VISUAL PROGRAMMING FOR BUILDING INFORMATION MODELING: ENERGY AND SHADING ANALYSIS CASE STUDIES

BackgroundWith the rising adoption of Building Information Modeling (BIM) in the AEC sector, computational models supersede traditional ways of information provision based on textual documents and two-dimensional drawings. The use of models enables the streamlining of workflows, and the included virtual construction increases the quality of the final product, the building. To create a comprehensive description of a planned building, information from different sources must be combined, specified and regularly updated by the project’s stakeholders. The emerging models are highly structured, and instance files entail large amounts of data. However, in an unprocessed state, these models are of limited suitability for performing engineering tasks as the amount and structure does not match the domain-specific and purpose-oriented views.MethodsSelection and filtering data for the user’s needs is a well-understood task in computer science, and various approaches are available. A promising approach is the usage of formal query languages. In this paper, selected common query languages are examined and assessed for processing building model information. Based on the analysis, we come to the conclusion that textual query languages are too complex to be employed by typical end users in the construction industry such as architects and engineers.ResultsTo overcome this issue, two Visual Programming Languages representing a new, more intuitive mechanism for data retrieval are introduced. The first one, QL4BIM, is designed for general filtering of IFC models, the second one, VCCL, has been developed for Code Compliance Checking. Both languages provide operators based on the Relational Algebra to allow handling of relations - a highly required feature of BIM QLs.ConclusionsThe paper concludes with a discussion of the strengths and limitations of visual programming languages in the BIM context.

Building Information Modelling (BIM) is a revolutionary stride of technology in the orthodox construction and procedures in conventional Architecture Engineering and Construction (AEC) industry which is stressed upon for its delay on embracing new technologies. The strength of BIM has been disvalued in the eyes of many professionals, to think of BIM as just another ‘software’ which is in reality, a ‘process’ of attaining an outstanding collaboration among each and every stakeholder throughout a project’s life cycle. Hence, the philosophy of Supply Chain Management (SCM) in a construction project can be achieved effectively with the BIM’s promise of flexible and transparent interaction among Construction Supply Chain (CSC) contributors. However, the complexities in CSC of a conservative setup has been more composite with the intervention of BIM. Consequently, the BIM project stakeholders have encountered complications on the effective application of BIM on CSC while reaching the envisioned goals of BIM. Thus, the intention of this study is to develop a foreseeable information flow model related to construction supply chain in a BIM aided project. In order to attain the aim, an extensive literature synthesis was piloted to develop a conceptual informational flow model among CSC stakeholders of a BIM project. This contemporary research outlines that the CSC of a BIM project is much interactive and flexible with its collaborative effort of stakeholders when compared to the clashes among professionals in traditional setups. In a practical context, the roles and duties of BIM project stakeholders identified in BIM standards, have slightly differed due to real-world complications in construction industry. Besides that, BIM standards have laid down charismatic arrangements on information flows among BIM project stakeholders, which is in reality, a complex and random setup. Hence, the research outcome has successfully answered the complications by laying down guidelines for any outsider to the BIM field to recognise what would be the contribution of each stakeholder throughout the BIM project’s life cycle.

Enabling Building Information Modeling (BIM) Practices in the Canadian Construction Industry: A case for an academic programIn today’s construction industry, we are seeing a growing number of complex and high qualityconstruction projects all around the world using the BIM process. In order to get the most benefitout of BIM, there is a dire need for standards and efficient educational programs and courses totrain skilled professionals to support the implementation of BIM in the construction industry.Based on a preliminary environmental scan, there is a huge gap between industry BIM needs andavailable training/educational programs to facilitate effective implementation of BIM.Construction education needs to fill the gaps in BIM training for industry to remain current,responsive and relevant. Although an increasing number of educational institutions offeringarchitecture, engineering and construction programs have initiated to offer BIM related courses,there is no comprehensive curriculum developed by local academia to address the BIM relatedtraining needs of the construction industry in Alberta. Several researches and case studiesadvocate that industry stakeholders can use BIM technologies to save time and cost, whileimproving building quality. Integrating BIM collaboratively among stakeholders will also boostcompetitiveness and productivity in the building industry.BIM enables team collaboration, assisting project managers to more reliably communicateproject’s intent to all stakeholders in a timely fashion. It is therefore important for industry andacademic institutions to work collaboratively in order to understand the level and skillsetrequired for effective implementation of BIM practices in the industry.The paper aims to review the current state of BIM training programs; consult and solicitfeedback with various stakeholders with respect to training; and recommend appropriate trainingprograms that provides industry professionals with the fundamental skills and knowledge ofprinciples, terminologies, tools, and techniques related to BIM practices. The research utilizes aqualitative methodology to capture stakeholder’s experiences and understanding differentperspectives on BIM practices in the industry. The study suggests that a BIM certificate will helptraining our professionals better to address the needs of BIM practices in the constructionindustry. There is a dire need for a certificate program that provides the required skillset toproduce career ready professionals for enabling BIM practices in the construction industry. Thestudy findings would be of interest to BIM experts, construction professionals, and facultyinvolved with BIM education.

