• 한국건축시공학회지
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• 제20권2호
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• pp.199-212
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• 2020

In evaluating the competitiveness of construction companies and their development strategies, patents are a useful and objective source of technical information. In this study, the cutting-edge technologies of construction industries of China, Japan, and South Korea were investigated based on the data of patent applications filed by a total of 15 construction companies (five companies from each country). The related technologies were classified into six core technology groups based on their keywords. After that, we used four patent analysis methods: time series analysis, IP (Intellectual Property) emergence level analysis, spiral module analysis, and OS (Object-Solution) Matrix analysis, to identify the promising technologies/vacant technologies for global construction companies in China, Japan, and South Korea, and to analyze the technical competitiveness of the three countries. The findings of this study showed that each country can claim a relative technological advantage over the others. Overall, 3D printing and offsite construction technology, data acquisition technology, AR and VR technology are expected to be promising in the Asian region. The present study contributes to the body of knowledge by expanding our understanding of technological innovation for the competitiveness of companies and the technology development strategies pursued by the construction industries of China, Japan, and South Korea.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 춘계 학술논문 발표대회 2부
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• pp.137-138
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• 2011

This paper aims to analyze the performance of Construction Supervision System that contributed to domestic construction projects in public area with respect to reduction of shoddy constructions and improvement of the quality of construction results. Thus research suggested qualitative and quantitative criteria for assessing outcomes and analyzed the performance of Construction Supervision System based on the result of survey questionnaires.

• 한국구조물진단유지관리공학회 논문집
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• 제14권2호
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• pp.97-105
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• 2010

시공단계에 따른 강상판교의 변위를 측정하였고, 이 결과와 비교하기 위하여 3차원 구조해석을 수행하였다. 검증된 모델을 사용하여 대블럭 시공법에 의한 시공단계에 따른 3차원 구조해석을 수행하여 다음과 같은 결론을 얻었다. 1. 설계에 사용된 Grid 해석과 3차원 해석에 의한 결과를 비교하면, Grid 해석의 결과는 곡선교의 변위를 모사하는데 한계가 있었으며, 두 가지 해석방법에 의한 변위의 차이는 약 10~20%정도였다. 2. 가설중에 일어날 수 있는 최대 처짐은 완료된 상태의 처짐에 비하여 1.7배까지 크게 발생하였다. 3. 시공단계 해석 결과, 블록시공법에 의하여 시공되는 교량의 거동은 전체 구조물이 일체로 되어 한 번에 거치되는 교량과는 다른 결과가 도출되며, 중간의 가설과정에서는 설계시 고려된 응답보다 더 큰 결과가 도출되고 있으므로, 설계시 시공단계를 고려한 해석을 통하여 합리적인 구조설계가 이루어져야 한다.

• 한국강구조학회 논문집
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• 제23권6호
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• pp.691-704
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• 2011

본 연구는 데릭크레인과 인양중인 새그먼트 자중에 의한 외력이 작용하는 시공중인 폐합 직전 사장교의 기하비선형성 및 재료비선형성을 고려한 비선형 해석을 통해 극한 거동을 규명하였다. 시공중 사장교의 상태를 수치적으로 구현하기 위해 초기형상 해석과 역방향 시공단계 해석을 순차적으로 진행하였고, 이후에는 데릭크레인 및 인양중인 새그먼트 자중을 중앙경간 최 측단에 재하 하여 폐합 전 강사장교의 주요한 거동을 모사하였다. 또한 주요 매개변수에 따른 극한거동 및 극한하중계수의 변화를 정량적으로 분석하기 위한 방법으로 주탑-거더간 강성비와 케이블 면적을 변화하면서 거동을 관찰하였고, 기하비선형성과 재료비선형성 모두를 고려한 극한해석 결과를 기하비선형성만을 고려한 기하비선형 해석과 비교하여 보다 구체적이고 정량적인 극한거동에 대해 분석하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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• pp.119-123
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• 2010

