Pub Date : 2023-10-23DOI: 10.36680/j.itcon.2023.035
Hirusheekesan Selvanesan, Niranji Satanarachchi
Construction industry nowadays is facing several key issues as the likes of cost and time overruns and unstable business environment which lead to suppressed profitability, quality, and stakeholder satisfaction. Studies have suggested, an improved Supply Chain Management (SCM) towards Sustainable Supply Chain (SSCM) could help in this regard, however there are barriers observed to its implementation in the construction industry. Building Information Modelling (BIM) too is considered a positive disrupter in the construction industry due to the potential in its applications, and one of such potential is improving the SCM. However, similar to SCM, adoption of BIM faces several barriers. Preliminary review suggests that some of its barriers could be resolved by integrating with Blockchain, another disruptor stemming from Industry 4.0. Hence, this paper attempts to assess how the synergy of BIM and blockchain would improve the SCM of the construction industry. For that purpose, through a systematic literature review, the paper structures the barriers of SCM, and barriers and benefits of BIM and blockchain in construction industry across the dimensions of Socio-technical, Industrial, Organizational, Financial, Legal and Institutional, and Sustainability, and conceptually maps the barriers and benefits to identify their collective impact on SCM. From this study it was found that with the help of Blockchain integration, there are a number of potential synergies that may solve critical inherent issues in both BIM and SCM, such as reluctance of information sharing and trust, sustainability concerns and safety, leading to positive cumulative impact on SCM. However, it was also recognized that there can be negative as well as neutral cumulative impacts on areas such as cost, and lack of personnel, knowledge and institutional support that can lead to an opposite impact.
{"title":"Potential for synergetic integration of Building Information Modelling, Blockchain and Supply Chain Management in construction industry","authors":"Hirusheekesan Selvanesan, Niranji Satanarachchi","doi":"10.36680/j.itcon.2023.035","DOIUrl":"https://doi.org/10.36680/j.itcon.2023.035","url":null,"abstract":"Construction industry nowadays is facing several key issues as the likes of cost and time overruns and unstable business environment which lead to suppressed profitability, quality, and stakeholder satisfaction. Studies have suggested, an improved Supply Chain Management (SCM) towards Sustainable Supply Chain (SSCM) could help in this regard, however there are barriers observed to its implementation in the construction industry. Building Information Modelling (BIM) too is considered a positive disrupter in the construction industry due to the potential in its applications, and one of such potential is improving the SCM. However, similar to SCM, adoption of BIM faces several barriers. Preliminary review suggests that some of its barriers could be resolved by integrating with Blockchain, another disruptor stemming from Industry 4.0. Hence, this paper attempts to assess how the synergy of BIM and blockchain would improve the SCM of the construction industry. For that purpose, through a systematic literature review, the paper structures the barriers of SCM, and barriers and benefits of BIM and blockchain in construction industry across the dimensions of Socio-technical, Industrial, Organizational, Financial, Legal and Institutional, and Sustainability, and conceptually maps the barriers and benefits to identify their collective impact on SCM. From this study it was found that with the help of Blockchain integration, there are a number of potential synergies that may solve critical inherent issues in both BIM and SCM, such as reluctance of information sharing and trust, sustainability concerns and safety, leading to positive cumulative impact on SCM. However, it was also recognized that there can be negative as well as neutral cumulative impacts on areas such as cost, and lack of personnel, knowledge and institutional support that can lead to an opposite impact.","PeriodicalId":51624,"journal":{"name":"Journal of Information Technology in Construction","volume":"12 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135406042","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}
Pub Date : 2023-10-07DOI: 10.36680/j.itcon.2023.034
Andrzej Szymon Borkowski
There is no consensus among BIM practitioners and theorists as to whether BIM is an evolution from CAD systems or a total revolution in construction. In the history of BIM, there have been a number of important, epoch-making events that have changed the direction of BIM. From the concept of BIM, to the technology used in construction, to the methodology, to the process, to the holistic idea of BIM, one can see the evolution of user approaches to its use. BIM has two dimensions: an information system and a philosophy. Thus, BIM is both a tool and a philosophy that brings about a revolution. Several decades of BIM development prompts reflection and the delineation of perhaps some stages of maturation. This paper presents a theory of cognition (epistemology), essential for understanding the history of BIM. The genesis of the separation of BIM from CAD makes it clear that specific factors influenced further developments. Thus, the aim of the study was to periodise BIM in view of various factors that may be relevant to researchers interested in BIM and companies using or implementing BIM. The literature survey maintained inclusivity to reflect both positive and critical aspects of BIM. The periodisation of the history of BIM was done due to 3 factors: idea, approach and organisational culture. The development of the BIM idea established the direction in which systems and software development was heading, the user approach forced interoperability and the organisational culture emphasised increasing efficiency. Working according to the openBIM approach or within an IPD framework is probably not the end of the anticipated level of BIM maturity. The division into periods will probably be the subject of much discussion, but will perhaps set the directions for the future.
