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APPLYING AI TECHNOLOGY TO RECOGNIZE BIM OBJECTS AND VISIBLE PROPERTIES FOR ACHIEVING AUTOMATED CODE COMPLIANCE CHECKING 应用人工智能技术识别bim对象和可见属性,实现自动代码遵从性检查
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-06-15 DOI: 10.3846/jcem.2022.16994
Hongwei Sun, Inhan Kim
Automated code compliance checking is an effective approach for assessing the quality of building information modeling (BIM) models. Various automated code compliance checking systems have emerged, wherein users need to input all information accurately according to BIM modeling guidelines, in order to ensure the accuracy of checking results. However, as this process involves human inputs, it is difficult to ensure that each input is accurate. In the case of errors or missing inputs, the checking results will be erroneous. Although automated checking systems can be developed accurately, it is difficult to apply these systems practically. Therefore, this paper proposes the application of AI technology to recognize BIM objects and visible properties, in order to improve the operability of automated code compliance checking. The two necessary elements – object names and properties – could be automatically extracted to a certain extent, following the application of the proposed method to the automated code checking process. The error rate of the input could also be reduced, thus making the application of the code checking system more practically feasible. The proposed recognition method for BIM objects and visible properties is also expected to be used widely in BIM-based building e-submission systems and BIM-based forward designs.
自动代码符合性检查是评估建筑信息建模(BIM)模型质量的有效方法。各种自动化代码符合性检查系统已经出现,用户需要按照BIM建模指南准确输入所有信息,以确保检查结果的准确性。然而,由于这个过程涉及人工输入,很难确保每个输入都是准确的。如果出现错误或缺少输入,则检查结果将是错误的。虽然可以开发出精确的自动检测系统,但很难在实际中应用。因此,本文提出应用AI技术识别BIM对象和可见属性,以提高自动化代码符合性检查的可操作性。在将建议的方法应用于自动代码检查过程之后,可以在一定程度上自动提取两个必要的元素——对象名称和属性。还可以降低输入的错误率,从而使码检系统的应用更具实际可行性。所提出的BIM对象和可见属性识别方法也有望在基于BIM的建筑电子提交系统和基于BIM的正向设计中得到广泛应用。
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引用次数: 1
RISK CAUSATION MODEL TO CAPTURE AND TRANSFER KNOWLEDGE IN INTERNATIONAL CONSTRUCTION PROJECTS 在国际建设项目中运用风险因果模型获取和传递知识
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-06-06 DOI: 10.3846/jcem.2022.16925
Fengfeng Zhu, Hao Hu, F. Xu
International construction projects are facing various severe risks from country, partner, company, and project. Global contractors have suffered heavy losses. Previous researches have proved that an available organizational risk repository is a reliable knowledge source that can be used to introduce experience-based solutions of how specific risks can be managed in international construction projects. The construction of the organizational risk repository calls for an effective feedback mechanism that dispels the organizational culture of unwillingness to disclose management failure and encourages proactive creation and retention of data and information on historical projects and risk-related knowledge. Hence, this paper proposes a risk causation model for international construction projects (RCM_ICP) to support such a mechanism. RCM_ICP links response measures to the chain of risks to identify management failures and conduct modifications, thereby promoting thinking on the part of the management and capturing key risk management experiences. It includes a category component for the efficient retrieval of relevant knowledge based on country-related factors. Besides, this paper proposes the risk review procedures as the instruction of RCM_ICP. Hence, this research breaks the barriers of sharing information between project and organization levels in a project-based industry.
