Yahya Ibraheem, Poorang A.E. Piroozfar, Eric R.P. Farr and Neil Ravenscroft
The purpose of this paper is to develop a methodology to test the robustness of energy performance of highly to fully glazed office buildings in hot and arid climates using the…
Abstract
Purpose
The purpose of this paper is to develop a methodology to test the robustness of energy performance of highly to fully glazed office buildings in hot and arid climates using the net energy figures.
Design/methodology/approach
The paper uses a methodology to develop a base-case model for building energy simulation (BES) of highly to fully glazed office buildings followed by sensitivity analysis (linear regression model) to test the robustness of the results.
Findings
Net energy is best achieved on south, followed by southeast, and southwest façadesof the bulding; the increase in d/l ratio has a diverse effect, while there is a significant influence of glazing systems on the resultant net energy figures.
Research limitations/implications
The lack of experimental data for Integrated Façade System (IFS) with its various applications in the existing body of knowledge forms the main limitation of this research.
Practical implications
Findings can be of practical use to practitioners and academics to assist them as a decision tool when working on the energy performance of IFS.
Social implications
The research contributes to energy consumption reduction in office building stock at peak times, lowering the consequent energy shortage and blackouts for non-office buildings with clear positive social impacts.
Originality/value
Adopting a systemic approach in BES studies will help further the understanding on the impact of some phenomena and justify how the contributory parameters would behave when combined effects are under investigations.
Details
Keywords
Ruoyu Jin, Tong Yang, Poorang Piroozfar, Byung-Gyoo Kang, Dariusz Wanatowski, Craig Matthew Hancock and Llewellyn Tang
The purpose of this paper is to present a pedagogical practice in the project-based assessment of architectural, engineering and construction (AEC) students’ interdisciplinary…
Abstract
Purpose
The purpose of this paper is to present a pedagogical practice in the project-based assessment of architectural, engineering and construction (AEC) students’ interdisciplinary building design work adopting BIM. This pedagogical practice emphasizes the impacts of BIM, as the digital collaboration platform, on the cross-disciplinary teamwork design through information sharing. This study also focuses on collecting students’ perceptions of building information modeling (BIM) effects in integrated project design. Challenges in BIM adoption from AEC students’ perspective were identified and discussed, and could spark further research needs.
Design/methodology/approach
Based on a thorough review of previous pedagogical practices of applying BIM in multiple AEC disciplines, this study adopted a case study of the Solar Decathlon (SD) residential building design as the group project for AEC students to deliver the design work and construction planning. In total 13 different teams within the University of Nottingham Ningbo China, each group consisting of final year undergraduate students with backgrounds in architecture, civil engineering, and architectural environmental engineering, worked to deliver the detailed design of the solar-powered residential house meeting pre-specified project objectives in terms of architectural esthetics, structural integrity, energy efficiency, prefabrication construction techniques and other issues such as budget and scheduling. Each team presented the cross-disciplinary design plan with cost estimate and construction scheduling together within group reports. This pedagogical study collected students’ reflective thinking on how BIM affected their design work, and compared their feedback on BIM to that from AEC industry professionals in previous studies.
Findings
The case study of the SD building project showed the capacity of BIM in enabling interdisciplinary collaboration through information exchange and in enhancing communication across different AEC fields. More sustainable design options were considered in the early architectural design stages through the cross-disciplinary cooperation between architecture and building services engineering. BIM motivated AEC student teams to have a more comprehensive design and construction plan by considering multiple criteria including energy efficiency, budget, and construction activities. Students’ reflections indicated both positive effects of BIM (e.g. facilitating information sharing) as well as challenges for further BIM implementation, for example, such as some architecture students’ resistance to BIM, and the lack of existing family types in the BIM library, etc.
Research limitations/implications
Some limitations of the current BIM pedagogy were identified through the student group work. For example, students revealed the problem of interoperability between BIM (i.e. Autodesk Revit) and building energy simulation tools. To further integrate the university education and AEC industry practice, future BIM pedagogical work could recruit professionals and project stakeholders in the adopted case studies, for the purpose of providing professional advice on improving the constructability of the BIM-based design from student work.
Practical implications
To further integrate the university education and AEC industry practice, future BIM pedagogical work could recruit professionals and project stakeholders in the adopted case study, for the purpose of providing professional advice in improving the constructability of the BIM-based design from student work.
