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Managing disaster risk associated with critical infrastructure systems: a system-level conceptual framework for research and policy guidance 管理与关键基础设施系统相关的灾害风险:用于研究和政策指导的系统级概念框架
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2022-04-03 DOI: 10.1080/10286608.2022.2067848
R. Davidson, James M. Kendra, Brad R. Ewing, L. Nozick, Kate Starbird, Z. Cox, Maggie Leon-Corwin
ABSTRACT This paper presents a new conceptual framework of the disaster risk of critical infrastructure systems in terms of societal impacts. Much research on infrastructure reliability focuses on specific issues related to the technical system or human coping. Focusing on the end goal of infrastructure services – societal functioning – this framework offers a new way to understand how those more focused research areas connect and the current thinking in each. Following an overview of the framework, each component is discussed in turn, including the initial buildout of physical systems; event occurrence; service interruptions; service provider response; user adaptations to preserve or create needed services; and the ending deficit in societal function. Possible uses of the framework include catalysing and guiding a systematic research agenda that could ultimately lead to a computational framework and stimulating discussion on resilience within utility and emergency management organisations and the larger community.
本文从社会影响的角度提出了关键基础设施系统灾害风险的新概念框架。许多关于基础设施可靠性的研究都集中在与技术系统或人类应对相关的具体问题上。该框架着眼于基础设施服务的最终目标——社会功能——提供了一种新的方式来理解这些更集中的研究领域是如何联系起来的,以及每个领域当前的想法。在概述框架之后,依次讨论每个组件,包括物理系统的初始构建;事件发生;服务中断;服务提供者响应;用户调整以保留或创建所需的服务;以及社会功能的赤字。该框架的可能用途包括催化和指导一个系统的研究议程,最终可能导致一个计算框架,并在公用事业和应急管理组织以及更大的社区内激发关于弹性的讨论。
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引用次数: 5
Behavioural science applied to risk-based decision processes: a case study for earthquake prone buildings in New Zealand 行为科学应用于基于风险的决策过程:新西兰地震易发建筑的案例研究
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2022-04-03 DOI: 10.1080/10286608.2022.2089980
R. Ball, E. Hudson-Doyle, M. Nuth, W. J. Hopkins, D. Brunsdon, Charlotte Brown
ABSTRACT Policy and technical guidance are only as good as their implementation. Often well-meaning legislation has unintended consequences, as individuals and organisations overlay their own risk perceptions and understanding to an issue. This paper illustrates how behavioural science can be applied to risk-based engineering decisions to improve decision outcomes. It is framed around an analysis of the management of earthquake prone public buildings in New Zealand. It demonstrates how the individual, social and cultural contexts can influence how risks and impacts are perceived, evaluated, and communicated. The framing of the decision, unconscious biases, cognitive limitations, trust, and other social influences are all critical factors in translation of technical policy to effective outcomes.
政策和技术指导的好坏取决于政策和技术指导的实施。通常,善意的立法会带来意想不到的后果,因为个人和组织将自己的风险感知和理解叠加在一个问题上。本文阐述了如何将行为科学应用于基于风险的工程决策以改善决策结果。它围绕着对新西兰地震易发公共建筑管理的分析而展开。它展示了个人、社会和文化背景如何影响风险和影响的感知、评估和沟通方式。决策框架、无意识偏见、认知限制、信任和其他社会影响都是将技术政策转化为有效结果的关键因素。
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引用次数: 0
Participatory modelling: precedents and prospects for civil engineering 参与式建模:土木工程的先例与前景
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2022-04-03 DOI: 10.1080/10286608.2022.2083111
Bryann Avendano-Uribe, M. Milke, D. Castillo-Brieva
ABSTRACT This work provides an analysis for the civil engineering community of the practice of participatory modelling (PM), reviewing the advances that environmental researchers and practitioners have made over 20 years, providing key references, case studies, and practical guidelines. Past consultation methods have proven inadequate to build trust with communities, and have led to development of PM to improve engagement. Three lessons from PM are emphasised: (1) listen to stakeholders to better understand the system, (2) collaborate with stakeholders to better model the system, and (3) co-decide on actions to better empower and engage stakeholders. Advice on the key aspects to consider when designing a PM process is summarised. The challenges and obstacles to progress are analysed for PM in civil engineering applications. PM appears to be of greater value in larger projects involving complex socio-technical systems. The incorporation of PM within civil engineering work will be more useful to society when civil engineers understand better the operation of PM.
