• 한국공간구조학회논문집
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• 제7권3호
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• pp.133-140
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• 2007

대공간 구조물은 힘의 흐름을 자연스럽게 하고, 휨모멘트의 영향을 가능한 저감 시켜 면내력만으로 외부하중에 저항하는 역학 개념을 기초로, 구조 시스템의 효율성을 극대화시키는 형태저항형 구조이다. 구조물의 경제성 분석은 그 프로젝트의 실행을 결정할 수 있는 중요한 요소이다. 대공간 건설에는 일반 건물에 비해 많은 기술적 고려가 요구된다. 프로젝트의 성공적인 수행을 위해 타당성 검토 단계에서 구조물의 전 생애의 필수적인 요소에 대한 분석이 요구된다. 본 논문에서는 기존 대공간 구조물의 사례를 조사하며, 이를 통해 자료를 수집하고 공사비를 분석하였다. 본 연구는 대공간 구조의 데이터 베이스 구축을 위한 기본적인 데이터 제공을 목적으로 한다.

• KIEAE Journal
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• 제11권4호
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• pp.47-54
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• 2011

Construction companies find it increasingly necessary to reduce the cost as the construction market has been suffering from a depression and the industrial environment has been changing fast lately. The cost cut demands the productivity management of the field operations, which can be made feasible by assigning an appropriate number of managers on the construction site. However, previous studies are focused on the labor productivity and construction companies take into account only the revenue per worker in organizing the staff. The purpose of this study is to research the model for calculating the field management manpower in accordance with the characteristic of project and site conditions which are usually considered in the beginning of the construction project. The data about apartment building projects of domestic large constructors and factors related to them were statistically analyzed. The results of this study can be used to calculate the necessary field management manpower in accordance with the characteristic of project.

• 한국안전학회지
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• 제30권5호
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• pp.20-28
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• 2015

Recently, railroad's preference greatly increased as the environment-friendly means of transportation as the importance in the aspects of environment and energy efficiency. So the government established the Korea Rail Network Authority which takes full charge of railroad construction in 20047 for regular railroad construction to combine major key points in the whole country with each other to be one city region by connecting them to each other to be within the commute time range of a hour and thirty minutes. And it has arranged large-scale railroad construction by establishing plans to build the 1st and 2nd national railroad networks as the national project and investing about 100 trillion won in it from 2006 to 2020. As large-scale railroad construction is promoted as the national project like this, there has been a string of safety accidents in it due to the large and complex construction project. As the government strengthened the safety accident prevention plans, safety accidents have tended to decrease in 2011. However, accidents of construction machinery have found to increase. Therefore, this study tried to investigate accident cases of the Korea Rail Network Authority for the recent 5 years and analyze accidents of construction machinery to prevent them in railroad construction sites and suggest accident prevention plans due to it by conducting, investigating, and analyzing the survey of its operators and superintendents of the construction sites and drawing the problems.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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• pp.298-300
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• 2013

Depending on the very large and complicated of the LNG plant project, for the successful execution of the project, the operating system that is seamlessly integrated in EPC phase is needed. Therefore, we surveyed and analyzed the PMIS development and application status in domestic and international plant construction. Based on the results of the research, we proposed the development direction for PMIS in LNG plant construction.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.509-512
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• 2008

건설공사는 복잡화, 다양화, 대형화되고 있으며 이러한 다변화된 건설 환경에 대응하기 위해 건설 선진국에서는 다양한 발주방식을 도입 적용해 오고 있다. 국내에서도 지속적으로 발주제도를 개선해 오고 있으며, 최근에는 공공건설공사의 발주방식을 보다 다양화하려는 취지에서 국가계약법시행령 개정을 통해 "기술제안입찰", "설계공모 기술제안입찰"을 새로 도입하였다. 하지만 이러한 정부의 노력과는 달리 몇몇 발주기관에서는 발주방식 선정기준 부계로 인해 공공건설공사에 있어서 획일적인 발주방식을 적용하고 있다. 이에 본 연구는 공공기관에서 기 발주된 건설공사 실태 및 현황분석과 설문조사를 통하여 발주방식 적용에 있어서의 문제점을 도출하고, 개선방안으로 발주기관이 객관적인 자료로 활용할 수 있는 사업유형별 발주방식 선정기준을 제시하고자 한다.