Originality/value
This work provides insights into the information technology applied in the AEC interdisciplinary pedagogy. Students gained the experience of a project-based collaboration and were equipped with BIM capabilities for future employment within the AEC job market. The integrated design approach was embedded throughout the team project process. Overall, this BIM pedagogical practice emphasized the link between academic activities and real-world industrial practice. The pedagogical experience gained in this BIM course could be expanded to future BIM education and research in other themes such as interoperability of building information exchange among different digital tools.
Details
Keywords
Ruoyu Jin, Patrick Xiaowei Zou, Bo Li, Poorang Piroozfar and Noel Painting
University students are the future driving forces in and leaders of the architectural, engineering and construction (AEC) industry advancement. Although BIM pedagogical studies…
Abstract
Purpose
University students are the future driving forces in and leaders of the architectural, engineering and construction (AEC) industry advancement. Although BIM pedagogical studies have been performed in different institutions, there has not been sufficient research providing a global perspective of BIM education and students’ perceptions toward BIM practice and application following their learning progress. The purpose of this paper is to adopt student samples from Swinburne University of Technology (SUT, Australia), Wenzhou University (WZU, China) and University of Brighton (UK) as three case studies to investigate the BIM practice and application-related perceptions and motivations.
Design/methodology/approach
Based on the thorough understanding of the BIM pedagogical delivery including teaching contents and assessment methods among the three institutions, a questionnaire survey approach was adopted to collect AEC students’ perceptions of BIM. Within each selected case, statistical analysis was conducted to investigate both the overall sample and subgroup differences regarding students’ opinions on BIM’s functions (e.g. as a 3D visualization tool) and BIM usefulness in various industry professions, their motivation in BIM-related jobs and their perceptions of challenges encountered in BIM practice and application. Multiple factors influencing BIM learners’ perceptions were discussed, such as pedagogical assessment approach, and individual factors (e.g. disciplines).
Findings
The results showed that students were able to discern the latest industry practices and critical thinking in BIM movements. For example, SUT students perceived more challenges from the government legislation or incentive policies, which was consistent with Australia’s BIM policy movement. WZU students tended to have less positive views on BIM usefulness. The results also indicated fewer differences regarding perceived challenges among students from these three institutions.
Originality/value
This study contributed to the body of knowledge in managerial BIM by focusing on learners’ perceptions from the perspective of students’ understanding, motivation and individual views of BIM, which were insightful to both BIM educators and employers. By initiating the framework of BIM learning process and its influence factors, the current study serves as a point of reference to continue the future work in strengthening the connection between institutional BIM education and industry practical needs worldwide.
Details
Keywords
Yanhu Han, Xiyu Yan and Poorang Piroozfar
As a strand in industrialization movement in architecture, engineering and construction (AEC) industry, prefabricated construction (PC) has gained widespread popularity due to…
Abstract
Purpose
As a strand in industrialization movement in architecture, engineering and construction (AEC) industry, prefabricated construction (PC) has gained widespread popularity due to high efficiency, energy saving, low environmental impacts, safety and other advantages of PC. Well-managed supply chain can further leverage the advantages of PC. However, there is a lack of more systematically overview of the prefabricated construction supply chain (PCSC). This paper aims to comb the current status and look into the future direction of PCSC by reviewing the existing research.
Design/methodology/approach
In total, 131 articles related to prefabricated construction supply chain management (PCSCM) from 2000 to 2022 have been collated to (1) conduct a bibliometric analysis by using VOSviewer, including the literature sources, keywords co-occurrence, co-authorships, authorship citation and country active in the field of PCSCM; (2) classify and summarize the status of research in PCSCM through qualitative discussion and (3) point out the future research directions.
Findings
In total, 131 articles are carried out for bibliometric analysis and in-depth qualitative discussion, the visualization maps and the main research themes in the field of PCSCM are obtained. The results show that supply chain intelligentization and informatization are hot topics. Finally, future research directions that should be paid attention to in the field of PCSCM are pointed out.
Practical implications
This study can help project managers understand the current status and problems of PCSC operations and provide a basis for future management decisions.
Originality/value
Compared with previous studies, this study adds the dimension of “article authorship” to the quantitative analysis and discusses the research themes in the field of PCSCM in a comprehensive manner. In addition, this paper deeply discusses the main research topics from both the specific contents and research methods adopted.
