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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Construction Engineering and Management
Journal Basic Information
Journal DOI :
Korean Institute Of Construction Engineering and Management
Editor in Chief :
Volume & Issues
Volume 17, Issue 4 - Jul 2016
Volume 17, Issue 3 - May 2016
Volume 17, Issue 2 - Mar 2016
Volume 17, Issue 1 - Jan 2016
Selecting the target year
The Development of a Standardized Work Process for Planning of Plant Project - Focus on Excavating and Investing Participation Plan -
Lee, Do-yun ; Choi, Chang-Hoon ; Won, Seo-kyung ; Cho, Moon-Young ; Han, Choong-Hee ; Lee, Junbok ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 3~11
DOI : 10.6106/KJCEM.2016.17.4.003
Recently, overseas plant orders of domestic enterprises are steadily increased, and the amount of orders in the first half of 2014 were 93% increased compared to the previous year. In addition, now which is the third quarter of 2015, overseas plant orders are already over 249.8 billion dollars so the interests of plant industry research has been increased. In the life cycle of the plant project, CM before the construction stage is to complement the uncertainties that are inherent in the early stages of the project, and from the viewpoint of supporting the rational decision-making, the importance of its role is on the rise. Among them, excavating and investing participation plan in the planning stage is an important work that has a large impact force to influence the success and failure of future project. However, the work has become a problem with frequent consultations due to decision-making, continuous modification, and inefficient repetitive tasks. Therefore, it is needed that work process should be changed to effectively accommodate. The purpose of this paper is to derive the major work items for excavating and investing participation plan in the planning stage of the plant project, and establish a standardized work process through the Delphi analysis. The result of this study is expected to be utilized for EPC companies in ensuring the technical competitiveness in planning on overseas markets, and improve the efficiency of work.
A Study for Selecting Modular Construction Method - Focus on Benefits and Barriers of Modular Method -
Park, Chan-Young ; Kim, Hyunjin ; Won, Jin Woo ; Jang, Woosik ; Han, Seung-Heon ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 12~19
DOI : 10.6106/KJCEM.2016.17.4.012
Recently, The importance of modular construction method has increased by market environmental change. However, it`s application in the actual project is restricted due to the lack of understanding of modularization and the absence of utilization system. To overcome this problem, this study propose the decision-making model for selecting modular or conventional (stick-built) construction method at early stage. First the needs of modular method in plant project is derived and the benefits and barriers of modular construction are analyzed through literature review. Based on this analysis, 6 decision-making factors covered project and modular characteristics are derived and the decision-making model is developed. Finally, 12 actual overseas project cases is evaluated by this model for verifying its applicability. This proposed model can provide the guideline to select the construction method in early stage for successful execution of plant project.
An Agent-Based Modeling Approach for Estimating Inundation Areas over Time
Kim, Byungil ; Shin, Sha Chul ; Jung, Jaehoon ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 20~27
DOI : 10.6106/KJCEM.2016.17.4.020
Emergency and evacuation planning is critical to reduce potential loss of life from flooding. In order to develop evacuation plans, emergency managers and decision makers require estimates of probable inundation areas and times of inundation. In this paper, we present an agent-based modeling approach that incorporates in a hydrodynamic model to estimate both of these properties. A case study is conducted modeling the failure of a dam located in Andong, South Korea. We estimate flood travel times for Manning`s roughness coefficients and discharge using a coupling of the continuity equation and Manning`s equation. Using the output from the hydrodynamic model and the flood travel times, the agent-based model produces flood inundation maps at each time interval. The model estimates that for two-thirds of the Andong region the time of inundation is estimated to be slightly less than three minutes. The results of this study can be used to in the development of emergency and evacuation planning for the region.
A Study on the Consumer Choice Criteria based on Facility Purpsoe for Multi-Mixed Complex Medical Care Facility Development
Sung, Nayoung ; Lee, Sangyoub ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 28~39
DOI : 10.6106/KJCEM.2016.17.4.028
The multi-mixed complex medical care facility consisting of mainly hospital and other associated facilities such as retail, office, accommodation, healthcare services, and so on, is currently recognized as a new segment in the real estate market. This study intends to identify the customer choice criteria for the development of multi-mixed complex medical care facility. Based on literature review and expert consultation, the 3 criteria with 12 sub-criteria for customer choice have been defined. And the AHP methodology has been implemented for the development of relative weight of those criteria depending on the type of facility including `medical facility`, `supporting facility`, `healthcare service facility` and `other ancillary facility`. Research findings indicated the implication for the optimal combination of facility development based on the customer choice criteria controlled by facility. Accordingly, this research intends to provide the guidance toward the development of multi-mixed complex medical care facility.
