• Spatial Information Research
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• v.21 no.1
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• pp.53-62
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• 2013

The purpose of this study is to suggest the development direction of a BIM performance assessment tool. To do this, a series of focused group interviews were conducted with BIM experts in South Korea regarding the objective, characteristic, potential problems of a BIM performance assessment tool. A survey questionnaire was developed based on the focused group interviews and distributed to practitioners through four different occasions. The survey results showed that there were the significant differences between practitioners by their field and years of experience about the objective, characteristic, potential problems of a BIM performance assessment tool. Based on the survey results, the consideration factors for developing a BIM performance assessment tool was suggested.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.11
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• pp.5897-5905
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• 2013

In spite of advantage by using BIM as quantity take-off, schedule control and clash check, absence of guidelines is a barrier to applying BIM to road domain. In this research, domestic and overseas cases of BIM guideline are analyzed in order to develop the road BIM deliverable submission system. The analysis is classified 5 topics which are BIM submit product list, submit files format, availability of existing 2D based products, BIM authoring tools and submit process. As a result, It needs a lot of effort to standardize BIM delivery system for road domain because BIM submit product list and BIM authoring tools are changable depending on BIM use cases. However, submit files format and submit process are common part to suggest guidelines of road BIM delivery system. It requires to combine BIM and 2D products for road BIM delivery system because delivery products are not exactly alternative 2D based delivery products for the present. The authors expect this research to use as basic data for development of the BIM deliverable submission system in road domain.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.12
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• pp.153-161
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• 2020

Building information modeling (BIM) is a smart construction technique that is recognized as essential for current construction facility projects. The Public Procurement Service (a construction project-ordering agency) announced a plan to introduce BIM and has required changing the operation of projects by using BIM design information. LCC analysis is essential for items, quantity, and cost information of the construction, and it is expected that efficient work will be achieved by using BIM design information. In this study, a BIM-LCC analysis system was established for selecting optimal design alternatives by actively using open KBIMS libraries. The BIM-LCC analysis system consists of a single alternative and an optimal alternative LCC analysis, but it has a limitation in that only the architecture and machine libraries have been applied. However, by applying BIM, practical use and work efficiency can be expected. In order to use the method as an LCC analysis support tool with BIM design information in the future, it will be necessary to collect user opinions and improve the UI.

• Journal of KIBIM
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• v.11 no.3
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• pp.1-11
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• 2021

BIM is one of the means of reducing the economic loss caused by design errors. These features of BIM have led to increased use of BIM. With the increasing use of BIM, several studies have been conducted to analyze the performance of BIM. As the importance of BIM staff is emphasized in the performance analysis of BIM, the human resource allocation of BIM staff can become an important research issue. However, there are few studies to measure the workforce effectiveness of BIM staff. Ham et al (2020) measured BIM workforce efficiency using FCFS queue model rules. Since design errors can have different effects on the project depending on the type, there are design errors that must be dealt with first. Therefore, in this study, a priority queue was used to solve design errors with high priority first. The performance of BIM-based design verification was analyzed by quantitatively analyzing the performance of BIM staff when the priority rule was applied to the design error processing sequence.

• Proceedings of the Korea Contents Association Conference
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• 2013.05a
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• pp.437-438
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• 2013

최근 BIM(Building Information Modeling)은 건설사업의 뜨거운 이슈로 부각되고 있으며 기존의 건설공사에서 2D로 관리되고있는 각종 성과물을 3D로 관리하면서 간섭검토, 에너지분석, 시공성검토 등 기존의 2D로 하기 어려웠던 다양한 의사결정 등을 지원할 수 있는 새로운 기술이다. 하지만 이렇게 다양하게 BIM이 활용되기 위해서는 활용목적에 맞는 성과품 및 산출물이 적절하게 만들어져야 하나 건축분야만 일부 제시되고 있을 뿐 토목분야는 사례를 찾아보기가 힘들다. 이에 국외 토목 BIM 발주사례와 국내 건축 BIM 관련 가이드, 현행 2D 기반의 성과품 납품체계 등을 조사하여 도로분야의 BIM성과품 납품체계 개발방안을 제시하였다.

