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The feasibility of transparent solar panels for high-rise building façade in Sri Lanka 斯里兰卡高层建筑使用透明太阳能板的可行性
Pub Date : 2023-11-13 DOI: 10.1108/ci-06-2023-0150
Thisara Manupriya Sathkumara, Anuradha Samarajeewa Waidyasekara, Hasith Chathuranga Victar
Purpose The use of renewable energy has become necessary because of the harmful effects of current energy sources on the environment, limited availability and financial crisis. Transparent solar panels have emerged as a promising technology for integrating renewable energy generation into building structures. Therefore, this paper aims to explore the feasibility of transparent solar panels for high-rise building façades in Sri Lanka. Design/methodology/approach The research apprehended a qualitative approach, including two expert interview rounds adhering to the Delphi technique with 17 and 15 experts each per round. Manual content analysis was incorporated to analyse the collected data. Findings Regarding operation and maintenance, the study emphasizes the importance of regular inspection, cleaning and repair of transparent solar panels to ensure optimal performance and longevity. These activities contribute to maximizing energy generation and maintaining the aesthetic appeal of the building. The benefits of implementing transparent solar panels on building façades are manifold. They include renewable energy generation, reduced greenhouse gas emissions, improved energy efficiency and enhanced architectural aesthetics. Furthermore, the research findings underscore the potential of transparent solar panels to contribute to Sri Lanka’s sustainable development goals and address the country’s increasing energy demand. However, the study also identifies challenges that need to be addressed for successful implementation. Originality/value This study contributes to understanding the feasibility of transparent solar panels for high-rise building façades in Sri Lanka. The research findings offer valuable insights into the operation and maintenance aspects, benefits, challenges and strategies for implementing transparent solar panels effectively. This knowledge can guide policymakers, architects and developers in making informed decisions regarding the integration of transparent solar panels, thereby promoting sustainable and energy-efficient building practices in Sri Lanka.
由于现有能源对环境的有害影响、可用性有限和金融危机,使用可再生能源已成为必要。透明太阳能电池板已经成为一种很有前途的技术,可以将可再生能源发电整合到建筑结构中。因此,本文旨在探讨透明太阳能电池板在斯里兰卡高层建筑立面的可行性。设计/方法/方法本研究采用定性方法,包括两轮专家访谈,每轮分别有17位和15位专家。采用人工内容分析对收集到的数据进行分析。在操作和维护方面,研究强调了定期检查、清洁和维修透明太阳能电池板的重要性,以确保最佳的性能和寿命。这些活动有助于最大限度地产生能量,并保持建筑的美学吸引力。在建筑立面上安装透明太阳能电池板的好处是多方面的。它们包括可再生能源发电、减少温室气体排放、提高能源效率和增强建筑美学。此外,研究结果强调了透明太阳能电池板在促进斯里兰卡可持续发展目标和解决该国日益增长的能源需求方面的潜力。然而,该研究也指出了为成功实施需要解决的挑战。独创性/价值本研究有助于了解斯里兰卡高层建筑立面透明太阳能电池板的可行性。研究结果为有效实施透明太阳能电池板的操作和维护方面、好处、挑战和策略提供了有价值的见解。这些知识可以指导决策者、建筑师和开发商就透明太阳能电池板的集成做出明智的决定,从而促进斯里兰卡的可持续和节能建筑实践。
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引用次数: 0
Detecting skewed pricing in tenders for public-sector projects 发现公共部门项目投标中的扭曲定价
Pub Date : 2023-11-13 DOI: 10.1108/ci-06-2023-0131
Khaled Hesham Hyari, Mujahed Thneibat
Purpose Skewed pricing is a typical tactic used by tenderers in unit price projects to gain additional advantages at the expense of the owner or other competing tenderers. This paper aims to describe the development of a model for detecting skewed pricing in competitive tendering for unit price contracts. Design/methodology/approach The model evaluates how much the offered unit rates for work items deviate from the reasonable rate identified from the item’s submitted unit rates. Item rate deviations are integrated into a total deviation score for each submitted tender based on the relative weight of the work item to the total project amount. The model allows for assigning higher weights to work items that are more prone to skewed pricing, such as those that are performed early and those that are expected to experience quantity fluctuations. Findings The paper presents a detection model that uses only the submitted prices of the competing tenderers to perform the needed calculations, which reduces subjectivity in identifying skewed tenders. Two examples are given to demonstrate how the model may be used to detect skewed tenders. Originality/value The model supports tendering officials in the challenging task of identifying skewed tenders, which is required by rules and regulations governing public procurement. The model’s ease of use is expected to make it more widely used as a decision-support tool during the tender evaluation stage of real-world projects.