这项工作为土木工程界的参与式建模(PM)实践提供了分析,回顾了环境研究人员和实践者在20多年来取得的进展,提供了关键参考,案例研究和实践指南。过去的咨询方法已被证明不足以与社区建立信任,并导致PM的发展,以提高参与。从项目管理中得到的三个教训被强调了:(1)听取利益相关者的意见,以更好地理解系统;(2)与利益相关者合作,以更好地为系统建模;(3)共同决定行动,以更好地授权和参与利益相关者。总结了在设计PM过程时要考虑的关键方面的建议。分析了土木工程项目管理在土木工程应用中的挑战和障碍。项目管理似乎在涉及复杂社会技术系统的大型项目中具有更大的价值。当土木工程师更好地理解项目管理的运作时,将项目管理纳入土木工程工作将对社会更有用。
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引用次数: 1
Vibration performance of timber-concrete composite floor section –verification and validation of analytical and numerical results based on experimental data 木结构-混凝土组合楼盖截面的振动性能——基于实验数据的解析和数值结果的验证与验证
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2022-04-03 DOI: 10.1080/10286608.2022.2093865
Hamid Movaffaghi, J. Pyykkö
ABSTRACT Vibration performance of a one-way simply supported timber-concrete composite (TCC) floor section has been studied using analytical as well as numerical methods. Focal points have been verification and validation of results from analytical and numerical calculations of vibration response based on experimental data. For the analytical calculations, floor bending stiffness and vibrational response are determined from methods proposed in the current and revised versions of Eurocode 5. The numerical calculations based on the finite element (FE) method are done using 3D solid elements with orthotropic material parameters. When comparing the results of the FE analysis, better agreement with the experimental data is reached for the fundamental frequency when 3D solid elements are used rather than 3D beam elements. Furthermore, better agreement with the experimental data is reached for RMS acceleration by FE analysis rather than the method based on Eurocode 5. For detailed analysis, the authors suggest performing dynamic FE analysis and calculating vibration response from the TCC floor’s modal responses as eigenmodes and natural eigenfrequencies below 40 Hz. For future studies, it is recommended that the verification of vibration response may be accomplished by applying standard EN 16929.
摘要采用解析和数值方法研究了单向简支木-混凝土复合材料(TCC)楼板截面的振动性能。重点对基于实验数据的振动响应分析和数值计算结果进行了验证和验证。对于分析计算,楼板的弯曲刚度和振动响应是根据现行和修订版本的欧洲规范5中提出的方法确定的。采用具有正交各向异性材料参数的三维实体单元进行了基于有限元法的数值计算。对比有限元分析结果发现,采用三维实体单元比采用三维梁单元时基频与实验数据吻合得更好。与基于欧洲规范5的方法相比,采用有限元方法计算的均方根加速度与实验数据更符合。为了进行详细的分析,作者建议进行动态有限元分析,并从TCC楼板的模态响应计算振动响应,作为特征模态和固有特征频率低于40 Hz。对于未来的研究,建议通过应用EN 16929标准来验证振动响应。
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引用次数: 2
A simplified method for seismic assessment of unreinforced masonry buildings 一种简化的无筋砌体建筑抗震评定方法
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2022-01-02 DOI: 10.1080/10286608.2022.2047665
I. Capanna, F. Di Fabio, M. Fragiacomo
ABSTRACT The paper presents a simplified vulnerability assessment method for unreinforced masonry buildings based on the evaluation of a few structural parameters, which can be determined from visual inspection and a geometry survey. The authors proposed an empirical approach with the aim to assess the in-plane vulnerability quickly by predicting the damage failure of bearing masonry walls. Field observations reveal different behaviours: out-of-plane and in-plane seismic responses. Several simplified assessments focus on out-of-plane behaviour. Few studies deal with in-plane seismic behaviour, which is also the expected response for more masonry buildings. The proposed seismic method provides a vulnerability index, which is evaluated as the weighted sum of 10 parameters markedly affecting the in-plane seismic performance. The reliability of the method is investigated through an application on buildings located in Central Italy, damaged by the 2016 earthquake. The mean damage and damage probability distributions were predicted for each building using the proposed method. Then, fragility functions were estimated from the results of non-linear static analysis, and the damage probability distributions were derived. The capability of the simplified method to foresee the damage probabilities was confirmed by a comparison between different approaches, confirming the reliability of the method in large-scale seismic assessment.
