• Journal of the Korea Institute of Building Construction
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• v.22 no.5
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• pp.451-462
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• 2022

The objective of the study is to establish a BIM modeling of precast concrete(PC) shear wall with various wall-to-base connections. The family library of PC shear wall was established in BIM program using component function in a IFC(Industry foundation classes) file format and SketchUp program. From the BIM program, the amounts of concrete, reinforcing bars and steel materials as well as the interference of arranged reinforcing bars can be accurately evaluated in the PC shear walls with spliced sleeves, bolt, or welding plate connection methods. Although the additional metallic materials such as steel plates, bolts, and nuts were used in the PC shear walls with welding plate connection method, their amounts of materials, economic efficiency, and environmental impact were similar to those with spliced sleeve connection. Consequently, the bolt or welding connection is a highly applicable method as wall-to-base connection of PC shear walls, and it was a more useful method than spliced sleeve method, particularly considering the constructability.

• Journal of KIBIM
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• v.1 no.2
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• pp.12-18
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• 2011

The BIM techniques which manages information over the life cycle of construction project based on the 3-dimensional model are developing in the direction of integrated construction management including planning, design, analysis, estimation, 3D simulation and so on. The estimation model based on the BIM has different detail level and model information. In this study, the LOD of estimation model is catched for the bridge structures. The library classes are defined with construction information classification system, and the quantities of resources are calculated by class parameter using Microstation API. Finally, the automated estimation system using BIM based library is verified by the integrated model for adjustments of level of detail.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.450-453
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• 2003

It is very important to examine and compare initial plan with earned value repeatedly in construction. For this purpose, progress measurement, which reflects the actual progress correctly, is required and it is necessary that accurate field data should be offered. To measure the progress, the entire project mutt be divided into unit works that have an accurate scope of work, and required information must be distributed to the all parties. Under the circumstances of domestic construction industry which focus on the specifications, progress measurement needs to reflect the information of schedule as well as cost that includes the quantity of unit work and construction expenses. Therefore this research proposes weighted method of progress measurement based on the information of cost and schedule.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.267-268
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• 2024

한국통합 물류협회에 따르면 총 택배 물량은 2020년은 약34억 개, 2021년은 약36억 만 개로 매년 꾸준히 성장하였다. 택배 물류센터에서 택배를 고객에게 전달시키기 위해서는 포장, 검수, 진열, 파지, 상차, 하차 등 많은 공정이 필요하다. 고용 인력의 부족, 인건비 상승, 부상의 위험, 높은 노동의 강도 등의 문제가 발생하였고, 소비자들의 입장에서도 제품 손상 또는 배송 지연 등의 여러 가지 문제를 야기해왔다. 본 논문은 로봇과 자율주행 기술을 활용하여 상품의 분류 및 배송과정을 자동화 하는 '스마트 물류창고 시스템'을 제안한다. 컨베이어 벨트를 이용해 택배물품의 분류를 자동화하고 자율주행 차량을 통해 배송을 하게 되고 DB를 통해 물품을 관리하게 되어 효율적인 운영을 가능하게 하고 경제적 손실을 줄인다. 적외선 센서, 바코드 센서를 이용해 컨베이어 벨트 구동 및 물품의 정보를 알 수 있으며 서보모터로 물품을 분류한다. 또한 입출고 차량이 명령을 통해 물품을 자동으로 입고 및 출고하여 DB에게 물품의 정보를 전송한다. 스마트 물류창고 시스템을 통해 인건비 절감, 오 배송, 물품 파손 등이 사라지게 되고 물류창고 뿐만 아니라 다양한 분야에서 적용 할 수 있을 것이다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.513-516
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• 2003

With the size of construction projects getting larger and more complex, the amount of information is increased exponentially. Although there are a lot of construction companies that try to accumulate as-built information from construction sites. it has not been quite satisfactory. This is due to the lack of task information framework that can measure project performance and collect as-built information. Therefore the objective of the paper is to identify the information that can be derived from daily reports and to suggest a unit task information framework to accumulate as-built information.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.22 no.2
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• pp.163-172
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• 2009

BIM technologies based on three-dimensional parametric solid modeling can provide building industries with a wide range of information, and then enable not only to automate architectural drawings, detect clashes between building components, and estimate building materials, but also to manage effectively architectural and engineering information about building spaces, structures, energy, just-in-time delivery, facility management, and code checking. This paper presents an implementation to extract geometric data from IFC files, and validates the system with simple and complex buildings.