扭曲定价是招标人在单价项目中使用的一种典型策略,以牺牲业主或其他竞争投标者的利益为代价,获得额外的优势。本文的目的是描述一个模型的发展,用于检测单位价格合同竞争性招标中的扭曲定价。该模型评估为工作项提供的单位费率与从项目提交的单位费率确定的合理费率之间的偏差程度。根据工作项相对于总项目金额的相对权重,项目率偏差被集成到每个提交投标的总偏差评分中。该模型允许为更容易产生定价偏差的工作项分配更高的权重,例如那些早期执行的工作项和那些预计会经历数量波动的工作项。本文提出了一种检测模型,该模型仅使用竞争投标者提交的价格来执行所需的计算,从而减少了识别扭曲投标的主观性。给出了两个例子来演示如何使用该模型来检测倾斜投标。原创性/价值该模型支持招标官员识别扭曲投标的挑战性任务,这是管理公共采购的规则和条例所要求的。该模型的易用性有望使其在实际项目的评标阶段作为决策支持工具得到更广泛的应用。
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引用次数: 0
Understanding the key risks in circular construction projects: from systematic review to conceptual framework 了解循环建设项目的主要风险:从系统审查到概念框架
Pub Date : 2023-11-09 DOI: 10.1108/ci-04-2023-0068
Ibrahim Yahaya Wuni, Derek Asante Abankwa
Purpose Circular construction offers sustainable solutions and opportunities to disentangle a project’s life cycle, including demolition, deconstruction and repurposing of architectural, civil engineering and infrastructure projects from the extraction of natural resources and their wasteful usage. However, it introduces additional layers of novel risks and uncertainties in the delivery of projects. The purpose of this study is to review the relevant literature to discover, classify and theorize the critical risk factors for circular construction projects. Design/methodology/approach The paper conducted a systematic literature review to investigate the risks of circular construction projects. It deployed a multistage approach, including literature search and assessment, metadata extraction, citation frequency analysis, Pareto analysis and total interpretive structural modeling. Findings Sixty-eight critical risk factors were identified and categorized into nine broad taxonomies: material risks, organizational risks, supply chain risks, technological risks, financial risks, design risks, health and safety risks, regulatory risks and stakeholder risks. Using the Pareto analysis, a conceptual map of 47 key critical risk factors was generated for circular construction projects. A hierarchical model was further developed to hypothesize the multiple possible connections and interdependencies of the taxonomies, leading to chain reactions and push effects of the key risks impacting circular construction projects. Originality/value This study constitutes the first systematic review of the literature, consolidating and theorizing the chain reactions of the critical risk factors for circular construction projects. Thus, it provides a better understanding of risks in circular construction projects.
