• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.393-393
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• 2000

FTA(Fault Tree Analysis) is a safety analysis method that focuses on one particular accident or main system failure and provides a method of determining causes of that event. While most of the statistical and cut set analysis have been automated, actual construction of the fault-tree is usually done manually. Manual construction of the fault-tree is extremely time consuming and it requires high level of expertise and experience. In addition to the time involved, different analyst often produces different fault-trees either by incorrect logic or omission of certain events. Automatic fault-tree construction system can be efficient in solving above problems. This study presents a new Digraph-FT conversion algorithm that leads automatic FTA system.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2013년도 춘계학술대회 논문집
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• pp.509-513
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• 2013

There are so many types of construction equipment. Excavator is one of typical construction equipment which is working under the tough and severe environments. It's important for engineers to design CE components by the vibration durability point of view. Traditionally, two typical vibration durability methods to verify the durability of components. The first is experimental method which is using the vibration durability test bench. But experimental approach on vibration durability is needed a lot of cost and time. The second is analytical method which is using the vibration durability analysis such as Dirlik, Stainberg, Lalanne and others methodologies. The one of main advantages on vibration durability analysis can reduce the cost and time. We present a vibration durability analysis process and methodology on the guardrail system in excavator.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2002년도 봄 학술발표회 논문집
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• pp.27-34
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• 2002

In the case of reinforced concrete structures, the knowledge of load transfer in the long-term behavior analysis considering construction sequence is very important. Even though long-term behavior of concrete structures has been widely studied, the studies on the time-dependent axial force variation of shore have been scarce to date. In order to investigate the shore behaviors under actual construction conditions, a three-story test frame was constructed on a construction site. The entire construction schedule for the test frame was made to follow the schedule of an actual three-story frame. To analyze the data collected from the test frame, an analysis method based on the Winkler foundation model was developed. This analysis method accurately Predicts the time-dependent behavior of shore. The analysis results coincide well with those obtained by the Midas GENw program

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 추계 학술논문 발표대회
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• pp.201-202
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• 2019

This paper aimed to identify potential opportunities of building information modeling (BIM) utilization for construction risk management. Construction risk factors and BIM functions were derived through conducting in-depth literature review. Nineteen construction risk factors could be resolved by various BIM functions. Phase planning, site analysis, design authoring, and 3D design coordination were identified as the most efficient BIM functions for construction risk management.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.216-222
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• 2020

This research evaluated the construction market and project environment of nine nations within the ASEAN members. Quantitative data from global consulting firms and international organizations were identified and normalized for evaluation. The result of the analysis was that Indonesia was ranked highest for construction market growth while Singapore was ranked highest for stability of project environment. The research results can be utilized by construction companies that are planning on entering the construction market within the ASEAN members.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.518-522
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• 2015

Green Construction is the construction activities that conserved energy, land, water and material to reduce the negative effect to the environment while assuring essential demand on quality and safety during project construction. This paper critically examine the contribution of awareness and understanding, green construction practices and green construction innovation with the green construction benefits. A measurement model based on the theoretical framework and exploratory factor analysis was developed and tested using structural equation modelling technique. This study employs a survey research methodology involving a total of 346 respondents among construction contractors, developers, clients and consultants in the construction industry. The findings indicate that the awareness and understanding, green construction practices and green construction innovation are significant predictors of the green construction benefits. From the practical perspective, the findings should alert the construction participants on the need of awareness and understanding, green construction practices and green construction innovation towards the green construction benefits. In addition, the findings can be used as diagnostic tool for continuous improvements in the Malaysian construction industry.

• 한국건설관리학회논문집
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• 제14권2호
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• pp.45-55
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• 2013

우리나라 해외건설 누적 수주 금액은 2012년 6월을 기준으로 5,000억 달러를 달성하였으며 더 나아가 2020년 1조 달러를 목표로 하고 있다. 또한 국내 건설기업들도 해외건설시장 진출을 목적으로 여러 전략을 구상하고 있다. 특히, 해외건설시장 진출을 위해서는 시장에 따른 경쟁력을 가져야 할 것이다. 따라서 본 연구에서는 경제 성장과 더불어 정부의 인프라 시설 확충 및 개발 부문의 투자가 증가하고 있는 캄보디아 건축시장의 진출 경쟁력 분석을 연구의 목적으로 한다. 캄보디아 건축시장 진출을 위해 사업유형별 필요 경쟁역량을 IPA기법으로 분석하였다. 분석결과 도급사업에서는 발주정보 및 글로벌 공급역량이 필요한 경쟁역량으로 나타났으며, 투자사업에서는 시장정보, 사업타당성 조사를 포함한 설계이전 단계의 역량 및 글로벌 네트워크가 필요한 경쟁역량으로 나타났다. 본 연구의 결과는 우리 건설기업들이 향후 캄보디아 건축시장 진출 시 필요한 기초자료로 활용되기를 기대한다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.337-340
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• 2007

