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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 14, Issue 6 - Nov 2013
Volume 14, Issue 5 - Sep 2013
Volume 14, Issue 4 - Jul 2013
Volume 14, Issue 3 - May 2013
Volume 14, Issue 2 - Mar 2013
Volume 14, Issue 1 - Jan 2013
Selecting the target year
Checklist for the application of concurrent engineering in bridge construction
Park, Seaman ; Park, Taeil ; Kim, Hyoungkwan ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 3~11
DOI : 10.6106/KJCEM.2013.14.1.003
As construction projects became larger and longer, the need for the construction technologies and innovative construction processes has been continuously increased in construction field. In response to this trend, construction industries tried to adopt the concurrent engineering which had been normally applied for manufacturing industries to develop the products with improved quality in a reduced time. However, the application of the concurrent engineering to construction field was limited due to the lack of advanced management system and incomplete theoretical backgrounds. In this regard, this study attempted to develop a checklist for the successful application of concurrent engineering to bridge projects. To this end, this study presents the checklist for the application of concurrent engineering to construction projects. Further, the checklist was modified and updated to reflect the specific feature of the bridge construction using expert interviews. With the help of additional 188 experts, a questionnaire-based survey was also conducted to validate the checklist. In addition, using importance-performance analysis(IPA), the study identified the factors needed for intensive improvement. Consequently, the proposed checklist is expected to be useful, because it improves the applicability of the concurrent engineering in that it enables managers to monitor construction progress and further to protect the project from potential risks.
A Study on the Accuracy of BIM-based Quantity Take-Off of Apartment Interior
Lee, Moon-Kyu ; Chin, Sang-Yoon ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 12~22
DOI : 10.6106/KJCEM.2013.14.1.012
Construction industry throughout the construction projects life cycle using BIM is able to manage information. Among them, BIM-based quantity take-off is directly connected to the data of the construction business as an important management element that is essential for one of the management factors of feasibility study and economic analysis. In addition, the result of BIM-based quantity take-off can be varied depending on modeler, so the exact guideline for BIM modeling is necessary. The BIM-based quantity take-off in terms of reliability and accuracy of the information is very important. Therefore, this study verified the BIM modeling of the apartment interior materials using both separate object and composite object was validated the quantitative comparison of the difference in BIM-based quantity take-off for accuracy & reliability judgment of BIM-based quantity take-off and realistic & desirable suggestion of BIM modeling way. As the result of this study, it is preferable to model various interior materials to use separate object for the purpose of correct BIM-based quantity take-off, but the realistic way of the BIM modeling using both separate object and composite object jointly was verified in order to judge BIM-based quantity take-off in terms of work productivity.
An Empirical Study on the Risk Diversification Effect of REITs
Cho, Kyu-Su ; Lee, Sang-Hyo ; Kim, Jae-Jun ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 23~31
DOI : 10.6106/KJCEM.2013.14.1.023
Following the U.S sub-prime mortgage crisis and a slump in properties market, the probability is rising that housing investment would not yield high profit as it used to do until early 2000s. For this reason, the nature of properties market is undergoing a change from a source of lucrative investment to a source of a relatively low but stable profit, such as profit-oriented real estate. This trend is likely to promote REITs market, which is a leading product for indirect investment. Until now, the REITs market has been growing slowly compared to a general housing market or financial markets. However, as the importance of risk management based on portfolio theories increases, stable profit generation of REITs can be effective in risk management. This study conducts an empirical analysis on how investment risks can be diversified by including REITs-a source of relatively stable profit in the equity market-in investment portfolio. The analysis results showed that, similar to food and beverage stocks of highly defensive nature, REITs has a relatively weak correlation with KOSPI that reflects the overall market performance. It also showed very low standard deviation in case of minimum variance portfolio. This suggests that including REITs in investment portfolio can be as effective as including food and beverage stocks for risk diversification. Due to uncertainties, investment always accompanies risks, and balancing potential profits and risks is essential.
