• 교육시설 논문지
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• 제23권6호
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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.

• 한국CDE학회논문집
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• 제15권4호
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• pp.289-296
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• 2010

Energy consumption by buildings accounts for a large part of the world‘s energy consumption. Methods to analyze building energy consumption before construction have been studied for decades. With BIM (Building Information Modeling) technology, architects can easily export building information to data models in order to analyze the design‘s effect on building energy efficiency. Although several BIM-based energy simulation applications are currently available, utilizing these applications for energy efficiency simulation is difficult. In this paper, by comparing existing BIM-based energy applications, the authors test the building energy efficiencies estimated by some BIM models, offer ideas and solutions to problems that appeared during the test process and propose new methods for BIM-based energy evaluation based on quantitative factors.

• 국제학술발표논문집
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• The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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• pp.167-175
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• 2017

Building Information Modeling (BIM) comes to be implemented into architectural design, construction, and maintenance in Japan in order to convert design information thoughout a construction project. However, various problems are taking place in data transaction. It is not also clear about the role and the responsibility of the architects and the enginners in charge.There is a movement to establish a BIM manager as a general coordinator concerning BIM in Singapore and other countries, though it is not yet popular in Japan. This paper deals a BIM manager as a new profession in a construction project. The function and skills necessary to a BIM manager is analyzed, and the strategy of Japanese general contractors is discussed. General contractors from Japan are operating BIM in Singapore compatible with open system of supply chain. This style is different from the one in Japan even they belong to the same company. In this paper it is analyzed based on the survey in detail.

• 한국BIM학회 논문집
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• 제6권3호
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• pp.49-56
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• 2016

As project opportunities for the Architecture, Engineering and Construction (AEC) industry have grown more complex and larger, the utilization of Building Information Modeling (BIM) technologies for three-dimensional (3D) design and simulation practices has been increasing significantly; the typical applications of the BIM technologies include clash detection and design alternative based on 3D planning, which have been expanded over to the technology of construction management in the AEC industry for virtual design and construction. As for now, commercial BIM software has been operated under a single-user environment, which is why initial costs for its introduction are very high. Cloud computing, one of the most promising next-generation Internet technologies, enables simple Internet devices to use services and resources provided with BIM software. Recently in Korea, studies to link between BIM and cloud computing technologies have been directed toward saving costs to build BIM-related infrastructure, and providing various BIM services for small- and medium-sized enterprises (SMEs). This study addressed development of the usage metering functions of BIM software under cloud computing architecture in order to archive and use BIM data and create an optimal revenue structure so that the BIM services may grow spontaneously, considering a demand for cloud resources. For the reason, we surveyed relevant cases, and then analyzed needs and requirements from AEC industry. Based on the relevant cases, customizing for cloud BIM and design for the development was performed. We also surveyed any related-law to support cloud computing-based BIM service. Finally, we proposed herein how to optimally design and develop the usage metering functions of cloud BIM software.

• 한국CDE학회논문집
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• 제20권2호
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• pp.210-219
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• 2015

As various contractors have been asking BIM data in the construction industry, BIM guidelines and standards has become increasingly important these days. Above all, BIM guidelines should be established properly because it is utilized at the earliest stage of BIM data creation. However, each of the existing BIM guidelines was totally different by contractors, disciplines or phases so that it caused problems about repetitious work, inefficient management and so on. In order to overcome these problems, we suggest integrated management system for BIM guidelines. We firstly collected and analyzed existing guidelines, secondly standardized guideline phrases and lastly constructed data structure of integrated management system. This integrated management system is expected to increase work efficiency to avoid working error for designers and enable easy creation or revision of BIM guidelines for contractors.

• 한국BIM학회 논문집
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• 제8권1호
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• pp.56-62
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• 2018

There exists no precedented case of quantity take-off, using parametric modeling, from BIM-based irregular structures. Civil 3D provides earthwork quantity take-off based on surface modeling. Generally, designers should enter data into the specification additionally after extracting quantity estimation from earthwork modeling design. The objective of this report is to suggest the method from quantity take-off to specification of BIM-based earthwork quantities. We intend to investigate earthwork take-off method by Civil3D and explain why parametric information extraction is required for quantity estimation and specification and how information of earthwork quantity based on solid and surface modeling is connected to open quantity take-off module. It is highly expected that this suggestion would be the practical methodology of earthwork quantity take-off and specification in the field of civil engineering.

