Seismic Design Framework Based on Loss-performance Matrix

Nuzzo, Iolanda; Caterino, Nicola; Pampanin, Stefano

doi:10.1080/13632469.2020.1828201

Cited by 11 publications

(10 citation statements)

References 29 publications

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“…In order to choose the optimal retrofit option, Calvi (2013), Nuzzo et al (2018), and Vitiello et al (2017) proposed methods that define the total cost of the solutions also including the potential losses connected to seismic risk. Calvi (2013) proposed a new cost-benefit parameter to compare alternative seismic retrofit options based on the ratio between the difference of the building's Expected Annual Loss (EAL) before and after the retrofit and the cost of the intervention itself.…”

Section: Methods Combining Safety and Economic Sustainabilitymentioning

confidence: 99%

“…Calvi (2013) proposed a new cost-benefit parameter to compare alternative seismic retrofit options based on the ratio between the difference of the building's Expected Annual Loss (EAL) before and after the retrofit and the cost of the intervention itself. Similarly, Nuzzo et al (2018) proposed a new loss ratio performance matrix to be integrated into the PBEE seismic design framework as to allow the implementation of a cost-based design approach. The matrix employs the Probability Maximum Loss (PML) as performance measure, which is a simplification of the EAL and represents the result of a loss analysis for a single given intensity level.…”

Section: Methods Combining Safety and Economic Sustainabilitymentioning

confidence: 99%

See 1 more Smart Citation

Redefining the concept of sustainable renovation of buildings: State of the art and an LCT-based design framework

Passoni

Marini

Belleri

et al. 2021

Sustainable Cities and Society

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Section: Methods Combining Safety and Economic Sustainabilitymentioning

confidence: 99%

Section: Methods Combining Safety and Economic Sustainabilitymentioning

confidence: 99%

Redefining the concept of sustainable renovation of buildings: State of the art and an LCT-based design framework

Passoni

Marini

Belleri

et al. 2021

Sustainable Cities and Society

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“…It can be highlighted that the probabilistic procedure leads to reduced repair cost values and, consequently, an improved risk class for the building, as observed for the case of flexural collapse mechanism. Ultimately, another decision variable useful to provide indications on the seismic performance of a building system (as well as addressing the design of new and/or retrofitted buildings, as described in the research work by Nuzzo et al [50]) is represented by the expected Probable Maximum Loss (PML). This parameter provides the maximum probable building repair cost associated with a specific intensity level.…”

Section: Loss Assessment Investigationsmentioning

confidence: 99%

Numerical Investigations on the Residual Capacity and Economic Losses of Earthquake-Damaged Reinforced Concrete Wall Structures

Ceccarelli¹,

Bianchi²,

Pedone³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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The substantial damage to Reinforced Concrete (RC) structural walls observed from postearthquake reconnaissance has prompted the attention on the need for improved code-based design provisions for these structural elements as well as for detailed investigations on their residual capacity, typically neglected in the retrofit/repair evaluation. Although several research works and international guidelines focusing on the seismic performance of damaged structural walls are available from a state-of-the-art review, a specific methodology to evaluate the earthquake-related damage to structural walls is still missing in literature. Therefore, this research work investigates the seismic residual capacity of RC walls through parametric numerical analyses, aiming to provide indications on the assessment methodology to be used in practical applications. The numerical investigation is initially carried out by implementing Finite Element Modelling of RC walls with different mechanical properties and expected failure mechanisms. This allows to evaluate and collect stiffness/strength reduction coefficients to be adopted for different post-earthquake damage conditions. Then, the influence of residual capacity on the economic seismic losses of wall structures is investigated and discussed. Specifically, a multi-story case-study RC building is selected, and pre-and post-earthquake loss assessments are carried out considering alternative wall typologies and damage levels. Analytical-based nonlinear analyses highlight that the loss of stiffness and strength can lead to increasingly higher economic losses depending on the damage level of the structural wall. Moreover, substantial economic losses can be estimated if residual capacity is taken into account even at low-intensity seismic levels. Therefore, such methodology could provide valuable information to support decisions on the post-earthquake repair/retrofit/demolition.

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“…Such an approach is based on either pushover and/or time-history analyses and does not consider the time value of money. Nuzzo et al (2020) proposed a seismic design framework (also applicable to retrofit) adopting a multi-objective loss performance matrix directly associating loss measures to performance levels as a function of the design seismic intensity and the social importance of the building. However, this approach does not consider retrofit alternatives nor the time value of money.…”

Section: Introductionmentioning

confidence: 99%

A computational framework for selecting the optimal combination of seismic retrofit and insurance coverage

Gentile

Pampanin

Galasso

2021

Computer aided Civil Eng

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Economic earthquake losses can be mitigated through either building retrofit strategies and/or, to some extent, risk-transfer to the (re)insurance market. This paper proposes a computational framework to select the optimal combination of seismic retrofit and insurance policy parameters for buildings. First, a designer selects a suitable retrofit strategy. This is implemented incrementally to define interventions with increasing retrofit performance levels. The cost of each intervention is calculated, along with the cost of property rental while the retrofit is implemented. Alternative insurance options are considered. For each retrofit-insurance combination, the insured and uninsured economic losses within a given time horizon are estimated. The optimal retrofit and insurance combination minimizes the tail value at risk of the life cycle cost. The selected confidence level for this metric depends on the homeowner's risk aversion. The proposed framework is illustrated for a case-study archetype Italian reinforced concrete frame building retrofitted with concrete jacketing, also considering the Italian retrofit tax incentives/rebates called "Sismabonus."

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Seismic Design Framework Based on Loss-performance Matrix

Cited by 11 publications

References 29 publications

Redefining the concept of sustainable renovation of buildings: State of the art and an LCT-based design framework

Redefining the concept of sustainable renovation of buildings: State of the art and an LCT-based design framework

Numerical Investigations on the Residual Capacity and Economic Losses of Earthquake-Damaged Reinforced Concrete Wall Structures

A computational framework for selecting the optimal combination of seismic retrofit and insurance coverage

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