Correlation between Building Facade Elements and Defects through "Pixelization Method"
Kim, Wooram ; Jeon, Yongdeok ; Shin, Jeongran ; Jeong, Kichang ; Lee, Jaeseob ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 40~48
DOI : 10.6106/KJCEM.2016.17.4.040
The construction industry has been made diversified on the design process depending on qualitative growth of customers` demands. But this approach has lead to problems such as falling of building values due to lack of awareness of defects caused by long term utilization. So, the relationship on the characteristics of buildings and defects should be clearly analyzed to prevent falling of building values. This study, therefore, proposed a technique to quantify the relationship between building facade elements and defects. The technique was developed by applying pixel concept to the outside of the buildings. It has a feature to determine the clear relationship by presenting quantitative data that have been recognized qualitatively. The proposed technique is referred to "Pixelization Method". It separates building facade into unit compartment and makes database by assigning a code depending on the characteristics. Through the method, this study is expected to create a foundation for the quantitative analysis of relationship between building facade elements and defects as a basis on active responding to the defects.
Development of Project Delivery System in Public Sector for Modular Building
Nam, Sunghoon ; Kim, Kyungrai ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 49~56
DOI : 10.6106/KJCEM.2016.17.4.049
Recent research has been ongoing for modular buildings in the country and interest increases. However, the activation of modular building projects is obstructed in the construction industry. There are many reasons to identity for this obstruction but one issue should be focussed. Modular buildings require to change the existing construction production system to a new construction production system, which is factory production - transportation - erection. However, the existing project delivery system in the public sector could not be adapted for this new construction production system due to the obligation of multi prime contract use, such as electrical, communication, fire fighting contracts by Law. Therefore, modular buildings in the existing project delivery system are separately contracted by multi prime contracts and modular units composed of the buildings are contracted by an architectural prime contractor as a commodity. As results, construction costs are increased, potential quality problems are raised and the existing project delivery system is finally an obstacle not to maximize benefits of the modular buildings. In this paper, we propose a new project delivery system for the modular buildings to adapt then ew construction production system.
A Study on Estimating of Probability Distribution and Mean Life of Bridge Member for Effective Maintenance of the Bdrige
Lee, Yongjun ; Lee, Minjae ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 57~65
DOI : 10.6106/KJCEM.2016.17.4.057
This study found a proper parametric life distribution based on maintenance history data of each bridge member under the jurisdiction of the Korea Expressway Corporation for the past 10 years by introducing the concept of reliability and suggested a measure to calculate the mean life and reliability of each bridge member using the parameter obtained with the maximum-likelihood classification. As a result of analyzing the exponential distribution, weibull distribution and log normal distribution being utilized frequently in order to find the parametric life distribution type which well described the life data of each bridge member, it was found that the log normal distribution and weibull distribution described the characteristics of the relevant life data the best. As a result of calculating the mean life of each bridge member based on the estimated parameter, the average life of the steel bridge coating was 18.51 years which was the longest, followed by the bridge deck as 17.56 years. The mean life of the drainage facility and the bridge bearing were 12.27 years and 12.57 years respectively, showing the shortest life.
Tax Exemption Grant Proposal to Promote Green Remodeling Project Implementation
Jung, Seoyoung ; Yu, Jungho ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 66~75
DOI : 10.6106/KJCEM.2016.17.4.066
Korean Government is implementing green remodeling projects on existing buildings and structures in a way of promoting low carbon green growth. However, the current regulations and systems do not clearly define the scopes and contents of the green remodeling. Also, the lack of the inducement measure is another reason of the low engagement of the private enterprises to the green remodeling business. Therefore, this study proposes a tax exemption plan to promote green remodeling business implementation, with the consideration on practical applicability. And the proposed plan was applied to the green remodeling pilot project case in2 014 and the effect was quantitatively analyzed. The result is expected to be used as a base data to improve the tax exemption benefit system to invigorate green remodeling later.
