Seismic behaviour of the historical structural system of the island of Lefkada, Greece

Vintzileou, Elizabeth; Zagkotsis, A.; Repapis, Constantinos; Zeris, Christos

doi:10.1016/j.conbuildmat.2005.04.002

Cited by 51 publications

(38 citation statements)

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“…The first mode shape is close to a triangular one (Figure 8a). Compared to elastic analysis by Vintzileou et al (2007) for a similar, but two storey, building the first natural period is longer. This is attributed to the inclusion of the masonry infills in their model and the difference in the total height.…”

Section: Analysis and Pushover Curves Of The Typical Buildingmentioning

confidence: 94%

“… Point D refers to the displacement where all the base masonry piers have failed and the secondary system is activated. Masonry piers are generally repairable but permanent deformation (drift) may drive the repair cost over the cost of replacement (Vintzileou et al 2007). This damage state would correspond to the qualitative 22 description of the 'significant damage' limit state of Eurocode 8 (CEN 2004b) as regards the damage to the structural and non-structural members, permanent drifts and potentiality of restoring damage.…”

Section: Fragility Curves In Terms Of Spectral Displacementmentioning

confidence: 99%

“…The building foundation of the unreinforced masonry pier of the ground storey has the dimensions shown in Figure 11. In this case where SSI is taken into account the restraints of the piers are assumed pinned at their ends in line with the detailing shown in Figure 3c (Porphyrios 1971;Vintzileou et al 2007). The natural period of the initial system with SSI is T 1,1,SSI = 0.7 s and the activated mass is now lower (78%).…”

Section: Initial Systemmentioning

confidence: 99%

“…Constructions which could be a predecessor of the dual system have probably collapsed or been demolished, and were replaced by the antiseismic dual system (Touliatos 1995). The dual system has performed better than all other structures and hence, it has been selected as the appropriate construction type for Lefkas by the authorities (Vintzileou and Touliatos 2005). Specific regulations define the details of the construction techniques; among others the regulations specify the materials to be used in the construction, the thickness and the height of the ground storey walls.…”

Section: Description Of the Structural Systemmentioning

confidence: 99%

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Fragility Curves and Loss Estimation for Traditional Timber-Framed Masonry Buildings in Lefkas, Greece

Kouris

Kappos

2015

Computational Methods in Applied Sciences

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This is the accepted version of the paper.This version of the publication may differ from the final published version. Abstract The 2003 earthquake in the Greek island of Lefkas, has revived the interest for the local anti-seismic technique based on the use of timber-framed masonry, whose adequate performance during the earthquake revealed the merits of this rather sophisticated, albeit traditional, construction. A key feature of the Lefkas structures is their dual structural system. The secondary system is activated once the ground storey stone masonry piers of the primary system (which includes timber-framed masonry in all storeys) fail. In this regard, two different structural models are presented herein to simulate the response of each system. A macro-model based on nonlinear (NL) strut elements and point plastic hinges is intended to model the timber-framed masonry. NL analyses are carried out for one, two and three storey buildings , which represent the most common cases in Lefkas. Furthermore, an investigation is carried out regarding the foundation of the buildings resting on soft alluvial deposits. Pushover curves are derived from the NL analyses of the buildings and are then converted to capacity curves using the characteristics of the predominant mode. On these curves four damage states (slight damage, moderate damage, heavy damage, and collapse) are defined on the basis of criteria related to the actual response of the building. Then, fragility curves in terms of spectral displacement are generated, adopting a log-normal statistical distribution. These curves are converted into PGA values using a selected response spectrum. Utilising these fragility curves a seismic loss scenario for the 2003 Lefkas earthquake is developed for the timber-framed masonry stock of Lefkas city. Permanent repository link

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Section: Analysis and Pushover Curves Of The Typical Buildingmentioning

confidence: 94%

Section: Fragility Curves In Terms Of Spectral Displacementmentioning

confidence: 99%

Section: Initial Systemmentioning

confidence: 99%

Section: Description Of the Structural Systemmentioning

confidence: 99%

See 2 more Smart Citations

Fragility Curves and Loss Estimation for Traditional Timber-Framed Masonry Buildings in Lefkas, Greece

Kouris

Kappos

2015

Computational Methods in Applied Sciences

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“…They range, geographically and formally, from the infilled timber frames of the Pombaline architecture in Portugal, e.g. [3], through the timber framing of southern Italian "case baraccate", [4], to the timber frame-and-wall system found in Greece in the island of Leukada where a secondary frame parallels the stone masonry walls [5], again to Greece [6] and to the many solutions offered by Turkey, e.g. [7].…”

Section: Introductionmentioning

confidence: 99%

Seismic strengthening and seismic improvement of timber structures

Parisi

Piazza

2015

Construction and Building Materials

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In European seismic areas timber structures are found as building frames, in combination with masonry infills, in bridges, but most frequently in roof structures and floor slabs of traditional buildings. Seismic strengthening of existing structures should provide a well-defined and simple path to seismic forces, maintain timber members elastic, and develop as much as possible the post-elastic behaviour of joints. Provisions must be adopted to avoid sudden loss of capacity and brittle failure, and to foster ductility. Different criteria for seismic strengthening of floor slabs and of carpentry joints are presented.

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Study of Seismic Response of Traditional URM Houses Through Analytical Simulation—The Historical Core of the City of Xanthi

Papadopoulos

2015

Computational Methods in Applied Sciences

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Seismic behaviour of the historical structural system of the island of Lefkada, Greece

Cited by 51 publications

References 0 publications

Fragility Curves and Loss Estimation for Traditional Timber-Framed Masonry Buildings in Lefkas, Greece

Fragility Curves and Loss Estimation for Traditional Timber-Framed Masonry Buildings in Lefkas, Greece

Seismic strengthening and seismic improvement of timber structures

Study of Seismic Response of Traditional URM Houses Through Analytical Simulation—The Historical Core of the City of Xanthi

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