Sustainable and Resilient Infrastructure最新文献_第10页

Analytical stochastic framework for assessment of base- and mass-excited structures under equal input energy pertinent to multi-hazard engineering 多灾害工程中等输入能量下基础和质量激励结构的随机分析框架

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-09-05 DOI: 10.1080/23789689.2022.2115263

Tathagata Roy, V. Matsagar

{"title":"Analytical stochastic framework for assessment of base- and mass-excited structures under equal input energy pertinent to multi-hazard engineering","authors":"Tathagata Roy, V. Matsagar","doi":"10.1080/23789689.2022.2115263","DOIUrl":"https://doi.org/10.1080/23789689.2022.2115263","url":null,"abstract":"ABSTRACT Analytical framework for probabilistic assessment of dynamical system under base- and mass- excitations with equal input energy is presented with reference to multi-hazard engineering. Closed-form solutions for equivalent undamped and damped dynamical systems under harmonic sinusoidal base- and mass- excitations are obtained. Uncertainties are considered in the excitation frequency and peak amplitude for sinusoidal base excitations, whereas for the mass excitations, the input forcing functions have variations in excitation frequency, mean speed, and fluctuating wind speeds. Dynamic response quantities (acceleration and displacement) are obtained under the suite of stochastic base and mass excitation forces. Structural failure under the independent excitations is determined as joint probability density functions and fragility surfaces. Under equal input energy from such separate dynamic excitations, dissimilar vulnerability is exhibited by the structure when exposed to two independent time-dependent excitations, base-induced earthquake and mass-induced wind forces. Moreover, the uncertainty in the input excitation parameters has significant influence on the probability of failure in the design life of structure under the non-simultaneous excitations.","PeriodicalId":45395,"journal":{"name":"Sustainable and Resilient Infrastructure","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2022-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42192131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From systemic financial risk to grid resilience: Embedding stress testing in electric utility investment strategies and regulatory processes 从系统性金融风险到电网弹性：在电力投资策略和监管流程中嵌入压力测试

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-07-21 DOI: 10.1080/23789689.2021.2015833

M. DeMenno, R. Broderick, Robert Jeffers

{"title":"From systemic financial risk to grid resilience: Embedding stress testing in electric utility investment strategies and regulatory processes","authors":"M. DeMenno, R. Broderick, Robert Jeffers","doi":"10.1080/23789689.2021.2015833","DOIUrl":"https://doi.org/10.1080/23789689.2021.2015833","url":null,"abstract":"ABSTRACT In response to major system disruptions, policymakers have prioritized enhancing the resilience of the financial services and energy sectors, with a particular focus on banking and electricity regulation. In both sectors, ‘regulating for resilience’ requires bridging system-level policy goals and institution-level policy instruments as well as tailoring institutional requirements to firms’ idiosyncratic risk profiles. Stress testing has enabled financial regulators to partially overcome these analytical and governance challenges, resulting in better capitalized and managed banks, increased attentiveness to systemic risk, and a more resilient financial system. Recognizing the opportunity for translation across sectors and disciplines, this article develops a novel methodology and an actionable policy framework for embedding stress testing in electric utility investment strategies and regulatory processes. It demonstrates how stress testing could enhance the resilience and sustainability of the U.S. electric grid and explores opportunities for regulatory coordination in multi-sector analyses of climate-related risk and resilience.","PeriodicalId":45395,"journal":{"name":"Sustainable and Resilient Infrastructure","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49487280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

On the correlations between different chloride transport parameters and their role in service life estimation 不同氯化物传输参数之间的相关性及其在寿命估算中的作用

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-07-19 DOI: 10.1080/23789689.2022.2097771

Yuvaraj Dhandapani, M. Santhanam

引用次数: 1

The Canadian winter road infrastructure in a warming climate: Toward resiliency assessment and resource prioritization 气候变暖下的加拿大冬季道路基础设施:走向弹性评估和资源优先排序

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-07-14 DOI: 10.1080/23789689.2022.2094124

P. Barrette, Y. Hori, Amy M. Kim

引用次数: 2

Stochastic deterioration modelling of sidewalk performance using compound poisson processes 人行道性能的复合泊松随机退化模型

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-07-13 DOI: 10.1080/23789689.2022.2094125