国际建设项目面临着来自国家、合作方、公司和项目的各种严峻风险。全球承包商损失惨重。以往的研究已经证明,一个可用的组织风险存储库是一个可靠的知识来源,可以用来引入基于经验的解决方案,如何管理国际建筑项目中的特定风险。组织风险库的构建需要一种有效的反馈机制,消除不愿披露管理失败的组织文化,鼓励主动创建和保留历史项目和风险相关知识的数据和信息。为此,本文提出了国际建设项目风险因果关系模型(RCM_ICP)来支持这一机制。RCM_ICP将应对措施与风险链联系起来,识别管理失误并进行修改,从而促进管理层的思考,获取关键的风险管理经验。它包括一个类别组成部分,用于根据与国家有关的因素有效地检索相关知识。此外,本文还提出了风险评审程序,作为RCM_ICP的指导。因此,本研究打破了基于项目的行业中项目与组织之间信息共享的壁垒。
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引用次数: 2
STATUS QUO AND FUTURE TRENDS OF BIM-BASED COORDINATION RESEARCH: A CRITICAL REVIEW 基于BIM的协调研究现状及发展趋势
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-06-06 DOI: 10.3846/jcem.2022.16928
Zezhou Wu, Kaiwen Deng, Changhong Chen, Heng Li, M. F. Antwi-Afari, Ying Wang
Enhancing coordination between stakeholders is a critical function of Building Information Modeling (BIM). Recently, there have been numerous studies investigating BIM-based coordination; however, no explicit attempt has been made to investigate the current status of relevant research and determine the future directions. Hence, this study examines the BIM-based coordination literature published from 2006 to 2020 through bibliometric literature searching, scientific mapping, and in-depth critical analysis to fill the research gap. After a comprehensive filtering process, 656 pieces of literature were collected from Scopus. To map the representative information in the BIM-based coordination research, the determination and visualization of the most influential scholars, journals, countries/regions, and articles, as well as their importance and relationships, were performed through VOSviewer. Four emerging research topics were further discussed according to the determined scientific map. Moreover, a framework that presents the existing research gaps and future research directions was proposed. This research provides a clear picture of the leading information and future research trends of the BIM-based coordination, contributing to the body of knowledge theoretically and offering references for related stakeholders practically.
加强利益相关者之间的协调是建筑信息建模(BIM)的关键功能。最近,有许多研究对基于BIM的协调进行了研究;然而,目前还没有明确的尝试来调查相关研究的现状和确定未来的方向。因此,本研究通过文献计量学文献检索、科学制图和深入的批判性分析,对2006年至2020年发表的基于BIM的协调文献进行了研究,以填补研究空白。经过全面筛选,从Scopus收集到656篇文献。为了绘制基于BIM的协调研究中的代表性信息,通过VOSviewer确定和可视化最具影响力的学者、期刊、国家/地区和文章,以及它们的重要性和关系。根据确定的科学图谱,进一步讨论了四个新出现的研究主题。此外,还提出了一个框架,介绍了现有的研究差距和未来的研究方向。这项研究清楚地展示了基于BIM的协调的领先信息和未来研究趋势,从理论上为知识体系做出了贡献,并为相关利益相关者的实践提供了参考。
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引用次数: 1
EXPLORING THE RISK TRANSMISSION CHARACTERISTICS AMONG UNSAFE BEHAVIORS WITHIN URBAN RAILWAY CONSTRUCTION ACCIDENTS 城市铁路建设事故中不安全行为的风险传递特征探讨
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-06-06 DOI: 10.3846/jcem.2022.16924
Bing Tang, Shengyu Guo, Jichao Li, Wei Lu
Various construction accidents are proven to be caused by multiple unsafe behaviors (e.g., wrong use of PPE), but the risk transmission among different behaviors remains unclear. This paper provides insight into risk transmission through behavioral risk chain that leads to accidents from a system safety perspective. To better understand the coupling mechanism of various unsafe behaviors, integrate different behavioral risk chains and present the risk transmission process, a directed-weighted complex network (DWCN) method was adopted. Historical urban railway construction accidents in China are investigated to extract behavioral risk chain. A DW-BRCNA is applied to integrated behavioral risk chain and the behavioral risk transmission characteristics are explored and clarified by the five network properties, including degree and degree distribution, node strength and node strength distribution, average path length and diameter, weighted clustering coefficient and betweenness centrality. The results show that DW-BRCNA has the characteristics of a small-world, scale-free and hierarchical network, indicating that some unsafe behaviors are of greater importance in the process of risk transmission through behavioral risk chains. In addition, risk transmission in critical behavioral risk chains is more potentially to lead to accidents. This study proposed a new perspective of accident causation analysis from risk transmission among unsafe behaviors. It explains the risk transmission characteristics by a DWCN method based on behavioral risk chains. The findings also provide a practical guidance for developing control strategies on sites to prevent risk transmission and reduce accidents.