摘要:本文提出了一种基于目测和几何测量确定的几个结构参数的简化无配筋砌体建筑易损性评价方法。提出了一种经验方法,通过对承重砌体墙体损伤破坏的预测,快速评估其面内易损性。现场观测揭示了不同的行为:面外和面内地震反应。一些简化的评估侧重于面外行为。很少有研究涉及面内地震行为,这也是更多砌体建筑的预期响应。该方法给出了一个易损性指数,该指数是影响面内抗震性能的10个参数的加权和。通过在2016年地震中受损的意大利中部建筑物上的应用,研究了该方法的可靠性。利用该方法预测了各建筑物的平均损伤分布和损伤概率分布。然后,根据非线性静力分析结果估计易损性函数,得到损伤概率分布;通过对不同方法的比较,验证了简化方法预测地震破坏概率的能力,验证了该方法在大规模地震评估中的可靠性。
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引用次数: 3
An opinion piece on the dos and don’ts of artificial intelligence in civil engineering and charting a path from data-driven analysis to causal knowledge discovery 一篇关于土木工程中人工智能的做与不做的观点文章,并描绘了从数据驱动分析到因果知识发现的路径
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2022-01-02 DOI: 10.1080/10286608.2022.2049257
M. Z. Naser, Brandon Ross
ABSTRACT Artificial intelligence (AI) has been established as a universal language for solving science and engineering problems. Despite the rise of big data, the success of AI in parallel fields, and exciting works published at this frontier, some in the civil engineering community tie AI to a mystique stigma. And yet, there is also ever-growing inertia to embrace AI fully. The mystique of AI arises because (1) AI is not typically taught in a traditional civil engineering curriculum, (2) the majority of civil engineers remain appliers (as opposed to creators) of AI, and (3) commonly adopted AI algorithms leverage blackbox methods – the opposite to that commonly accepted in the civil engineering domain. We write this opinion piece with the aim of presenting a holistic look into the dos and don’ts of adopting AI into civil engineering.
人工智能(AI)已经成为解决科学和工程问题的通用语言。尽管大数据的兴起,人工智能在平行领域的成功,以及在这一前沿领域发表的令人兴奋的作品,但土木工程界的一些人将人工智能与神秘的耻辱联系在一起。然而,也有越来越多的人不愿意完全接受人工智能。人工智能之所以神秘,是因为:(1)传统的土木工程课程中通常不会教授人工智能,(2)大多数土木工程师仍然是人工智能的应用者(而不是创造者),以及(3)通常采用的人工智能算法利用黑箱方法——与土木工程领域普遍接受的方法相反。我们写这篇评论文章的目的是全面了解将人工智能应用于土木工程的做法和禁忌。
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引用次数: 4
Technological mediation and civil structure condition assessment: the case of vision-based systems 技术调解与土木结构状况评估:以视觉系统为例
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2022-01-02 DOI: 10.1080/10286608.2022.2030318
H. Voordijk, R. Kromanis
ABSTRACT This study applies the philosophy of technological mediation to understand how vision-based systems used for civil structure condition assessment transform input of images from cameras into output of structural response. The objective of this study is to understand the mediating role that a vision-based system plays between their users and properties of civil structures that are unperceivable in a great part by humans. A case study of a specific application of such a system is conceived as a responsive digital material with substrates (image frames consisting of millions of pixels) and traces (modelled time-histories to be interpreted by their users). Built-in technological selectivities determine possible differences between modelled time-histories and existing civil structures in reality and attribute to epistemic uncertainties. Modelled time-histories amplify a person’s experience of a certain aspect of the monitored civil structure while simultaneously reducing experiences of other aspects of the structure. Therefore, to prevent human blindness, engineers have to judge outputs of condition assessment systems in the light of specific pre-theoretical shared agreements and routines. Understanding the complex interplay between technological selectivities and different types of human blindness may increase understanding of how these systems can be used successfully in civil structure condition assessment.
本研究应用技术中介的理念来理解用于土木结构状态评估的基于视觉的系统如何将来自摄像机的图像输入转换为结构响应的输出。本研究的目的是了解基于视觉的系统在其用户和大部分人类无法感知的土木结构属性之间发挥的中介作用。这种系统的一个具体应用的案例研究被认为是一个具有基材(由数百万像素组成的图像帧)和痕迹(由其用户解释的建模时间历史)的响应性数字材料。内置的技术选择性决定了模型时间历史和现实中现有土木结构之间可能存在的差异,并归因于认知的不确定性。建模的时间历史放大了一个人对监测土木结构某一方面的体验,同时减少了对结构其他方面的体验。因此,为了防止人类的盲目性,工程师必须根据具体的理论前共享协议和例程来判断状态评估系统的输出。了解技术选择性和不同类型的人类失明之间复杂的相互作用可能会增加对这些系统如何成功用于土木结构状况评估的理解。
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引用次数: 3
Measuring the benefits of civil systems connectivity and automation – a discussion in the context of highway transport 测量民用系统连接和自动化的好处——在公路运输背景下的讨论
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2021-12-19 DOI: 10.1080/10286608.2021.2013474
S. Labi
ABSTRACT Connectivity refers to the ability of civil engineering system components to transmit/receive data for making strategic, tactical and operational decisions towards enhanced efficiency, effectiveness, and lower costs to the system stakeholders. Automation is the capability of a system or its component to carry out control functions or decisions that are traditionally done by humans. As the benefits of these two technologies become increasingly apparent in various civil engineering disciplines, it seems useful to measure such impacts to generate information for evaluating the feasibility of past or prospective future applications related to connectivity and automation (C/A) or for comparing alternative C/A applications. This paper discusses some constructs for measuring the benefits or effectiveness (MOEs) of C/A applications. An MOE expressed in terms of an appropriate system performance indicator (SPI) can help ascertain the extent to which a C/A application has accomplished or is expected to accomplish its specified goals or to compare the efficacy of alternative C/A applications. This paper identifies a number of SPIs, and establishes a number of MOEs for measuring the effectiveness of C/A applications in terms of the relevant SPIs. The paper provides illustrations to the concepts discussed in the context of highway transport.