Malaysia is progressing into Industry Revolution (IR) 4.0 which emphasizes more onto digital, data and artificial intelligence where everything is expected to be automated. However, cost tends to be a major issue at the pioneer stage of embracing technology where Building Information Modelling (BIM) for example tends to be a cost tussle for the current construction industry. Yet, research has shown that BIM is arguably one of the technology platforms in combating the costing issue considering that BIM enables 3D model elements to link to cost and auto-generate quantities which potentially achieve cost-effective project. Due to the conflicting perspectives of how BIM affects project cost issues, it is imperative to investigate the cost-related issues in implementing BIM in the project and to determine how BIM in general positively influences the overall project cost. Qualitative research is adopted in this study. A semi-structured interview was conducted among four professionals who employs BIM in their project. They consist of the assistant manager, senior manager and chief executive officer. The data collected is analysed by utilising Matrix Table for better organisation. The scope of the study is in the Selangor state in which the local construction industry had applied BIM in their construction industry up to the 3D stage. The results showed that the BIM implementation cost is not too burdensome as it is only a one-time cost and does not vary throughout the project period. In addition, the BIM influence on the overall cost of the project is beneficial to the industry. It improves workflow and cost management. In conclusion, BIM is beneficial to the construction industry in the long term. It is important to resolve the cost-related issues for implement BIM and hence, encourage the usage of BIM, especially in the IR 4.0 ecosystem.

As building information modeling (BIM) gains popularity in the architecture, engineering, and construction (AEC) industry, manufacturers are required to distribute their product specifications in digital product models. Currently, manufacturers mainly employ proprietary formats, such as BIM objects supplemented by PDF documents to represent their product data descriptions. However, these formats do not support flexible automated product search and data integration. This paper describes the use of Semantic Web technologies in combination with BIM-based visual programming language (VPL) to automatically integrate product data from external databases. To facilitate data integration, we introduced a method to semantically represent product data linked with the CEN/TS 17623:2021 standard using ontologies in web ontology language (OWL). The study has focused on the use case of a manufacturer of lighting products. Results show that building designers are able to execute a more efficient product search that satisfies their query requirements and returns suitable products of their choice from the manufacturer's database based on their requests. This approach eliminates the time-consuming and error-prone process of manually entering product data into BIM software.

In the context of sustainable development and parametric design, it is interesting to analyze the possible synergies between Leadership in Energy and Environmental Design (LEED), the most-used certification scheme for the design, construction, and management of green buildings, and Building Information Modeling (BIM), which supports the supply, integration, and management of information throughout the building life cycle. This paper aims to review the state of the art of the different integration methods between LEED and BIM at the early design phase. Third-party software information exchange, the cloud-BIM approach, and plug-in development using application program interface (API) were considered as possible integration strategies to automate LEED certification by BIM. In addition, optimization models and rule-based methods were analyzed. Finally, a critical review on the limitations, advantages and future research developments in LEED and BIM integration was clearly defined. Although the development of plug-ins was the most powerful integration method, it requires advanced informatics knowledge. On the other hand, using third-party tools increased manual working and checking due to interoperability issues. A visual programming language (VPL) can allow designers and researchers without any informatics knowledge to create parametric BIM models by including LEED requirements.

More than traditional computer-aided design (CAD), Building Information Modeling (BIM) can include a lot of additional information about the various products and systems in the design. It was noticed that BIM had unbalanced applications among different types of construction. BIM has been shown to provide a significant cost savings to the design firms and clients by its use in residential construction. Yet, it has limited use on a very small number of industrial construction projects. Rather than performing a theoretical cost analysis on BIM usage to prove that it could save project cost, this paper explores the specific benefits that BIM provides from an industry perspective, and see how they would translate to the industrial construction sector. To do this, BIM users in industrial and commercial construction are surveyed. The first-hand survey results revealed that the two biggest benefits to BIM are clash detection and the large amount of information it can provide to the entire stakeholder in the project. Comparing these benefits to the current practices used in the industrial engineering and construction field leads to the conclusion that, BIM usage is probably not worth the cost investment for these firms. There are some additional considerations as to why including BIM capabilities in a company’s profile would be a good option, but cost savings is not the most important.