Recent economic slump has highlighted the needs for the construction industry to develop strategies to improve productivity and overhaul organization structure. Notably, it is urgent to improve productivity of apartment building construction projects that account for about half of the aggregate revenue of building construction projects in Korea. As construction site management manpower staffing plan has close relation with the productivity of building construction, it is essential to staff construction sites adequately in consideration of site conditions and characteristics. However, construction companies of Korea are still far from developing site management manpower staffing plan in reference to quantitative standards. Therefore, this research aims to analyze site management manpower staffing plan of apartment building construction project by means of density analysis. To be more specific, site organization charts and staffing plans of apartment building construction projects put together by large construction companies in Korea are studied and essential resources and their mobilization time of apartment building construction projects are examined. Conclusions herein will provide basic inputs to subsequent studies of apartment building construction site management manpower staffing standards.

• 한국건축시공학회지
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• 제10권3호
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• pp.71-81
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• 2010

건설R&D 사업은 1994년에 12억원으로 시작하여 2007년에는 1,648억원을 투자하였다. 그동안 연구개발자는 연구성과 실적을 한국건설교통기술평가원에 제출하였고, 이를 기반으로 건설R&D성과 관리가 이루어져 왔다. 건설R&D사업 성과실적이 연구자의 주관적인 분석결과와 보고자료에 의존함으로써 건설R&D 성과의 객관성 및 신뢰성 확보가 어려웠다. 따라서 본 연구는 건설R&D 성과 중 개발기술의 현장적용 비용절감액 분석과 객관적이고 신뢰성있는 경제적 파급효과를 분석하고, 건설R&D의 현장적용 활성화 방안을 마련하였다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.64-71
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• 2002

This research developed construction cost forecasting model using Building Construction Cost Index, time series analysis and Artificial Neural Networks. By this model, we could calculate the forecasted values of construction cost precisely and efficiently. And we also could find out that the standard deviation of forecasted values is 0.375 and it is a very exact result, so the standard deviation is just 0.33 percent of 112.28, the average of Building Construction Cost Index. And it show more exact forecasting result in comparison with Time Series Analysis.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2016년도 춘계 학술논문 발표대회
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• pp.68-69
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• 2016

North Korean market created by reunification of the Korean Peninsula is expected to serve as a new growth engine to the already-developed construction industry of South Korea. Improvement on deteriorated construction facility of North Korea is a project in urgent need at the initial stage of reunification. Prior to market entry of the Korean peninsula under these circumstances, economic feasibility analysis on construction technology application must be preceded by considering reunification period. Therefore, this study conducts an economic feasibility analysis on construction facility improvement project of North Korea considering application period of technology developed by South Korea. Results of this study are expected to be utilized in future reunification process as the basis for establishing relevant guidelines for construction facility improvement project of North Korea.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2022년도 봄 학술논문 발표대회
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• pp.127-128
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• 2022

The construction industry has a higher disaster rate than other industries, so safety education and management are highly important. In order to reduce the construction accident rate, it is necessary to study the key safety management factors reflecting the characteristics of the construction industry, where there are differences in processes and manpower input for each process, and a small number of managers. Therefore, in this study, key safety management factors for each Process of construction were derived through cross-analysis between safety accident types and accident occurrence objects through disaster case data. The extracted key safety management factors are expected to provide useful information for safety education and supervision of construction sites.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.283-284
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• 2021

Due to the nature of the construction industry, massive and diverse data is generated and collected from each project. It can be classified into a number of variables that specify the distinct characteristics of construction projects. However, a variable is used in different terms depending on the users. This situation plays as a great barrier to effective construction information management and also has limitations to collective research and practice. As a solution, it is essential for developing common and shared variables. In this context, the aim of this study is to define systematically organized standard variables for globally collaborative construction management. The standard variables are identified by bibliometrics analysis with VOSviewer, and the bibliographic data is collected from the Scopus with 13,533 documents about construction management.