Proceedings of the Institution of Civil Engineers-Bridge Engineering最新文献_第7页

Simulating the Role of Transportation Infrastructure for Community Disaster Recovery 模拟交通基础设施在社区灾后恢复中的作用

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-11-12 DOI: 10.1680/jbren.21.00018

N. Blagojević, M. Didier, B. Stojadinović

{"title":"Simulating the Role of Transportation Infrastructure for Community Disaster Recovery","authors":"N. Blagojević, M. Didier, B. Stojadinović","doi":"10.1680/jbren.21.00018","DOIUrl":"https://doi.org/10.1680/jbren.21.00018","url":null,"abstract":"Functional recovery of transportation infrastructure after a disaster is essential for community disaster resilience as the recovery of damaged community components depends on their accessibility for repair. This paper presents a community disaster recovery simulation that accounts for community component's accessibility for repair using a demand-supply framework. Considered components of a community are viewed as suppliers and/or users of various resources and services essential for community functionality, reflected in components’ supply and demand properties. Whenever the demand of a component is not met, that component ceases to operate, simulating interdependency effects. Similarly, recovery demand is attributed to damaged components, representing the amounts of resources and services (e.g., workers, machinery and transportation services) these components need to recover. The proposed framework is illustrated on a virtual community with 3600 inhabitants supported by several interdependent infrastructure systems. The results show that the transportation network damage slows down the recovery of the virtual community by preventing access to damaged components and reducing the ability of the community to mobilize available repair resources. Furthermore, the effect of such prolonged transportation system recovery on the damage-free infrastructure systems whose functionality was decreased due to their dependency on the affected infrastructure systems, is quantified.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"22 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88309256","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: 6

Probabilistic Long-Term Resilience of Bridges under Seismic and Deterioration Processes 地震和劣化过程下桥梁的概率长期回弹性

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-11-08 DOI: 10.1680/jbren.21.00049

Jing Qian, You Dong, D. Frangopol

{"title":"Probabilistic Long-Term Resilience of Bridges under Seismic and Deterioration Processes","authors":"Jing Qian, You Dong, D. Frangopol","doi":"10.1680/jbren.21.00049","DOIUrl":"https://doi.org/10.1680/jbren.21.00049","url":null,"abstract":"Accurate long-term risk and resilience assessment of bridges are of paramount importance to aid rational decision-making under seismic hazards. There exist time-varying features within both earthquakes and structural deterioration. It has been found that the occurrence of large earthquakes is dependent on time due to energy accumulation, whereas the widely adopted homogeneous Poisson process assumes the time-independent occurrence of hazards. Besides, bridges can deteriorate over time due to environmental exposure, resulting in increased seismic vulnerability. The time-varying characteristics associated with both earthquakes and deterioration, which cause compound effects to structures, should be incorporated in long-term seismic risk and resilience assessment. In this paper, an approach for assessing the long-term resilience of bridges incorporating time-varying characteristics of earthquakes and deterioration is proposed. The Brownian Passage Time (BPT) model capturing energy accumulation and release is used to model time-varying characteristics of earthquakes. The bridge seismic vulnerability is computed in a time-variant manner considering deterioration. Subsequently, long-term bridge resilience is computed by considering earthquakes and deterioration occurring during the entire service life of bridges. The proposed approach is illustrated on a highway bridge under time-dependent seismic hazard and structural deterioration.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"124 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87971063","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: 2

Seismic assessment of corroded concrete bridges using incremental modal pushover analysis 基于增量模态推覆分析的腐蚀混凝土桥梁抗震评估

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-11-03 DOI: 10.1680/jbren.21.00025

A. Bergami, A. Pelle, G. Fiorentino, D. Lavorato, G. F. Giaccu, G. Quaranta, B. Briseghella, C. Nuti

引用次数: 1

Structural robustness of an RC pier under repeated earthquakes 反复地震作用下钢筋混凝土桥墩结构的鲁棒性研究

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-11-03 DOI: 10.1680/jbren.21.00012

A. Aloisio, Matteo Pelliciari, R. Alaggio, C. Nuti, M. Fragiacomo, B. Briseghella

引用次数: 3

Using conditional mean spectra and uniform hazard spectra for seismic analysis of bridges 用条件平均谱和均匀危险谱进行桥梁地震分析

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-10-21 DOI: 10.1680/jbren.21.00043

D. Proske, T. Walti, D. Kurmann, P. Renault

引用次数: 0

Comparing unsupervised shallow and deep models for structural health monitoring 结构健康监测中无监督浅模型与深度模型的比较

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-10-12 DOI: 10.1680/jbren.21.00016

Raghavendra Chalapathy, N. Khoa

引用次数: 0

Bridge and transport network resilience – a perspective 桥梁和运输网络弹性——一个视角

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-10-12 DOI: 10.1680/jbren.21.00055

S. Mitoulis, M. Domaneschi, G. Cimellaro, J. Casas

{"title":"Bridge and transport network resilience – a perspective","authors":"S. Mitoulis, M. Domaneschi, G. Cimellaro, J. Casas","doi":"10.1680/jbren.21.00055","DOIUrl":"https://doi.org/10.1680/jbren.21.00055","url":null,"abstract":"Bridges and critical transport infrastructure (CTI) are primary infrastructure assets and systems that underpin human mobility and activities. Loss of the functionality of bridges has consequences on the entire transport network, which is also interconnected with other networks, therefore cascading events are expected in the entire system of systems, leading to significant economic losses, business, and societal disruption. Recent natural disasters revealed the vulnerabilities of bridges and CTI to diverse hazards (e.g. floods, blasts, earthquakes), some of which are exacerbated due to climate change. Therefore, the assessment of bridge and network vulnerabilities by quantifying their capacity and functionality loss and adaptation to new requirements and stressors is of paramount importance. In this paper, we try to understand what are the main compound hazards, stressors and threats that influence bridges with short-and long-term impacts on their structural capacity and functionality and the impact of bridge closures on the network operability. We also prioritise the main drivers of bridge restoration and reinstatement, e.g. its importance, structural, resources, organisational factors. The loss of performance, driven by the redundancy and robustness of the bridge, is the first step to be considered in the overall process of resilience quantification. Resourcefulness is the other main component of resilience here analysed.","PeriodicalId":44437,"journal":{"name":"Proceedings of the Institution of Civil Engineers-Bridge Engineering","volume":"18 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80995522","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: 15

Fatigue Durability of Reinforced Concrete Bridge Deck Repair Methods 钢筋混凝土桥面疲劳耐久性修复方法

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-10-11 DOI: 10.1680/jbren.21.00034

Toshihiko Nagatani, T. Mizobuchi, Y. Hagihara

引用次数: 0

Dimensional quality assessment of cable-stayed bridge by combining TLS and UAV 基于TLS和无人机的斜拉桥尺寸质量评价

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-10-11 DOI: 10.1680/jbren.21.00054

Ma Yinhuai, J. Zhigang, Ma Ligang, Liao Changli, Cui Shaoqian

引用次数: 0

Inspection, Testing, Assessment and Rehabilitation of Daly's (Shakey) Bridge, Cork City 科克市戴利(夏基)桥的检查、测试、评估和修复

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Proceedings of the Institution of Civil Engineers-Bridge Engineering Pub Date : 2021-10-11 DOI: 10.1680/jbren.21.00009

Michael Minehane, J. Gamble

引用次数: 0