各种施工事故已被证明是由多种不安全行为(如错误使用个人防护用品)引起的,但不同行为之间的风险传递尚不清楚。本文从系统安全的角度深入了解了通过行为风险链导致事故的风险传递。为了更好地理解各种不安全行为的耦合机制,整合不同的行为风险链,呈现风险传递过程,采用了有向加权复杂网络(DWCN)方法。通过对我国城市铁路建设历史事故的调查,提取行为风险链。将DW-BRCNA应用于集成行为风险链,通过度和度分布、节点强度和节点强度分布、平均路径长度和直径、加权聚类系数和介数中心性五个网络特性,探索和阐明了行为风险的传递特征。结果表明,DW-BRCNA具有小世界、无标度和分级网络的特征,表明在通过行为风险链进行风险传递的过程中,一些不安全行为具有更大的重要性。此外,关键行为风险链中的风险传递更有可能导致事故。本研究从不安全行为之间的风险传递出发,提出了事故原因分析的新视角。它通过基于行为风险链的DWCN方法来解释风险传播特征。研究结果还为制定现场控制策略以防止风险传播和减少事故提供了实际指导。
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引用次数: 6
SCHEDULING REPETITIVE CONSTRUCTION PROJECTS: STRUCTURED LITERATURE REVIEW 重复建设项目的进度安排:结构化文献综述
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-05-27 DOI: 10.3846/jcem.2022.16943
M. Tomczak, P. Jaśkowski
Construction projects that involve repetitive operations are often referred to as repetitive construction projects. Scheduling them proves a task more demanding than in the case of projects in other industries. Typical objectives of optimization, a characteristic set of constraints, as well as the schedule’s susceptibility to the propagation of disruptions caused by materializing risks, call for specific scheduling methods. The authors review the literature to summarize the existing repetitive scheduling methods and put forward their classification to identify the method’s aspects needing refinement. This is done to point to directions of further research. The authors hope that this study will contribute to better identification of existing problems in planning repetitive construction projects and faster development of decision support systems, eagerly anticipated by the construction practitioners. Though the focus is on applications to construction projects, the repetitive scheduling methods that account for volatile operating conditions may be of interest to researchers who develop planning techniques for other industries.
涉及重复性作业的建设项目通常被称为重复性建设项目。事实证明,与其他行业的项目相比,安排这些项目是一项更加艰巨的任务。典型的优化目标、一组具有特征的约束,以及计划对由实现风险引起的中断传播的易感性,都需要特定的调度方法。通过文献综述,对现有的重复调度方法进行了总结,并对重复调度方法进行了分类,指出了重复调度方法需要改进的方面。这样做是为了指出进一步研究的方向。作者希望本研究能够有助于更好地识别重复性建设项目规划中存在的问题,加快决策支持系统的开发,这是建筑从业者所热切期待的。虽然重点是在建筑项目中的应用,但考虑到不稳定操作条件的重复调度方法可能会引起为其他行业开发规划技术的研究人员的兴趣。
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引用次数: 4
MACHINE LEARNING FOR TEXT CLASSIFICATION IN BUILDING MANAGEMENT SYSTEMS 建筑管理系统中文本分类的机器学习
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-05-12 DOI: 10.3846/jcem.2022.16012
J. J. Mesa-Jiménez, L. Stokes, QingPing Yang, V. Livina
In building management systems (BMS), a medium building may have between 200 and 1000 sensor points. Their labels need to be translated into a naming standard so they can be automatically recognised by the BMS platform. The current industrial practices often manually translate these points into labels (this is known as the tagging process), which takes around 8 hours for every 100 points. We introduce an AI-based multi-stage text classification that translates BMS points into formatted BMS labels. After comparing five different techniques for text classification (logistic regression, random forests, XGBoost, multinomial Naive Bayes and linear support vector classification), we demonstrate that XGBoost is the top performer with 90.29% of true positives, and use the prediction confidence to filter out false positives. This approach can be applied in sensors networks in various applications, where manual free-text data pre-processing remains cumbersome.