• 한국CDE학회논문집
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• 제19권3호
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• pp.224-235
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• 2014

Recently, Productivity of the construction industry has been decreasing than other industries. Because of this, BIM is being spread in the construction industry. However, quality criteria for BIM data is insufficient. Regulation information is an important factor for initial architectural design evaluations. However, building code and related regulation are numerous. National building code structure in Korea is much more complex than other countries. The purpose of this study is to suggest the typology method of building code and apply to real regulations. To achieve this purpose, the authors have extracted required information to from original regulation for code checking and suggested mapping methods between extracted information and information of IFC scheme. In addition, the authors have represented EXPRESS-G diagram for extracting information from IFC scheme and suggested code checking method through stair case. Output of this study can be used as a base line data for automated code checking system based on open BIM. Automated code checking system will be utilized in architectural design evaluations and supported to increase design quality. It can be used to mount in SEUMTER that is the construction administration system of Ministry of Land, Infrastructure and Transport (MOLIT).

• 한국BIM학회 논문집
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• 제9권2호
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• pp.1-10
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• 2019

In this research, schedule optimization is defined as balancing the number of workers while keeping the demand and needs of the project resources, creating the perfect schedule for each activity. Therefore, when one optimizes a schedule, multiple potentials of schedule changes are assessed to get an instant view of changes that avoid any over and under staffing while maximizing productivity levels for the available labor cost. Optimizing the number of workers in the scheduling process is not a simple task since it usually involves many different factors to be considered such as the development of quantity take-offs, cost estimating, scheduling, direct/indirect costs, and borrowing costs in cash flow while each factor affecting the others simultaneously. That is why the optimization process usually requires complex computational simulations/modeling. This research attempts to find an optimal selection of daily maximum workers in a project while considering the impacts of other factors at the same time through OPEN BIM based multiple computer simulations in resource leveling. This paper integrates several different processes such as quantity take-offs, cost estimating, and scheduling processes through computer aided simulations and prediction in generating/comparing different outcomes of each process. To achieve interoperability among different simulation processes, this research utilized data exchanges supported by building SMART-IFC effort in automating the data extraction and retrieval. Numerous computer simulations were run, which included necessary aspects of construction scheduling, to produce sufficient alternatives for a given project.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2010년도 정기 학술대회
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• pp.361-364
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• 2010

본 연구에서는 최근 건설산업의 대형화, 복잡화 등으로 인해 설계와 시공의 불확실성 증가로 대두되고 있는 개방형 BIM 환경에서의 품질검토를 관점으로 표준적인 검증 프로세스에 활용되고 있는 표준 포맷인 IFC를 기반으로 호환성을 시험하였다. 개방형 BIM기반의 품질 검토는 물리정보 품질, 논리정보 품질, 데이터 품질로 구분할 수 있으며, 본 연구에서는 각 품질 검토의 구분에 따라 다양한 측면으로의 호환성 시험을 수행하였다. 그에 따라 호환성 시험 결과를 도출하고, 현 상황의 문제점 및 해결방안을 제시하여 향후 효율적인 개방형 BIM 환경에서의 품질 검토를 위해 필요한 요구 조건 및 적용 방향을 제시하였다.

• 한국강구조학회 논문집
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• 제22권1호
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• pp.99-108
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• 2010

본 연구는 구조상세설계와 모델링 단계에서 활용 가능한 철골 접합부 모델링 자동화 모듈의 개발을 목적으로 한다. 이를 위해 접합부의 구조해석 결과를 3D 모델링의 입력 변수와 표준접합상세지침을 고려하여 라이브러리 D/B로 구축하였다. 구축된 라이브러리 D/B를 접합부 3D 모델링 단계에서 활용하기 위하여 상용 S/W에서 제공하는 OpenAPI 함수를 이용하여 접합부 자동 생성 모듈을 개발하였다. 개발된 모듈을 검증하기 위해 6층 규모의 철골 오피스 구조물을 대상으로 접합부 모델링을 수행하였으며, 접합부 모델링 과정에 대해 기존 프로세스와 연구 프로세스의 비교를 통해 적용성과 효율성을 검증하였다.