• The Journal of the Korea Contents Association
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• v.13 no.11
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• pp.441-450
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• 2013

With the recent increase in BIM orders in civil engineering, project owners are supplied with BIM-based products. Due to the lack of related guidelines, however, and the vague regulations on the creation and level of drawings as well as on the products list, many owners receive BIM-based products along with the existing 2D products. This can lead to task overlapping by designers or contractors and can cause the owners to have more data to maintain. If the existing 2D-based electronic supply system is changed to a BIM ordering system to reduce such a burden, it is necessary to examine the 2D products that can be extracted from or substituted for the BIM model so as to minimize the overlapping products. Therefore, in this study, BIM modeling of road construction projects whose enforcement plan by the Ministry of Land and Transportation has been completed was conducted, and based on the study results, the possibility of extracting 2D drawings from a total of 3,767 drawing items was determined. The results showed that 2,549 drawing items (67%) could be extracted as 2D drawings from the BIM model, and in particular, drawing items related to general connection work, earthwork, and amenities work could be most effectively substituted. The results of this study can be used as the base data for reducing the number of 2D drawings or substituting them in developing a BIM-based product supply system in the future.

• Journal of the Korea Society of Computer and Information
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• v.25 no.12
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• pp.1-15
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• 2020

In this paper, we propose a novel method for converting the existing 2D processes in the design and construction phase of civil engineering, to the future BIM-based processes. First, we compare and analyze the actual application processes of the outputs of the existing 2D method and the outputs of the 3D BIM method, for the whole process of BIM design of earthworks and road structures and integrated utilization of quantity, process(4D) and construction cost(5D), in view of life-cycle. The proposed method acquire the outputs of the design phase integrating IFC international common standard file information and CBS/OBS/WBS standard classification scheme information, and acquire the outputs of the construction stage by using an integrated utilization module for quantity, process(4D) and construction cost(5D). Ultimately, we intend to commercialize the step by step technologies for BIM design and construction in civil engineering by using the proposed method.

• Korean Journal of Construction Engineering and Management
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• v.25 no.5
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• pp.3-14
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• 2024

Recently, both nationally and internationally, various BIM guidelines have been developed. These guidelines present fundamental principles and standards for the application of BIM. However, practical BIM guidelines for the schedule management area in the construction phase are lacking, making it difficult to apply them effectively in practical work settings. In this study, performance-based delivery guidelines are presented for the key functionalities of 4D CAD systems, which are representative BIM tools used in the construction phase. To achieve this, a survey analysis was conducted to determine the prioritization of these functionalities. Based on the characteristics of the project, delivery guidelines were formulated to allow users to selectively utilize the guidelines at different levels. Furthermore, practical ways to utilize performance-based delivery guidelines for schedule management using 4D CAD were proposed, validating the usability of these guidelines. The research findings suggest that these guidelines for BIM functionality in schedule management can hold practical significance as the utilization of BIM in construction phases continues to increase.

• Journal of KIBIM
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• v.7 no.3
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• pp.31-39
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• 2017

BIM is effective to improve the labor productivity of construction participants. From this point of view, it is important to analyze the outcome related with BIM Labor which covers most of the BIM investment costs. This research focuses on BIM RFI which is one of the major task of the BIM labor and analyze the outcomes. In addition, this research was quantitatively analyzed by the standby time and related cost caused by BIM labor, which affect the results of the project participants. To this end, analytical standby queue model was utilized to analyze the labor focusing on micros TASK. 11 projects were selected to analyze the results of BIM labor and RFI that the project participants requested to the BIM labor was collected. Through this, it collected variables for analyzing results, and Finally, we pulled out 4 projects for analysis. In this study, the basic results analysis of RFI processing of the BIM labor, the probabilistic analysis of BIM labor service status, and the economic analysis of BIM labor optimal inputs were performed by using the research model presented. The results of this study can be utilized to formulate the optimal strategy for BIM labor inputs(e.g. number of employees, level, time point, etc.) of the construction phase. Moreover, it can contribute to ensuring the credibility of the BIM ROI results by presenting the cost of BIM services in BIM ROI analysis and the standby cost of project participants.

• Journal of KIBIM
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• v.5 no.2
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• pp.1-11
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• 2015

Despite a lot of research on BIM, there is no quantitative study to measure accurately the performance of BIM coordination service. Thus, this study suggested method to measure the performace of BIM coordination services, applying queueing models in the field of management science. To analyze queuing system of BIM coordination services, a group of BIM coordinator were selected. Through focus group interviews with experts were used in the analysis to derive mean arrival rate(${\lambda}$), mean service rate(${\mu}$) of BIM coordination services. Single-server queuing model(M/M/1), multiple server queuing model(M/M/s) is utilized for the BIM coordination services performance measurement in construction phase. This study has significant quantitative performance measurement approaches that can be utilized in the decision-making for the improvement of the BIM coordination services and to support the review of the alternatives accordingly. But There is a limit but it is difficult to take into account the increase or decrease of the cost of alternatives according to the review.