The Development of Risk Management Process Model during Bidding Phase for Success of Oversea Construction Projects
Seo, Jae-Pil ; Ryu, Han-Guk ; Son, Bo-Sik ; Choi, Yoon-Ki ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 76~86
DOI : 10.6106/KJCEM.2016.17.4.076
Recently, the Contracts of International Construction Business has been decreased from the beginning of 2015 in Korea, although it has been steadily increased until 2014. This trend could be caused by Low-Price Contracts, the lack of Know-how and experience in operating, the poor management of Claims and Low-Profitability in Business. It has been recognized that the qualitative improvement of Business Contacts are necessary for successful Projects. In the Bidding Process, therefore, Experience data as In-House Data and Lessons Learned for projects should be strategically involved to assure riskless offers. Accordingly the Proposal Process are needed to be organized and enhanced by including processes for risks review about technical, marketing and commercial part during the bidding. This paper proposes a Risk Management Process model during Bidding Phase, using Risk Evaluation Method through the project life-cycle. The Concept of Model is to define CSF (Critical Success Factor) in the bidding process and Risk Factors are linked to CSF and Organization based on RAM (Responsibility assignment matrix).
A Study on the Safety Distance of Underground Structures in Asepct of Ground Vibration Velocity due to Explosions
Park, Sangjin ; Kang, Jiwon ; Park, Young Jun ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 87~94
DOI : 10.6106/KJCEM.2016.17.4.087
The necessity to consider stability of underground structures constructed below or adjacent ammunition depots has been increased since the expansion of urban area and construction of infrastructure. However, there are a few studies on influence of accidental explosion on underground structures. In this study, the process of assessing the stability of underground structures is suggested and its applicability is verified through the case study. AUTODYN and SPACECLAIM are used to execute the structure and geotechnical modelling, and explosion effect is simulated and vibration velocities are calculated. According to the result of this case study, it is concluded that underground structure constructed 70m below ground might be rarely influenced by the simulated explosion. The process used in this study could be used to design the underground ammunition complex and analyse the stability of underground facilities being influenced by periodical vibration.
Improvement of the Calculation Standard for Prolongation cost of Domestic Public Construction Project
Jeong, Kichang ; Lee, Jaeseob ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 95~102
DOI : 10.6106/KJCEM.2016.17.4.095
Recently, a research regarding calculation of construction time extension-oriented incidental costs has been intensively suggested in quantitative aspect and recent studies on system improvement has been made continuously. In the case of Domestic Public Construction Works, State Contract Act is applied when the client is government whereas Local Government Contract Act is done when the client is local government, but more meticulous study is required because improvement plan is not proposed even there is a clear demand for improvement of these problems on calculation standard. Thus this study suggested appropriate standard by comparing each the calculation standards followed by `State Contract Act` and `Local Government Contract Act`, considering the problems accorded, and analyzing field cases. Calculation method of other expenses was differently regulated as the revision of each regulation, and this demonstrates that there is a difference of actual cost from 12.37% to 24.95%. It is shown that less cost of construction time were calculated than actual cost according to a problem of calculation method by State Contract Act as the rate at the time of contract to be applied in other expense rate. This study suggested the rate against incidental cost and the rate of other expense per day against total construction cost as an appropriate rate calculation for other expense based on field database.
An Analysis on the Characteristics of Each Phase`s Risk Factors for High-Rise Development Project
Chun, Young-Jun ; Cho, Joo-Hyun ;
Korean Journal of Construction Engineering and Management, volume 17, issue 4, 2016, Pages 103~115
DOI : 10.6106/KJCEM.2016.17.4.103
The 106 buildings of 200 meters` height or greater were completed around the world in 2015 (CTBUH, The Council on Tall Buildings and Urban Habitat). They beat every previous year on record, including the previous record high of 99 completions in 2014. This brings the total number of 200-meter-plus buildings in the world to 1,040, exceeding 1,000 for the first time in history and marking a 392% increase from the year 2000, when only 265 existed. South Korea recorded three completions during 2015 - improving slightly over 2014, in which it had one. This study focused on the fact that high-rise building development project risks have not reduced in Korea in spite of numerous studies and measures. And it attempted to examine whether existing studies and measures have been presented on the basis of the accurate analysis of existing studies and measures and classify and analyze the characteristics of each phase` s risk factors in the hope that its results would be one reference point as to the measure to prevent high-rise building development project risks in the future. A high-rise building development project is the high risk project as compared with the low-rise project. Because a high-rise development project takes long and is very sensitive to the changing environment. Therefore, in order to succeed the project it becomes necessary to effectively manage the risk involved in the process of the high-rise building development project. The result of this study can be used as the guideline to make the risk management system for the high-rise development project.