• 한국건설관리학회논문집
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• 제2권3호
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• pp.101-109
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• 2001

벽식 구조 공동주택(고층아파트)은 수평, 수직구조체가 동일하게 연속되므로 시스템거푸집 시공이 효율적이다. 그런데 현재 많은 고층 건축물 시공현장에서 사용되고 있는 시스템 거푸집은 전용횟수의 증대와 콘크리트 품질향상의 장점을 가지고 있지만, 공장 제작되어 현장 반입된 후 2차 조립 과정중의 공기지연 및 시공초기의 인력과다투입 등으로 초기 계획공정달성에 많은 애로점을 가지고 있다. 이러한 측면에서, 각각의 노무자들이 실제 생산적인 작업에 소비하는 시간 비율과 공사지연의 정도 및 원인 등을 평가대상으로 생산성 저하의 원인을 찾아내어 개선방안을 찾아보고자 한다. 본 연구는 시스템거푸집 공정을 수행하고 있는 아파트 신축현장을 선택하여, 다양한 생산성 분석방법 중의 하나인 워크샘플링(Work Sampling)를 통하여 생산성을 분석한 후, 크루발런스스터디(Crew Balance Study)를 통하여 생산성 향상방안을 현장조립공정과 내부 폼(form)작업, 외부 폼(form)작업으로 구분하여 제시하였다.

• 한국건설관리학회논문집
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• 제9권5호
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• pp.186-193
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• 2008

흙막이를 지지하는 버팀대를 가설재가 아닌 주(主)구조체로 이용하는 SPS(Strut as a Permanent System) 공법이 개발되어 최근 국내 공사현장에서 활발하게 활용되고 있다. 이 공법은 건축공사 현장에서 원가절감, 공기단축, 구조적 안정성 향상, 건설환경 개선 등 다양한 이점을 주는 반면 지하층고의 증가와 철골부위 내화피복을 추가로 수행하여야 하는 문제점이 있다. 지하층고의 증가는 흙막이 깊이 및 지하 최저부위 굴착량 증가의 문제점을 유발하고, 내화피복 공사는 공사환경을 열악하게 함은 물론 공사비 증대의 요인이 된다. 따라서 본 연구는 SPS 공법의 문제점을 개선한 모듈화된 철골철근 복합 구조시스템(modularized hybrid structure system)을 제안하는 것을 목적으로 한다. 제안된 공법은 구성원리와 함께 실험을 통하여 구조적 성능을 검증되고 다양한 공사조건을 만족시키는 시공성능이 분석된다.

• 산업경영시스템학회지
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• 제27권1호
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• pp.57-63
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• 2004

Evaluating a project is one of the key activities in managing projects, and thus it should be implemented as a part of the entire project management system. However, currently deployed systems suffer from deficiencies such as the lack of supporting distributed environment and integrity problems. Web service technology, which enables applications to work inter-operatively under a distributed computing environment, is said to solve such problems. In this paper, the web service technology is applied to evaluation management systems. The process of evaluation is designed based on the web service, data is modeled and a pilot system is implemented to test the feasibility of the technology to the domain of project evaluation.

• 디지털산업정보학회논문지
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• 제5권2호
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• pp.39-49
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• 2009

In this paper, we classify web-based social network into two types: open and community, and model user behavior in social activities. After that, we also propose the combination of instant messaging and web system as the method of support asynchronous/synchronous social activities. Furthermore, we introduce ImCoWeb prototype system that supports both asynchronous social activities (ex. social bookmark, comment, rate, and data share) and synchronous ones (ex. real-time communication, file transfer, co-browsing, and co-work). Because it is built on the existing instant messaging, it reduces costs by reusing the facilities such as session management, user management, and security of instant messaging.

• Industrial Engineering and Management Systems
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• 제4권2호
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• pp.207-217
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• 2005

Business mergers are a direct result of rapid changes in the current corporate environment. They are occurring in many industries, including financial institutions. As information systems prove increasingly indispensable in the integration of companies’ business systems, information system integration is becoming increasingly necessary. However, in many cases such integration does not work well. Therefore, this paper proposes a new framework using both IS integration model and IS integration phases to analyze systems failure in IS integration.

