Nonlinear Seismic Response Analysis of Realistic Gravity Dam-Reservoir Systems

Tzamtzis, A.D.

doi:10.1515/ijnsns.2003.4.4.329

Cited by 23 publications

(11 citation statements)

References 3 publications

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“…Therefore, it can be concluded that expanding masonry units in the simplified micro-modeling strategy may alter the accuracy of the analysis depending on the mortar joint relative thickness. Finally, it should be kept in mind that, although this procedure is preferred to the abovementioned detailed micro-modeling approach, it is still time consuming as the masonry structure size increases [103]. This modeling strategy has been used successfully in the literature to investigate nonlinear static and dynamic behavior of masonry wall elements [104][105][106][107][108][109], masonry buildings [110,111], ancient structures [112][113][114][115][116][117], stone masonry arches and aqueducts [117][118][119][120][121][122][123] and masonry infilled frames [124].…”

Section: Modeling Masonry As a Two-phase Materials (Simplified Micro-mmentioning

confidence: 99%

Stochastic Vulnerability Assessment of Masonry Structures: Concepts, Modeling and Restoration Aspects

et al. 2019

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A methodology aiming to predict the vulnerability of masonry structures under seismic action is presented herein. Masonry structures, among which many are cultural heritage assets, present high vulnerability under earthquake. Reliable simulations of their response to seismic stresses are exceedingly difficult because of the complexity of the structural system and the anisotropic and brittle behavior of the masonry materials. Furthermore, the majority of the parameters involved in the problem such as the masonry material mechanical characteristics and earthquake loading characteristics have a stochastic-probabilistic nature. Within this framework, a detailed analytical methodological approach for assessing the seismic vulnerability of masonry historical and monumental structures is presented, taking into account the probabilistic nature of the input parameters by means of analytically determining fragility curves. The emerged methodology is presented in detail through application on theoretical and built cultural heritage real masonry structures. leading to a final approval (or rejection) of the decisions already taken for repair or strengthening of the existing structure. Step 8: Explanatory ReportThe last step, as a result of the proposed methodology, includes the detailed "Explanatory Report", where all the collected information, the diagnosis, including the safety evaluation, and any decision to intervene should be fully detailed. This document is essential for eventual future analyses and interventions' measures in the structure. Computational and Mathematical AspectsIn this section, the most basic analytical constitutive laws and numerical models required for the successful implementation of the proposed methodology are presented in detail. In particular, the finite element model for the macro-modeling of masonry structures, the failure criteria, the damage indices, the performance levels and the mathematical background of fragility curves are presented.

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Section: Modeling Masonry As a Two-phase Materials (Simplified Micro-mmentioning

confidence: 99%

Stochastic Vulnerability Assessment of Masonry Structures: Concepts, Modeling and Restoration Aspects

et al. 2019

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“…According to Lourenco [127] & Asteris and Tzamtzis [13,14], the different analytical procedures could be summarized in the following three levels of refinement for masonry models:…”

Section: Modeling Of the Infill Panelmentioning

confidence: 99%

“…While this leads to more accurate results, the level of refinement means that any analysis will be computationally intensive, and will limit its application to small laboratory specimens and structural details. Sutcliffe et al [178] and Asteris and Tzamtzis [13,14] have proposed simplified micro-modeling procedures to overcome the problem.…”

Section: Modeling Masonry As a Three-phase Materialsmentioning

confidence: 99%

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Mathematical micromodeling of infilled frames: State of the art

Asteris

Cotsovos

Chrysostomou

et al. 2013

Engineering Structures

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204

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“…The significant importance of studying ancient buildings is especially felt by researchers from European countries, where the monumental and historical heritage is largely diffused on the territory [1][2][3][4][5]. As well known, studying masonry structures is much different from studying reinforced concrete constructions where analyses may be developed by means of commercial software.…”

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confidence: 99%

Statics and Equilibrium Paths of Masonry Stairs

Baratta¹,

Corbi²

2012

TOBCTJ

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In the paper one refers to some research under developments by the authors on specific stairs' typologies, in particular on cantilever and helical stairs, which are largely diffused in monumental buildings. The paper responds to professional practice which demands clear and sharp models for structural analysis and calculations, and simplified approaches for correctly interpreting their structural behaviour, and also for providing some indications supporting the design of proper refurbishments.

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Nonlinear Seismic Response Analysis of Realistic Gravity Dam-Reservoir Systems

Cited by 23 publications

References 3 publications

Stochastic Vulnerability Assessment of Masonry Structures: Concepts, Modeling and Restoration Aspects

Stochastic Vulnerability Assessment of Masonry Structures: Concepts, Modeling and Restoration Aspects

Mathematical micromodeling of infilled frames: State of the art

Statics and Equilibrium Paths of Masonry Stairs

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