• 한국건축시공학회지
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• 제21권4호
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• pp.347-359
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• 2021

최근 건설공사는 초대형화로 단일 공사규모가 복잡해지고 천문학적인 공사비가 소요되는 프로그램 관리 형태의 성격을 지니는 사업이 등장하고 있다. 특히, 대규모 건설사업과 같이 프로그램 수준에서 관리가 절대적으로 필요한 사업은 계획된 일정 및 비용에 대한 전제적인 관리가 필요하다. 하지만 국내의 경우 구체적인 공사지연에 관한 관리기준이 부재한 현실이다. 이에 본 연구에서는 대규모, 장기간 진행되는 프로그램 수준의 대규모 건설사업을 성공적으로 수행하고 공정지연 및 부진사업을 사전에 방지하기 위한 지연관리지수(Delay Management Index, DMI)를 개발하였다. 이를 통해 대규모 복합건설 프로젝트를 대상으로 사례연구를 수행하였으며, 프로그램 수준 건설사업을 위한 지연예방체계를 구축하였다.

• 원자력산업
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• 제5권2호통권24호
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• pp.14-18
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• 1985

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.616-617
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• 2015

Demand is increasing for large, high-rise, and complex buildings, which is leading to advances in the development of high-performance structural systems. In this context, precast concrete (PC) technology has received a large amount of attention owing to its benefits in terms of schedule reduction, high quality, and easy installation. In addition, advanced methodologies that improve the PC performance by the addition of various materials have recently been reported. Research on analyzing the effects of such high-performance PC on the construction process and productivity is very limited. This makes it difficult for decision-makers to apply PC to particular projects. Thus, the aim of this research was to analyze the work productivity of the high-performance PC slab installation process by using a construction simulation tool to resolve critical issues. In this study, a real construction project that adopted PC slab installation work was analyzed, and a sensitivity analysis was performed to confirm the reliability of the analysis results.

• 국제초고층학회논문집
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• 제8권3호
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• pp.185-192
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• 2019

Citic Tower is the first over-500 m-tall super highrise building in the world, located in the high seismic intensity area with paek ground acceleration over 0.2g in 475 years. This project is unique in its complexity, large volume, and challenging site conditions (zero site for construction). The traditional techniques can hardly meet safty, quality and schedule requirements of the construction. This article introduces the key construction technologies that are innovatively developed and applied in Citic Tower project construction, including intelligent super-high-rise building integrated construction platform system, independently developed by the CCTEB; Jump-Lift Elevator, which is the first of the kind with service height over 500 meters; combined temporary-and-permanent fire protection systems. The BIM technology is also applied in this project. Through technical innovation, and utilization of technologies, construction speed and safety had been greatly improved.

• 한국건설관리학회논문집
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• 제8권6호
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• pp.235-245
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• 2007

This research study presents the development and application of an Elitist Genetic Algorithm (Elitist GA) for solving the resource-constrained project scheduling problem, which is one of the most challenging problems in construction engineering. Main features of the developed algorithm are that the elitist roulette selection operator is developed to preserve the best individual solution for the next generation so as to obtain the improved solution, and that parallel schedule generation scheme is used to generate a feasible solution to the problem. The experimental results on standard problem sets indicate that the proposed algorithm not only produces reasonably good solutions to the problems over the heuristic method and other GA, but also can find the optimal and/or near optimal solutions for the large-sized problems with multiple resources within a reasonable amount of time that will be applicable to the construction industry. This paper will help researchers and/or practitioners in the construction project scheduling software area with alternative means to find the optimal schedules by utilizing the advantages of the Elitist GA.