Managing the graphical complexity of real-life programs expressed in visual programming languages is a great challenge in each visual programming environment. Besides general methods like displaying/layouting graphs and icons on different levels of abstraction or organizing multiple window environments, built-in language mechanisms which permit the structured and modular design of visual programs are essential to overcome this problem. We address these problems by discussing a concept for visual modules in a diagrammatic parallel language as well as a method to describe massive parallel programs consisting of hundreds of processes by means of a visual replication mechanism. >

This paper examines the implementation of building information modeling (BIM) in construction industry. Various initiatives and approaches are used in different countries to promote the BIM implementation in their construction industries. The real implementation and use of BIM remains a major concern of the construction industry. This study investigates the implantation of BIM globally, in developed countries and the percentage of implementation of BIM in constriction industry of Sindh, Pakistan. This research demonstrates 131 responses from BIM users regarding BIM implementation whose collaboration aspects produce the highest positive impact. The adopted methodology is an online questionnaire survey and literature review which was conducted to find out the implementation of BIM in construction industries of developed countries. This research reveals that BIM implementation is increasing continuously over the past few years. A Number of developed countries are emerging successful BIM implementation strategies, United States, United Kingdom, Germany, France are generally leading the way. However, according to our study findings, only 11% of industries have implemented BIM in Sindh, Pakistan.

This research was designed to assess the significance of using Building Information Modeling (BIM) standards to enhance efficiency in the Qatari construction industry. The need for more efficient processes arose in part from the Qatari government’s increased level of investment in infrastructure and the accompanying desire to secure the country’s 2030 vision. A questionnaire was used to collect primary data from the Qatari construction industry. Three questions guided this research: (i) What are the current challenges facing the Qatari construction industry in the smooth deliverance of projects?” (ii) “What strategies does the industry use in the promotion of an integrated business model that is technological centric?” (iii) “What are the possible challenges that the industry would face if it were to adopt BIM as a standard for all projects in the Qatari construction industry?” The outcome of the research shows that using BIM as a standard could not reduce the inefficiencies faced by the industry. While the respondents to the survey had realised that the industry had challenges, the implementation of BIM seemed not to be in line with the difficulties experienced in the industry. This finding was supported by a Pearson correlation coefficient of 0.001 for many survey questions. While the industry could be using BIM in general, it still does not form part of the strategy to promote collaborative working. The research did not emphasise the process of implementing BIM standards because most contracts did not require the use of BIM; neither do regulators. The research highlights the challenges of implementing BIM as a standard in a modern construction industry that is facing inefficiency. Even though clients have the capacity to apply innovative strategies, they are stifled by complex business structures and processes. Inefficient delivery of facilities raises questions about the management structures used by the industry. With a large expatriate workforce, Qatar needs systematic tools and approaches such as BIM for managing construction processes regardless of the level of experience and exposure of its managers. Adopting BIM could significantly improve working relations on projects. The research shows that the construction industry would require a standardised BIM process if companies were to deliver on their targets. There is value in adopting tools and techniques that would enhance collaborative tendencies by professionals working in the industry. However, the overall strategy to implement a standardised BIM approach would initially exacerbate current problems before it could bring forth improvements to the construction process.

The construction industry has made significant improvements in adopting and integrating emerging technologies. One example is the wide use of Building Information Modeling (BIM), which offers numerous benefits to the construction industry. BIM assists project teams in achieving better quality with lower risk, shorter timeframes, and reduced costs. Meanwhile, the Project Management Body of Knowledge (PMBOK) defines the required discipline to meet stakeholders' needs. PMBOK aims to facilitate the achievement of predefined project deliverables and improve project goals through effective communication and decision-making processes. This paper presents a questionnaire-based investigation to measure whether BIM implementation enhances the PMBOK in projects and whether BIM positively affects Project Management Knowledge Areas (PMKAs) on a global scale. The questionnaire consisted of 7 general questions, 37 PMBOK-oriented questions, and 4 questions targeting BIM advantages and obstacles. 95 experts participated in the survey based on the LinkedIn search and survey invitation. The results showed that BIM dramatically influences the quality of execution of PMKAs, specifically in Project Integration Management. Additionally, the study examined the effect of BIM on the product lifecycle that BIM improves project coordination and discovers clashes during the engineering phase. In the construction phase, BIM facilitates as-built drawings and enhances communication, and during the post-construction phase, BIM enhances facility and components’ lifecycle management. The research also found that the most significant obstacles to implementing BIM are the lack of experts, value propositions, and efficient training.