A Study on Standardization of Supervision Cost by Investigating Supervision Workload in Cultural Heritage Repair Works
Park, Hwan-Pyo ; Han, Jae-Goo ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 32~42
DOI : 10.6106/KJCEM.2013.14.1.032
The Korean Government introduced a cultural heritage supervision system in January 2010 to control quality and to prevent poor construction. However, cultural heritage related constructions that require supervision, a scope of supervision, supervision cost and placement of supervisors have not been standardized yet. For this reason, standards of supervision for repair works of cultural heritage that reflect the characteristics of small-scale repair works and restoration of cultural heritage are required. Accordingly, this study has suggested standards of supervision works and cost by analyzing the average construction period that is suitable for the characteristics of cultural heritage repair works. In other words, this study has suggested standards of full-time supervision costs by applying the fixed amount-added method (adding direct labor cost, direct expenses, overhead expenses, engineering fee, charges for additional works and VAT) which is the same as the method of calculating supervision costs for public construction projects because a supervisor has to work full time at a construction site to perform supervision if the project is a mid/large-scale cultural heritage repair work. Also, this study has suggested standards of part-time supervision costs for a small-scale cultural heritage repair work and the ways of supervising the construction projects by visiting the project site on important occasions. According to the result of the analysis by applying the forgoing standards of supervision costs for cultural heritage, a full-time supervision cost for cultural heritage repair works is approximately 98% compared to the construction supervision of a public construction project, and a part-time supervision is approximately 158% compared to architectural construction supervision. It is expected that the valuable cultural heritage of Korea will be preserved by controlling quality of cultural heritage repair works through the application of this study result - the standards of supervision costs for cultural heritage repair works - to an actual project.
Influence of Overseas Construction Business on Construction Companies` Financial Stability
Cho, Kyu-Su ; Lee, Sang-Hyo ; Kim, Jae-Jun ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 43~51
DOI : 10.6106/KJCEM.2013.14.1.043
The changes in business structure of domestic construction companies suggest that there is a close relationship between the volume of overseas project and a company`s financial condition. Based on this assumption, this study conducts an empirical analysis on a relationship between overseas project and financial stability of a construction company. The ratio of liquidity and liability was used as liquidity index and stability index respectively. The analysis was based on quarterly time-series data between 2000 and 2010. Two models were constructed for the analysis: Model 1 was based on the liquidity ratio and the amount of domestic and overseas construction project; Model 2 was based on the debt ratio and the amount of domestic and overseas construction project. The analysis results showed that the increasing amount of overseas project facilitated short-term financing with greater liquidity, and yet it was not very effective in lowering the debt ratio. This suggests that the dramatic increase in overseas construction project, which is observed recently, is not entirely an optimistic sign.
Development of Management Systems based on IDEF3 Modeling to Improve Owner`s Competency of Implementing Green building Certification
Park, Kyung-Rog ; Yi, June-Seong ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 52~62
DOI : 10.6106/KJCEM.2013.14.1.052
Owners` efforts to acquire Green building certification, which started in 2002, have been rapidly increasing since 2006. The causes of the increased owners` interests are due to various incentives, legal obligation, and purpose of advertising. As project owners generally are deficient in capabilities and knowledge on how to deal with administrative works on certification, they tend to fulfill the minimum requirements for certification. However, effective administration process need capabilities of identifying individual making decision point and review information. The implementation of green building certification system is expected to provide comfort to both occupants and potential users. Furthermore it contributes to reducing energy costs throughout the phase of O&M. In addition, technology innovation in green industry can be obtained. Therefore, this study is intended to support owners in order that they can clarify certification tasks and make a rational decision-making in time. For this purpose, first of all, the major decision points were selected as the gateways of green building certification process. And then management system based on IDEF3 modeling was developed for supporting owners` decision-making performance. This management system will improve owners` overall capacity in handling all the tasks regarding the certification of Green building.
A Profitability Forecasting Model available in Planning Stage of Housing Redevelopment Project
Ahn, Kyung-Hwan ; Park, Jong-Soon ; Lee, Jong-Sik ; Kwon, Dae-Jung ; Chun, Jae-Youl ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 63~70
DOI : 10.6106/KJCEM.2013.14.1.063
A judgment on the redevelopment projects` predicted profitability is an essential decision-making element for the success of the redevelopment projects. It is necessary to review the literature on profitability of redevelopment project and draw risk factors that could affect profitability through the risk analysis based on surveys. It is also necessary to judge profitability prediction toward the business value of the redevelopment project in the planning phase according to the risk analysis results which can affect the profitability prediction. In order to prevent the growing difficulties in executing the projects, a profitability prediction model is proposed using the method of management and disposal based on a proportional calculation that can estimate the share of expenses in order to judge profitability in the planning phase. With the improvement of profitability prediction models, it is possible to appropriately judge profitability in the planning phase in order to allow the prevention of suspension, reduction of project term, reduction of cost, and making of rational decisions.