在建筑物管理系统(BMS)中,中型建筑物可以具有200到1000个传感器点。它们的标签需要翻译成命名标准,以便BMS平台自动识别。目前的工业实践通常手动将这些点转换为标签(这被称为标记过程),每100个点大约需要8个小时。我们介绍了一种基于人工智能的多阶段文本分类,将BMS点转换为格式化的BMS标签。在比较了五种不同的文本分类技术(逻辑回归、随机森林、XGBoost、多项式朴素贝叶斯和线性支持向量分类)后,我们证明XGBoost是表现最好的,其真阳性率为90.29%,并使用预测置信度来过滤假阳性。这种方法可以应用于各种应用中的传感器网络,其中手动自由文本数据预处理仍然很麻烦。
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引用次数: 1
AN EVIDENCE-BASED RISK DECISION SUPPORT APPROACH FOR METRO TUNNEL CONSTRUCTION 基于证据的地铁隧道施工风险决策支持方法
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-05-03 DOI: 10.3846/jcem.2022.16807
Y. Guo, Junjie Zheng, Rong-jun Zhang, Youbin Yang
The risk-informed decision-making of metro tunnel project is often faced with the problem of inadequate utilization of available information. In order to address the epistemic uncertainty problem caused by insufficient utilization of information in decision-making, this paper proposes a risk decision support approach for metro tunnel construction based on Continuous Time Bayesian Network (CTBN) technique. CTBN can factor the state space of variables in tunnel projects and perform evidence-based reasoning, which enables the diverse information of expert opinions, project-specific parameters, historical data and engineering anomalies to be the evidence to support decision-making. A concise CTBN model development method based on Dynamic Fault Trees is presented to replace the cumbersome model learning process. The proposed approach can utilize multi-source information as evidence to provide multi-form decision support both in the pre-construction stage and construction stage of the tunnel construction project, and the results can support the decisions on judging the acceptability of the risk, developing response strategies for risk factors and diagnosing the causes of the hazardous event. A case study on the water leakage risk of tunnel construction in China is presented to illustrate the feasibility of the approach. The case study shows that the approach can assist in making informed decisions, so as to improve the engineering safety.