Details
Keywords
Michela Menconi, Noel Painting and Poorang Piroozfar
The inclusion of heritage dwellings in the UK decarbonization policies can contribute to cut operational carbon emissions from the building stock; this needs to be made a priority…
Abstract
Purpose
The inclusion of heritage dwellings in the UK decarbonization policies can contribute to cut operational carbon emissions from the building stock; this needs to be made a priority if net zero carbon targets are to be achieved. However, the energy and carbon savings potential of suitable retrofit interventions on this part of the stock is extremely variable and strictly intertwined with the range of baseline conditions of such dwellings. This study aims to propose a framework for interventions in traditional listed dwellings (TLDs) to improve their energy performance utilizing dynamic energy simulation (DES) of selected case studies (CSs) in the city of Brighton and Hove (South-East England).
Design/methodology/approach
To achieve this aim, the study established a baseline scenario which provides a basis for the assessment of energy performance and thermo-hygrometric behaviour pre- and post-interventions and allows for comparison between different CSs under comparable conditions.
Findings
Presenting a brief overview of the methodology adopted in this study, the paper describes the approach devised to generate such baseline scenario. The paper then compares the results obtained from simulation of normalized and baseline models with the status-quo energy consumption of the dwellings investigated (based on meter readings).
Originality/value
This analysis finally allows to highlight some key physical determinants of the baseline HEC which, in the following stage of research, proved to have a considerable effect also on the amount of energy and carbon savings achievable post retrofit interventions.
Details
Keywords
Francesco Pomponi and Poorang A. E. Piroozfar
– The purpose of this paper is to establish how UK offices and double skin façade (DSF) technologies can be best matched for refurbishment purposes.
Abstract
Purpose
The purpose of this paper is to establish how UK offices and double skin façade (DSF) technologies can be best matched for refurbishment purposes.
Design/methodology/approach
This research uses a mixed methodology including primary and secondary data collection, analysis and interpolation through document analysis, comprehensive critical literature review, and case study approach.
Findings
In total, 22 benchmarks have been developed to represent 75 per cent of the existing office stock in the UK. Through a comparison with 36 case studies of European buildings refurbished with DSFs, two benchmarks showed to be most suitable for a DSF refurbishment and most appropriate configurations for a successful DSF refurbishment have been identified. Findings have been also checked against a large sample of DSF buildings in the UK.
Research limitations/implications
The benchmarks delivered in this study can be developed further into parametric models, where variations can be obtained by changing the parameters provided. A follow-up study can be designed to help define the exact share of existing stock represented by each benchmark and to foster research where a more typological or statistical approach might be intended.
Practical implications
Findings from this research can be of practical use to academics and practitioners alike involved in research related to office refurbishments, DSFs, and the UK existing office stock. The design for this research can also be adapted to similar studies on its own or further developed to suit different contexts.
Social implications
Improvements to existing buildings can preserve established communities, with a clear social advantage.
Originality/value
This paper represents the first attempt to systemically shed light on how existing UK offices and DSF technologies can be best matched in refurbishments. The benchmarks developed, the DSF case studies, and guidelines for suitable DSF technologies in UK office refurbishments represent the original contribution of this research.
Details
Keywords
Poorang Piroozfar, Kemi Adeyeye, Micah Rosenkind and Graham Winstanley
The purpose of this paper is to report on partial findings of a research project on post‐occupancy design in school projects. It provides a brief review of key factors, and major…
Abstract
Purpose
The purpose of this paper is to report on partial findings of a research project on post‐occupancy design in school projects. It provides a brief review of key factors, and major players in post‐occupancy processes.
Design/methodology/approach
Subsequent to literature review for the research, the primary data was obtained from a steering group (stakeholder forum) comprising of a sample of primary and secondary school representatives, local authorities and building professionals. Following the data collection, visits were arranged to the selected schools, and local councils and semi‐structured interviews with school and council authorities were carried out. At the same time, research meeting and directed studies were held to best explore the applications for devising the toolkit. Simulated and real cases for making decisions in post‐occupancy design were selected to devise a model‐base to test out the applicability of the devised prototype of the toolkit.
Findings
This study provided clarification on the post‐occupancy performance and practicable expectations of major parties in school projects with special reference to the development stage of the proposed toolkit. The qualitative and quantitative data collected, confirmed that a real‐time updateable support system for decisions is required for making the most reasonable decisions where multi‐criteria/multi‐agent decision is inevitable. The principles of co‐creation of knowledge and value, as suggested in manufacture and service industries, were investigated to inform the underlying design platform for the toolkit. The decision support systems for multi‐criteria decision making processes were also established so that the toolkit can take a full account of the achievements in this area.