Malaysia is experiencing high economic growth which requires the construction industry to fulfill development demands. Building Information Modelling (BIM) had been widely publicized by the government in order to increase the industry’s productivity by instigating numerous initiatives aimed to spearhead its progression. In contrast with the aspiration, architects as key players of construction industry are still facing issues in adopting BIM into practice. Previous researches had broadly covered about BIM in construction industry, but few concentrations in specific to the local architect thus imposing gap of knowledge. In addressing the issues, the research aim to probe the current state of BIM implementation, primarily on the challenges that hinders its adoption. The BIM factors which covers people, process, policy and technology were derived and investigated through the use of 322 questionnaires distributed to architects at management and operational level. The study revealed the key barriers that contributes towards the problem is within the people factor, where majority highlighted the lacked of skilled and experienced BIM workforce which contributes towards steep learning environment as well as high cost of applying BIM. Consequently, several key strategic solutions had been indicated through both external and internal factors in addressing the challenge of BIM. Results suggested that there is a need of further support from the industry’s professional bodies, development of legal instruments, BIM enforcement, specific BIM education as well as BIM R&D programs.

The term of Building Information Modelling (BIM) has become ubiquitous in construction industry of China. The purpose of this study is to investigate implementation of BIM in construction industry in China, including the BIM strategy, the BIM standards, and the projects that utilized BIM and so on. The methodology for this paper is based on a literature review of the strategy, the standards in relation to BIM and a detailed case study of 30 BIM implementation projects in construction industry in China. A range of key factors that affected the BIM implementation and the initiatives to accelerate the BIM development in China were found in this paper, such as the BIM standards system, the BIM commercial model, BIM contribution to sustainability and so on. From the research findings, some conclusions and recommendations were drawn to explore effective ways to promote the BIM implementation in China.

Building Information Modeling (BIM) is currently being used by the architecture, engineering and construction (AEC) industry in Malaysia. It has been introduced by the Director of Public Works Department (PWD) in 2007 to reduce construction costs and avoid design problems. BIM utilization in construction can detect any clash analysis during the design stage, improves efficiency of project scheduling, reduce costs and ensure high quality of the project as well as facilitate communication among construction players. Since it has been introduced by the PWD, several projects have been constructed and being constructed using BIM and one of the project is The National Cancer Institute (NCI). The project is owned by the Malaysian government. This paper discusses the application of BIM in the project, the first project launched by the Malaysian government. A literature review was conducted to explore previous BIM studies on the history of BIM, benefits and importance, barriers and challenges as well as existing BIM projects in the Malaysian construction industry. Furthermore, semi-structured interviews were carried out with the client, consultant and contractor involved in the project. The interviews results reveal necessities and benefits of implementing BIM in completing the project. BIM is necessary for construction because its implementation can increase project quality. It is useful in assisting construction players to complete projects successfully. The results provide clear evidence of the effectiveness of implementing BIM in government projects. This paper can serve as a reference for critical studies of developing a strategy approach model for BIM implementation in the Malaysian construction industry.

Background: Implementation of Building Information Modelling (BIM) has proven to deliver major performance improvements in Program efficiency, design quality, constructability, waste reduction, environmental performance, and capital & operational cost management of built environment projects. Yet BIM implementation in low BIM maturity markets, such as the UAE, is limited to technology applications which fail to deliver the full potential of BIM benefits to client originations. Objective: The purpose of this paper is to investigate BIM implementation from a client’s perspective and to present a case study that exhibits a level 2 BIM implementation process in a traditional procurement environment. Methods: The study has used a case study approach combined with a literature review. A critical appraisal of relevant literature is presented to highlight key issues hindering BIM implementation for client organizations, especially in developing BIM markets, such as the UAE. The research is collected using an action research approach within a case study, including project document audit, participation in project collaboration meetings and extensive communication with the project stakeholders. The case study is presented in a practice-oriented research format describing the project details, procurement approach, BIM development & management process and benefits achieved for the project client. Results: The paper presents a structured approach to strategically introduce BIM within a low BIM maturity market, creating partnering relationships, empower the supply chain partners and achieving significant BIM benefits with minimum disruption to existing work practices. The paper highlights that although BIM requires a step-change in the work practices of the construction industry, yet it is possible to successfully implement BIM with traditional procurement settings, which may be a critical feature in a certain market or a client requirement. Conclusion: There is a need for case study based, practice-oriented research work within the domain of BIM implementation. Construction clients in low maturity BIM markets are concerned about the perceived benefits of BIM and its practical implementation within existing business practices, which is addressed in this paper. Overall, the findings of this study are useful for construction industry clients and academia in redefining the existing work practices to incorporate BIM-enabled processes and applications.