{"title":"Evolution of BIM: epistemology, genesis and division into periods","authors":"Andrzej Szymon Borkowski","doi":"10.36680/j.itcon.2023.034","DOIUrl":"https://doi.org/10.36680/j.itcon.2023.034","url":null,"abstract":"There is no consensus among BIM practitioners and theorists as to whether BIM is an evolution from CAD systems or a total revolution in construction. In the history of BIM, there have been a number of important, epoch-making events that have changed the direction of BIM. From the concept of BIM, to the technology used in construction, to the methodology, to the process, to the holistic idea of BIM, one can see the evolution of user approaches to its use. BIM has two dimensions: an information system and a philosophy. Thus, BIM is both a tool and a philosophy that brings about a revolution. Several decades of BIM development prompts reflection and the delineation of perhaps some stages of maturation. This paper presents a theory of cognition (epistemology), essential for understanding the history of BIM. The genesis of the separation of BIM from CAD makes it clear that specific factors influenced further developments. Thus, the aim of the study was to periodise BIM in view of various factors that may be relevant to researchers interested in BIM and companies using or implementing BIM. The literature survey maintained inclusivity to reflect both positive and critical aspects of BIM. The periodisation of the history of BIM was done due to 3 factors: idea, approach and organisational culture. The development of the BIM idea established the direction in which systems and software development was heading, the user approach forced interoperability and the organisational culture emphasised increasing efficiency. Working according to the openBIM approach or within an IPD framework is probably not the end of the anticipated level of BIM maturity. The division into periods will probably be the subject of much discussion, but will perhaps set the directions for the future.","PeriodicalId":51624,"journal":{"name":"Journal of Information Technology in Construction","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135251961","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}
Pub Date : 2023-09-22DOI: 10.36680/j.itcon.2023.032
Marcel Nagatoishi, Renate Fruchter
Multi-planetary life is one of humanity's audacious dreams. A key challenge towards achieving such a space mission is the design and construction of space habitats, for instance, on Mars. This paper presents a virtual space construction decision framework (SCDF) prototype developed and tested to address the question: "How can space construction project partners make informed decisions and leverage new construction methods and cutting-edge technologies that are developed and transform the AEC terrestrial industry?" We consider six practical and theoretical points of departure reflecting knowledge and technology and their application towards developing SCDF: General Contractor Workflow; BIM; Generative Scheduling and Construction Schedule Optimization; Construction Robotics; 3D Printing; Virtual Reality (VR) and Visualization. SCDF development applied virtual design and construction (VDC) to model - simulate - optimize - visualize - validate a space construction project by exploring the solution space in the context of extra-terrestrial construction environments from concept design to construction completion in the virtual environment before any mission is launched. Results confirm that insights from terrestrial construction apply to extra-terrestrial construction and vice versa. These insights contribute to the six points of departure at three levels: 1. The SCDF; 2. Extensions to existing technology platforms; 3. New approaches and methods.
