• 한국건설관리학회논문집
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• 제16권3호
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• pp.59-67
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• 2015

국내 건설업체의 해외건설 진출은 최근 10년간 급성장 하였지만 단순도급형 사업과 EPC사업에 주력한 결과 매출액 대비 순이익률은 2007년 6.4%를 기점으로 줄어들어 2012년에는 불과 0.5%만을 기록하였다. 이에 국내건설 업체는 선진 업체가 독점하고 있는 고부가가치 사업인 PMC(Project Management Consultant)분야로 방향 전환을 시도하였으며 몇 년 동안 경험 및 시장 경쟁력을 높이고자 국내 건설업체는 16개의 건축 토목 PMC 관련 사업(용역)을 진행하였다. 하지만 대부분이 토목분야로 진출을 하고 있어 해외 건축사업 PMC분야 진출을 위해 단계별 세부업무 역량의 중요도 및 현재 역량수준을 알아보고 IPA를 이용하여 분석하였다. 계획단계에서의 중요도 대비 현재역량 수준 Gap값이 가장 크고, 다음으로 Gap값이 크게 나타난 건설이후 단계로 나타났다. 특히 계획단계에의 세부업무역량수준을 우선적으로 강화해야 될 것으로 판단된다. 본 연구에서 도출된 분석결과를 통해 해외건축사업 고부가가치 영역인 PMC분야 업무에 향후 국내 건설업체의 진출을 위해 강화해야할 업무역량에 대한 업무항목 및 역량수준파악을 위한 기초 자료로 활용 될 것으로 기대된다.

• 한국안전학회지
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• 제37권5호
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• pp.33-41
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• 2022

As the number of automobile registrations increases yearly, parking spaces that are located in downtown areas are increasing, and mechanical parking facilities are also increasing. Therefore, there is a high risk of accidents when installing and repairing a mechanical parking facility. In the preceding six years (from 2012 to 2018), the statistics that pertain to accidental disasters indicated that a total of 137 disaster victims were generated by the construction sector, 33 accidents occurred, and 10 people died. However, only the safety management items pertaining to accidents that occur during maintenance work and the use of the installed mechanical parking facilities are being studied; furthermore, there is no ongoing research with respect to the risk management that is conducted at the construction site. In 2017, the Korea Occupational Safety and Health Agency (KOSHA) announced the "Guidelines for Safe Installation and Maintenance of Mechanical Parking Equipment"; however, it is a safety guideline that is limited to the installation of basic protective equipment and to facility installation. There is no model for mechanical parking facilities that is indicated in the "Risk Assessment Model by Construction Industry Type", which is issued by the Safety and Health Corporation and is widely utilized for risk assessment in the construction industry; moreover, elevator installation work CODE N0: 22 is the only major example of a disaster. In this study, "risk assessment through a focus group interview" was performed, and data was derived from the "risk assessment of Article 41 (2) of the Industrial Safety and Health Act", which reflects the characteristics of the construction industry based on AHP analysis. The results of this study can be utilized for the risk assessment that is conducted during the construction stage of mechanical parking facilities.

• Journal of Construction Engineering and Project Management
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• 제3권4호
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• pp.26-34
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• 2013

Customer satisfaction and customer relationship are crucial aspect in any enterprises including housing construction projects. In general, the housing developers are facing a number of new challenges in different countries including Libya. The construction industries/housing developers need to continuously improve their products and services to meet customers' satisfaction desires and to remain in the current competitive market. This paper focuses on analysing the satisfaction factors of customers including qualityaspects of products and services in the construction projects. A framework was developed to evaluate the dynamics relationship between customer satisfaction and quality products or services, aiming to help companies' managers and policy makers to understand the needs and points of view of their customers. Apragmatic analysis was conducted to explore and analyse the customer satisfaction factors in construction industry considering different aspect of customer groups in Libya. Results indicate that there is a high demand of improvements in the contractor's performance in terms of cost, time and quality of products. It was also found that Libyan construction companies have been forced to transform their policies after on Libyan war 2011 to focus on client and customer satisfactory policies, or say centric for the purpose of improving client requirements and turn the business into more advantageous for any company.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1414-1418
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• 2009

International construction projects typically manifest difficult, complex, and varied types of risk exposures; because of this, there is a need for accurate evaluation of risk-integrated performances during the timeframe of project execution. Given the financial crisis currently affecting the world economy recession, risk management has become a more crucial part for the success of international project management. However, the majority of risk management approaches, particularly for overseas projects, are focused primarily on simple forms of checklists, formalization of risk variables affecting project performance for a specific phase, or more complicated computational methods that restricting practical utilization in real-world projects; moreover, these methods lack the conceptual basis to broadly visualize the level of risk over all phases of a project. This study suggests an efficient, yet simple risk-integrated total index to successfully assess the risk levels of overseas construction projects. To this end, this paper first investigates the life cycles and key processes of decision-making for a given project and then derives formulas to represent the total risk index (TRI) along the key decision-making processes. In addition, the study examines the relationships between TRI and performance levels based on the analysis of 126 real-world project samples. Validations using the proposed TRI showed a high correlation to project performance, signifying the usefulness of the proposed approach for construction firms when investigating the level of risks and key areas for management focus.