건설교통부에서는 건설부문의 정보화를 선도하고자 건설CALS를 시작하였다. 건설CALS는 공공건설부문을 정보화하고 건설인의 정보화마인드 정착에 기여하였으며 투자대비 비용절감 효과도 큰 반면, 시스템의 노후와와 개발한 시스템의 확산전략 미수립 등의 이유로 효과가 반감되고 있다. 현 시점에서 건설CALS의 현주소를 정확히 파악하여 향후 나아갈 바를 정립하고 도입효과를 극대화시킬 필요가 있다. 이에 본 연구에서는 전략을 수립하는데 효과가 있는 SWOT분석 기법을 이용하여 건설CALS가 지향해야 할 핵심성공요인을 제시하였다. 이를 위해 문헌조사를 통해 건설CALS를 둘러싼 내${\cdot}$외부환경을 고찰하여 25개의 강점, 약점, 기회 및 위협요인을 도출하였으며 SO, ST, WO, WT 기본전략을 수립하였다. 최종적으로 전략을 달성하기 위한 14개의 핵심성공요인을 제시하였으며, 제시한 요인의 타당성 확보를 위해 건설 각 분야의 전문가에게 검증하는 절차를 거쳤다. 이 연구에서 제시한 결과들은 향후 건설CALS가 나아갈 이정표를 제시하는데 의의가 있다. 성공요인 달성을 위한 중점 추진분야 선정, 세부연구과제 도출 등의 후속연구가 지속적으로 수행되어야 한다.

• 한국문헌정보학회지
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• 제56권4호
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• pp.205-222
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• 2022

본 연구는 전문지식을 갖지 않은 건설기술자와 건설사업 참여자가 건설 실무에서 중요도가 높은 단어와 단어 간의 상호 연관관계를 쉽게 이해할 수 있도록 정보서비스를 개선하고자 하였다. 이를 위해 텍스트마이닝과 네트워크 중심성을 이용하여 건설기술정보시스템에서 가장 많이 사용하고 있는 기술정보, 사례정보 및 원가절감 등 건설실무정보에 대해 단어의 출현 빈도, 주제 모형화, 네트워크 중심성을 분석하였다. 이러한 분석을 통해 도로, 포장, 교량, 터널 등 도로공사와 관련한 설계, 시공, 사업관리, 시방·기준, 유지관리 등이 건설 실무에서 중요한 정보로 파악되었다. 또한, 연결 중심성과 고유벡터 중심성 측정을 통해 중요도가 높은 단어 간의 상관도를 분석하였다. 상관도 분석을 통해 기술정보를 확충한다면 보다 유용한 정보를 제공할 수 있다는 결과를 얻었다. 끝으로, 연구 결과가 갖는 제약과 이에 따른 추가적인 연구를 제시하였다.

• Earthquakes and Structures
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• 제23권6호
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• pp.493-502
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• 2022

In recent decades, infrastructural development has exploded, particularly in the coastal region of Saudi Arabia. The rising demand of most consumed aggregate in construction can be effectively compensated by the alternative material like scoria which lavishly exists in the western region. Scoria is characterized as lightweight aggregate beneficially used to develop lightweight concrete (LWC) - a potential alternative of normal weight concrete (NWC) ensuring reduction in the structural element's size, increase in building height, comparatively lighter foundation, etc. Hence, the goal of this study is to incorporate scoria-based structural lightweight concrete and evaluate its impact on superstructure and foundation design beside contributing to the economy of construction. Fresh, mechanical, and rheological properties of the novel LWC have been investigated. The structural analyses employ the NWC as well as LWC based structures under seismic and wind loadings. The commercial finite element package - ETABS was employed to find out the change in structural responses and foundations. The cost estimation and SWOT analysis for superstructure and foundation have also been carried out. It was revealed that the developed LWC enabled a more flexible structural design. Notable reduction in the steel and concrete prices of LWC might be possible in the low-rise building. It is postulated that the cost-effective and eco-friendly LWC will promote the usage of scoria as an effective alternative in Saudi Arabia and GCC countries for structurally viable LWC construction.