{"title":"Construction management in space: explore solution space of optimal schedule and cost estimate","authors":"Marcel Nagatoishi, Renate Fruchter","doi":"10.36680/j.itcon.2023.032","DOIUrl":"https://doi.org/10.36680/j.itcon.2023.032","url":null,"abstract":"Multi-planetary life is one of humanity's audacious dreams. A key challenge towards achieving such a space mission is the design and construction of space habitats, for instance, on Mars. This paper presents a virtual space construction decision framework (SCDF) prototype developed and tested to address the question: \"How can space construction project partners make informed decisions and leverage new construction methods and cutting-edge technologies that are developed and transform the AEC terrestrial industry?\" We consider six practical and theoretical points of departure reflecting knowledge and technology and their application towards developing SCDF: General Contractor Workflow; BIM; Generative Scheduling and Construction Schedule Optimization; Construction Robotics; 3D Printing; Virtual Reality (VR) and Visualization. SCDF development applied virtual design and construction (VDC) to model - simulate - optimize - visualize - validate a space construction project by exploring the solution space in the context of extra-terrestrial construction environments from concept design to construction completion in the virtual environment before any mission is launched. Results confirm that insights from terrestrial construction apply to extra-terrestrial construction and vice versa. These insights contribute to the six points of departure at three levels: 1. The SCDF; 2. Extensions to existing technology platforms; 3. New approaches and methods.","PeriodicalId":51624,"journal":{"name":"Journal of Information Technology in Construction","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136011278","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}
Pub Date : 2023-09-22DOI: 10.36680/j.itcon.2023.030
Kantheepan Yogeeswaran, Qian Chen, Borja García de Soto
Prefabricated construction allows for efficient resource usage while creating higher-quality products that can be assembled on-site within a short time. While this translates to significant benefits for the overall construction, challenges arise from an increased demand for trained prefabrication assembly workers. As prefabrication calls for skills differing from traditional construction, the local labor force can be negatively affected to impede the successful uptake of prefabricated construction. Upskilling the local workforce to take on prefabrication assembly and potential disassembly can solve this problem. This is more relevant to remote construction projects as they stand to gain more from prefabricated construction. This study presents two workflows for creating Augmented Reality (AR) solutions. The AR solutions are aimed to help workers transition between traditional and prefabrication assembly in a panelized construction project. They are: (1) using QR codes to identify a panel’s intended location and construction sequence and (2) using predefined markers to show required equipment and on-site assembly procedures. The solutions are delivered through smartphones, which are readily available and provide a cost-effective medium. Furthermore, developed workflows present an opportunity to implement Design for Disassembly (DfD) concepts in a project. The proposed workflows show the potential to substantially help communicate to the workers the instructions on both the panel assembly and disassembly activities and upskill the local workforce to support the transition to prefabrication assembly in construction projects.
{"title":"Utilizing augmented reality for the assembly and disassembly of panelized construction","authors":"Kantheepan Yogeeswaran, Qian Chen, Borja García de Soto","doi":"10.36680/j.itcon.2023.030","DOIUrl":"https://doi.org/10.36680/j.itcon.2023.030","url":null,"abstract":"Prefabricated construction allows for efficient resource usage while creating higher-quality products that can be assembled on-site within a short time. While this translates to significant benefits for the overall construction, challenges arise from an increased demand for trained prefabrication assembly workers. As prefabrication calls for skills differing from traditional construction, the local labor force can be negatively affected to impede the successful uptake of prefabricated construction. Upskilling the local workforce to take on prefabrication assembly and potential disassembly can solve this problem. This is more relevant to remote construction projects as they stand to gain more from prefabricated construction. This study presents two workflows for creating Augmented Reality (AR) solutions. The AR solutions are aimed to help workers transition between traditional and prefabrication assembly in a panelized construction project. They are: (1) using QR codes to identify a panel’s intended location and construction sequence and (2) using predefined markers to show required equipment and on-site assembly procedures. The solutions are delivered through smartphones, which are readily available and provide a cost-effective medium. Furthermore, developed workflows present an opportunity to implement Design for Disassembly (DfD) concepts in a project. The proposed workflows show the potential to substantially help communicate to the workers the instructions on both the panel assembly and disassembly activities and upskill the local workforce to support the transition to prefabrication assembly in construction projects.","PeriodicalId":51624,"journal":{"name":"Journal of Information Technology in Construction","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060930","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}
Pub Date : 2023-09-22DOI: 10.36680/j.itcon.2023.026
ary This special issue of Information Technology in Construction is dedicated to exploring the future of construction in the context of digital transformation. The inspiration for this edition stemmed from the 22nd International Conference on Construction Applications of Virtual Reality (CONVR 2022), which was held at Chung-Ang University in Seoul, South Korea. The overarching theme for CONVR 2022 was “The future of construction in the context of digital transformation and decarbonization”. With over 200 participants attending in person and many more joining online, the conference served as a platform for researchers to present innovative work on VR/AR, BIM, digital twins, IoT, artificial intelligence, construction automation, circular economy, and sustainability in the construction industry. The wealth of knowledge shared during the conference prompted us to invite the authors of outstanding papers to expand their contributions for publication in this special issue. The editors hope that this collection of articles will offer a glimpse into the current state of research on digitalization in the construction industry, and that it will serve as a valuable reference source for further research.
