Nonlinear Dynamic Analysis of Masonry Buildings and Definition of Seismic Damage States

Kappos, Andreas J.; Papanikolaou, Vassilis K.

doi:10.2174/1874836801610010192

Cited by 18 publications

(10 citation statements)

References 17 publications

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“…The introduction of five damage grades with quite similar definitions is also suggested by several other authors as Lang [14], Lagomarsino and Giovinazzi [15] and Kappos and Papanikolaou [16]. The introduction of five damage grades with quite similar definitions is also suggested by several other authors as Lang [14], Lagomarsino and Giovinazzi [15] and Kappos and Papanikolaou [16].…”

Section: Probabilistic Frameworkmentioning

confidence: 78%

“…The fragility curves are determined for damage grades as a function of the interstorey drift and the post-peak behaviour after exceeding the maximum displacement along the pushover curve. The introduction of five damage grades with quite similar definitions is also suggested by several other authors as Lang [14], Lagomarsino and Giovinazzi [15] and Kappos and Papanikolaou [16]. Furthermore, the concept is in line with the latest draft version of Eurocode 8, Part 3 [13], in which the ultimate displacement capacity is defined as the displacement at which total lateral resistance drops down below 80 % of the peak resistance of the structure, caused by progressive damage and failure of lateral load resisting elements.…”

Section: Probabilistic Frameworkmentioning

confidence: 83%

See 1 more Smart Citation

Investigation of the seismic performance of modern masonry buildings during the Emilia Romagna earthquake series

Rosin¹,

Butenweg²,

Cacciatore³

et al. 2018

Mauerwerk

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The article presents the investigation of the seismic behaviour of a modern URM building located in the municipality of Finale Emilia in province of Modena, Northern Italy. The building is situated in the centre of the series of the 2012 Northern Italy earthquakes and has not suffered any damage during the earthquake series in 2012. The observed earthquake resistance of the building is compared with predicted resistances based on linear and nonlinear design approaches according to Eurocode. Furthermore, probabilistic analyses based on nonlinear calculation models taking into account scattering of the most relevant input parameters are carried out to identify their influence to the results and to derive fragility curves.

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Section: Probabilistic Frameworkmentioning

confidence: 78%

Section: Probabilistic Frameworkmentioning

confidence: 83%

Investigation of the seismic performance of modern masonry buildings during the Emilia Romagna earthquake series

Rosin¹,

Butenweg²,

Cacciatore³

et al. 2018

Mauerwerk

View full text Add to dashboard Cite

show abstract

“…In the cases of irregular geometry, a macro-element discretisation of masonry elements is usually adopted, which is able to predict the seismic response with sufficient accuracy and with relatively low computational costs compared to those involved in the case of conventional nonlinear finite element modelling approaches [6].…”

Section: Equivalent Frame Modellingmentioning

confidence: 99%

“…A single failure mode interaction plastic hinge (an 'FMI hinge') for each masonry frame element is introduced by combining the specific failure modes, taking into account their minimum envelope. In the present paper, a nonlinear equivalent frame 3D mathematical model of the initial (fixed-base) structure was created in the structural analysis program SAP2000 [6] based on this technique. The model was extended to include the FRP-strengthened variant and the base-isolated variant of the building.…”

Section: Equivalent Frame Modellingmentioning

confidence: 99%

Seismic rehabilitation of masonry heritage structures with base-isolation and with selected contemporary strengthening measures

Kilar¹,

Petrovčič²

2017

Int. J. SAFE

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In the seismically active zones of southern and central Europe, unreinforced masonry (URM) structures are one of the most common types of buildings. Some of them possess a high historical value and could therefore be classified as part of the architectural heritage, requiring special attention with regard to their preservation and retrofitting measures. In practice, however, the accurate prediction of the seismic response of such structures often proves to be difficult, not only due to the complex geometrical features of their individual architectural parts, but also due to the composite and non-homogeneous nature of URM. Due to the great variety of structural configurations and materials used, rational approaches for the assessment of the seismic safety levels of such buildings are needed. The paper analyses the applicability of two contemporary seismic strengthening measures, namely the use of fibre-reinforced polymer composites and the implementation of base-isolation to achieve the desired, code-based seismic protection levels. A three-storey masonry building was considered in the study. Non-linear static analyses for different levels of seismic intensities were conducted on a mathematical model of the fixed-base, FRP-strengthened and base-isolated variants of the structure.

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“…Analyses of 3‐D frame model idealizations of URM buildings (eg, Lagomarsino et al and Kappos and Papanikolaou) are based on methods that were originally developed and tailored to the properties of modern frame structures. These procedures are intended for buildings with secured floor diaphragm action (eg, concrete slabs on masonry piers).…”

Section: Introductionmentioning

confidence: 99%

Methodology for practical seismic assessment of unreinforced masonry buildings with historical value

Pardalopoulos

Pantazopoulou

2017

Earthq Engng Struct Dyn

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Summary Historical constructions are part of the world heritage, and their survival is an important priority. Comprising mostly unreinforced, load‐bearing masonry, heritage buildings may date anywhere from antiquity to the 19th and early 20th century. Being exposed to the elements over the years, they are in various states of disrepair and material degradation. Based on postearthquake reconnaissance reports, these structures occasionally behave rather poorly, even in moderate seismic events, undergoing catastrophic damage and collapse, whereas retrofitting is governed by international conventions regarding noninvasiveness and reversibility of the intervention. The complexity of their structural systems (continuous structural components, lack of diaphragm action, material brittleness, and variability) challenges the established methods of condition assessment of preretrofitted and postretrofitted heritage constructions. The most advanced state of the art in materials and analysis tools is required, far more complex than with conventional buildings. Thus, an assessment procedure specifically geared to this class of structures is urgently needed, in order to assist engineers in this endeavor. The objective of this paper is the development of a performance‐based assessment framework that is palatable to practitioners and quite accurate in seismic assessment of unreinforced masonry buildings with no diaphragm action. The underlying theoretical background of the method is illustrated with reference to first principles: global demand is obtained from the design earthquake scenario for the region, using empirical estimates for the prevailing translational period of the system; deformation demands are localized using an approximation to the translational 3‐D shape of lateral response, estimated using a uniform gravitational field in the direction of action of the earthquake; acceptance criteria are specified in terms of relative drift ratios, referring to the in‐plane and the out‐of‐plane action of the masonry piers. The quantitative accuracy of the introduced procedure is evaluated through comparison with detailed time‐history dynamic analysis results, using a real life example case study. Qualitative relevance of the results is evaluated through comparison of the location and extent of anticipated damage estimated from the proposed assessment procedure, with reported records of the building damages that occurred during a significant past earthquake event.

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Nonlinear Dynamic Analysis of Masonry Buildings and Definition of Seismic Damage States

Cited by 18 publications

References 17 publications

Investigation of the seismic performance of modern masonry buildings during the Emilia Romagna earthquake series

Investigation of the seismic performance of modern masonry buildings during the Emilia Romagna earthquake series

Seismic rehabilitation of masonry heritage structures with base-isolation and with selected contemporary strengthening measures

Methodology for practical seismic assessment of unreinforced masonry buildings with historical value

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