循环建筑提供了可持续的解决方案和机会来解开项目的生命周期,包括拆除,解构和重新利用建筑,土木工程和基础设施项目,从自然资源的提取和浪费的使用。然而,它在项目交付中引入了额外的风险和不确定性。本研究的目的是回顾相关文献,以发现、分类和理论化循环建设项目的关键风险因素。设计/方法/方法本文进行了系统的文献综述,以调查循环建设项目的风险。采用文献检索与评估、元数据提取、被引频次分析、帕累托分析和总解释结构建模等多阶段方法。研究结果确定了68个关键风险因素,并将其分为9大类:材料风险、组织风险、供应链风险、技术风险、财务风险、设计风险、健康和安全风险、监管风险和利益相关者风险。利用帕累托分析,为循环建设项目生成了47个关键风险因素的概念图。进一步建立了一个层次模型,以假设分类之间的多种可能联系和相互依赖性,从而导致影响循环建设项目的关键风险的连锁反应和推动效应。独创性/价值本研究首次对文献进行系统回顾,将循环建设项目关键风险因素的连锁反应整合并理论化。因此,它提供了一个更好的了解风险在循环建设项目。
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引用次数: 0
A critical review of quantity surveying education in an offsite construction perspective: strategies for up-skilling 非现场施工视角下的工料测量教育:提升技能的策略
Pub Date : 2023-11-07 DOI: 10.1108/ci-12-2022-0322
Buddhini Ginigaddara, Thayaparan Gajendran, Cameron Beard
Purpose Offsite construction (OSC) is a modern method of construction (MMC) that involves manufacturing and assembly of buildings. Industry 4.0-driven technological advancements have accelerated OSC uptake causing many skilled construction workers requiring re-skilling or up-skilling. Quantity surveyors currently play an important role throughout a construction project life cycle, and hence, their knowledge on OSC projects is vital for the continuity of quantity surveying (QS) profession. The purpose of this paper is to critically review QS education in an OSC perspective and to propose strategies for up-skilling. Design/methodology/approach This research includes a detailed literature review of QS and OSC to evaluate how OSC affects the QS profession. Publicly available information on the university websites on accredited QS and construction management degrees was reviewed to identify OSC and MMC references, specifically the content listing and learning outcomes. Findings Out of the 315 degrees offered by 157 universities, only 69 degrees in 32 universities refer to OSC or MMC. OSC concept is explicitly referred in subjects related to construction technology, production management, lean construction, digital construction and MMC. As such, the research suggests including lean production principles, OSC techniques and design philosophies such as design for manufacture and assembly be added to the QS curricula. Research limitations/implications This research is a comprehensive desktop study that does not involve empirical data-based evaluation. Research findings inform strategies to improve QS education and professional competencies. Originality/value To the best of the authors’ knowledge, this paper is the first of its kind that evaluates accredited QS degrees and learning requirements in an OSC perspective.
非现场施工(OSC)是一种涉及建筑物制造和组装的现代施工方法。工业4.0驱动的技术进步加速了OSC的吸收,导致许多熟练的建筑工人需要重新培训或提高技能。工料测量师目前在整个建设项目生命周期中发挥着重要作用,因此,他们对OSC项目的了解对于工料测量(QS)专业的连续性至关重要。本文的目的是在OSC的视角下批判性地回顾QS教育,并提出提高技能的策略。本研究包括对QS和OSC的详细文献综述,以评估OSC如何影响QS职业。对大学网站上关于QS和建筑管理学位认证的公开信息进行了审查,以确定OSC和MMC的参考资料,特别是内容列表和学习成果。在157所大学提供的315个学位中,只有32所大学的69个学位涉及OSC或MMC。在施工技术、生产管理、精益施工、数字化施工、MMC等相关学科中都明确提到了OSC的概念。因此,研究建议将精益生产原则、OSC技术和设计哲学(如制造和装配设计)添加到QS课程中。本研究是一项综合性的桌面研究,不涉及基于经验数据的评估。研究结果为提高QS教育和专业能力的策略提供信息。据作者所知,本文是第一篇从OSC的角度评估QS认证学位和学习要求的论文。
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引用次数: 0
Development and testing of lean simulation game on set-based design 基于集合设计的精益仿真游戏开发与测试
Pub Date : 2023-11-03 DOI: 10.1108/ci-07-2022-0161
Kavya Jain, Ganesh Devkar
Purpose Set-based design (SBD) is a lean tool widely adopted for improving design processes and providing value maximization to clients. The purpose of this paper is to present the development and testing of a lean simulation game that incorporated point-based and SBD principles. The objective of the game was to enhance learning of lean design management among construction students. Design/methodology/approach After a thorough and comprehensive literature review consisting of secondary data in journal papers, books, thesis references and primary data in the form of interviews with lean practitioners, the simulation game prototype was developed. The testing of the game was carried out with a study group. Data were collected during the gameplay with the help of a questionnaire survey on a confidence scale and Likert scale and assessed using the Wilcoxon