• Journal of Korea Spatial Information System Society
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• v.11 no.4
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• pp.74-84
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• 2009

GIS based new postal marketing method is presented in this paper with spatiotemporal mining to cope with domestic mail volume decline and to strengthening competitiveness of postal business. Market segmentation technique for socialogy of population and spatiotemporal prediction of consumer propensity to purchase through spatiotemporal multi-dimensional analysis are suggested to provide meaningful and accurate marketing information with customers. Internal postal acceptance & external statistical data of local districts in the Seoul Metropolis are used for the evaluation of geo-lifestyle clustering and spatiotemporal cube mining. Successfully optimal 14 maketing clusters and spatiotemporal patterns are extracted for the prediction of consumer propensity to purchase.

• Bulletin of the Society of Naval Architects of Korea
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• v.30 no.2
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• pp.44-52
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• 1993

선박에 있어서 철의장품은 종류와 수량이 다양하고 형상이 불규칙하여 대부분의 사업장에서 설계 전산화가 이루어지지 못하고 있는 실정이다. 의장설계실에서는 이를 전산화하기 위하여 먼저 철의장품의 표준을 제정 및 극대화하고 설계작업절차와 물량의 흐름을 전산과 연계하여 체계화 및 표준화하였다. 또한 선박의 전구역에 설치되는 철의장품들을 관련 양식과 함께 국제표준을 근거로 BASICA CADDS, SURFACE DESING, SDDP(structural Design ＆ Detailing Package) SOFTWARE를 이용하여 2차원(2-dimension) 및 3차원(3-dimension) 데이터베이스(database)화 하였으며 이를 POP-UP MENU를 이용, 쉽게 선택함으로써 모델링(modeling) 작업시수를 대폭 감소 시켰으며, 그래픽(graphic)에서 추출한 의장품의 데이터(data)를 의장품의 표준정보 FILE과 연계하여 라벨(LABEL) 및 치수(DIMENSION)를 기입하여 배치도를 추출하고 의장품의 제작, 설치, 계산 및 관리에 소요되는 설치도, 제작도 및 관련 보고서인 BOM(bill of material), PML(pallet material list), 의장제작품 LIST, COG(center of gravity), 관리점 등을 자동추출 및 관리전산망(PC-lan)과 연계할 수 있는 DECOM(철의장 전산설계 전용 package)을 89년에 개 발하여 의장설계에 적용하여 왔으며 ORACLE사의 RDBMS(relational database management system)를 도입하여 이를 보완하므로써 정보의 일관화 및 공유화가 가능하게 되었다. 그 결과 설계 M/H절감, 생산성 향상, 자재 및 관련 정보 전달에 혁신적인 변화 향상을 가져오게 되었다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2001.10a
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• pp.757-760
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• 2001

Korean shipbuilding industry increased a considerable amount of orders recently. It is time to build up the concept of Digital-Ship, and develop the fundamental technology to operate or manage an oceanic vessel safety and also economically for the world shipping industry, now. In this paper, all sorts of low-ranked devices, system components, integrated protocol, and ship-shore supporting system, which shares information between ship and shore by utilizing a low-orbit satellite communication will be described.

• Journal of the Korea Institute of Building Construction
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• v.22 no.2
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• pp.195-205
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• 2022

This paper aims to propose a cost-based mechanical, electrical, and plumbing(MEP) coordination process using building information modeling(BIM). The proposed process can help project participants eliminate identified clashes between the MEP elements, analyze trends relating to MEP costs during the coordination process, and share their findings. MEP quantity-related information extracted through BIM was integrated with the cost database and schedule information. To check the applicability of the proposed process, it was applied to a construction project in South Korea. Through the application of the proposed process, MEP-related cost was reduced.