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Evaluating the Environmental Performance of 3D Printed Shelters in Jordan 评估约旦3D打印避难所的环境性能
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.6
Mohanad Akeila, C. Preece, K. Kuok
Three-dimensional (3D) printed shelters are an innovative housing solution for those in need of a shelter after a disaster. The Middle East generated a huge number of refugees due to internal conflicts. The technology has been investigated earlier from a cost and time perspectives and has performed better than steel shelters in Jordan. This research article investigates environmental performance of 3D printed shelters in Jordan in terms of energy, fuel, cooling and ventilation. Syrian refugees of Jordanian camps were selected as a case study. The energy simulation of the steel shelter to that of a printed shelter showed that the latter can achieve higher ventilation rates, lower energy consumption, less electricity cost and better thermal insulation than steel shelters.
三维(3D)打印的避难所是一种创新的住房解决方案,为灾后需要庇护的人提供住所。中东地区由于内部矛盾,产生了大量的难民。早前就从成本和时间的角度对该技术进行了研究,并且比约旦的钢制避难所表现更好。这篇研究文章调查了约旦3D打印避难所在能源、燃料、冷却和通风方面的环境性能。选择约旦难民营的叙利亚难民作为案例研究。通过对钢质遮蔽物与印刷遮蔽物的能量模拟,结果表明,印刷遮蔽物比钢质遮蔽物具有更高的通风量、更低的能耗、更低的电费和更好的保温性。
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引用次数: 1
Developing a Smart Helmet Based on the Internet of Things to Manage Hearing Problems in the Construction Projects 开发一种基于物联网的智能头盔来管理建筑工程中的听力问题
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.11
Hamidreza Abbasianja, Vahid Pourali Shadhy, Amirhassan Beykian
Construction sites are renowned as the noisiest places that may cause hearing loss to workers. Lack of awareness about the level of harmful sounds causes more prevalence of hearing loss than other industries. This article intends to solve this issue by an innovative idea that is designing a wearable device called "smart helmet" (SH). The SH uses the concept of the Internet of things (IoT) for real-time monitoring workers' hearing health in construction sites. SH works online to send notifications in the presence of harmful sounds and offline due to storing data to analyse workers' health conditions. The results are divided into two sections: The first section presents the detail of the architecture, hardware and software of the SH and the second section offers a formula to convert noisy situations into allowable working time. By combining the proposed procedure and SH's prepared data, the allowable working time can be calculated for workers. The results of applying this device in practical projects show that steelworkers are more at risk than the others with exposure to 98 dB sounds.
建筑工地被认为是最嘈杂的地方,可能会导致工人的听力损失。与其他行业相比,由于缺乏对有害声音程度的认识,听力损失更为普遍。本文试图通过一个创新的想法来解决这一问题,即设计一种名为“智能头盔”(SH)的可穿戴设备。该设备利用物联网(IoT)的概念,实时监测建筑工地工人的听力健康状况。该公司在线上工作,在有有害声音时发出通知;离线工作,存储数据,分析工人的健康状况。结果分为两部分:第一部分详细介绍了SH的结构、硬件和软件,第二部分给出了将噪声情况转换为允许工作时间的公式。将提出的程序与SH的准备数据相结合,可以计算出工人的允许工作时间。在实际工程中应用该装置的结果表明,钢铁工人比其他工人暴露在98分贝的声音中风险更大。
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引用次数: 1
Challenges Hindering the Resourcing for Post-Disaster Housing Reconstruction in Gaza 阻碍加沙灾后住房重建资源的挑战
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.9
Nour Saleh, A. Enshassi, M. Sundermeier
Resourcing post-disaster housing reconstruction (PDHR) entails many drawbacks creating bottlenecks to reconstruction projects. Understanding these vulnerable issues is of utmost to identify the appropriate interventions to mitigate their effects. The devastating aggression in 2014 in Gaza Strip served as a typical example of resources hampers. Based on the quantitative approach, the research employed a self-administrated questionnaire survey to identify the most significant challenges hindering the resourcing for post-2014 aggression housing reconstruction. The questionnaire targeted 55 of the key people in the implementing agencies of post-2014 aggression housing reconstruction. The data collected was analysed using descriptive statistics, through frequency distribution and effect index (EI); and using inferential statistics through one sample Wilcoxon signed rank test. Findings indicated that the challenges related to political issues have the most significant effect on resourcing the PDHR. The main key challenges are: (1) Difficulties to obtain permits from the Israeli side to flow the reconstruction materials into the Gaza Strip, (2) Insufficient funds for reconstruction efforts and (3) Refusal of the international community to contact the local de facto government. This research fills the knowledge gap relating to Gaza and provides the basis for more research on resourcing problems. This research has also extended, updated and confirmed the current knowledge regarding challenges hindering the resourcing for PDHR. The results draw attention of the implementing agencies in Gaza to the factors that creating bottlenecks to resource the reconstruction projects in order to overcome them and to mitigate their negative effects.