地铁隧道工程风险决策常常面临信息利用不足的问题。为解决决策过程中信息利用不足所带来的认知不确定性问题,提出了一种基于连续时间贝叶斯网络(CTBN)技术的地铁隧道施工风险决策支持方法。CTBN可以因子化隧道项目中变量的状态空间,进行循证推理,使专家意见、项目具体参数、历史数据、工程异常等多种信息成为支持决策的证据。提出了一种简洁的基于动态故障树的CTBN模型开发方法,取代了繁琐的模型学习过程。该方法可以利用多源信息作为证据,为隧道施工项目的预施工阶段和施工阶段提供多形式的决策支持,其结果可以为风险可接受性判断、风险因素应对策略制定和危险事件原因诊断等决策提供支持。最后以中国某隧道施工的漏水风险为例,说明了该方法的可行性。实例研究表明,该方法有助于制定明智的决策,从而提高工程安全性。
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引用次数: 3
CYBERSECURITY ASSESSMENT OF BIM/CDE DESIGN ENVIRONMENT USING CYBER ASSESSMENT FRAMEWORK 利用网络评估框架对bim / cde设计环境进行网络安全评估
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-05-03 DOI: 10.3846/jcem.2022.16682
Žiga Turk, Muammer Semih Sonkor, Robert Klinc
Digitalisation of the construction industry is exposing it to cybersecurity risks. All phases of construction can be affected. Particularly vulnerable are information-intensive phases such as building design and building operation. Construction is among the last industries that are discovering its cybersecurity risks and can rely on frameworks developed for other contexts. In this paper, we evaluate the cybersecurity risks of the design phase of construction using the Cyber Assessment Framework from the National Cybersecurity Centre (NCSC) of the UK. The goal of this study is twofold. First, to examine cybersecurity risks themselves, and second, to evaluate the applicability of the NCSC framework for construction to see if and how construction is specific. The analysis shows that the cybersecurity risks follow the information impact curve that has been motivating the introduction of Building Information Modelling (BIM). The framework is applicable but is weak in addressing the specifics of the construction industrial ecosystem, which involves a multitude of dynamically connected actors, their overlapping authorities, and conflicting motives. It is suggested that a specialized constructionrelated framework should be developed.
建筑行业的数字化使其面临网络安全风险。施工的所有阶段都可能受到影响。尤其脆弱的是信息密集的阶段,如建筑设计和建筑运营。建筑业是最后发现其网络安全风险的行业之一,可以依赖为其他环境开发的框架。在本文中,我们使用英国国家网络安全中心(NCSC)的网络评估框架来评估建设设计阶段的网络安全风险。这项研究的目的是双重的。首先,检查网络安全风险本身,其次,评估NCSC框架建设的适用性,以了解建设是否具体以及如何具体。分析表明,网络安全风险遵循信息影响曲线,这推动了建筑信息模型(BIM)的引入。该框架是适用的,但在解决建筑工业生态系统的具体问题时很弱,因为建筑工业生态系统涉及大量动态连接的参与者,他们的重叠权限和相互冲突的动机。建议制定一个专门的建筑相关框架。
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引用次数: 7
CAUSES AND EFFECTS OF POOR COMMUNICATION IN THE CONSTRUCTION INDUSTRY IN THE MENA REGION 梅纳地区建筑业沟通不畅的原因及影响
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-05-03 DOI: 10.3846/jcem.2022.16728
Akram Suleiman
The construction industry in the Middle East and North Africa (MENA) faces many challenges throughout the project’s lifecycle; on top of these challenges is poor communication which occasionally results in project failure or at least time and cost overruns. A range of steps and methods must be taken to minimize the causes and effects of poor communication to enhance communication. The main aim of the study is to exploring poor communication in MENA construction industry and defining the causes and effects of poor communication from the perspective of consultants, clients, and contractors in small and medium enterprises in a developed region like MENA. Construction professionals from different project parties were asked to complete a questionnaire listing 32 causes and 21 effects of poor communication identified from the literature. The model was validated by Structural Equation Modelling SEM in terms of convergent and discriminant validities. The results revealed, that out of 54 cause and effect factors of poor communication, only 18 factors were retained. These causes and effects were ranked using the relative importance index RII. Results showed that all causes and effects are highly important, with RII above 0.6. The most important causes of poor communication are lack of communication procedure and training, followed by lack of adequate representation for project stakeholders. However, the least important cause of poor communication is a lack of understanding among the construction parties. Conversely, the most acute effects of poor communication are misinterpretation, followed by conflict among construction parties. However, the least important effect of poor communication is a late response to the disaster. Results and recommendations derived from this study represent the vital need of the MENA construction industry to focus on enhancing the current status of communication. The commitment of all project stakeholders to the drawn recommendations regarding the causes of poor communication will undoubtedly limit or reduce the effects of poor communication. Construction firms looking to improve their performance may benefit from the developed model.
