Seismic resilience evaluation of water distribution systems considering hydraulic and water quality performance

Hou, Benwei; Huang, J; Miao, Huiquan; Zhao, Xudong; Wu, Shan

doi:10.1016/j.ijdrr.2023.103756

Cited by 7 publications

(2 citation statements)

References 36 publications

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“…These experiences have encouraged performance-based seismic designs of buildings to include assessments of the post-earthquake functional loss and recovery [1,[9][10][11]. Such seismic resilience quantifications of buildings can ensure the goal of functional recovery, in addition to the conventional goal of life and structural safety; however, such quantifications are still challenging compared with those of infrastructure (lifelines and networks), which have been extensively performed [e.g., [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Post-earthquake building services downtime distribution: a case study of the 2016 Kumamoto, Japan, earthquake

Nishino

2024

Archit. Struct. Constr.

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Seismic damage to building services systems, that is, mechanical, electrical, and plumbing systems in buildings related to energy and indoor environments, affects the functionality of buildings. Assessing post-earthquake functionality is useful for enhancing the seismic resilience of buildings via improved design. Such assessments require a model for predicting the time required to restore building services. This study analyzes the downtime data for 250 instances of damage to building services components caused by the 2016 Kumamoto earthquake in Japan, presumably obtained from buildings with minor or no structural damage. The objectives of this study are (1) to determine the empirical downtime distribution of building services components and (2) to assess the dependence of the downtime on explanatory variables. A survival analysis, which is a statistical technique for analyzing time-to-event data, reveals that (1) the median downtime of building services components was 90 days and, 7 months after the earthquake, the empirical non-restoration probability was approximately 32%, (2) the services type and the building use are explanatory variables having a statistically significant effect on the downtime of building services components, (3) the log-logistic regression model reasonably captures the trend of the restoration of building services components, (4) medical and welfare facilities and hotels restored building services components relatively quickly, and (5) the 7-month restoration probability was observed to be highest for electrical systems, followed by sanitary systems, then heating, ventilation, and air conditioning systems, and finally life safety systems. These results provide useful information to support the resilience-based seismic design of buildings.

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Section: Introductionmentioning

confidence: 99%

Post-earthquake building services downtime distribution: a case study of the 2016 Kumamoto, Japan, earthquake

Nishino

2024

Archit. Struct. Constr.

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“…These methods demand complex calculations and involve numerous parameters. The integration of hydraulic parameters with various failure modes further amplifies the computational complexity, making the simulation process more daunting [26]. This complexity highlights the need for efficient computational strategies, possibly including the development of more streamlined models or the use of high-performance computing resources, to make these simulation methods more practical and accessible for large-scale applications in assessing and enhancing the resilience of WDSs.…”

Section: Introductionmentioning

confidence: 99%

Seismic Resilience Evaluation of Urban Multi-Age Water Distribution Systems Considering Soil Corrosive Environments

Long,

Yang,

Zheng

et al. 2024

Sustainability

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Evaluating the seismic resilience (SR) of water distribution systems (WDSs) can support decision-making in optimizing design, enhancing reinforcement, retrofitting efforts, and accumulating resources for earthquake emergencies. Owing to the complex geological environment, buried water supply pipelines exhibit varying degrees of corrosion, which worsens as the pipelines age, leading to a continuous degradation of their mechanical and seismic performance, thereby impacting the SR of WDSs. Consequently, this study proposes an SR evaluation method for WDSs that takes into account the corrosive environment and the service age of buried pipelines. Utilizing the analytical fragility analysis method, this research establishes seismic fragility curves for pipelines of various service ages and diameters in diverse corrosive environments, in combination with the Monte Carlo simulation method to generate seismic damage scenarios for WDSs. Furthermore, the post-earthquake water supply satisfaction is utilized to characterize the system performance (SP) of WDSs. Two repair strategies are employed for damaged pipes: assigning a single repair crew to address damages sequentially and deploying a repair crew to each damage location simultaneously, to assess the minimum and maximum SR values of WDSs. The application results indicated that the maximum decrease in SP across 36 conditions was 32%, with the lowest SR value of WDSs being 0.838. Under identical seismic intensities, the SR value of WDSs varied by as much as 16.2% across different service ages and soil conditions. Under rare earthquake conditions, the effect of the corrosive environment significantly outweighs the impact of service age on the SP of WDSs. Post-disaster restoration resources can minimize the impact of the corrosive environment and service age on the SR of WDSs.

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Identifying Pareto-optimal seismic rehabilitation strategies for water distribution networks considering decision maker’s risk attitudes

Sharveen,

Shahandashti

2024

Nat Hazards

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Seismic resilience evaluation of water distribution systems considering hydraulic and water quality performance

Cited by 7 publications

References 36 publications

Post-earthquake building services downtime distribution: a case study of the 2016 Kumamoto, Japan, earthquake

Post-earthquake building services downtime distribution: a case study of the 2016 Kumamoto, Japan, earthquake

Seismic Resilience Evaluation of Urban Multi-Age Water Distribution Systems Considering Soil Corrosive Environments

Identifying Pareto-optimal seismic rehabilitation strategies for water distribution networks considering decision maker’s risk attitudes

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