• International Journal of High-Rise Buildings
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• v.6 no.3
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• pp.261-269
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• 2017

Designed by star architect of Moshes Safdie, Raffles City Chongqing includes a total of 6 mega high-rise towers 250 to 380 m tall, a sky conservatory, a 5-storey high shopping mall and a 3-storey basement car parking. Located at the confluence of the Yangtze and Jailing Rivers, the site for the project is imbued with a significance that is immediately symbolic, both as a sign of Chongqing's important past and as a vivid indicator of the city's thriving present and future. The design for the project to be situated at this gateway takes as its governing idea the image of powerful sails upon the water. The outer facades of the project's eight towers - the transparent surfaces that will face the water to the north - are meant to recall a fleet of ancient Chinese ships, with their huge rectangles of white canvas filled by the wind. This is a $1.13million\;m^2$ mega scale integrated project of office, retail, hotel, service residence and high-end residence with the transportation hub and traffic circulation at various levels of the project. This paper presents the multi-dimensional hybrid design, engineering and construction of this mega scale project. The innovations and the cutting-edge technology used in this project are introduced and discussed benchmarking the design and construction of the skyscraper cluster in a major city like Chongqing of China.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.1360-1363
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• 2011

PMO(Project Management Office)는 프로젝트 수행을 일관성 있게 관리하는 조직으로 프로젝트의 효율성을 극대화하고자 수행 초기부터 전체적인 일정을 계획하고 관리하며, 프로젝트의 성공적 수행을 도모한다. 본 논문에서는 실제 IT 프로젝트를 수행한 사람들을 대상으로 설문조사를 실시하여 첫째, 프로젝트 성과에 영향을 주는 PMO의 핵심 기능을 5가지로 정의하고 둘째, PMO가 조직의 성과에 기여하는 영역을 경쟁가치모형1)을 이용하여 4가지 모델로 분류하였다. 셋째, 프로젝트 성과에 영향을 미치는 PMO 기능을 통계적으로 분석하여 도출하였다. 연구결과로 한국은 PMO 기능 중에 프로젝트를 통해 알게 된 교훈이나 지식을 관리하는 학습영역은 조직의 성과에 긍정적인 영향을 미치고 있지만 프로젝트에 대한 통제 및 보고, 표준화 된 관리 방법론은 성과에 기여하지 못하고 있음을 확인하였다. 향후 본 연구를 통해 PMO가 조직에서 성공적으로 도입되기 위해서 수행해야 할 주요 역할을 명확히 함으로서 프로젝트 관리 수준을 향상시키고 프로젝트 수행에 PMO를 효과적으로 활용하고자 한다.

• Journal of Construction Engineering and Project Management
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• v.6 no.4
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• pp.24-34
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• 2016

Disputes seem to be synonymous with large-scale construction projects in Ethiopia. The purpose of this study is to determine the factors responsible for impacting the performance of Ethiopian public construction projects. To this end, 35 success and failure attributes responsible for impacting the performance of the projects were identified and presented to Ethiopian construction professionals in the form of a structured questionnaire, and responses were collected. The factor analysis conducted on the success and failure attributes influencing no-dispute performance separately resulted in six success factors and five failure factors. Further analysis using stepwise multiple regression indicates that owner competence and interaction among project participants have a positive impact on no-dispute performance. However, conflict among project participants has a negative impact on the no-dispute performance of Ethiopian public construction projects. Although Ethiopia-specific, the results reflect construction management problems common to both developed and developing countries. The findings are expected to help researchers and practitioners gain a better understanding of critical success and failure factors and to help them take proactive measures to avoid disputes in public construction projects.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.921-924
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• 2013

PMO(Project Management Office)는 해당 영역의 프로젝트를 조정된 중앙 통제 방식으로 관리하기 위하여 필요한 다양한 책임을 배정받은 조직, 부서나 주체를 말하며, 프로젝트 관리 지원 기능을 제공하는 일부터 직접적인 프로젝트 관리에 이르기까지 다양한 책임을 지니고 있다. 본 논문에서는 PMO 제도 도입에 따른 성공적인 공공 정보화 사업 완수를 위해 우리나라 PMO 관련 현 법제도 현황을 선행 연구자들에 따른 PMO 기능 분석 종합 자료와 미국의 표준화된 프로젝트 관리 프로세스인 PMBOK(Project Management Body of Knowledge) 관리 지식 영역 프로세스를 적용해 우리나라 현 법제도의 적합성을 비교 분석하였다. 연구 결과로 공공 정보화 사업에서 PMO 제도를 도입함에 있어 우리나라 현 법제도가 공공 정보화 사업의 품질을 높이는데 보완되어야 할 영역들이 요구되었다. 향후 본 연구를 통해 공공 정보화 사업의 PMO 제도 도입 시 법적 제도화와 전문성을 제고하여 성공적인 사업 수행에 도움이 되도록 하고자 한다.

• International conference on construction engineering and project management
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• 2015.10a
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• pp.344-348
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• 2015

The image data of the web camera is used to identify the construction status of the site in a remote office and it can be used for safety management. This study develops a construction schedule simulation system based on the active nD object linked with real image data of web camera from the construction site. The progress control method by 4D object uses a method that the progress of each activity is represented with different colors by progress status. Since this method is still based on a virtual reality object, it is less realistic description for practical engineers. Therefore, in order to take advantage of BIM more realistic, the real image of actual construction status and 4D object of planned schedule in a data date should be compared in a screen simultaneously. Those methodologies and developed system are verified in a case project where a web camera is installed for the verification of the system.