signed-rank test, histogram, one-sample t -test and false discovery rate (Benjamini–Hochberg) correction method. Findings The data collected both pre- and post-simulation showed an increase in average confidence in understanding from 3.33 to 3.89, a 16.7% rise. The data was further interpreted by using Wilcoxon signed-rank test, indicating that the post-simulation learning experience was significantly better than the pre-simulation one. Promising positive results were obtained for the questions on game design, engagement and understanding of point-based design and SBD concepts. Originality/value The simulation game helps bridge the gap between knowledge building and real-life by effectively imitating the process. The game facilitates a dynamic and critical approach toward developing new educational simulation games and their successful incorporation in propagating lean principles in the construction industry.
基于集合的设计(SBD)是一种被广泛采用的精益设计工具,用于改进设计过程,为客户提供价值最大化。本文的目的是介绍一个精益模拟游戏的开发和测试,该游戏结合了基于点数和SBD的原则。游戏的目的是加强建筑专业学生对精益设计管理的学习。在对期刊论文、书籍、论文参考资料和精益实践者访谈形式的主要数据进行了彻底而全面的文献回顾之后,模拟游戏原型得以开发。这个游戏的测试是由一个学习小组进行的。在游戏过程中,我们通过信心量表和李克特量表收集数据,并使用Wilcoxon sign -rank检验、直方图、单样本t检验和错误发现率(Benjamini-Hochberg)校正方法进行评估。模拟前后收集的数据显示,理解的平均置信度从3.33增加到3.89,增加了16.7%。使用Wilcoxon符号秩检验进一步解释数据,表明模拟后的学习体验明显优于模拟前的学习体验。关于游戏设计、用户粘性以及对基于点的设计和SBD概念的理解的问题获得了积极的结果。独创性/价值模拟游戏通过有效地模仿过程,帮助弥合知识积累与现实生活之间的差距。该游戏为开发新的教育模拟游戏提供了一种动态和批判性的方法,并成功地将其与建筑行业的精益原则相结合。
{"title":"Development and testing of lean simulation game on set-based design","authors":"Kavya Jain, Ganesh Devkar","doi":"10.1108/ci-07-2022-0161","DOIUrl":"https://doi.org/10.1108/ci-07-2022-0161","url":null,"abstract":"Purpose Set-based design (SBD) is a lean tool widely adopted for improving design processes and providing value maximization to clients. The purpose of this paper is to present the development and testing of a lean simulation game that incorporated point-based and SBD principles. The objective of the game was to enhance learning of lean design management among construction students. Design/methodology/approach After a thorough and comprehensive literature review consisting of secondary data in journal papers, books, thesis references and primary data in the form of interviews with lean practitioners, the simulation game prototype was developed. The testing of the game was carried out with a study group. Data were collected during the gameplay with the help of a questionnaire survey on a confidence scale and Likert scale and assessed using the Wilcoxon signed-rank test, histogram, one-sample t -test and false discovery rate (Benjamini–Hochberg) correction method. Findings The data collected both pre- and post-simulation showed an increase in average confidence in understanding from 3.33 to 3.89, a 16.7% rise. The data was further interpreted by using Wilcoxon signed-rank test, indicating that the post-simulation learning experience was significantly better than the pre-simulation one. Promising positive results were obtained for the questions on game design, engagement and understanding of point-based design and SBD concepts. Originality/value The simulation game helps bridge the gap between knowledge building and real-life by effectively imitating the process. The game facilitates a dynamic and critical approach toward developing new educational simulation games and their successful incorporation in propagating lean principles in the construction industry.","PeriodicalId":221945,"journal":{"name":"Construction Innovation: Information, Process, Management","volume":"133 S230","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135775937","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
Structuring risks for a comprehensive understanding of cost overruns in power plant projects 对电厂项目中成本超支的风险进行结构分析
Pub Date : 2023-10-27 DOI: 10.1108/ci-05-2022-0120
Muhammad Saiful Islam, Madhav Nepal, Martin Skitmore