灾后住房重建的资源分配存在诸多弊端,成为重建项目的瓶颈。了解这些易受影响的问题对于确定适当的干预措施以减轻其影响至关重要。2014年对加沙地带的毁灭性侵略是资源障碍的典型例子。基于定量方法,本研究采用自填式问卷调查,找出阻碍2014年后攻击性住房重建资源配置的最大挑战。问卷调查对象为55名2014年后攻击性住房改造实施机构的关键人员。收集的数据采用描述性统计,通过频率分布和效应指数(EI)进行分析;并通过单样本Wilcoxon符号秩检验进行推理统计。调查结果表明,与政治问题有关的挑战对PDHR的资源供应影响最大。主要的关键挑战是:(1)难以获得以色列方面的许可,以便将重建材料流入加沙地带;(2)重建工作资金不足;(3)国际社会拒绝与当地事实政府接触。这项研究填补了与加沙有关的知识空白,并为更多地研究资源问题提供了基础。这项研究还扩展、更新和确认了目前关于阻碍PDHR资源的挑战的知识。调查结果提请加沙各执行机构注意对重建项目的资源提供造成瓶颈的因素,以便克服这些瓶颈并减轻其不利影响。
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引用次数: 2
Enterprise Risk Management and Risk Culture in Construction Public Listed Companies 建筑业上市公司企业风险管理与风险文化
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.2
Ching Ching Wong, F. A. Mohd Rahim, S. Loo
Inadequate risk management and lack of risk culture can expose a company to unexpected risk events, which can negatively affect its performance. However, there are inconsistencies in suitable dimensions to measure the enterprise risk management (ERM) construct, as well as insufficient embedding strategies for risk culture. This study aims to identify the ERM practices and risk culture dimensions among the Malaysian construction public listed companies (PLCs). The roles of top management and chief risk officer/risk manager in influencing ERM and risk culture are also explored. A total of 46 annual reports and 10 interviews of industry practitioners were analysed using content analysis. The analysis of the annual reports found that risk policy and risk appetite/tolerance, monitoring key risk and accountability are the three dimensions of risk culture. In addition, based on the interviews, reward and recognition and internal relationships were identified as the two dimensions of risk. Top management and risk manager were found to be the primary drivers of ERM programme and risk culture in construction PLCs. The results of this study are used to formulate a survey instrument for the subsequent data collection to test the proposed theoretical model.
