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![Example federated model (Adopted from) [8]](publication/342848391/figure/fig2/AS:911798358261762@1594401077438/Example-federated-model-Adopted-from-8.jpg)
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![Figure 1. Design coordination workflow (Adopted from [8])](publication/342848391/figure/fig1/AS:911798358269953@1594401077410/Design-coordination-workflow-Adopted-from-8_Q320.jpg)
![Figure 2. Example federated model (Adopted from) [8]](publication/342848391/figure/fig2/AS:911798358261762@1594401077438/Example-federated-model-Adopted-from-8_Q320.jpg)
Design conflict detection in construction projects is a very important task for ensuring the quality, time and cost. This job now has become more convenient due to the use of BIM. This paper proposes a process for BIM-based clash detection for introducing to the BIM practitioners in Vietnam. This process was then adopted in a complicated control ho...
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... the federated model (an integrated model from individual discipline-specific models) will be generated. The federated model will be used for clash detection, which includes (1) visual inspections and (2) Leite [8] also emphasizes the importance of the federated model (Figure 2), which is developed by combining several models created by designers and subcontractors. The LOD of the federated model also needs to be defined as of LOD 350 (i.e., some elements such as architectural and structural models are in LOD 300, while others like MEP models are in LOD 400). ...
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... Dependency on the services provided by an MEP system keeps expanding, as it has an extreme effect on the operation efficiency and safety of a building relying on various subsystems such as a heating, ventilation, and air conditioning (HVAC) system, a water supply & drainage system, and a lighting system [27,41]. As a result, the development of an MEP model for a large-scale project is time-consuming, labor-intensive, and error-prone [32]. The development and prevalence of digital technologies in the construction industry, especially the Building Information Modelling (BIM) and Internet of Things (IoT) have significantly eased the design, coordination, construction, and operation & maintenance phases of the MEP system [35,53]. ...
... According to previous studies, BIM application is a promising way for construction project management, throughout the building life-cycle, through optimizing construction design and construction activities, managing construction assets, and reducing excessive waste, among other things [26]. Specifically, BIM can be applied in cost estimation from early design to detailed design and construction stage [27,28], structural design process [29], Mechanical, Electrical and Plumbing (MEP) systems design [30], design conflict detection [31], schedule management [32], quality control [33], safety risk management on construction sites [34], energy analysis [35], and facility management [36], etc. A complete list of BIM applications in all of the project life-cycle can be found in the work of Meng et al. [16]. ...
... . The proposed lists of pilot projects show that the Vietnamese Government is very interested in applying BIM to improve productivity and efficiency in construction activities in general and construction projects using state capital in particular. Regarding the BIM uses, 3D models are developed to detect design conflicts, provide a visual perspective for parties or some of the project documentation services, bidding, or manipulating work volumes [7,31]. Fig. 4 shows that BIM services are proposed to be delivered in many different project stages from surveying, project formulation (development), design, construction, completion and operation management. ...
Public construction projects in Vietnam are managed by project management units (PMUs). A PMU should consist of the board of directors, a project office, functional and project executive departments. Functional departments are in charge of investor's responsibilities, while project executive departments are in charge of project execution. This paper discusses the practice of BIM adoption in a case study of a PMU (SPMB) in a public project. Lessons learned include the fact that, while BIM could provide certain benefits to the project, it also extended the project's duration and increased project costs. The SPMB, previously departmentalized by project phases, has changed its organizational structure by establishing a task group made up of professionals from various project executive departments, leading directly by the SPMB leaders, to address BIM issues, though only some basic uses of BIM have been applied. The functions of the project executive departments have also been adjusted due to the application of a new procurement form and the emergence of new processes, and the requirements for a new type of capability (BIM). Subsequently, other elements of the organizational design have been changed accordingly. The lessons learned contribute to the current understanding that PMUs need substantially organizational restructuring for BIM implementation effectively and efficiently while also well-prepared for negative impacts.
... Koordinator BIM juga harus bersama-sama tim untuk melakukan koordinasi lintas disiplin dan proses tersebut juga memakan waktu, terutama aturan untuk positioning. (Nguyen et al., 2020). Selain itu di industri konstruksi di Malaysia Identifikasi kriteria kesiapan yang didasarkan pada kebutuhan organisasi untuk pelaksanaan BIM telah menjadi hal yang sangat penting dalam pelaksanaan BIM. ...
... Koordinator BIM juga harus bersama-sama tim untuk melakukan koordinasi lintas disiplin dan proses tersebut juga memakan waktu, terutama aturan untuk positioning. (Nguyen et al., 2020). Selain itu di industri konstruksi di Malaysia Identifikasi kriteria kesiapan yang didasarkan pada kebutuhan organisasi untuk pelaksanaan BIM telah menjadi hal yang sangat penting dalam pelaksanaan BIM. ...