Purpose Power plant projects are very complex and encounter serious cost overruns worldwide. Their cost overrun risks are not independent but interrelated in many cases, having structural relationships among each other. The purpose of this study is, therefore, to establish the complex structural relationships of risks involved. Design/methodology/approach In total, 76 published articles from the previous literature are reviewed using the content analysis method. Three risk networks in different phases of power plant projects are depicted based on literature review and case studies. The possible methods of solving these risk networks are also discussed. Findings The study finds critical cost overrun risks and develops risk networks for the procurement, civil and mechanical works of power plant projects. It identifies potential models to assess cost overrun risks based on the developed risk networks. The literature review also revealed some research gaps in the cost overrun risk management of power plants and similar infrastructure projects. Practical implications This study will assist project risk managers to understand the potential risks and their relationships to prevent and mitigate cost overruns for future power plant projects. It will also facilitate decision-makers developing a risk management framework and controlling projects’ cost overruns. Originality/value The study presents conceptual risk networks in different phases of power plant projects for comprehending the root causes of cost overruns. A comparative discussion of the relevant models available in the literature is presented, where their potential applications, limitations and further improvement areas are discussed to solve the developed risk networks for modeling cost overrun risks.
在世界范围内,电厂项目非常复杂,经常遇到严重的成本超支问题。它们的成本超支风险在很多情况下不是独立的,而是相互关联的,彼此之间存在结构性关系。因此,本研究的目的是建立所涉及风险的复杂结构关系。设计/方法/方法总共使用内容分析法对以往文献中发表的76篇文章进行了回顾。在文献综述和案例分析的基础上,描述了电厂项目不同阶段的三种风险网络。讨论了解决这些风险网络的可能方法。该研究发现了关键的成本超支风险,并为电厂项目的采购、土木和机械工程建立了风险网络。它根据已开发的风险网络确定了评估成本超支风险的潜在模型。文献综述也揭示了电厂及类似基础设施项目成本超支风险管理的一些研究空白。本研究将协助项目风险管理人员了解潜在风险及其关系,以预防和减轻未来电厂项目的成本超支。它还将促进决策者制定风险管理框架和控制项目的成本超支。本研究提出电厂项目不同阶段的概念性风险网络,以了解成本超支的根本原因。对文献中可用的相关模型进行了比较讨论,讨论了它们的潜在应用、局限性和进一步改进的领域,以解决用于建模成本超支风险的发达风险网络。
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引用次数: 0
A scoping review of research on mental health conditions among young construction workers 青年建筑工人心理健康状况研究的范围综述
Pub Date : 2023-10-24 DOI: 10.1108/ci-06-2023-0133
Samuel Frimpong, Riza Yosia Sunindijo, Cynthia Changxin Wang, Elijah Frimpong Boadu, Ayirebi Dansoh, Rasaki Kolawole Fagbenro
Purpose Current research on mental health in the construction industry is fragmented, making it difficult to obtain a complete picture of young construction workers’ mental health conditions. This situation adversely affects research progress, mental health-care planning and resource allocation. To address this challenge, the purpose of this paper was to identify the themes of mental health conditions among young construction workers and their prevalence by geographical location. Design/methodology/approach The scoping review was conducted using meta-aggregation, guided by the CoCoPop (condition [mental health], context [construction industry] and population [construction workers 35 years old and younger]) and PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews) frameworks. Findings A total of 327 studies were retrieved, and 14 studies published between 1993 and 2022 met the inclusion criteria. The authors identified 13 mental health conditions and categorized them under nine themes. Mood disorders, anxiety disorders and substance-related disorders constituted the most researched themes. Studies predominantly focused on young male workers in the Global North. The prevalence estimates reported in most of the studies were above the respective country’s prevalence. Originality/value This review extends previous studies by focusing specifically on the themes of mental health conditions and giving attention to young construction workers whose health needs remain a global priority. The study emphasizes the need to give research attention to lesser-studied aspects of mental health, such as positive mental health. The need to focus on female construction workers and on homogenous sub-groups of young workers is also emphasized. The findings can guide future systematic reviews on the identified thematic areas and help to plan the development of interventions.
