Probabilistic seismic performance and loss evaluation of a multi-story steel building equipped with butterfly-shaped fuses

Esteghamati, Mohsen Zaker; Farzampour, Alireza

doi:10.1016/j.jcsr.2020.106187

Cited by 30 publications

(9 citation statements)

References 40 publications

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“…Three popular procedures are available to estimate P(EDP > edp|I M) using nonlinear dynamic analysis: cloud analysis [39], multiple stripe analysis (MSA) [40], and incremental dynamic analysis (IDA) [41]. IDA successively scales the selected GMs to increasing amplitude using the same GM suite [42,43], whereas MSA uses different GMs at different hazard levels. In cloud analysis, structures are subjected to a large number of records, and the relationship between IM and EDP (i.e., a cloud of IM-EDP data points) is modeled using a regression model [44].…”

Section: Structural Analysis Proceduresmentioning

confidence: 99%

A Holistic Review of GM/IM Selection Methods from a Structural Performance-Based Perspective

Esteghamati

2022

Sustainability

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Current fully probabilistic approaches to performance-based earthquake engineering describe structures’ behavior under a wide range of seismic hazard levels. These approaches require a detailed representation of ground motion (GM) uncertainty at all considered hazard levels, yet different GM selection methods lead to different estimations of structural performance. This paper presents a holistic review of the current practices in GM representation and selection for structural demand analysis through a performance-based lens. The multidisciplinary nature of GM selection, ranging from earth science to engineering seismology and statistics, has created a preponderance of literature to find the best practice for probabilistic assessment of structures in terms of computational efficiency and statistical accuracy. Many of these studies focus individually on GM selection or structural analysis, and the relatively scarce review papers either focus on code-based GM selection or do not specifically address risk-based evaluations by overlooking the interaction between GM selection and structural analysis. This paper aims to aid researchers in selecting appropriate GMs as part of a statistically valid and robust probabilistic demand analysis without performing an exhaustive literature review. Discussion on the available computational tools and their trade-offs for risk-based assessment of single structures is provided. While the problem-specific nature of GM selection means that no pre-selected set of GM/IM is applicable to all cases, the comprehensive narrative of this paper is expected to aid analysts in reaching a more informed decision.

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Section: Structural Analysis Proceduresmentioning

confidence: 99%

A Holistic Review of GM/IM Selection Methods from a Structural Performance-Based Perspective

Esteghamati

2022

Sustainability

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“…The IDA approach, the most detailed structural assessment approach, was developed as a method for determining the relationship between the structural failure and the intensity measures [36,37]. Subsequently, this approach has been used as the basis for a number of standards (such as FEMA P-695 [38]) and by researchers [39][40][41][42][43][44][45][46] for the assessment of the hazard level of the structural model. In addition, a number of studies [47][48][49][50] have been conducted with the aim of strengthening the engineering structures.…”

Section: Introductionmentioning

confidence: 99%

Conventional RVS Methods for Seismic Risk Assessment for Estimating the Current Situation of Existing Buildings: A State-of-the-Art Review

Bektaş

Kegyes-Brassai

2022

Sustainability

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Developments in the field of earthquake engineering over the past few decades have contributed to the development of new methods for evaluating the risk levels in buildings. These research methods are rapid visual screening (RVS), seismic risk indexes, and vulnerability assessments, which have been developed to assess the levels of damage in a building or its structural components. RVS methods have been proposed for the rapid pre- and/or post-earthquake screening of existing large building stock in earthquake-prone areas on the basis of sidewalk surveys. The site seismicity, the soil type, the building type, and the corresponding building characteristic features are to be separately examined, and the vulnerability level of each building can be identified by employing the RVS methods. This study describes, evaluates, and compares the findings of previous investigations that utilized conventional RVS methods within a framework. It also suggests the methods to be used for specific goals and proposes prospective enhancement strategies. Furthermore, the article discusses the time-consuming RVS methods (such as FEMA 154, which requires from 15 to 30 min, while NRCC requires one hour), and provides an overview of the application areas of the methods (pre-earthquake: FEMA 154, NRCC, NZEE, etc.; postearthquake: GNDT, EMS, etc.). This review of the traditional RVS methods offers a comprehensive guide and reference for field practitioners (e.g., engineers, architects), and recommends enhancement techniques (e.g., machine learning, fuzzy logic) for researchers to be used in future improvements.

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“…Kazemi et al derived fragility curves for typical irregular frames with concrete shear walls [23]. Several studies used various curves and techniques developed for vulnerability evaluations and assessments [24][25][26][27]. European studies also investigated structural failures after earthquakes in Italy [28,29] and developed fragility curves for steel and masonry structures [30,31].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Seismic Vulnerability of Hospitals in the Tehran Metropolitan Area

et al. 2021

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The Tehran metropolitan area is extremely vulnerable to earthquakes due to the location of its active faults and its dense population. Assessing the probable damage of a high magnitude earthquake on buildings and facilities relies on a precise structural survey, which has an empirical basis depending on historic ground motions. The probability of damage and failure in discrete limits based on different ground motions is estimated by fragility curves. Using the most matching fragility curves for buildings in Tehran, the vulnerability of the hospitals in the capital, as one of the most critical structures in crisis management of disasters, was investigated in this study. Subsequently, the existing fragility curves, developed for Tehran and the other seismic prone countries such as Japan and the United States, were compared considering the typology of Tehran’s hospitals. Finally, the possible damages for each hospital were calculated based on the most conservative fragility curve and the most pessimistic scenario, which were used to evaluate the seismic vulnerability of hospitals and health care systems for different damage states. After zoning the damage of therapeutic areas of Tehran, it was observed that at least 2% to 10% damage occurred in all hospitals of Tehran, and none of the healthcare centers would remain structurally undamaged after a strong earthquake with the moment magnitude of 7 or more. In addition, the healthcare buildings could be prone to significant structural damage, especially in southern parts, which necessitates proactive management plans for Tehran metropolitan area.

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Probabilistic seismic performance and loss evaluation of a multi-story steel building equipped with butterfly-shaped fuses

Cited by 30 publications

References 40 publications

A Holistic Review of GM/IM Selection Methods from a Structural Performance-Based Perspective

A Holistic Review of GM/IM Selection Methods from a Structural Performance-Based Perspective

Conventional RVS Methods for Seismic Risk Assessment for Estimating the Current Situation of Existing Buildings: A State-of-the-Art Review

Evaluation of Seismic Vulnerability of Hospitals in the Tehran Metropolitan Area

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