Originality/value
The paper highlights the complexities involved in the post‐occupancy decision processes in school projects. Also, the pressing need for a system to assist in streamlining the information flow (particularly upwards, from the schools to the LA) and management of knowledge to facilitate design decisions is identified. The decision processes need to be more integrated, collaborative and inclusive. It also acknowledges that decision making in post‐occupancy processes, is an evolving process. The main contribution of this paper however, remains to be how the collaborative processes were streamlined for all the stakeholders to work together and co‐create knowledge and value to devise a platform.
Details
Keywords
Kemi Adeyeye, Poorang Piroozfar, Micah Rosenkind, Graham Winstanley and Ian Pegg
This paper aims to review the impact of design and specification decisions for major works during post‐occupancy processes; the routine maintenance and management of school…
Abstract
Purpose
This paper aims to review the impact of design and specification decisions for major works during post‐occupancy processes; the routine maintenance and management of school premises. It also seeks to explore the relationship between the main stakeholders and how this impacts decision‐making and the post‐occupancy operation of school buildings.
Design/methodology/approach
In addition to a literature review, qualitative data were also obtained through a focus group; a steering group. The steering group consisted of stakeholders tasked with delivering and managing school premises in the Sussex County.
Findings
The findings contribute to understanding the impact of design decisions on post‐occupancy processes in schools. A basic model is also presented as a guide for requirements and decision mapping in post‐occupancy design decision processes in schools.
Research limitations/implications
The study was conducted with the participation of a representative sample of stakeholders. There may be the need to investigate the issues further in a localised context before detailed solutions are proposed.
Practical implications
The paper reports findings based on the needs, requirements, and preferences of the stakeholders as well as the opportunities and constraints to improving the quality of design processes which in turn will improve post occupancy processes.
Originality/value
The paper highlights the complexity of design decision‐making in schools, presents the viewpoint of stakeholders, and proposes a basic model to ensure performance for post‐occupancy processes to inform the next stage of the research.
Details
Keywords
Modish Kumar and Santosh Kumari
This paper aims to evaluate the available research to identify the factors contributing to the delays in road construction projects. The primary goals of this study are to…
Abstract
Purpose
This paper aims to evaluate the available research to identify the factors contributing to the delays in road construction projects. The primary goals of this study are to determine the critical elements that cause delays in road projects, and to investigate the appropriate corrective actions suggested to lessen the delays in road projects. The study also assesses the theoretical background, methodology, limitations and future research prospects suggested in relevant research works related to causes for delays in road construction.
Design/methodology/approach
This study adopted systematic literature review in three steps: collecting relevant literature, descriptive analysis and content analysis. This study used keyword analysis and thematic content analysis on some relevant selected studies. NVivo 12 was used for thematic content analysis utilising description-focused coding, the text was thematically analysed, three other software: MS Excel, VOSviewer and Mendeley were also used for analysis in this study.
Findings
The findings revealed that road projects around the world experienced delays and the reasons for delays are many. After the analysis of literature, number of factors causing delays in road projects were identified, which were then divided into seven broad groups using thematic content analysis. The investigation shows that variations in design and inefficient management of project by contractor including inadequate planning and scheduling are the top two factors of delay. The most frequent suggested corrective measure to reduce delay was employing technically competent employees and contractor should conduct thorough survey on his part, rather than just accepting the survey report at face value.
Research limitations/implications
This review paper is addressing the issues related to delays in road construction projects and suggests remedial measure to reduce them. The paper will be useful for researchers, industry professionals, academician and policy makers concerned with the road construction projects. The study conducted the review of selected relevant articles related to causes of delay in road construction projects for qualitative analysis. The research articles using quantitative methods and studies conducted on other types of infrastructure projects were not included; however, findings from this study may be applicable to other construction projects as well.
Practical implications
The findings of this paper are useful in the fields of economy, industry, academia and public policies. The paper thoroughly examined the factors causing delays in highway projects, offering insights for practitioners to identify best practices and mitigation strategies. These findings can guide investment and policy decisions for highway infrastructure projects, promoting a holistic approach to development. Additionally, this paper can help enhance research methods in studies about delays in road infrastructure projects.
Originality/value
The literature review in the paper used a qualitative method. The causes of road project delays, remedial action, context, methodology and theoretical foundation were all examined in this paper.