures with operational modal analysis [12]. Presently, instead, there are only a few papers related to ambient vibration analysis on masonry vaulted structures [13], even less with the target of monitoring a masonry vault in its damaged and strengthened conditions [14].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of a Strengthened Barrel Vault

Primio¹,

Fiorini²,

Spina³

et al. 2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Structural monitoring and vibration-based identification methods are fundamental tools to help assessing the conditions of the structural state, in particular as it concern the conservation of historical buildings and the support to civil protection strategies. Although a large part of the Italian and European historical heritage is composed by masonry and vaulted structures, in the literature, comparatively few papers are targeted to the study of the dynamic behaviour of vaulted systems. The present work originates by a spontaneous collaboration between the Chieti/Pescara University and the Italian Civil Protection Department and focuses on the study of the dynamic behaviour of a barrel vault of the Bussi Castel located in Province of Pescara. The barrel vault suffered some damage as a consequence of the 2009 L'Aquila earthquake. Environmental vibration tests were carried out both in the damaged state and after repair and strengthening. In either conditions, the modal parameters of the vault were identified using operational modal analysis techniques. The comparison of the dynamic behaviour in the two states clearly indicates an improvement in the seismic behaviour of the consolidated vault. The results confirm the validity of structural monitoring for the evaluation of the effectiveness of the structural conditions of vaulted masonry systems.

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Section: Introductionmentioning

confidence: 99%

Monitoring of a Strengthened Barrel Vault

Primio¹,

Fiorini²,

Spina³

et al. 2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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show abstract

“…It was observed that there was a 25-53% drop in natural frequencies of the damaged slab compared to the undamaged slab [20]. e dynamic characteristics of the masonry vault of a historical building have been identified by using the ambient vibration test [21]. Realistic estimation of RC building periods and effect of infill walls on the dynamic characteristics were also investigated using AVM [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Determination of Period of RC Buildings by the Ambient Vibration Method

İnel

Özmen

Cayci

2019

Advances in Civil Engineering

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Determining the dynamic properties of structures is important for understanding their seismic behaviour. Ambient vibration signal measurement is one of the approaches used to determine the period of structures. Advantages of this method include the possibility of taking real-time records and presenting nondestructive and rapid solutions. In this study, natural vibration periods are calculated by taking ambient vibration signal records from 40 buildings. The height of the building, infill wall effect, presence of seismic retrofit, and presence of damage are taken into consideration, and their effects on natural vibration periods are investigated. Moreover, the results are compared with the analytical methods to reveal the differences. A significant correlation between the period and height of the building is observed. It is seen that the natural vibration periods of the buildings decrease by 7% to 30% (15% on average) due to infill wall contribution. However, the efficiency of infill walls decreases as the building height increases. Another significant result is that adding shear walls substantially decreases the vibration period values by 23% to 33% with respect to the shear wall ratio. When the analytical estimates and measured building period results are compared, it is seen that analytical models have closer period estimates before infill walls are implemented. The limited data in scope of the study suggest that significant differences may present in the analytical and measured periods of the buildings due to infill wall contributions.

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“…Çalık vd., tarihi yığma yapıların dinamik karakteristiklerine restorasyon etkisinin çevresel titreşim yöntemiyle belirlenmesi üzerine yaptıkları çalışmada Rize Merkez Büyük Gülbahar Camisinin restorasyon etkisi ile dinamik karakteristiklerinin değişimini incelemişlerdir [15]. Çalık vd., hasarlı ve güçlendirilmiş tonozun dinamik karakteristiklerinin çevresel titreşim yöntemi ile deneysel olarak belirlenmesi ve karşılaştırılması üzerine çalışmışlardır [16]. Fırat ve Eren, yedi adet kemer numunesinden oluşturulan kemerlere oluşturulan hasarlara karşı değişik FRP ile güçlendirme teknikleri deneysel olarak incelenmiştir [17].…”

Section: Gi̇ri̇ş (Introduction)unclassified