• Proceedings of the Computational Structural Engineering Institute Conference
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• 2009.04a
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• pp.573-577
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• 2009

최근 건설업계에서는 3D객체기반인 Building Information Modelling(이하 BIM)에 대해 관심이 증가하기 시작했다. 하지만 BIM도입에 어려움을 격고 있는 것이 현실이며 특히 전통적인 정보교환 방식에서의 BIM을 적용하는데 가장 큰 어려움을 격고 있다. 현재 국내에 활용되는 전자도면 표준지침에는 BIM도입에 필요한 2D표준에 대한 내용은 없으며, BIM소프트웨어들도 이 부분에 대해서 충분히 커스터마이징 되지 않았다. 이는 BIM과도기에 2D도면의 필요성을 인식한다면 원할한 BIM도입을 위해서 반드시 그 대안이 필요하다. 따라서 본 논문에서는 국내 BIM 도입 시 국내 2D 전자도면표준을 고려한 BIM 모델에서의 원할한 2D도면추출에 대해 Template을 활용하는 방안을 제안하였다. 도면표준의 기준은 "건설CALS/EC 전자도면 작성 표준"에 근거 하여 표현기준 및 데이터 작성기준을 Template파일에 적용 시켰으며, 이 후 실험을 통해 BIM 도입 시 효율적인 도면 생산의 가능성을 확인 하였다.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.36 no.3
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• pp.147-154
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• 2023

In the case of river facilities, the management of this information differs depending on national and regional rivers, therefore, there is no integrated management in place. There is concern about the loss of facility information owing to the insufficient accumulation of information during their design and construction stages. Additionally, as a result, the utilization level of facility information during the maintenance and operation stages is insufficient. To ensure effective maintenance and operation of river facilities, it is necessary to secure data consistency and increase efficiency by organizing facility information according to a standardized classification system. This study proposes a strategy for implementing the BIM standard classification system in the river sector, considering facility characteristics. The goal is to introduce a BIM information model for 3D-based river facilities, and enable efficient maintenance and operation conversion.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.3
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• pp.1467-1473
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• 2013

In construction project, it is important to exchange and share the digital information generated by their own professional softwares. So this paper analyzed the information delivery requirements of steel structure according the structural design stages using IDM methodology. For schematic design stage and detailed design stage, the structural design information to share in each design stages is abstracted by defining the PM, ER, and FP. The new ERs and FPs are proposed by defining the new property sets(Psets), suchlike bolt gauge line, weld, scallop, and cope, to complement the structural design information of $IFC2{\times}3$. Finally, the reasonability of the proposed new ERs, FPs are verified by applying them to represent the standard steel connection sample in detailed design stage. As a result, the structural design information of standard steel connection could be stored and managed sufficiently by using the proposed new ERs and FPs.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.35 no.3
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• pp.707-714
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• 2015

The national government is pushing hard the adoption of the BIM (Building Information Modeling) technology in the construction industry. The BIM application provides a visualized environment where the construction manager can inspect the structure of buidling structures. The application also provides information on activity progresses as well as earned values. However, BIM is mostly applied to visualize a structural object with definite forms. The BIM technology needs to be extended to include an object with non-definite forms such as earthwork operations. The objective of this study is to present a prototype of earthwork BIM in the construction operation. The prototype has been built on the attributes of geological information, construction equipment and positioning. The prototype of earthwork BIM shows a 3D graphic simulation of construction equipment moving around for digging and loading.

• Korean Journal of Construction Engineering and Management
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• v.14 no.3
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• pp.88-96
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• 2013

Recent proliferation of building information modeling (BIM) has actively stimulated integrated utilization of geometric (graphic) and non-geometric (non-graphic) data. Nevertheless, physically and logically, linking and maintaining these two different types of data in an integrated manner requires enormous overhead efforts for practical implementation. In order to address this problem, this paper proposes a concept and structure of the object breakdown structure (OBS) that facilitates advanced BIM implementations in an automated and effective manner. Proposed OBS numbering system has secure rules for organizing graphic objects in full considerations of effectively integrating with non-geometric data (e.g. cost and schedule). It also removes repetitive linking process caused by design changes or modifications. The result of applying this concept to a housing project revealed that only 120 definitions controled over 6,000 graphic objects for full integration with cost and schedule functions.

