• 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.

• 건설관리
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• 제16권6호
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• pp.45-49
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• 2015

• 한국CDE학회논문집
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• 제19권3호
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• pp.263-271
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• 2014

Recent AEC industry, is introducing BIM based design process which mainly focuses on collaboration and integration. Since BIM has characteristic of utilizing several design libraries in various fields across the AEC industry, obtaining BIM libraries are essential for introducing and applying the BIM successfully. Thus, creating BIM libraries and guidelines for various fields are needed. BIM libraries can be categorized into disciplines such as architectural, structural, mechanical and electrical industries. Especially, companies in mechanical industry possesses design data for creating BIM library. Due to the fact, we standardized the property information for BIM libraries. And for BIM library production, we have developed a program which uses neutral format to convert 3D MCAD data designed by $NX^{TM}$ into $Revit^{TM}$ Family. Finally, we developed a program that merges property information to Revit Family file.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.616-623
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• 2013

One of the oldest, most common engineering problems is measuring the dimensions of different objects and the distances between locations. In AEC/FM, related uses vary from large-scale applications such as measuring distances between cities to small-scale applications such as measuring the depth of a crack or the width of a welded joint. Within the last few years, advances in applying new technologies have prompted the development of new measuring devices such as ultrasound and laser-based measurers. Because of wide varieties in type, associated costs, and levels of accuracy, the selection of an optimal measuring technology is challenging for construction engineers and facility managers. To tackle this issue, we present an overview of various measuring technologies adopted by experts in the area of AEC/FM. As the next step, to evaluate the performance of these technologies, we select one indoor and one outdoor case and measure several dimensions using six categories of technologies: tapes, total stations, laser measurers, ultrasound devices, laser scanners, and image-based technologies. Then we evaluate the results according to various metrics such as accuracy, ease of use, operation time, associated costs, compare these results, and recommend optimal technologies for specific applications. The results also revealed that in most applications, computer vision-based technologies outperform traditional devices in terms of ease of use, associated costs, and accuracy.

• 한국디지털건축인테리어학회논문집
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• 제9권1호
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• pp.83-90
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• 2009

Building Information Modeling (BIM) has the great possibility of transforming the AEC industry. BIM will require increased information exchange and mutual collaboration between all stakeholders. BIM implementation and such increased collaboration can affect legal issues and contract provisions. And some legal issues accompanying BIM Implementation will be raised while a large change also comes in responsibility and role between all stakeholders. However, current standard agreement system is based on fragmented agreement between the architect and the owner, and between the owner and the contractor. Another legal obstacles and considerations associated with BIM implementation will be arose from BlM technology and use of BIM. AEC professionals in Korea have long utilized the standard agreement forms as well and look forward complementation of current standard agreement for BlM implementation. Such complement direction for the standard agreement will be examined by investigating the legal issues and overview comparison between AlA E202 and ConsensusDOCS 301.

• 국제초고층학회논문집
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• 제3권4호
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• pp.279-283
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• 2014

This paper introduces two platforms created by the development team at CORE studio, Thornton Tomasetti's global innovation studio. Collaborative platforms change the way that parties communicate and develop projects. Wikipedia is one of many great examples for a platform that supports collaborative development of a product - the world's largest encyclopedia. In the AEC industry, no such platform exists that can be used for collaborative development of a building project, and hence, information exchange between the parties involved, and modeling programs used in a project is slow and opaque. The platforms introduced in this paper allow for much greater transparency at all stages of the building design process, and hence improve the flow of information between parties involved in the process, both firm-internal and external. While traditionally, the use of a large number of different modeling and analysis platforms is hard to manage by a project team; this paper introduces methods that strengthen the design process by using a multitude of programs needed in the different building design phases.

• 방사선산업학회지
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• 제12권4호
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• pp.287-290
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• 2018

Nowadays, diseases related with breast are increasing rapidly and because of this high quality of resolution images is required to get clear detail specially for early detection and diagnosis. It has a tendency to use digital equipments than analog one in clinic. In this experiment, DR, CR, and Film are used for the resolution applied by AEC. Resolution phantom in DR was $7LP{\cdot}mm^{-1}$ in both verticality and horizontality. In CR, however, it was $6LP{\cdot}mm^{-1}$ in both which was lower this standard. The resolution stayed in range of standard in Film but it showed differences between $11{\sim}14LP{\cdot}mm^{-1}$ Overall, the difference of resolution was displayed Film, DR and CR, in order, which means the study is needed for more high quality of digital images.