不充分的风险管理和缺乏风险文化会使公司暴露于意想不到的风险事件中,从而对其绩效产生负面影响。然而,在衡量企业风险管理(ERM)结构的合适维度上存在不一致,以及风险文化的嵌入策略不足。本研究旨在确定马来西亚建筑上市公司(plc)的ERM实践和风险文化维度。本文还探讨了高层管理人员和首席风险官/风险经理在影响ERM和风险文化方面的作用。采用内容分析法对46份年度报告和10份行业从业者访谈进行分析。对年度报告的分析发现,风险政策和风险偏好/容忍度、监控关键风险和问责制是风险文化的三个维度。此外,在访谈的基础上,确定了奖励与认可和内部关系是风险的两个维度。最高管理层和风险管理者被发现是建筑plc中ERM计划和风险文化的主要驱动因素。本研究的结果被用来制定一个调查工具,为后续的数据收集,以检验提出的理论模型。
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引用次数: 0
Technological Capabilities of Medium-Sized Contractors in Indonesia 印度尼西亚中型承包商的技术能力
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.1
B. Soemardi, B. Kusuma, K. Pribadi, S. Yuliar
The construction industry plays a significant role in national development and economic growth of Indonesia. Contractors are key actors in the construction industry and manage large amounts of construction resources and activities. While the demand for improving the nation's infrastructure is on the rise, the question remains whether the industry, especially contractors, will be able to fulfil this demand. This study investigates whether contractors include technological capabilities as an important part of their company strategies for addressing the dynamics of the construction industry. In particular, it aims to understand how contractors develop and improve their technological capabilities through a technological learning process (exploration, acquisition and internalisation). The investigation focuses on medium-sized contractors, who often play an important role as part of the supply chain for larger contractors. A model is developed to represent the dynamic interactions between key factors that influence the way contractors select and use technology to enhance their performance. Data were collected through a survey and were then used to map the contractors' development of technological capabilities. The study reveals that medium-sized contractors have yet to consider the development of technological capabilities as strategic. The results are expected to benefit the regulator and construction companies in Indonesia in their efforts to improve the performance of the country's construction industry.
建筑业在印尼的国家发展和经济增长中发挥着重要作用。承建商是建筑行业的关键角色,管理着大量的建筑资源和活动。虽然改善国家基础设施的需求正在上升,但问题仍然是,该行业,特别是承包商,是否能够满足这一需求。本研究调查了承包商是否将技术能力作为解决建筑行业动态的公司战略的重要组成部分。特别是,它旨在了解承包商如何通过技术学习过程(探索、获取和内部化)发展和提高他们的技术能力。调查的重点是中型承包商,他们通常在大型承包商的供应链中扮演重要角色。开发了一个模型来表示影响承包商选择和使用技术以提高其绩效的关键因素之间的动态相互作用。数据是通过调查收集的,然后用于绘制承包商技术能力发展的地图。该研究表明,中型承包商尚未将技术能力的发展视为战略。预计这一结果将有利于印尼的监管机构和建筑公司改善该国建筑业的表现。
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引用次数: 1
Development of Augmented Reality Application for Onsite Inspection of Expressway Structures Using Microsoft HoloLens 基于微软HoloLens的高速公路结构现场检测增强现实应用开发
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.5
Ang Kouch Keang, K. Panuwatwanich, P. Sancharoen, S. Sahachaisaree
This research introduces an augmented reality (AR)-based approach for the onsite inspection of expressway structures by developing an AR application, namely HoloSpector, deployed on the first generation of the Microsoft HoloLens headset. It was tested by a focus group of 10 postgraduate students, followed by three inspectors from the Expressway Authority of Thailand (EXAT), to investigate the practical applicability of the application. A questionnaire was employed as a research tool for measurement and assessment of the application and the HoloLens in this study. The results of this study indicated that the developed digital approach was satisfactory, easy to use and learn, useful, user-friendly and practical for EXAT expressway inspections; the users also intended to use it. Compared to the conventional approach, the current data communication and management could be significantly improved; this digital approach has the potential to help save resources, time and cost and increase work productivity.
