Experimental testing, numerical modelling and seismic strengthening of traditional stone masonry: comprehensive study of a real Azorian pier

Costa, Alexandre A.; Arêde, António; Costa, Aníbal; Guedes, João Miranda; Silva, Bruno Luís

doi:10.1007/s10518-010-9209-3

Cited by 29 publications

(18 citation statements)

References 16 publications

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“…URM is neither a homogeneous nor an isotropic material. The assumed mechanical properties are an average of similar structures; for example, compressive strength is reported to vary between 2 to 4 MPa approximately [10,[22][23][24][25][26][27][28][29][30][31][32][33][34][35]. It is also known that URM is not an isotropic material [36,37]; nevertheless, the difference in the strength in the two axis for a biaxial stress state is not high [38][39][40][41][42][43][44], and thus, URM may be assumed isotropic without significant loss of accuracy.…”

Section: Modal Characteristics Of the Monumentmentioning

confidence: 99%

Dynamic Characteristics and Rocking Response of a Byzantine Medieval Tower

Kouris¹

2017

JCES

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Abstract-This investigation deals with the dynamic response of a Byzantine unreinforced masonry tower. The tower is located on Mount Athos and was erected in 1427. It was built to host the bells of Vatopedion Monastery and is 25 m tall. It has suffered several earthquakes during its history, and some restoration interventions have been applied. Firstly, the architectural characteristics are considered in the light of seismic events that hit the monument. Then, the modal characteristics are investigated using a linear analysis. Finally, the limit analysis is adopted to examine the behaviour of the tower up to collapse due to out-of-plane failure. A force-based and a displacement-based method are applied, and the respective capacities are converted into spectral quantities using properties of the first mode. Possible collapse mechanisms are considered in conjunction with the observed after-shock damage. The safety factor is derived comparing the capacity curves with the considered spectra.

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Section: Modal Characteristics Of the Monumentmentioning

confidence: 99%

Dynamic Characteristics and Rocking Response of a Byzantine Medieval Tower

Kouris¹

2017

JCES

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“…It should be noted that several researchers have worked on modeling of the behaviour of shear walls (see i.a. Vasconcelos and Lourenco 2006;Costa et al 2012a;Magenes and Calvi 1997;Brencich and Lagomarsino 1998), developing either sophisticated models or simple ones, adequate for use by practitioners as well.…”

Section: Masonry Elements Subjected To In-plane Shearmentioning

confidence: 99%

“…A full scale shaking table test on a 3-D specimen made of three-leaf masonry was performed by Costa et al (2012a). The subassembly-simulating a typical façade of historic buildings in the Azores-exhibited the same failure mechanisms, together with detachment of the leaves of masonry (Fig.…”

Section: Tests On Subassembliesmentioning

confidence: 99%

Testing Historic Masonry Elements and/or Building Models

Vintzileou

2014

Perspectives on European Earthquake Engineering and Seismology

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This paper provides an overview of the Literature on the behaviour of historic masonry elements and building models. The purpose of this paper is to identify the main parameters affecting the seismic behaviour of historic masonry buildings, as illustrated through the experimental campaigns carried out by numerous researchers. Furthermore, aspects of the seismic behaviour that are not sufficiently studied to-date are identified. Thus, selected publications are evaluated related to the behaviour of historic masonry elements in compression, in diagonal compression, in in-plane shear and simultaneous compression, out-of-plane bending, as well as publications related to the behaviour of subassemblies and building models subjected to monotonic, pseudo-dynamic or dynamic tests on earthquake simulator. The available experimental results illustrate the main weaknesses of historic masonry elements and bearing systems, namely the vulnerability to in-plane shear and to out-of-plane bending, the limited ductility, the negative effect of the flexibility of timber floors and roofs, etc. On the other hand, the beneficial effect of adequate connection between horizontal and vertical elements, as well as the connection among walls is also evident. Moreover, the variety of the construction types of masonry tested by various researchers, the scale of the models, the variety of experimental setups and loading histories do not allow, in most cases, a direct comparison of the experimental results. This is so especially as far as properties related to the deformations of masonry elements are concerned. Thus, the effort to develop sound physical models and to calibrate them is not yet satisfactorily assisted by the available experimental results. Yet, this is a prerequisite for a reliable assessment of the current state of historic structures and, by way of consequence, for the selection of adequate intervention techniques for their preservation.

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“…Depending on the objectives set for the analyses, this method can be applied to different detailing levels, from micro to macro elements. Works like the one presented in [2] follow a detailed micro modelling for masonry, dividing the material into its basic components. This kind of modelling is only adequate for studying local effects because it requires detailed knowledge of the masonry structure, geometrical characteristics, and has high computation demands.…”

Section: Introductionmentioning

confidence: 99%