中东和北非(MENA)的建筑业在整个项目生命周期内面临许多挑战;除了这些挑战之外,沟通不畅偶尔会导致项目失败,或者至少会导致时间和成本超支。必须采取一系列步骤和方法,最大限度地减少沟通不良的原因和影响,以加强沟通。本研究的主要目的是从中东和北非等发达地区中小型企业的顾问、客户和承包商的角度,探讨中东和北非建筑业沟通不良的原因和影响。来自不同项目方的建筑专业人员被要求完成一份问卷,列出了从文献中确定的沟通不良的32个原因和21个影响。该模型通过结构方程建模SEM在收敛性和判别有效性方面进行了验证。结果显示,在54个沟通不良的因果因素中,只有18个因素被保留下来。使用相对重要性指数RII对这些原因和影响进行排名。结果表明,所有原因和影响都非常重要,RII高于0.6。沟通不畅的最重要原因是缺乏沟通程序和培训,其次是项目利益相关者缺乏足够的代表性。然而,沟通不畅的最不重要原因是施工方之间缺乏理解。相反,沟通不畅最严重的影响是误解,其次是施工方之间的冲突。然而,沟通不畅最不重要的影响是对灾难反应迟缓。这项研究得出的结果和建议代表了中东和北非地区建筑业关注提高通信现状的迫切需要。所有项目利益相关者对拟定的关于沟通不良原因的建议的承诺无疑将限制或减少沟通不良的影响。希望改善业绩的建筑公司可能会从开发的模式中受益。
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引用次数: 6
STUDY ON SEISMIC RESPONSE OF A NEW STAGGERED STORY ISOLATED STRUCTURE CONSIDERING SSI EFFECT 考虑ssi效应的新型交错层隔震结构地震反应研究
IF 4.3 3区 工程技术 Q1 ENGINEERING, CIVIL Pub Date : 2022-05-03 DOI: 10.3846/jcem.2022.16825
Dewen Liu, Liping Li, Yafei Zhang, Lihao Chen, Feng Wan, Fan Yang
The new staggered story isolated structure is a new type of seismic isolated structure developed from base isolated structure and inter-story isolated structure. In order to explore the seismic response of the new staggered story isolated structure considering the soil-structure interaction (SSI), the model of a new staggered story isolated structure considering SSI effect is established to analyze the nonlinear dynamic time-history response under rare earthquakes, and the comparison between hard soil and soft soil was carried out. Results show that the stiffness of the new staggered story isolated structure reduced, the modal period extended and the seismic response reduced by considering the SSI effect, the softer the site soil, the more obvious those changes are. Meanwhile, the shear force and the damage of the core tube decreases, while the shear force and the damage of the frame increases, the shear force transfers from the core tube to the frame. Additionally, the energy absorption of the seismic isolated bearings at the frame reduced, the energy absorption of the seismic isolated bearings at the core tube increased, the softer the site soil, the more obvious the trend is.
交错层隔震结构是在基础隔震结构和层间隔震结构基础上发展起来的一种新型隔震结构。为了探讨考虑土-结构相互作用(SSI)的新型交错层隔震结构的地震反应,建立了考虑SSI效应的新型交错层隔震结构模型,分析了罕见地震作用下交错层隔震结构的非线性动力时程反应,并进行了硬土与软土的对比。结果表明:考虑SSI效应后,新交错层隔震结构刚度减小,模态周期延长,地震响应减小,场地土越软,这种变化越明显;同时,剪力和核心筒损伤减小,而剪力和框架损伤增大,剪力由核心筒向框架传递。此外,框架处隔震支座的吸能减小,核心筒处隔震支座的吸能增加,场地土越软,趋势越明显。
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引用次数: 7
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Journal of Civil Engineering and Management
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