本研究通过开发部署在第一代微软HoloLens头显上的增强现实应用程序HoloSpector,介绍了一种基于增强现实(AR)的高速公路结构现场检测方法。由10名研究生组成的焦点小组对其进行了测试,随后由泰国高速公路管理局(EXAT)的三名检查员进行了测试,以调查该应用程序的实际适用性。本研究采用问卷调查作为研究工具,对HoloLens的应用和应用进行测量和评估。研究结果表明,所开发的数字化方法对EXAT高速公路检测具有令人满意、易于使用和学习、实用、用户友好和实用的特点;用户也打算使用它。与传统的方法相比,目前的数据通信和管理可以显著提高;这种数字化方法有可能帮助节省资源、时间和成本,并提高工作效率。
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引用次数: 2
Dimensions and Correlates of Development in Construction 建筑发展的尺度和相关关系
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.3
André Ullal, Paolo Tombesi
In light of the limited impact research on construction in developing countries has had on theory and practice, this article discusses the meaning of development as it pertains to construction. The discussion distinguishes between studies addressing construction in developing countries, entailing focus on context and case-based approaches to research, and studies that focus on the process of construction industry development. Progress in research addressing the process of development has been hampered by a lack of data to support the examination of changes in construction industries over time and to compare industries in countries at different stages of economic development. To encourage more process-oriented research, a definition of development in construction is elaborated to include six important dimensions – i.e., important factors affecting construction industry development. Taking into account the lack of relevant statistics, correlates for these dimensions (i.e., statistical proxies) are reviewed. Finally, a manner of graphically presenting these dimensions and correlates is introduced. This graphic format enables visual comparison of conditions affecting construction in different countries. It also provides a frame for relating separate case studies to support comparisons and contributions to theory.
鉴于发展中国家建设研究在理论和实践上的影响有限,本文探讨了发展与建设相关的意义。讨论区分了针对发展中国家建筑业的研究和针对建筑业发展过程的研究,前者侧重于背景和基于案例的研究方法,后者侧重于建筑业发展过程。由于缺乏数据来支持审查建筑业随时间的变化和比较处于不同经济发展阶段的国家的工业,研究发展过程的进展受到阻碍。为了鼓励更多以过程为导向的研究,本文阐述了建筑业发展的定义,包括六个重要维度,即影响建筑业发展的重要因素。考虑到缺乏相关统计数据,审查了这些方面的相关关系(即统计代理)。最后,介绍了一种图形化表示这些维度和相关关系的方法。这种图形格式可以直观地比较影响不同国家建设的条件。它还提供了一个框架,将单独的案例研究联系起来,以支持比较和对理论的贡献。
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引用次数: 1
Impact of Safety Climate on Safety Behaviour in Construction Projects: Mediating Mechanism and Interacting Effect 安全气候对建设项目安全行为的影响:中介机制与交互效应
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.8
M. Zubair Rafique, S. Ahmed, M. Ismail
This study aimed to investigate the impact of safety climate on safety behaviour with the mediating role of safety attitude and mediating role of safety-specific transformational leadership. Data were collected from 294 respondents from different construction projects in Pakistan. The study employed an analytical descriptive approach as its research methodology. The results revealed that safety climate exhibits a significant positive correlation with safety behaviour in projects, as well as with safety attitude. Moreover, the findings demonstrated that safety attitude and safety-specific transformational leadership do not mediate the relationship between safety climate and safety behaviour in projects. In this study, the implications for the project managers and employees as well as future research directions are discussed.
本研究旨在探讨安全气候对安全行为的影响,其中安全态度的中介作用和安全转型领导的中介作用。数据收集自294名来自巴基斯坦不同建设项目的受访者。本研究采用分析描述性方法作为研究方法。结果表明,安全气候与项目安全行为、安全态度均呈显著正相关。此外,研究结果表明,安全态度和安全转型领导在项目安全气候和安全行为之间的关系中没有中介作用。在本研究中,讨论了对项目经理和员工的启示以及未来的研究方向。
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引用次数: 2
Framework to Improve the Attitudes of Construction Workers towards Safety Helmets 改善建筑工人对安全帽态度的框架
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.4
Anita Odame Adade-Boateng, F. Fugar, E. Adinyira
Construction workers in various studies across the globe have indicated that there is some discomfort with the use of safety helmets, and that some workers do not use safety helmets as required, resulting in a compromise to their health and safety protection. This study investigates the processes involved in the selection and procurement of safety helmets for construction workers and assesses these efforts by interrogating the discomforts experienced by users in spite of these selection considerations. The study focuses on safetyhelmets used by construction workers, as this is a common form of personal protective equipment (PPE) usually given out on construction sites to prevent head injuries, which are among the severest forms of occupational accidents in the industry. Primary data were obtained through a questionnaire survey conducted with construction firms operating in Ghana and semi-structured interviews with construction workers. The findings from the study indicate that in spite of the purported considerations by construction firms in the selection and procurement of PPE, construction workers continually experience several discomforts with the use of safety helmets. The study proposes a Behaviour-Based Safety Intervention Framework to guide the selection and procurement of user-friendly PPE that improves the user experience of safety helmets.
