Performance-Based Seismic Vulnerability Evaluation of Masonry Buildings Using Applied Element Method in a Nonlinear Dynamic-Based Analytical Procedure

Karbassi, Amin; Nollet, Marie‐José

doi:10.1193/1.4000148

Cited by 50 publications

(29 citation statements)

References 37 publications

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“…For example, masonry buildings in Europe are separated depending on the structural material (stone, brick, concrete block), floor diaphragm type (flexible wood or rigid concrete) and the quality of material and construction [8,9,16,27,28]. Conducted building inventories in Eastern Canada identified two main types of unreinforced masonry (URM): stone masonry [15] and brick masonry [17] which, as the most frequent ones, were retained for this study. The later matches the description for URM buildings in Hazus-MH, which combines all types of floor diaphragms including wood or cast-in-place concrete floor.…”

Section: Background Of the Methodologymentioning

confidence: 99%

Earthquake Magnitude and Shaking Intensity Dependent Fragility Functions for Rapid Risk Assessment of Buildings

et al. 2018

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An integrated web application, referred to as ER 2 for rapid risk evaluator, is under development for a user-friendly seismic risk assessment by the non-expert public safety community. The assessment of likely negative consequences is based on pre-populated databases of seismic, building inventory and vulnerability parameters. To further accelerate the computation for near real-time analyses, implicit building fragility curves were developed as functions of the magnitude and the intensity of the seismic shaking defined with a single intensity measure, input spectral acceleration at 1.0 s implicitly considering the epicentral distance and local soil conditions. Damage probabilities were compared with those obtained with the standard fragility functions explicitly considering epicentral distances and local site classes in addition to the earthquake magnitudes and respective intensity of the seismic shaking. Different seismic scenarios were considered first for 53 building classes common in Eastern Canada, and then a reduced number of 24 combined building classes was proposed. Comparison of results indicate that the damage predictions with implicit fragility functions for short (M ≤ 5.5) and medium strong motion duration (5.5 < M ≤ 7.5) show low variation with distance and soil class, with average error of less than 3.6%.

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Section: Background Of the Methodologymentioning

confidence: 99%

Earthquake Magnitude and Shaking Intensity Dependent Fragility Functions for Rapid Risk Assessment of Buildings

et al. 2018

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“…2(c Corner-to-face or corner-to-ground contact Edge-to-edge contact 2013) where K b , and K m are the stiffness of bricks and mortar respectively, whereas K eq is the equivalent stiffness of brick-mortar interaction springs. According to Karbassi and Nollet (2013), normal stiffness, K n , and shear stiffness, K s , of brick springs are calculated considering the element geometry illustrated in Fig. 2(c) and incorporating elastic modulus of brick, E b and shear modulus of brick, G b , as follows:…”

Section: Applied Element Methodsmentioning

confidence: 99%

Seismic Performance Evaluation of Masonry Infilled Reinforced Concrete Buildings Utilizing Verified Masonry Properties in Applied Element Method

Zerin

Hosoda

Salem

et al. 2017

ACT

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Present study aims on evaluating the seismic performances of existing Masonry Infilled Reinforced Concrete (MIRC) buildings commonly found in many South and Southeast Asian countries utilizing appropriate masonry properties in Applied Element Method (AEM) models. First, masonry constituents and masonry composite properties were determined for different masonry meshes through extensive parametric studies verified through the experimental results of masonry prisms under uniaxial compression and half scaled masonry infilled RC frames under in-plane cyclic load. Next, the established infill properties were utilized for time history dynamic analysis of an existing 8-storied MIRC building for different AEM models including soft story, retrofitted soft story, infills in all floors and bare RC frames neglecting stiffness contribution of infills. The analytical results revealed: 1) the unpredicted soft story column failure compared to the similar bare RC frame, 2) the inability of infills to improve the seismic performance of the surrounding RC frames, 3) the effectiveness of steel plate jacketing for preventing soft story failure and, 4) the effect of the existence of overhead water tanks on the alteration of seismic behavior of RC buildings.

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“…As demonstrated in Tagel‐Din and Meguro, the Poisson effect is accounted intrinsically by the AEM, whereas the RBSM formulation requires additional DOFs or the spring stiffness manipulation . Finally, unlike the AEM, analysis up to complete collapse of a structure using RBSM is unattainable, since the latter does not consider the recontact between neighbouring elements (if different from the ones initially set), as noted in Bakeer and Furukawa et al In this work, the use of the AEM in the modelling of (CS) masonry walls is further discussed and verified.…”

Section: Introductionmentioning

confidence: 90%

Using the applied element method for modelling calcium silicate brick masonry subjected to in‐plane cyclic loading

Malomo

Pinho

Penna

2018

Earthq Engng Struct Dyn

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Summary The response of calcium silicate unreinforced masonry construction to horizontal cyclic loading has recently become the focus of experimental and numerical research, given its extensive use in some areas of the world that are now exposed to induced earthquakes (eg, north of the Netherlands). To assess the seismic behaviour of such construction, a relatively wide range of modelling methodologies are available, amongst which the discrete elements approach, which takes into account the intrinsic heterogeneity of a brick‐mortar assembly, can probably be deemed as the most appropriate computational procedure. On the other hand, however, since discrete elements numerical methods are based on a discontinuum domain, often they are not able to model every stage of the structural response adequately, and because of the high computational burden required, the analysis scale should be chosen carefully. The applied element method is a relatively recent addition to the discrete elements family, with a high potential for overcoming the aforementioned limitations or difficulties. Initially conceived to model blast events and concrete structures, its use in the earthquake engineering field is, of late, increasing noticeably. In this paper, the use of the applied element method to model the in‐plane cyclic response of calcium silicate masonry walls is discussed and scrutinised, also through the comparison with experimental results of in‐plane cyclic shear‐compression tests on unreinforced masonry walls.

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Performance-Based Seismic Vulnerability Evaluation of Masonry Buildings Using Applied Element Method in a Nonlinear Dynamic-Based Analytical Procedure

Cited by 50 publications

References 37 publications

Earthquake Magnitude and Shaking Intensity Dependent Fragility Functions for Rapid Risk Assessment of Buildings

Earthquake Magnitude and Shaking Intensity Dependent Fragility Functions for Rapid Risk Assessment of Buildings

Seismic Performance Evaluation of Masonry Infilled Reinforced Concrete Buildings Utilizing Verified Masonry Properties in Applied Element Method

Using the applied element method for modelling calcium silicate brick masonry subjected to in‐plane cyclic loading

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