• Journal of Climate Change Research
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• v.7 no.3
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• pp.217-229
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• 2016

Increased evidences reveal that the global climate change adversely affect on the environment. Smart grid system is one of the ways to reduce greenhouse gas emissions in the electricity generation sector. Since 2013, Korea Electric Power Corporation (KEPCO) has installed smart grid station in KEPCO office buildings. The goal of this paper is two folds. One is to quantify the reduction in greenhouse gas emissions through smart grid stations installed in KEPCO office buildings as a part of pilot project. Among components of smart grid stations, this research focused on the photovoltaic power system (PV) and energy storage system (ESS). The other is to estimate the reduction in greenhouse gas emissions when PV is applied on individual houses. Results show that greenhouse gas emissions reduce 5.8~11.3% of the emissions generated through the electricity usage after PV is applied in KEPCO office buildings. The greenhouse gas emissions reduction from ESS is not apparent. When PV of 200~500 W is installed in individual houses, annual greenhouse gas emission reduction in 2016 is expected to be approximately $2.2{\sim}5.4million\;tCO_2-eq$, equivalent to 6~15% of greenhouse gas emissions through the electricity usage in the house hold sector. The saving of annual electricity cost in the individual house through PV of 200 W and 500 W is expected to be 47~179 thous and KRW and 123~451 thousand KRW, respectively. Results analyzed in this study show the environmental effect of the smart grid station. In addition, the results can be further used as guidance in implementing similar projects.

• Journal of Information Technology Applications and Management
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• v.25 no.1
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• pp.47-66
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• 2018

The development of IT is transforming from the way it has been working face-to-face in performing projects to the online collaboration method using web-based tools. Therefore, various online collaboration tools are being developed and commercialized, including 'Google Docs', which is called the online office. Using these online collaboration tools, users can share documents with other users and collaborate in real time. Therefore, in recent years, companies and educational institutions have been using online collaboration tools to carry out tasks and projects that require collaboration. Various factors can affect the project performance satisfaction through online collaboration tools. In this regard, it is necessary to confirm the factors affecting the satisfaction of the project performance. However, there is not enough empirical research on the satisfaction of the performance through the online collaboration tool. Therefore, this study will investigate the mechanism of project performance satisfaction through online collaboration tool considering the Individual characteristics of the project performing subject, the relationship characteristics between the project members, and the system characteristics of the collaboration tool.

• Korean Journal of Construction Engineering and Management
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• v.6 no.2 s.24
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• pp.69-79
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• 2005

The Purpose of cost Planning at the early Phase of construction Projects is to provide the clients with the appropriate cost information during the design decision-making process. Therefore, the cost planning process is expected not only to predict projects' cost accurately but also closely to coordinate with the design decision-making activities. This paper proposes a new cost planning method for the effective and efficient directions relating a design decision-making process. Strategies for this method are i ) to utilize elemental cost breakdown system, and ii ) to apply probabilistic distribution theories. Based on these strategic direction, this paper proposed a probabilistic cost planning model for high-rise office building projects. The suggested model provides appropriate cost information to meet clients limited budget and various project' requirements during the design decision-making process. This study is based on probabilistic distribution variables theories and the range estimating technique. This study also develops a web-based software program in order to apply the proposed cost planning model effectively in high-rise of office building construction practices.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.04a
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• pp.608-611
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• 2014

오늘날 경영환경의 변화에 따라 정부 또는 많은 산업의 기업들이 PMO 를 도입하여 실행하고 있다. 이에 각 산업별 PMO 의 효과적인 도입과 운영을 할 수 있는 방안을 제시하고자 1991 년부터 2007 년까지 선행연구자들이 정의한 주요 기능을 통합하여 IT, 금융, 건설산업 분야 PMO 의 주요 기능과 비교한 결과 각 산업의 PMO 주요 기능 수행비중 및 공통성, 차이점을 도출하였다. 또한, Ayyagari & Henry & Puvis 의 3 가지 가치 영역을 기준으로 각 산업별 PMO 가치 영역 비중을 분석한 결과 주요 가치 영역 및 비중을 분석하였다. 그 결과 PMO 의 효과적인 도입과 운영을 할 수 있는 방안을 제시 할 수 있었으며, 향후 연구에서는 좀 더 다양한 산업군과 폭넓은 사례를 연구하여 다양한 산업별 PMO 의 현황을 파악, 각 산업별 특성에 맞는 역할 및 기능에 대해 가이드를 제시하여 보다 효율적인 PMO 제도 정착의 기준을 마련할 수 있을 것이다.

• International conference on construction engineering and project management
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• 2009.05a
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• pp.190-195
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• 2009

With the growth of information and communication technologies adoption in construction projects, it could be anticipated that more property owners and construction firms will attempt to use electronic gears and gadgets for site monitoring or surveillance purposes. As the construction workers may be the major group of project team members being monitored, from managerial perspectives and for ethical reasons, it is essential to investigate their degree of acceptance on site monitoring systems. Indeed studies on office workplace monitoring suggest that a monitoring system could shape or control the behaviors of employees. With adequate refinements, their research models could be applicable in the construction industry. This paper presents a model for analyzing the antecedences that affect workers' acceptance level on electronic monitoring, and investigating if there is any behavioral change.