{"title":"SPECIAL ISSUE EDITORIAL: The future of construction in the context of digital transformation (CONVR 2022)","authors":"","doi":"10.36680/j.itcon.2023.026","DOIUrl":"https://doi.org/10.36680/j.itcon.2023.026","url":null,"abstract":"ary This special issue of Information Technology in Construction is dedicated to exploring the future of construction in the context of digital transformation. The inspiration for this edition stemmed from the 22nd International Conference on Construction Applications of Virtual Reality (CONVR 2022), which was held at Chung-Ang University in Seoul, South Korea. The overarching theme for CONVR 2022 was “The future of construction in the context of digital transformation and decarbonization”. With over 200 participants attending in person and many more joining online, the conference served as a platform for researchers to present innovative work on VR/AR, BIM, digital twins, IoT, artificial intelligence, construction automation, circular economy, and sustainability in the construction industry. The wealth of knowledge shared during the conference prompted us to invite the authors of outstanding papers to expand their contributions for publication in this special issue. The editors hope that this collection of articles will offer a glimpse into the current state of research on digitalization in the construction industry, and that it will serve as a valuable reference source for further research.","PeriodicalId":51624,"journal":{"name":"Journal of Information Technology in Construction","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136061245","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}
Pub Date : 2023-09-22DOI: 10.36680/j.itcon.2023.029
Simge Girgin, Renate Fruchter, Martin Fischer
Despite advances in 3D clash detection during preconstruction, mechanical, electrical, and plumbing (MEP) installations are still prone to the detection of unforeseen clashes during construction. These issues must be resolved as quickly as possible to prevent significant schedule delays. Through interviews and field observations, this case study investigates the impact of mixed reality (MR) on the inspection and resolution of field-detected MEP issues from product, organization, and process (POP) perspectives. For the product impact, preliminary findings from the field interviews show that MR-based inspection would increase the quality of MEP installation by identifying errors easily and resolving them faster. For the organizational impact, we modeled and compared the current (as-is) and MR-integrated (to-be) MEP field issue resolution workflows using Business Process Model and Notation (BPMN) and determined that MR-based inspections can decrease the coordination overhead between MEP engineers and superintendents by up to 75%. This translates into at least a 50% faster resolution of an MEP issue for the process impact. The paper contributes to the practice of MR-based field inspection by providing a method to quantify potential time savings by integrating MR into the MEP field issue resolution workflow and field interview questions for MEP engineers and superintendents to further examine the use of MR during inspection activities in construction projects. Our observations of MEP superintendents and engineers during field inspection showed that not all building information visualized in MR is useful for their inspection tasks. We developed a classification for building information usefulness to help construction project managers who are deploying MR determine useful information for the task at hand that needs to be integrated into the 3D MR model for MR-based inspections.