连通性是指土木工程系统组件传输/接收数据的能力,用于制定战略、战术和操作决策,以提高系统利益相关者的效率、有效性和降低成本。自动化是系统或其组件执行传统上由人类完成的控制功能或决策的能力。随着这两种技术的好处在各种土木工程学科中变得越来越明显,测量这种影响似乎很有用,可以为评估与连接和自动化(C/A)相关的过去或未来应用的可行性或比较替代C/A应用产生信息。本文讨论了用于度量C/A应用的效益或有效性(MOEs)的一些结构。以适当的系统性能指标(SPI)表示的MOE可以帮助确定C/ a应用程序已经完成或预期完成其指定目标的程度,或者比较替代C/ a应用程序的有效性。本文确定了一些spi,并建立了一些moe,用于根据相关spi衡量C/ a应用程序的有效性。本文对公路运输中所讨论的概念进行了说明。
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引用次数: 1
Systems thinking averts apocalypses now and in the future: why we should always look on the bright side of life 系统思考避免了现在和未来的末日:为什么我们应该总是看到生活的光明面
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2021-12-01 DOI: 10.1080/10286608.2021.2005589
M. Stewart
ABSTRACT Systems thinking and analysis from the civil and environmental engineering communities have been highly successful in mitigating the effects of natural and man-made hazards. Not surprisingly, the United Nations Human Development Index shows steady improvement for every nation since its implementation in 1990. The world has never been healthier, wealthier, or more educated than at the present. Climate change and sustainability remain as significant challenges to be faced. It will be shown, though, that economic and life-safety losses from climate change are often exaggerated and do not reflect wealth creation, human capital, and new improved technologies. There is an urgent need for systems-led approaches and there is a proud record of accomplishments in the past that should equally as well translate into the future. This paper will discuss these issues, as well as briefly describe the importance of systems engineering in dealing with new and emerging threats, as well as the political imperative. The paper will also highlight that there is much to be optimistic about the future, and in the ability of systems thinking to meet any challenges. And to quote Monty Python we should try to ‘Always Look on the Bright Side of Life’.
土木和环境工程界的系统思考和分析在减轻自然和人为灾害的影响方面取得了巨大成功。毫不奇怪,联合国人类发展指数显示,自1990年实施以来,每个国家都在稳步改善。世界从来没有像现在这样健康、富裕、受教育程度更高。气候变化和可持续发展仍然是面临的重大挑战。然而,气候变化造成的经济和生命安全损失往往被夸大,没有反映财富创造、人力资本和新技术的改进。迫切需要以系统为主导的办法,过去取得的骄人成就同样也应转化为未来的成就。本文将讨论这些问题,以及简要描述系统工程在处理新的和正在出现的威胁中的重要性,以及政治必要性。本文还将强调,未来有很多值得乐观的地方,系统思考的能力也有很多值得乐观的地方,可以应对任何挑战。引用巨蟒剧团的话,我们应该试着“总是看到生活的光明面”。
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引用次数: 2
Authors' reply to David Elms' discussion of ‘Integrating the liberal arts into the body of knowledge for civil engineering systems engineers’ 作者对David Elms关于“将文科融入土木工程系统工程师的知识体系”的讨论的回复
IF 1.8 3区 工程技术 Q3 ENGINEERING, CIVIL Pub Date : 2021-10-02 DOI: 10.1080/10286608.2021.1980559
G. Masterton
ABSTRACT The author’s reply to David Elms welcomes the supportive comments and offers a visualisation of the body of knowledge required of a systems engineer, building on the ‘T-shaped' person construct. The systems engineer requires a series of pillars of deep domain knowledge, acquired throughout a lifetime of experience, with serial capstones representing the synthesis and integration of that knowledge. Many of the capstones should be from the distant territories of ‘liberal arts' – leading to ‘Stonehenge-shaped people'.
作者对David Elms的回复欢迎支持性评论,并提供了一个系统工程师所需知识体系的可视化,建立在“t形”人结构的基础上。系统工程师需要一系列深入领域知识的支柱,这些知识是通过一生的经验获得的,具有代表该知识的综合和集成的一系列顶点。许多顶点石应该来自遥远的“文科”领域——导致“巨石阵形状的人”。
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引用次数: 0
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Civil Engineering and Environmental Systems
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