Time‐dependent seismic resilience of aging repairable structures considering multiple damage states

Wang, Cao; Ayyub, Bilal M.

doi:10.1002/eer2.5

Cited by 6 publications

(4 citation statements)

References 42 publications

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“…In this section, an example, as adopted from Wang and Ayyub 37 with modification, is presented to demonstrate the applicability of Equation (7). Consider a multispan continuous steel bridge, which is located in the Central and Southeastern United States (CSUS), and is subjected to seismic hazards.…”

Section: An Individual Structurementioning

confidence: 99%

Nonresilience curve: A new tool for use in resilience assessment

Wang

2024

Earthquake Engineering and Resilience

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Resilience assessment is a widely used method to evaluate the ability of an object (e.g., an individual structure, or a system consisting of multiple interacting structures) to withstand, recover from, and adapt to disruptive events. This paper proposes a novel concept of “nonresilience curve,” which measures the nonresilience (complement of resilience) of an object of interest conditional on a specific hazard intensity. It is by nature an extension of the well‐established fragility curves, integrating the multiple damage states of a posthazard object. The applicability of the proposed nonresilience curve to individual structures and systems (including series systems, parallel systems, and more general and complicated systems) has been demonstrated in this paper. It is also preliminarily shown that the shape of the cumulative distribution function of a lognormal distribution is suitable to approximate the nonresilience curve, if only limited data points associated with the target nonresilience curve are available. Since the nonresilience curve is a function of the hazard intensity measure (IM), one can estimate the nonresilience of an object in a fully probabilistic manner by additionally taking into account the uncertainty associated with the IM. The proposed nonresilience curve can be further extended to formulate nonresilience surface, which is a joint function of both the IM and the available resource that supports the posthazard recovery process. The nonresilience curve is promising to be adopted in engineering practice for resilience assessment and resilience‐based design of civil structures and infrastructure systems.

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Section: An Individual Structurementioning

confidence: 99%

Nonresilience curve: A new tool for use in resilience assessment

Wang

2024

Earthquake Engineering and Resilience

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“…Next, a numerical example, as adopted from Wang and Ayyub 23 with modification, is presented to demonstrate the applicability of Eq. ( 7).…”

Section: Wangmentioning

confidence: 99%

Nonresilience curve

Wang

2023

Preprint

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Resilience assessment is a widely-used tool to evaluate the ability of an object (e.g., an individual structure, or a system consisting of multiple interacting structures) to withstand, recover from, and adapt to disruptive events. This paper proposes a novel concept of “nonresilience curve”, which measures the nonresilience (complement of resilience) of an object of interest conditional on a specific hazard intensity. It is by nature an extension of the well-established fragility curves, integrating the multiple damage states of a post-hazard object. The applicability of the proposed nonresilience curve to individual structures and systems (including series systems, parallel systems, and more general & complicated systems) has been demonstrated in this paper. It is also preliminarily shown that the shape of the cumulative distribution function of a lognormal distribution is suitable to approximate the nonresilience curve, if only limited data points associated with the target nonresilience curve are available. Since the nonresilience curve is a function of the hazard intensity measure, one can estimate the nonresilience of an object in a fully probabilistic manner by additionally taking into account the uncertainty associated with the intensity measure. The proposed nonresilience curve can be further extended to formulate nonresilience surface, which is a joint function of both the intensity measure and the available resource that supports the post-hazard recovery process. The nonresilience curve is promising to be adopted in engineering practice for resilience assessment and resilience-based design of civil structures and infrastructures.

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“…These methods Eng 2024, 5 368 aim to prevent the conventional design approach by enabling structural elements to dissipate and absorb seismic energy, thereby, minimizing inelastic deformations. However, this strategy involves deliberately inducing cyclic deformations in specific areas, which can lead to structural damage that may render the structure irreparable over time [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Seismic Resilience: Evaluating Buildings with Passive Energy Dissipation Strategies

Rasool,

Afzal,

Rashid

2024

Eng

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Structures are recommended to be designed and constructed with the integration of structural health monitoring techniques to ensure that they can dissipate a large amount of energy without considerable damage when subjected to earthquakes. Hysteretic (H), friction (F), viscous (V), and viscoelastic (VE) dampers were employed in this study to observe the response of buildings using the commercially available software ETABS. The effect of different dampers along with configurations on three prototype concrete buildings (3, 5, and 10-storey) was studied by performing a time history analysis. Initially, the response of the buildings was observed in terms of storey drifts, base shear, and displacement without using dampers, while gradually increasing the damping ratio from 0 to 40%. Subsequently, the response of the buildings was evaluated in terms of displacements and base shear using various types of dampers with different configurations. The analysis results demonstrated that the effectiveness of viscous and viscoelastic dampers is higher for 3 and 5-storey buildings, while friction and hysteresis dampers are more suitable for 10-storey buildings. This information enables informed decisions regarding the performance and maintenance of dampers, contributing to the overall resilience and durability of structures in seismic events.

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Time‐dependent seismic resilience of aging repairable structures considering multiple damage states

Cited by 6 publications

References 42 publications

Nonresilience curve: A new tool for use in resilience assessment

Nonresilience curve: A new tool for use in resilience assessment

Nonresilience curve

Enhancing Seismic Resilience: Evaluating Buildings with Passive Energy Dissipation Strategies

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