{"title":"A case study towards assessing the impact of mixed reality-based inspection and resolution of MEP issues during construction","authors":"Simge Girgin, Renate Fruchter, Martin Fischer","doi":"10.36680/j.itcon.2023.029","DOIUrl":"https://doi.org/10.36680/j.itcon.2023.029","url":null,"abstract":"Despite advances in 3D clash detection during preconstruction, mechanical, electrical, and plumbing (MEP) installations are still prone to the detection of unforeseen clashes during construction. These issues must be resolved as quickly as possible to prevent significant schedule delays. Through interviews and field observations, this case study investigates the impact of mixed reality (MR) on the inspection and resolution of field-detected MEP issues from product, organization, and process (POP) perspectives. For the product impact, preliminary findings from the field interviews show that MR-based inspection would increase the quality of MEP installation by identifying errors easily and resolving them faster. For the organizational impact, we modeled and compared the current (as-is) and MR-integrated (to-be) MEP field issue resolution workflows using Business Process Model and Notation (BPMN) and determined that MR-based inspections can decrease the coordination overhead between MEP engineers and superintendents by up to 75%. This translates into at least a 50% faster resolution of an MEP issue for the process impact. The paper contributes to the practice of MR-based field inspection by providing a method to quantify potential time savings by integrating MR into the MEP field issue resolution workflow and field interview questions for MEP engineers and superintendents to further examine the use of MR during inspection activities in construction projects. Our observations of MEP superintendents and engineers during field inspection showed that not all building information visualized in MR is useful for their inspection tasks. We developed a classification for building information usefulness to help construction project managers who are deploying MR determine useful information for the task at hand that needs to be integrated into the 3D MR model for MR-based inspections.","PeriodicalId":51624,"journal":{"name":"Journal of Information Technology in Construction","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060102","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}
Pub Date : 2023-09-22DOI: 10.36680/j.itcon.2023.027
Oliver Disney, Mattias Roupé, Mikael Johansson, Johannes Ris, Per Höglin
Digital technologies are rapidly transforming the construction industry, offering new opportunities to improve site work performance. Traditionally, site workers take information from static construction documents such as 2D paper drawings. However, in the Nordic region, a dynamic approach known as Total BIM has gained interest. Total BIM is a model-based approach to construction where BIM replaces 2D drawings as the contractual and legally binding construction document, and site workers use production-oriented, cloud-based BIM, on mobile devices to extract construction information. By having a dynamic single source of information, site workers face new demands as they independently extract construction information directly from BIM. This paper investigates the impact of Total BIM on site work methods through four real-life case studies, site visits, workshops, seminars and semi-structured interviews. The findings indicated that Total BIM provided site workers with a more dynamic construction process where the mobile BIM-viewer software became a central communication and management platform. Key digital Total BIM features were investigated that site workers used to perform new work methods, including measuring, filtering, visualizing, communicating, checklists, and requests for information. By using Total BIM instead of static 2D drawings, site workers interacted dynamically with BIM on mobile devices, changing the process of how work was implemented on the construction site. The practical implications of these findings can be used to support the on-site implementation and strategy work of Total BIM. Furthermore, this paper contributes practical concrete examples of on-site Total BIM use and addresses issues commonly found in state-of-the-art BIM projects.
{"title":"Total BIM on the construction site: a dynamic single source of information","authors":"Oliver Disney, Mattias Roupé, Mikael Johansson, Johannes Ris, Per Höglin","doi":"10.36680/j.itcon.2023.027","DOIUrl":"https://doi.org/10.36680/j.itcon.2023.027","url":null,"abstract":"Digital technologies are rapidly transforming the construction industry, offering new opportunities to improve site work performance. Traditionally, site workers take information from static construction documents such as 2D paper drawings. However, in the Nordic region, a dynamic approach known as Total BIM has gained interest. Total BIM is a model-based approach to construction where BIM replaces 2D drawings as the contractual and legally binding construction document, and site workers use production-oriented, cloud-based BIM, on mobile devices to extract construction information. By having a dynamic single source of information, site workers face new demands as they independently extract construction information directly from BIM. This paper investigates the impact of Total BIM on site work methods through four real-life case studies, site visits, workshops, seminars and semi-structured interviews. The findings indicated that Total BIM provided site workers with a more dynamic construction process where the mobile BIM-viewer software became a central communication and management platform. Key digital Total BIM features were investigated that site workers used to perform new work methods, including measuring, filtering, visualizing, communicating, checklists, and requests for information. By using Total BIM instead of static 2D drawings, site workers interacted dynamically with BIM on mobile devices, changing the process of how work was implemented on the construction site. The practical implications of these findings can be used to support the on-site implementation and strategy work of Total BIM. Furthermore, this paper contributes practical concrete examples of on-site Total BIM use and addresses issues commonly found in state-of-the-art BIM projects.","PeriodicalId":51624,"journal":{"name":"Journal of Information Technology in Construction","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136061251","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}
Pub Date : 2023-09-22DOI: 10.36680/j.itcon.2023.033
Mustika Sari, Mohammed Ali Berawi, Teuku Yuri Zagloel, Nunik Madyaningarum, Perdana Miraj, Ardiansyah Ramadhan Pranoto, Bambang Susantono, Roy Woodhead
Smart building is a building development approach utilizing digital and communication technology to improve occupants' comfort inside the building and help increase energy usage efficiency in building operations. Despite its benefits, the smart building concept is still slowly adopted, particularly in developing countries. The advancement of computational techniques such as machine learning (ML) has helped building owners simulate and optimize various building performances in the building design process more accurately. Therefore, this study aims to assist energy efficiency design strategies in a building by identifying the features of the smart building characteristics that can potentially foster building energy efficiency. Furthermore, an ML model based on the features identified is then developed to predict the level of energy use. K-Nearest Neighbor (k-NN) algorithm is employed to develop the model with the openly accessible smart building energy usage datasets from Chulalongkorn University Building Energy Management System (CU-BEMS) as the training and testing datasets. The validation result shows that the predictive model has an average relative error value of 17.76%. The energy efficiency levels obtained from applying identified features range from 34.5% to 45.3%, depending on the reviewed floor. This paper also proposed the dashboard interface design for ML-based smart building energy management.
