• Journal of the Computational Structural Engineering Institute of Korea
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• v.33 no.1
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• pp.35-44
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• 2020

In the construction industry, there is a growing demand for the accurate calculation of the quantity take-off and construction budget at the design stage, and it is likewise important to grasp changes in the construction budget and quantity take-off if design alterations are made. In addition, lawsuits related to the quantity take-off and cost of construction are frequent; therefore, the calculation of these factors using building information modeling (BIM) has emerged as an alternative. However, existing 2D-based methods are still used more frequently than BIM-based methods for quantity take-offs and construction budgets. This is because of the lack of BIM experience of estimation workers and the absence of a national standard. However, from a designer's point of view, it is necessary to understand the quantity take-off and construction cost based on BIM and accurately create the design according to the budget. In this study, the quantity take-offs of concrete, rebar, and reinforced concrete structures (apartments) in Seoul and Yeongjong were compared with the quantity take-offs based on 2D and BIM methods. From the viewpoint of the designer, we aim to increase the accuracy of BIM-based quantity take-offs.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.1452-1453
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• 2015

BIM 전기설계는 조달청 공고에 따라 공공부문에서 의무 적용을 시작하면 민간까지 점차 활성화 될 것으로 보이지만 기술적인 부분이 뒷받침이 되어야 조기정착 뿐만 아니라 관련분야 시장경제 활성화를 도모할 수 있을 것으로 예상된다. 하지만, BIM 활용가이드, 프로그램 등 활용상의 기술적인 부분이 개발되어 있지 않아 현실적인 어려움에 처해 있는 것이 사실이지만 이보다 더 시급한 것이 실무자들이 활용할 수 있는 기반을 마련해 주는 것이 더 시급하다. 그 일례로 BIM 설계에 필수요소인 라이브러리를 활용하고 공유하기 위한 기본체제인 라이브러리 표준화가 가장 시급한 것으로 보인다. 이에 본 논문에서는 BIM을 국내 전기설계시장에 조기 정착시켜 모든 용역에 대해 BIM을 적용할 수 있는 방안으로써 라이브러리의 표준화 방안에 대해 살펴보고자 한다.

• 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.

• Journal of the Korean Institute of Educational Facilities
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• v.23 no.6
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• pp.11-17
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• 2016

The objective of this paper is to introduce a curriculum for BIM design and explores characteristic of BIM Design. In order to get our approach, conducted by means of BIM throughout an actual experiment by elementary school from Architectural programming, preliminary design to design development and construction drawing. The experiment states that curriculum for BIM design requires systemically to be made in the architectural education. And also schools integrate BIM teaching early into in their curriculum. Some schools claim that BIM is often perceived as stumbling block student' creativity on account of its instant building elements. But this is not so; it all depends on how BIM is taught in the architectural education. The results state that students in the architectural school today is required to learn design by means of BIM early in the first year. Also more importantly, in order to advance the BIM design, a curriculum for BIM design is required to diversely open class in the architectural education.

• Journal of KIBIM
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• v.7 no.1
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• pp.36-44
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• 2017

While previous studies argue that BIM-based assembling collaboration promotes the communication and process management among participants in architectural design projects, it is still unknown which communication and socio-psychological factors are more and less activated in use of BIM-based collaboration. To investigate this research aim, in authentic BIM-used architectural retrofitting projects, the participants (N=36) collaborated and assessed the communication factors on (1) perceiving design results, (2)understanding partners'design intention, (3) proposing and converging opinions, the interpersonal design process management factors on (1) managing design process, (2) managing collaboration schedule, and the complementedness factors on (1) understanding partners' expertise, and comradeship. Statistical analyses reveal that the factor relevant to perceiving design results is better activated than the other factors (p<0.05), but all other factors are not much activated compared to perceiving design results. Deduced from the previous BIM studies and interviews, a reason roots in the shared forms and semantics of BIM. The shared semantics represent collaborators' information and allow the participants to perceive design changes explicitly. Meanwhile, BIM-based assembling collaboration is limited to represent observable, experience-able processes of design, and thus, several key socio-psychological factors, such as proposing and converging opinions and managing design process, are less activated.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2011.04a
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• pp.379-382
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• 2011

최근 건설 산업에서는 BIM 기반으로 건설프로젝트의 설계에서 부터 시공까지의 업무프로세스를 개선하기 위한 다양한 연구가 진행되고 있다. 본 연구에 앞서 건축구조물을 대상으로 구조설계, 구조해석, 상세설계 등을 수행할 수 있는 상용소프트웨어간의 구조 설계정보 교환을 위한 인터페이스 시스템을 개발하였다. 본 연구에서는 인터페이스 시스템을 실제 구조물의 설계 프로세스에 적용하여, 본 시스템에 대한 실무 활용성 및 문제점 등을 언급하는 적용 사례를 보여주고자 한다.

• Journal of KIBIM
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• v.8 no.1
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• pp.33-42
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• 2018

The consistency between a building information model(BIM) and drawings are very important and has a critical impact on the usage of BIM throughout the project life-cycle. The purpose of this study is to develop a checklist for the consistency check between BIM and drawings. In this research, requirements for drawings in the construction documentation phase were analyzed. In generating drawings based on BIM, a checklist can help practitioners confirm what to modify in the BIM model and what to modify in CAD drawings. Finally, it is expected that the work efficiency will be improved by reducing the unnecessary work by distinguishing the elements that can be extracted from the BIM model from the elements that requires additional works when generating BIM-based drawings.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2015.05a
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• pp.215-216
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• 2015

In order to facilitate the introduction of BIM technology in the construction project of fact, many countries such as Singapore and the United States, is developing a roadmap of BIM technology development. To develop this, recently, it must be analyzed in advance the state of BIM technology domestic projects. In this study, we define the elements of technology BIM, and analyzed the current situation. In addition, I was evaluated and priority importance to the elemental technology derived. As a result, elemental technology most was the level inferior to foreign countries, and the field of ordering standard planning and has been highly valued and priority of particular importance, but currently, the level of domestic, analysis and most delayed has been. These results are judged to be useful in the development of the roadmap and direction of technological development of BIM in the future.

• Journal of KIBIM
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• v.9 no.1
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• pp.1-10
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• 2019

In process of creating BIM model for tunnel, many user use still CAD, so the workflow for BIM design is not perfect. Therefore, in this paper, we proposes a method to automatically create BIM model without converting 2D drawings in tunnel design. It can allow engineers to design BIM-based tunnel with maximum use of linear information and modify the BIM model whenever there is changed linear information. To do this, we use Dynamo, which can reduce the time required for creating and modifying BIM models during design changes, saving time wasted for BIM conversion design.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.666-669
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• 2008

Recently, the application of building information model (BIM) is evaluated as one of important issues in construction market through the analyzed results in successful case studies. This study suggests an integrated information management model based on BIM through the problem analysis in existing information model for design phase. The application of suggested model is verified by a case study of bridge project. Those automatic and integrated information models for design phase can be used for an effective information management model through project life cycle.