目的目前对建筑行业心理健康的研究较为零散,难以全面了解青年建筑工人的心理健康状况。这种情况对研究进展、精神保健规划和资源分配产生不利影响。为了应对这一挑战,本文的目的是确定年轻建筑工人心理健康状况的主题及其按地理位置的患病率。在CoCoPop(条件[心理健康]、环境[建筑行业]和人口[35岁及以下的建筑工人])和PRISMA-ScR(系统评价的首选报告项目和范围评价的元分析扩展)框架的指导下,采用元聚合法进行范围评价。共检索到327项研究,1993年至2022年间发表的14项研究符合纳入标准。作者确定了13种心理健康状况,并将其分为9个主题。情绪障碍、焦虑障碍和物质相关障碍是研究最多的主题。研究主要集中在全球北方的年轻男性工人身上。大多数研究报告的流行率估计高于各自国家的流行率。原创性/价值本综述扩展了以前的研究,特别关注心理健康状况的主题,并关注年轻建筑工人,他们的健康需求仍然是全球优先事项。该研究强调,有必要把研究重点放在心理健康研究较少的方面,比如积极的心理健康。还强调需要把重点放在女性建筑工人和青年工人的同质次群体上。研究结果可以指导今后对确定的专题领域进行系统审查,并有助于规划干预措施的制定。
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引用次数: 0
Time-series forecasting of road distress parameters using dynamic Bayesian belief networks 基于动态贝叶斯信念网络的道路遇险参数时序预测
Pub Date : 2023-10-05 DOI: 10.1108/ci-09-2022-0233
Babitha Philip, Hamad AlJassmi
Purpose To proactively draw efficient maintenance plans, road agencies should be able to forecast main road distress parameters, such as cracking, rutting, deflection and International Roughness Index (IRI). Nonetheless, the behavior of those parameters throughout pavement life cycles is associated with high uncertainty, resulting from various interrelated factors that fluctuate over time. This study aims to propose the use of dynamic Bayesian belief networks for the development of time-series prediction models to probabilistically forecast road distress parameters. Design/methodology/approach While Bayesian belief network (BBN) has the merit of capturing uncertainty associated with variables in a domain, dynamic BBNs, in particular, are deemed ideal for forecasting road distress over time due to its Markovian and invariant transition probability properties. Four dynamic BBN models are developed to represent rutting, deflection, cracking and IRI, using pavement data collected from 32 major road sections in the United Arab Emirates between 2013 and 2019. Those models are based on several factors affecting pavement deterioration, which are classified into three categories traffic factors, environmental factors and road-specific factors. Findings The four developed performance prediction models achieved an overall precision and reliability rate of over 80%. Originality/value The proposed approach provides flexibility to illustrate road conditions under various scenarios, which is beneficial for pavement maintainers in obtaining a realistic representation of expected future road conditions, where maintenance efforts could be prioritized and optimized.