• Korean Journal of Construction Engineering and Management
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• v.14 no.2
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• pp.184-193
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• 2013

Procurement System for Korean construction industry has mainly been controlled by the complicated regulatory system which has been recognized as unflexible and remotely separated from the global standard. This has been identified by many Korean construction experts as one of the main reasons that hamper the Korean construction industry becoming the global leader. One commonly discussed regulatory system is the compulsory multiple contracting system that has been enforced for a long time. According to the Korean governmental contracting law 68-3, all construction projects cannot be divided into separate contracting packages with a few exceptions. Exceptions stated in the law include construction activities related electrical, Information communication, fire-fighting, and cultural assets which all are governed by the separate laws/acts controlled by the different governmental bodies. This research is to closely investigate multiple prime contracting system that has been compulsory in Korean construction industry and to provide policy recommendations to these restrictions. Although, there has been a long history of this compulsory contracting system, this study attempted to provide objective analysis on current status of the system as well as global standard on the issue. This study suggests main considerations when considering different contracting system such as rights of owners, flexibilities of regulatory systems, and efficiencies of conducting a construction project. It is envisioned that recommendations from this study, if accepted by the regulatory bodies, would improve the Korean construction contraction system by making it more compatible with global standard. Moreover, these would help making the Korean industry more effective in terms of regulatory restrictions.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.311-314
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• 2008

While relevant fields of construction industry have rapidly changed, the adaptation (skill) level of individuals to apply or utilize them has slowly followed. By understanding how individuals resist and conform under this change of construction industry and which factors are important for the adaptation, much time, effort, and cost can be saved for organization operation and management, and these saved resources will be able to be effectively invested to others. Accordingly, for construction industry it is necessary to understand and study how the users fit into the rapid technological change. Through this research, therefore, a systematic guideline should be created for the relevant fields of construction industry. For this research, the characteristics of individual personalities and behaviors based on the traditional model was observed and factors that contribute to the resistance and their mutual relations were theoretically identified and categorized, and then a conceptual and figurative model to show the mutual relation between the identified resistive factors was suggested.

• Explosives and Blasting
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• v.42 no.3
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• pp.9-22
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• 2024

As buildings constructed in the 1980s during a period of rapid urbanization and economic growth have aged, the demand for demolition, especially of reinforced concrete structures, has increased. In large-scale structures such as industrial buildings, a mixed approach utilizing both mechanical demolition and explosive demolition methods is being employed. As the demand for demolition rises, so do safety concerns, making structural stability during demolition a crucial issue. In this study, drones and LiDAR were used to collect actual structural data, which was then used to build a simulation model. The analysis method employed was a combination of the Finite Element Method (FEM) and the Discrete Element Method (DEM), known as the Combined Finite-Discrete Element Method (FDEM), which was used to perform dynamic structural analysis during various demolition phases. The results were compared and analyzed with the commercial software ELS to assess its applicability.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.441-444
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• 2008

메가프로젝트(Mega-Project)는 다양한 유형의 시설군을 복합 개발하는 건설사업으로서 규모가 크고 복잡한 경우가 많기 때문에 종합적인 사업관리에 어려움이 따른다. 따라서 메가프로젝트는 기존의 단위프로젝트 수준이 아닌 프로그램 수준에서의 관리체계를 필요로 하며 그에 적합한 업무분류체계(WBS)를 구축해야 한다. 업무분류체계는 사업관리를 위한 전체적인 구조를 수립하는 기반으로서, 현재 프로그램 관리 수준의 업무분류체계의 기준이 갖추어지지 않은 상황이다. 이에 본 연구에서는 메가프로젝트를 위한 업무분류체계기준(WBS Basis)를 개발하여 메가프로젝트의 업무분류체계 구축을 지원하고자 한다. 메가프로젝트 생애주기에 포함되는 전체 시설군, 업무 및 용역, 기록문서, 정보 등을 대상으로 하였으며, 기존 사례분석과 관련 분류체계들을 바탕으로 초안을 작성하였다. 이후 현장시험을 통한 검증을 거쳐 최종 업무분류체계기준을 완성하였고 분류내용과 활용방안을 소개한다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.708-711
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• 2008

This study is intended to build research for ways to utilize material information in the design and working business for public works. The contents and results of this study can be classified into object-oriented DB application to bridge construction and object-oriented DB utilization of civil material information. First, application of object-oriented DB to bridge construction 1) constructs the work unit of classified work table as an object(Each object constructs material information on the statement of quantity calculation as data), 2) constructs object-oriented DB for superstructure and substructure of PSC Beam bridge, 3) leads to the research for ways to utilize materials by developing 3D bridge prototype with REVIT structure. Secondly, ways to utilize object-oriented DB for civil material information identified the possibility for utilizing it in making 2D drawings for design work, preparing materials list, analyzing structure for working businesses, selecting and purchasing materials, managing process and maintaining. It is suggested that the results of this study should be applied to all bridge constructions through test-bed and additional studies so as to secure the credibility of the results of this study.