{"title":"Machine learning-based energy use prediction for the smart building energy management system","authors":"Mustika Sari, Mohammed Ali Berawi, Teuku Yuri Zagloel, Nunik Madyaningarum, Perdana Miraj, Ardiansyah Ramadhan Pranoto, Bambang Susantono, Roy Woodhead","doi":"10.36680/j.itcon.2023.033","DOIUrl":"https://doi.org/10.36680/j.itcon.2023.033","url":null,"abstract":"Smart building is a building development approach utilizing digital and communication technology to improve occupants' comfort inside the building and help increase energy usage efficiency in building operations. Despite its benefits, the smart building concept is still slowly adopted, particularly in developing countries. The advancement of computational techniques such as machine learning (ML) has helped building owners simulate and optimize various building performances in the building design process more accurately. Therefore, this study aims to assist energy efficiency design strategies in a building by identifying the features of the smart building characteristics that can potentially foster building energy efficiency. Furthermore, an ML model based on the features identified is then developed to predict the level of energy use. K-Nearest Neighbor (k-NN) algorithm is employed to develop the model with the openly accessible smart building energy usage datasets from Chulalongkorn University Building Energy Management System (CU-BEMS) as the training and testing datasets. The validation result shows that the predictive model has an average relative error value of 17.76%. The energy efficiency levels obtained from applying identified features range from 34.5% to 45.3%, depending on the reviewed floor. This paper also proposed the dashboard interface design for ML-based smart building energy management.","PeriodicalId":51624,"journal":{"name":"Journal of Information Technology in Construction","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060062","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}
Pub Date : 2023-09-22DOI: 10.36680/j.itcon.2023.028
Hassan Anifowose, Kifah Alhazzaa, Manish Dixit
An important practice for reducing the effects of global warming is the design and construction of energy-efficient buildings. In design education, the full comprehension of thermal behavior in buildings based on their geometry and material composition is required. The complexity of energy simulation principles, vis-a-vis the number of elements that impact the energy loads, their linkages, and their relationships to one another all combine to make this a challenging subject to absorb. Virtual Reality (VR) provides an immersive way to learn the concepts of building energy responses; however, the development of VR applications for education is difficult due to the knowledge, skill, and performance resource-related gaps. Unoptimized VR applications can adversely impact learning if user experiences are broken due to performance lags. This research, therefore, explores VR as a teaching tool for building energy education while showcasing the development process toward a visually accurate simulation and performant application. We developed EnergySIM; a multi-user VR building energy simulation prototype of the famous Farnsworth House. Using this prototype, we document rigorously tested development workflows for improved VR game performance, high visual fidelity, and user interaction, the three key factors which positively contribute to user knowledge retention. The study combines menu-driven interaction, virtual exploration, and miniature model manipulation approaches with the aim of testing user understanding and knowledge retention. Highlighted results provide reduced barriers of entry for educators towards developing higher quality educational VR applications. EnergySIM showcases pre-simulated building exterior surface heatmaps response from four seasons (winter, summer, fall, and spring) alongside an all-year-round sun-hour scenario. Four different material pre-simulated scenarios (single glazing, double glazing, concrete, and wood) for interior atmospheric temperature mapping are also explored. Preferred interaction methods are documented by allowing users’ visual appraisal of alternative building materials based on insulation capacity or resistance to heat flow (R-value). The significance of this work lies in its potential to revolutionize how students, designers, and instructors approach building energy education in today’s world. EnergySIM provides a hands-on and visually engaging learning experience towards the enhancement of knowledge retention and understanding. It pushes the boundaries of development for visual fidelity using geometry/mesh modeling input from various software into game engines and optimizing game performance using the HTC Vive Pro Eye and Meta Quest Pro headsets.