• 대한안전경영과학회지
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• 제16권3호
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• pp.23-34
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• 2014

With a view to analyzing the influential factors and their prioritization in association with the loss from construction disasters, this study has presented relative weighted value and importance for each category of loss by making a systematic classification of costs for non-insured categories (indirect costs) and conducting AHP analysis based on results of a survey of specialists. Through the study, first, I have divided the larger classification of loss factors into human loss factor, financial loss factor, special cost factor, and managerial loss factor, and, second, have presented prioritization of loss categories by allotting scores based on weighted values after calculating weighted value through pairwise comparison of loss levels. Based on these results of the study, we should be able to qualitatively calculate the loss costs that construction disasters inflict on business, promote rational decision-making and efficiency in spending related to a disaster, and compare it against safety investment designed to reduce disaster loss from the perspective of business strategy.

• 한국건축시공학회지
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• 제9권6호
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• pp.189-195
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• 2009

최근 인구의 도심 집중화 현상이 심화됨에 따라 토지이용의 극대화를 위해 지하공간의 활용이 매우 활발하게 진행되고 있다. 또한 최근 건축물의 지하심도가 깊고 인접건물과 근접시공 되는 경우가 많으므로 건축물의 지하외벽은 슬러리 월 또는 흙막이가시설을 외벽 거푸집으로 사용하고 내측에만 거푸집을 시공하는 방식인 합벽으로 시공되고 있다. 그러나 지하층 합벽 거푸집공사에 대한 원가분석이 건축공사 표준품셈 등에 없는 실정이다. 따라서 본 연구는 지하층 합벽 거푸집 공사의 원가분석을 시행하여 시공단계별 투입원가에 대한 자료를 제공하고자 하였다. 연구결과는 수평목 설치 및 해체는 3%, 거푸집 설치 및 해체는 26%, 보강재 설치 및 해체는 12%, 지지대 설치 및 해체는 42%, 기타 작업은 17% 이다. 정확한 투입원가를 프로세스별 구분하여 정리함으로서 신기술 및 신공법 개발 시 중점을 두어야 하는 포인트를 제시할 것으로 판단된다.

• 산업경영시스템학회지
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• 제46권3호
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• pp.209-220
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• 2023

Recently, defects that occurred during the construction of apartment houses have become a social issue. Defects in apartment houses lead to waste of resources and economic loss, causing psychological and physical damage to customers, and a decrease in reliability and financial loss to construction companies. The purpose of this study was to analyze the impact of defect occurrence according to the difference in project management level in the apartment housing construction stage, and to investigate the extent to which the project manager's experience affects the defect occurrence rate. For the empirical analysis of the study, statistical analysis was conducted using data collected from 130 actual projects. The results of the analysis showed that schedule management, cost management, and quality management had a positive effect on reducing the defect occurrence rate in the execution stage of apartment housing construction, while human resource management productivity had a negative effect. This study theoretically demonstrated the importance of project management, and in practice, showed that schedule management, cost management, and quality management should be faithfully performed in the execution stage to reduce the rate of defects after project completion. It was also suggested that hiring an experienced project manager would help reduce project defects.

• 한국안전학회지
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• 제27권4호
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• pp.62-67
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• 2012

Risk Assessment, a basis of health and safety management system, is an calamity prevention activity which regularly measure the level of a risk to passively improve potential hazard. A problem, the assessment not being improved to be applied to the construction work site where requires diversity and complexity, causes the assessment to be inefficient to bring quality results. A study on the investigates and compares the surveyed degree of recognitions of workers who works in companies executing the risk assessment By the investigation and comparison, it is expected to bring the better solution for early and efficient application for those companies which are not taking the risk assessment.

• East Asian mathematical journal
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• 제34권2호
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• pp.219-238
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• 2018

The purpose of this paper is to reinterpret and visualize Pappus' methods for trisecting the angle by utilizing the Nicomedes' conchoid and Apollonius' symptom of a hyperbola. In particular, we reinterpret the Pappus' three results which are the methods of hyperbola and circle, the trisection of the arc and focus and directrix of the hyperbola by 3 steps(analysis, construction, and proof) in the current middle school curriculum of Mathematics. Moreover, we visualize the construction of an hyperbola which is represented by means of an eccentricity.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2012년 춘계학술대회
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• pp.1-11
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• 2012

Risk Assessment, a basis of health and safety management system, is an calamity prevention activity which regularly measure the level of a risk to passively improve potential hazard. A problem, the assessment not being improved to be applied to the construction work site where requires diversity and complexity, causes the assessment to be inefficient to bring quality results. A study on the investigates and compares the surveyed degree of recognitions of workers who works in companies executing the risk assessment By the investigation and comparison, it is expected to bring the better solution for early and efficient application for those companies which are not taking the risk assessment.