• 한국산학기술학회논문지
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• 제18권1호
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• pp.287-294
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• 2017

국내 AEC 산업 분야에 2000 년대 중반부터 그 적극적인 도입이 시작된 BIM 기술은 최첨단 건축, 초대형 건축, 비정형 건축 등을 중심으로 그 도입이 가속화 되어 왔다. 건물 구축 기술의 부족으로 의해 완공률이 낮았던 비정형 건축물들이 BIM 기술의 도입으로 많은 구축 성공 사례가 생기면서 건축가들이 비정형 건축 설계에 활발히 도전하고 있다. 그러나 비정형 설계가 가능한 모델러들은 설계, 시공, 유지관리 등에서의 데이터 관리가 효율적인 BIM 데이터의 구축이 어렵다. 그러므로 본 연구에서는 비정형 모델러에서 생성된 건축 부재 데이터의 BIM 데이터로의 변환 프로세스를 제안하였다. 제안된 프로세스 모델은 비정형 건축 부재를 형성하기 위한 형성 조건 수신부, 건축부재 생성부, 그리고 BIM 데이터 생성부 세가지 부분으로 구성된다. 구체적으로는 NURBS 기반 모델러에서 비정형 슬라브, 기둥, 보 파라메트릭 건축 부재 형성과 BIM 도구로의 데이터 전이 및 BIM 건축 부재 데이터 형성을 위한 프로세스 모델을 제안하며, 이를 실현하기 위한 프로토타입 시스템이 구현되었다.

• 한국BIM학회 논문집
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• 제2권1호
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• pp.7-17
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• 2012

건설 프로젝트의 정보를 프로젝트 참여자들이 공유하고 활용하는 것은 건설 프로젝트의 성공적인 수행 을 위한 중요한 요소로 작용한다. 최근 프로젝트 참여자들의 효과적인 정보의 공유 및 활용을 위한 도구로써 BIM에 관심이 집중되고 있다. BIM은 건설 프로젝트의 초기 계획 설계에서 유지관리 단계까지 프로젝트 참여자들이 필요로 하는 정보를 제공함으로써 프로젝트의 전체 생애주기 동안 활용 가능하다. 그러나 잦은 설계변경, 기존 도면의 분실 등으로 인하여 수행 중이거나 완공된 건설 프로젝트의 정확한 정보를 포함한 BIM의 획득이 어려워 시공 및 운영 단계에서 BIM 활용이 이루어지지 못하는 실정이다. 따라서 해외에서는 BIM 활용의 한계를 극복하고 건설프로젝트 전반에서 BIM을 활용하기 위하여 수행 중이거나 완공된 건설 프로젝트의 현장정보를 포함하는 BIM 구축을 위한 연구가 활발하게 진행되나 국내에서는 관련 연구가 매우 부족한 실정이다. 이에 본 연구의 목적은 건설 프로젝트의 시공 및 유지관리 단계에서 활용이 가능한 첨단센서 기반의 BIM 구축에 대한 필요성 제시에 있다. 이를 위해 본 연구에서는 먼저 국내 BIM 활용에 대한 문헌 연구를 통해 국내 BIM 활용의 문제점을 도출하였다. 문제점을 해결하기 위한 방법으로 첨단센서 기반의 BIM 구축을 제안하였으며, 관련 연구 고찰을 통해 향후 연구 방향을 제시하였다.

• Journal of Construction Engineering and Project Management
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• 제7권3호
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• pp.26-38
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• 2017

The architecture, engineering, and construction (AEC) industry is yet to formulate a holistic strategy to realign the evolving technological infrastructures with organisational ambitions and adaptive knowledge of the workforce. This study attempts to create an understanding of the underlying processes adopted by technology-enhanced construction organisations to disseminate and maintain knowledge within the workforce in order to keep pace with the evolving construction technologies. The study adopted expansive learning and adaptive expertise constructs to help better explain workplace learning support structures for organisational effectiveness in a turbulent situation. The two theories were tailored to empirically evaluate three case study construction organisations that have embarked on technology-enabled organisational changes. The study concluded on the creation of a facilitating workplace learning environment to enable the workforce to adapt into and resolve any inherent contradictions and cognitive ambiguities of the changing organisational conditions. This could ensure that novel and conflicting features of the emerging technologies can be adapted across the myriad multi-functional project activities in order to expand the frontiers of the technological capabilities to address the eminent issues confronting the AEC sector.