为了主动制定有效的养护计划,道路管理机构应该能够预测主要的道路病害参数,如裂缝、车辙、偏转和国际粗糙度指数(IRI)。尽管如此,这些参数在整个路面生命周期中的行为具有很高的不确定性,这是由于各种相互关联的因素随着时间的推移而波动造成的。本研究旨在提出利用动态贝叶斯信念网络建立时间序列预测模型,对道路遇险参数进行概率预测。设计/方法/方法虽然贝叶斯信念网络(BBN)具有捕获与领域中变量相关的不确定性的优点,但由于其马尔可夫和不变的转移概率特性,动态BBN尤其被认为是预测一段时间内道路状况的理想选择。利用2013年至2019年期间从阿拉伯联合酋长国32个主要路段收集的路面数据,开发了四个动态BBN模型来表示车辙、偏转、开裂和IRI。这些模型基于影响路面劣化的几个因素,将其分为三类:交通因素、环境因素和道路特定因素。结果所建立的4种性能预测模型总体精度和信度均在80%以上。独创性/价值建议的方法提供了灵活性,以说明各种情况下的道路状况,这有利于路面维修人员获得预期未来道路状况的现实表示,从而可以优先考虑和优化维修工作。
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引用次数: 0
A BIM based tool for evaluating building renovation strategies: the case of three demonstration sites in different European countries 基于BIM的建筑改造策略评估工具:以欧洲不同国家的三个示范点为例
Pub Date : 2023-10-02 DOI: 10.1108/ci-12-2022-0314
Omar Doukari, Mohamad Kassem, Enrico Scoditti, Rahim Aguejdad, David Greenwood
Purpose Buildings are among the biggest contributors to environmental impacts. To achieve energy-saving and decarbonisation objectives while also improving living conditions, it is imperative to undertake large-scale renovations of existing buildings, which constitute the greater part of building stock and have relatively low energy efficiency. However, building renovation projects poses significant challenges owing to the absence of optimised tools and methods for planning and executing renovation works, coupled with the need for a high degree of interaction with occupants. Design/methodology/approach This paper describes the development of an automated process, based on building information modelling (BIM) and the principal component analysis method, for overcoming building renovation challenges. The process involves the assessment and simulation of renovation scenarios in terms of duration, cost, effort needed and disruptive potential. The proposed process was tested in three case studies; multi-residence apartment buildings comprising different construction components and systems, located in Greece, France and Denmark, on which six different renovation strategies were evaluated using sensitivity analysis. Findings The developed tool was successfully able to model and simulate the six renovation scenarios across the three demonstration sites. The ability to simulate various renovation scenarios for a given project can help to strategise renovation interventions based on selected key performance indicators as well as their correlation at two different levels: the building level and the renovated surface area level. Originality/value The objectives of this paper are twofold: firstly, to present an automated process, using BIM, for evaluating and comparing renovation scenarios in terms of duration, cost, workers needed and disruptive potential; next, to show the subsequent testing of the process and the analysis of its applicability and behaviour when applied on three live demonstration sites located in three different European countries (France, Greece and Denmark), involving six renovation scenarios.