P. Lin, Arnold Yuan, Kainan Li, Henry Fang

{"title":"Stochastic deterioration modelling of sidewalk performance using compound poisson processes","authors":"P. Lin, Arnold Yuan, Kainan Li, Henry Fang","doi":"10.1080/23789689.2022.2094125","DOIUrl":"https://doi.org/10.1080/23789689.2022.2094125","url":null,"abstract":"ABSTRACT Pedestrian sidewalk plays an increasingly important role in urban transportation. Due to the traditional misconception of it being an infrastructure class of low risk, the current sidewalk asset management still largely relies on experiences and personal judgment. To promote rational asset management, the authors have recently developed two performance indicators namely, the maintenance repair index (MRI) and the sidewalk condition index (SCI). This paper advances the effort by developing two deterioration models using a compound Poisson process (CPP), which consists of a nonhomogeneous Poisson process for the jumping time and a Weibull distribution for the jumping size. Based on a real-life sidewalk defects database, the models also consider the heterogeneity of the sidewalks by including asset attributes such as sidewalk service age, foundation soil type, sidewalk size, pedestrian density, and intensity of construction activities in the vicinity of a sidewalk. The modelling approach presented in the paper – particularly the considerations in the selection of CPP model, the Bayesian statistical inference method, and the model validation process – serves as an excellent example for stochastic deterioration modelling for risk-informed infrastructure asset management.","PeriodicalId":45395,"journal":{"name":"Sustainable and Resilient Infrastructure","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45365855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear seismic fragility analysis of a resilient precast post-tensioned segmental bridge pier 弹性预制后张节段桥墩非线性地震易损性分析

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-06-08 DOI: 10.1080/23789689.2022.2082644

E. Ahmadi, Sedef Kocakaplan, M. Kashani

引用次数: 0

The effect of different road pavement typologies on urban heat island: a case study 不同道路铺装类型对城市热岛的影响:个案研究

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-05-06 DOI: 10.1080/23789689.2022.2067951

V. Ranieri, S. Coropulis, N. Berloco, V. Fedele, P. Intini, Claudio Laricchia, P. Colonna

{"title":"The effect of different road pavement typologies on urban heat island: a case study","authors":"V. Ranieri, S. Coropulis, N. Berloco, V. Fedele, P. Intini, Claudio Laricchia, P. Colonna","doi":"10.1080/23789689.2022.2067951","DOIUrl":"https://doi.org/10.1080/23789689.2022.2067951","url":null,"abstract":"ABSTRACT The Urban Heat Island (UHI) phenomenon is commonly solved by implementing materials with optimal thermic and evapotranspiration properties which help decreasing the air temperature in dense urban areas. This approach has been applied in this study, testing six different materials (replacing the current Macadam) in one parking area in Bari (Italy), which provides a large-scale testbed, by means of a thermal three-dimensional non-hydrostatic simulation: impervious asphalt pavement (IAP), asphalt permeable pavement (APP), green pavement (GP), green pavement-asphalt permeable pavement (GP+APP), grey porous concrete blocks (GCB), and light concrete permeable pavement (LCPP). The highest-performance pavements in terms of potential air temperature (PAT) reduction were the GP (−1.22°C), GCB (−1.26°C) and LCPP (−1.22°C), which also showed a constant relative humidity, suggesting their UHI mitigation benefits. A comparison of the structural properties as well as the construction and maintenance costs of such pavements is also provided, finding the best mitigation strategy (GCB).","PeriodicalId":45395,"journal":{"name":"Sustainable and Resilient Infrastructure","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2022-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47995338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Markov-based deterioration prediction and asset management of floodway structures 基于Markov的防洪建筑物劣化预测与资产管理

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-05-05 DOI: 10.1080/23789689.2022.2067950

H. Tran, W. Lokuge, W. Karunasena, S. Setunge

引用次数: 1

Metamodel-based metaheuristics in optimal responsive adaptation and recovery of traffic networks 基于元模型的交通网络最优响应适应与恢复元启发式研究

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-03-11 DOI: 10.1080/23789689.2022.2029325

R. Teixeira, Beatriz Martinez-Pastor, M. Nogal, A. O'Connor

{"title":"Metamodel-based metaheuristics in optimal responsive adaptation and recovery of traffic networks","authors":"R. Teixeira, Beatriz Martinez-Pastor, M. Nogal, A. O'Connor","doi":"10.1080/23789689.2022.2029325","DOIUrl":"https://doi.org/10.1080/23789689.2022.2029325","url":null,"abstract":"ABSTRACT Different emerging threats highlighted the relevance of recovery and adaptation modelling in the functioning of societal systems. However, as modelling of systems becomes more complex, its effort increases challenging the practicality of the engineering analyses required for efficient recovery and adaptation. In the present work, metamodels are researched as a tool to enable these analyses in traffic networks. One of the main advantages of metamodeling is their synergy with the short decision times required in recovery and adaptation. A sequential global metamodeling technique is proposed and applied to three macroscopic day-to-day user-equilibrium models. Two reference contexts of application are researched: optimal recovery to a perturbation (with response times reduced by 98% with loss of accuracy lower than 1%) and adaptation under uncertainty with perturbation-dependent optimality. Results show that metamodeling-based metaheuristics enable fast resource-intensive engineering analyses of traffic recovery and adaptation, which may change the paradigm of decision-making in this field","PeriodicalId":45395,"journal":{"name":"Sustainable and Resilient Infrastructure","volume":null,"pages":null},"PeriodicalIF":5.9,"publicationDate":"2022-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42980106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Engineering properties of very high volume fly ash composite 超高体积粉煤灰复合材料的工程性能

IF 5.9

Sustainable and Resilient Infrastructure Pub Date : 2022-03-11 DOI: 10.1080/23789689.2022.2033938

H. Myadaraboina, C. Gunasekara, D. Law

引用次数: 0