BIM changes the methods from conventional inefficient to integrated and collaborative processes. Various benefits and advantages of using Building Information Modeling (BIM) are integration between design and construction. In Indonesia, the use of BIM is part of government regulations for state buildings with an area above 2000 m2 and above two floors so that the use of BIM is increasingly widespread. However, the challenges of using BIM in Indonesia have to look for solutions so that the implementation can be improved. This article presents a review of the literature on the opportunities for using BIM and a review of case studies in developed countries as well as the challenges of case studies in Indonesia, namely the expansion of T1 at Juanda Airport Surabaya. Data is taken from secondary data in the form of literature review and secondary data of Juanda airport project documents and primary data from personal experience by the second author as the project coordinator of the T1 expansion planning for Juanda Airport Surabaya in the use of BIM in the project. Abstrak BIM mengubah metode dari konvensional yang tidak efisien menjadi proses yang terpadu dan kolaboratif. Berbagai manfaat dan keuntungan dari penggunaan Building Information Modelling (BIM) antara lain seperti terpadunya antara desain dan konstruksi. Di Indonesia penggunaan BIM menjadi bagian dari peraturan pemerintah untuk bangunan negara dengan luas diatas 2000 m2 dan diatas 2 lantai sehingga penggunaan BIM menjadi semakin luas. Namun beberapa tantangan dalam penggunaan BIM di Indonesia perlu dicarikan solusinya agar dapat ditingkatkan lagi pelaksanaannya. Artikel ini mengetengahkan review dari literatur tentang peluang penggunaan BIM dan review studi kasus di negara maju serta tantangan studi kasus yang ada di Indonesia yaitu pada perluasan T1 bandar udara Juanda Surabaya. Data diambil dari data sekunder berupa review literatur dan data sekunder dokumen proyek bandar udara Juanda serta data primer berupa pengalaman pribadi oleh penulis kedua sebagai koordinator proyek perencanaan perluasan T1 bandar udara Juanda Surabaya dalam penggunaan BIM pada proyek. Kata Kunci: building information modelling, BIM, desain bangunan, konstruksi, tantangan BIM.
This study investigates the reliability of monodiscipline IFC/BIM models in public construction projects of educational facilities through advanced clash detection and quantitative analysis. Data were collected from BIM models of two kindergartens and a school in Vilnius, Lithuania, representing different design disciplines. A mixed-methods approach was employed to analyse the number, types, and geometric characteristics of detected clashes. The research introduces innovative metrics, such as the Relative Quality Coefficient (RQC), Relative Uncertainty Coefficient (RUC), and Modified Relative Quality Coefficient (MRQC), to assess model quality and reliability quantitatively. The findings reveal a direct relationship between model complexity, clash detection precision, and the number of identified clashes, underscoring the importance of enhanced quality control measures in IFC/BIM models for public procurement. The study concludes that the implementation of these novel metrics can enhance the reliability of IFC/BIM models, thereby optimizing the design and construction process.
ان استخدام تقنية كشف التداخلات مع بعضها في نمذجة معلومات البناء (BIM) لها أهمية كبيرة في قطاع التشييد باعتبارها جانبًا حاسمًا في تنسيق وترابط المخططات. تكمن وظيفتها الأساسية في تحديد أخطاء التصميم وعدم التناسق والترابط بين التخصصات المختلفة أثناء مرحلة التصميم قبل بدء المشروع. تتطلب هذه التعارضات الى تصحيح وتنقيح مستمر للمخططات، مما يؤدي إلى مشاكل في تأخير الوقت وتجاوز الكلف. لغرض اجراء هذا البحث، تم اختيار مشروع مدرسة نموذجية تتكون من عشرة مباني كل مبنى من طابقين، منفذ منها فقط اثنان كدراسة الحالة. يهدف هذا البحث إلى توضيح وقياس فوائد توفير التكاليف التي يمكن تحقيقها من خلال استخدام تقنية كشف الصدام المدعمة بـ BIM في مرحلة التصميم. تضمنت منهجية البحث جمع بيانات البناء وتحويل الرسومات المعمارية والإنشائية بشكل مستقل من 2D إلى 3D، ثم تصديرها لاحقًا إلى برنامج Navisworks لتحليلها. كشفت النتائج عن وجود عيوب تصميمية متعددة تتطلب تصحيحها قبل البدء في مرحلة التنفيذ. وفقًا للنتائج التي تم الحصول عليها، لوحظ أن إجمالي التكاليف التي تم إنفاقها على كل مبنى تجاوزت التكاليف الإجمالية المقدرة بنحو 25٪ بسبب أخطاء التصميم. فضلاً عن عند النظر في مجموعة من الفقرات في جدول الكميات لكل مبنى أثناء تحليل الحساب واكتشاف أخطاء التصميم، وجد أن كل فقرة شهدت زيادة بنسبة 10٪ في التكاليف مقارنة بالكلف المقدرة. وبالتالي فإن إجمالي التكاليف الإجمالية لكلا المبنيين تجاوزت 100 مليون دينار عراقي. أوضحت الدراسة استخدام تقنية BIM وتأثيرها بشكل كبير على مراحل الانشاء وتحسينها وكيف يتم استخدام نموذج بناء متكامل يسهل في تطابق الكلف المخمنة بأكبر قدر ممكن مقارنة بالكلف الحقيقية.