用途建筑是造成环境影响的最大因素之一。为了实现节能和脱碳的目标,同时改善生活条件,必须对现有建筑进行大规模改造,这些建筑占建筑存量的大部分,能源效率相对较低。然而,由于缺乏优化的工具和方法来规划和执行翻新工程,再加上需要与居住者进行高度的互动,建筑翻新项目带来了巨大的挑战。设计/方法/方法本文描述了一种基于建筑信息模型(BIM)和主成分分析方法的自动化过程的开发,以克服建筑翻新的挑战。该过程包括评估和模拟在持续时间、成本、所需努力和破坏性潜力方面的改造方案。提议的程序在三个案例研究中得到检验;位于希腊、法国和丹麦的多住宅公寓楼由不同的建筑组件和系统组成,使用敏感性分析对六种不同的改造策略进行了评估。开发的工具能够成功地对三个示范点的六个改造场景进行建模和模拟。模拟给定项目的各种翻新方案的能力可以帮助制定基于选定的关键绩效指标的翻新干预策略,以及它们在两个不同层面上的相关性:建筑层面和翻新的表面面积层面。原创性/价值本文的目标有两个:首先,提出一个自动化的过程,使用BIM,在持续时间、成本、所需工人和破坏性潜力方面评估和比较改造方案;接下来,展示该过程的后续测试以及在三个不同的欧洲国家(法国、希腊和丹麦)的三个现场示范地点应用时对其适用性和行为的分析,涉及六种改造方案。
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引用次数: 1
Adoption of the digitalised last planner system in infrastructure projects: an Australian case study 数字化最后规划系统在基础设施项目中的应用:澳大利亚案例研究
Pub Date : 2023-09-29 DOI: 10.1108/ci-03-2023-0058
Shang Gao, Toong-Khuan Chan, Phil Hendy
Purpose Infrastructure projects are complex, task-based endeavours; the reliability of project schedules is often low, as delays occur. As a result, the infrastructure sector is constantly searching for innovative practices that might improve project performance. This study aims to pursue one research question: what are the benefits and challenges to last planner system (LPS) implementation in Australia’s infrastructure industry? It addresses this question through an examination of two rail infrastructure projects in Victoria, Australia. Design/methodology/approach The state of Victoria in Australia provides an excellent context for this study. The study was set in one of the programme alliances which was contracted to carry out five level-crossing removal projects. This study uses a combination of qualitative and quantitative research techniques, including surveys, interviews and site visits. The authors collected 43 valid survey responses. Additionally, 19 participants from the alliance programme’s two projects (Projects A and B) took part in the interviews. Extensive empirical evidence has been triangulated to achieve the research goals. Findings The findings show through the questionnaire survey that the greatest benefits that digital LPS brings are primarily associated with process improvement and social benefits. The interview results acknowledged that the roll-out of digital LPS had a positive impact on schedules, cost, occupational health and safety (OHS) and quality performance. The research also noted a few challenges in the introduction of digital LPS. Overall, the finding presents strong evidence that the introduction of digital LPS has been a clear success in the case company. Originality/value This is the first piece of research to fill this major gap in the LPS literature by exploring the issue of digital LPS adoption in Australia’s infrastructure sector. This study has thus laid the foundation for future work on LPS research in the Australian context. The authors are optimistic that this exploratory work will generate interest across other alliances, and perhaps extend into Australia’s construction sector.
基础设施项目是复杂的、以任务为基础的工作;项目进度表的可靠性通常很低,因为会出现延迟。因此,基础设施部门不断寻找可能提高项目绩效的创新实践。本研究旨在探讨一个研究问题:在澳大利亚基础设施行业实施最后规划系统(LPS)的好处和挑战是什么?本文通过对澳大利亚维多利亚州两个铁路基础设施项目的考察来解决这个问题。设计/方法/方法澳大利亚的维多利亚州为本研究提供了一个极好的背景。这项研究是在其中一个计划联盟中进行的,该计划联盟签约进行五个平交道口拆除项目。本研究采用定性和定量相结合的研究方法,包括调查、访谈和实地考察。作者收集了43份有效的调查回复。此外,来自联盟计划的两个项目(项目A和项目B)的19名参与者参加了采访。广泛的经验证据已经三角化,以实现研究目标。通过问卷调查发现,数字化LPS带来的最大效益主要与流程改进和社会效益相关。访谈结果表明,数字化LPS的推出对进度、成本、职业健康与安全(OHS)以及质量绩效产生了积极影响。该研究还指出了引入数字LPS的一些挑战。总的来说,这一发现提供了强有力的证据,表明数字化LPS的引入在案例公司取得了明显的成功。这是通过探索澳大利亚基础设施部门采用数字LPS的问题来填补LPS文献中这一主要空白的第一项研究。本研究为今后在澳大利亚背景下开展LPS研究奠定了基础。作者乐观地认为,这项探索性工作将引起其他联盟的兴趣,并可能扩展到澳大利亚的建筑行业。
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Construction Innovation: Information, Process, Management
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