• 한국건축시공학회지
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• 제7권3호
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• pp.91-98
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• 2007

Recently a construction industry introduces information that brings about many advantages in the early planning phase, design phase and construction phase. Especially it replaces 2D, 3D systems(usually using explanation of drawing information) ai 4D CAD(offering a sort of 4D-having relation of construction schedule and 3D drawing information). Nevertheless a 4D has these benefits, it has limits which are not only usually using 3D modeling but also limit of making full use of practical affairs because of a lack of connecting varietals of progress of work. To solve these uppermost limits, this research is presenting unified systems to use in risk management which are efficient management of space and non-space information, space analysis, making full use of data base, introducing GIS system of easy interaction.

• 한국통신학회논문지
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• 제22권4호
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• pp.823-832
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• 1997

As enterprises use ATM networks for their private networks and as these private networks use public ATM networks for wide area communication, the need for the customers to be able to manage both private and public networks. Currently, some standardization work is being done towards providing this capability to customers. In this paper, we propose a new customer network management (CNM) system architecture for the management of both ATM a private network and a public network in a uniform way. The particular features of the proposed architecture lies in the efficient support of the complex hierarchial TMN manager-agent relationships at M3 and M4 interfaces, and the support of SNMP and CMIP integration which is necessary for the implementation of a CNM system. The TMN hierarchical many-to-many manager-agent relationships are realized by the utilization of CORBA-Based SMK (Shared Management Knowledge) implementation. We have also implemented the prototype of a ATM CNM system, and measures the performance for the demonstration of the suitability of the proposed architecture.

• 국제학술발표논문집
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• The 10th International Conference on Construction Engineering and Project Management
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• pp.672-679
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• 2024

This study introduces a novel system for the 4D simulation of Building Information Modeling (BIM) objects in mixed reality (MR) environments, addressing challenges of file format compatibility and data management. By developing a system that effectively partitions and manages BIM data, specifically utilizing the OBJ format, the study enables precise simulation of construction project changes over time. This advancement enhances visualization and decision-making in construction project planning and execution. The study highlights the integration of BIM and MR technologies, facilitating enhanced project management and operational workflows. Future work will focus on expanding compatibility with various BIM data formats and MR devices, and integrating AI-based data analysis for more accurate and efficient construction simulations.

• 한국산림과학회지
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• 제3권1호
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• pp.32-35
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• 1963

There are 3 kinds of forest managements: One of them is forest utilization management which collects abundant forest resources by felling the trees: the second of them is scientific forest management which cultivates forest resources; and the last one is emergency aid forest management, needed by the forest resources davastation, for the surposes of soil conservation and preventing the indirect damages. During the 36 years of Japanese occupation, they pillaged 600 to 800 million cubic meters of the forest resources, in the condition of the colonial system. After the emancipation from the Japanese occupation, the national soil conservation work has been practiced for 18 years without correcting the Japanese forest management (which means felling system); therefore the essential in the forest, conservation works is to get rid of imitating the Japanese pillage management so as to turn the direction of the forestry policy to the emergency aid management which means forest investment.

• 한국철도학회논문집
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• 제7권3호
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• pp.223-231
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• 2004

The accumulated BMS data have made it easy to make reasonable decision-making for bride maintenance and repair work. In the developing period of BMS, the bridge management was not easy due to the lack of understanding of BMS and low credibility of the data. In recent years, it has been possible to enhance the credibility of the data and to expand the application scopes of BMS with the efforts of Local Road Construction Offices. The reasonable decision making for bridge management can improve the performance of bridges under the practical constraints such as limited budget. It can then result in the reduction of bridge maintenance budget. This study provides the methodology for the application of mobile internet-based KOBMS for bridge management. The data flow for BMS is the most important factor for decision-making on budget allocation, and this study establishes the basic scheme of the data flow for BMS. The implementation of PDA for BMS may suggest a new paradigm of 'Mobile' in the field of construction management.