Building Information Modelling (BIM) has been proven as an innovative approach to bring values to construction projects as well as stakeholders, including construction consultancy firms. BIM adoption could assist construction consultancy Small and Medium-sized Enterprise (SMEs) in enhancing their competitive capability. Using a case study with a pioneer BIM service providers which is an SME in Vietnam (the Consultant), the paper explores the core competences for delivering BIM services in relation with potential competitive advantages. Four typical BIM market segments have been discovered, which include: i) BIM strategic services, (ii) BIM services, (iii) BIM-enabled services, and (iv) BIM tools development. Exploring six BIM cases, the realized core competences of the Consultant which are reported in the paper include the BIM-related skillful human resources (both in-house and from external), BIM know-hows, reputation, and also the benefits from a BIM network that the Consultant established as an outcome of a granted BIM research project. Focusing on only the first three market segments, the Consultant has taken advantage of their core competences to deliver differentiation and focus strategies to compete and generate competitive advantages. Cost leadership strategies were not very successful in the case study due to that the economies of scale could not be met; however, they can be considered with the provision of BIM-enabled services when BIM services are delivered together with other consultancy and/or construction services.
Building Information Modelling (BIM) has gained a wide adoption internationally, and Vietnam is one of the following countries regarding this technology. In order to promote the adoption of BIM in the construction stage, it is necessary to identify and analyse the barriers toward BIM adoption of contractors, then find out solutions for helping them to overcome. This research aims at exploring the barriers when contractors in Vietnam adopt BIM by conducting a study among contractors in Vietnam with 5 expert interviews following by a survey with participants as professionals in the industry. The paper presents the research results which confirm the findings from the literature that, the five main groups of barriers include legal issues, financial issues, management issues, lack of qualified human resources and resistance to change to adopt BIM. However, some more detailed findings have been put out from this research, which include the costs for BIM, the different levels of management issues as barriers to BIM adoption, the need for a contract form that considers BIM as an integrated part of the construction services, not a separate service. Also, the lack of relevant regulations detailing the eligible BIM-related activities and costs is also a significant barrier. Further research can be developed from this research results to validate those detailed barriers in the broader coverage. Policies makers can also find them as references when improving the policies for BIM promotion. Moreover, contractors can refer to them when they develop their strategies with BIM.
Building Information Modelling (BIM) has been proven to bring about multiple benefits to construction projects, therefore, it has been gradually adopted in various types of construction companies. In an increasingly competitive market, BIM adoption could assist construction consultancy Small and Medium-sized Enterprise (SMEs) to enhance their competitive capability. This study explores the perception of Vietnamese SMEs regarding BIM as a source of competitive advantages and competitive strategies. Two groups of firms, who have and have not adopted BIM, were selected to interview with semi-structured questionnaires to first investigate drivers, benefits/potential benefits of BIM application in relation to the competitive advantages of the firms, and then a comparison was conducted within the two groups to see their viewpoints in different aspects. The results show that none of the six interviewed SMEs chose implementing a competitive strategy as a motive of BIM adoption, but they all do agree that BIM could bring in some other benefits to help them stand out from others. One the one hand, differentiation strategy is the most chosen BIM-deployed competitive strategy, on the other hand, cost benefits have been experienced by firms who applied BIM; therefore, cost strategy is opted by this group.
Building Information Modelling (BIM), an emerging trend in the construction industry worldwide, has been officially introduced to Vietnam recently in some piloted projects. However, in Vietnam, the BIM market is still immature due to that the players in the construction industry have perceived many barriers in adopting this new solution. In a country with a civil law system like Vietnam, the legal environment is considered as the most important enabler for the construction industry to adopt innovative technologies, including BIM. This paper, using a hybrid research approach of surveys and expert judgment, discusses the most popular barriers in BIM adoption in the construction industry in Vietnam, which include five internal and five external barriers. The country’s BIM roadmap, policies and relevant legal documents that are currently in effective are then collected and analyzed in line with the discovered barriers in order to explore their effectiveness in creating an enabling environment for BIM adoption and implementation in the local conditions. After that, legal considerations on the clarity and feasibility roadmap for BIM adoption, the reasonableness of the strategy/plan to grow the industry’s BIM capacity, the system of relevant laws and regulations to govern the BIM-enabled construction projects, the need for a new set of standards and codes for BIM-related processes, and an incentive system for the pioneers in BIM adoption in public sector are discussed. Recommendations on the legal document system, governmental policies, incentives and supports from the Government to encourage the construction industry to apply BIM are then presented. Further research can be developed beyond this research to validate the research results in a broader coverage.