减少全球变暖影响的一个重要做法是设计和建造节能建筑。在设计教育中，需要根据建筑的几何形状和材料组成充分理解建筑的热行为。能量模拟原理的复杂性，相对于影响能量负荷的元素的数量，它们的联系，以及它们彼此之间的关系，都使这成为一个具有挑战性的主题。虚拟现实(VR)提供了一种身临其境的方式来学习建筑能源响应的概念;然而，由于知识、技能和性能资源相关的差距，VR应用于教育的开发是困难的。如果由于性能滞后而破坏了用户体验，那么未优化的VR应用程序可能会对学习产生不利影响。因此，本研究探索了VR作为建筑能源教育的教学工具，同时展示了视觉上精确的模拟和性能应用的发展过程。我们开发了EnergySIM;著名的法恩斯沃斯之家的多用户VR建筑能源模拟原型。使用此原型，我们记录了经过严格测试的开发工作流程，以改进VR游戏性能，高视觉保真度和用户交互，这三个关键因素对用户知识保留有积极贡献。该研究结合了菜单驱动交互、虚拟探索和微型模型操作方法，目的是测试用户的理解和知识保留。突出显示的结果为教育工作者开发更高质量的教育VR应用降低了进入门槛。EnergySIM展示了四个季节(冬季、夏季、秋季和春季)的预模拟建筑外表面热图响应，以及全年的太阳小时场景。四种不同的材料预模拟场景(单层玻璃，双层玻璃，混凝土和木材)，用于室内大气温度映射也进行了探索。通过允许用户根据隔热能力或热流阻力(r值)对可选建筑材料进行视觉评估，记录了首选的交互方法。这项工作的意义在于，它有可能彻底改变当今世界学生、设计师和教师如何进行建筑能源教育。EnergySIM提供了一个动手和视觉上引人入胜的学习经验，以提高知识的保留和理解。它推动了视觉保真度的发展界限，使用几何/网格建模输入从各种软件到游戏引擎，并使用HTC Vive Pro Eye和Meta Quest Pro耳机优化游戏性能。
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Pub Date : 2023-09-22DOI: 10.36680/j.itcon.2023.031
Carrie Sturts Dossick, Madision Snider, Laura Osburn
The adoption of Internet of Things has grown significantly in recent years both to address sustainability in campus operations and as part of digital twin systems. This study looks at in-depth cases of large university campus owners and the challenges that this IOT introduces for the maintenance and management of these systems and the data they collect. In this ethnography there are three main time orientations related to facilities management (Facilities), Information Technology (IT), and Capital Projects. First, a university campus is like a small city, with buildings, utilities, and transportation systems - taken together we call this campus infrastructure (buildings 50-100, roads and utilities 20-50 years). Second, IT employees think on 2–3-month scale, working through implementing software and hardware upgrades, configurations and patches, at times needing agile operations to deal with emerging cybersecurity threats. Third, in Capital Projects the design phase can last 9 months, and the construction from 1 - 2 years for a typical project, and this is where IOT technologies are often first introduced into campus. While the capital project teams reflect on the user experience, these teams are often removed from the realities of facilities management and do not understand the time scales or the scope of the work that is required to manage a portfolio of Facilities and IT systems. In this paper, we explore how these time orientations lead to tensions in the owners’ selection of IOT devices and systems, in the integration of new technologies into existing systems, and in the operations of keeping existing systems up and running for the longer time scales of campus infrastructure life spans. Furthermore, this paper presents a paradox: If they speed up, they lose things, if they slow down, they lose other things, and presents ways that owner organizations manage this paradox through temporal boundary spanners who understand the disciplinary requirements, cultures, and frameworks across the organization and helps to mitigate the tensions across these differences.
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