在全球各地进行的各种研究中,建筑工人指出,使用安全帽有些不舒服,有些工人没有按要求使用安全帽,从而损害了他们的健康和安全保护。本研究调查了建筑工人安全头盔的选择和采购过程,并通过询问用户在这些选择考虑因素时所经历的不适来评估这些努力。这项研究的重点是建筑工人使用的安全帽,因为这是一种常见的个人防护装备(PPE),通常在建筑工地发放,以防止头部受伤,这是该行业最严重的职业事故之一。主要数据是通过对在加纳经营的建筑公司进行问卷调查和对建筑工人进行半结构化访谈获得的。这项研究的结果表明,尽管建筑公司在选择和采购个人防护装备时据称考虑了这些因素,但建筑工人在使用安全帽时仍经常感到一些不适。该研究提出了一个基于行为的安全干预框架,以指导用户友好的个人防护装备的选择和采购,从而改善安全帽的用户体验。
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引用次数: 1
Driving the Fourth Industrial Revolution Initiative Through University and Industry Collaborations 通过大学和行业合作推动第四次工业革命倡议
IF 0.9 Q4 CONSTRUCTION & BUILDING TECHNOLOGY Pub Date : 2021-12-08 DOI: 10.21315/jcdc2021.26.2.10
Aliu John, Aigbavboa Clinton, W. Thwala
As the world basks in the euphoria of the fourth Industrial Revolution (4IR), Africa is gearing up for this innovative age, with South Africa as one of its leading voices. One of the ways of leveraging on the opportunities presented by the 4IR era is to foster collaborations between universities and the construction industry (university-industry collaboration, UIC). This research article aims to determine the positive impacts of UIC on the employability of built environment graduates. A qualitative Delphi approach was adopted to validate 16 factors, which were identified from literature. A total of 14 experts completed a two-stage iterative Delphi study process and reached consensus on all 16 factors identified. This study found that networking activities with industry professionals, student's exposure to innovative ideas and 4IR training programme opportunities are some of the ways through which UIC can improve 4IR knowledge and employability skills among students. From the Delphi survey results, educational institutions have been placed under significant pressures to intensify collaborations with the industry by creating avenues for students to experience industrial training with present-day 4IR-driven sectors such as the construction industry, which has begun the adoption of 4IR elements into its processes to improve efficiency and productivity. Although the issue of UIC has been widely discussed in the body of knowledge, very few have incorporated the 4IR dimension as a gap, which this study aims to fill.
当世界沉浸在第四次工业革命(4IR)的喜悦中时,非洲正在为这个创新时代做准备,南非是其中的主要声音之一。利用第四次工业革命带来的机遇的方法之一是促进大学与建筑行业之间的合作(校企合作,UIC)。本研究的目的是要确定城市集成对建筑环境专业毕业生就业能力的正面影响。采用定性德尔菲法对文献中确定的16个因素进行验证。共有14位专家完成了两阶段的迭代德尔菲研究过程,并对所确定的所有16个因素达成了共识。这项研究发现,通过与行业专业人士的交流活动、学生接触创新理念和第四次工业革命培训计划的机会,UIC可以提高学生的第四次工业革命知识和就业技能。从德尔福的调查结果来看,教育机构面临着巨大的压力,需要加强与行业的合作,为学生创造途径,让他们体验当前由4IR驱动的行业(如建筑业)的工业培训,建筑业已经开始将4IR元素纳入其流程,以提高效率和生产力。虽然UIC问题在知识体系中被广泛讨论,但很少有人将4IR维度作为空白,而本研究旨在填补这一空白。
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引用次数: 1
期刊
Journal of Construction in Developing Countries
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