Analysis of significant factors for successful BIM technology application to Korean traditional house projects
Jang, Ha-Ra ; Lee, Joo-Sung ; Seo, Hee-Chang ; Oh, Jung-Keun ; Kim, Jae-June ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 71~81
DOI : 10.6106/KJCEM.2013.14.1.071
Recently, Korean Traditional House is being reconsidered as a alternative and eco-friendly residential housing. With these flows, government and industry actively studies the modernization and industrialization of Korean Traditional House. Apply for BIM as a way of modernization and industrialization of Korean Traditional House, research has been actively conducted. Korean Traditional House is building that is assembled by individual Component Therefore it is very useful for modernization of the Korean Traditional House to design Korean Traditional House With BIM. Which is the management technology that produces and distributes information of the architecture. But compared with the effect, the use of BIM is sluggish in the construction. Therefore, In this study after surveying about lowly using BIM on point of AEC(Architect-Engineer-Contract), the result is analyzed with AHP(Analytic Hierarchy Process). So the aim of this study is to offer the base to find the solution of the Affecting factors about lowly using BIM.
Development of Construction Project Performance Management System(PPMS) Considering Project Characteristics
Cha, Hee-Sung ; Kim, Ki-Hyun ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 82~90
DOI : 10.6106/KJCEM.2013.14.1.082
In the construction industry, there are so many qualitative factors affecting the performance of a project. So it is crucial to measure the factors in an effective way in order to analyze the interrelationship among the various factors. To improve the performance level of a project, it is also important to identify the most appropriate management practices which are inter-linked with the subject project. The purpose of this study is to develop a project performance management system (PPMS) to quantitatively analyze the variety of project performance data and identify the best management practice to increase the potential level of a particular performance area. Using a comparative statistical method, this study developed a quantification method and web-based computerized system to enhance the usage of the system. The system, however, is still under the validation stage because of the shortage of data set. In the future, when more and more completed project data are stored in the system, the system would play a crucial role in predicting the performance level and matching the best management practice for a subject project. In addition, the system can also be modified as a tool for a business- or industry-level system by incorporating the existing enterprise resource programs.
Identifying the perception on the introducing of Construction Management(CM) in the civil infrastructure project delivery system
Jang, Won-Suk ; Lee, Sang-Uk ; Lee, Dong-Eun ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 91~100
DOI : 10.6106/KJCEM.2013.14.1.091
Current environment in civil and construction industry has changed to actively adopt construction management (CM) in various areas. While it is found that exemplary CM projects have been carried out in many civil engineering sectors, concrete system framework has not been suggested due to ambiguous boundary between CM and supervision system, unclear perception of CM`s role, and inexperienced organization and regime. This paper investigated the challenges faced in civil and construction industry, and analyzed the strategy that could improve the current immature CM system by conducting questionnaire survey from experts in various construction sectors. The results could provide valuable information that can involve diverse opinions and view points in project participants.
The structural analysis between safety factors having an effect on the construction workers` behavior
Shin, Dong-Pil ; Lee, Dong-Eun ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 101~114
DOI : 10.6106/KJCEM.2013.14.1.101
This paper presents the findings relative to the influence factors on the safety of construction worker`s actions. It identifies the factors which are involved in the safety behavior exercised by construction worker. They are compiled from existing studies that investigates the factors relative to the safety behavior. This study finds some factors which have powerful direct effects on safety behavior of construction workers. In addition, a model which defines the relationship between the factors and the behaviors of workers is established to analyze the effects. This study contributes to designe a theoretical model that shows workers` behaviors and analyzes the effects attributed to these factors: i.e., organizational commitment, stress reaction, safety motivation, safety knowledge, and safety climate. Survey questionaries are administered to the workers on the construction job sites located in Daegu metropolitan city. using SPSS18.0 and AMOS18.0, Exploratory Factor Analysis, Cronbach`s alpha, Confirmatory Factor Analysis, Structural Equations Model analysis were performed. The research findings are as follows; The communication and educational training have the direct effect on the safety behavior. The factors of the safety climate constraints and/or contributes to the safety motivation, safety knowledge, and organizational commitment.
Analysis of Competency Assessment Using IPA for Construction Project Managers
Kim, Hwa-Rang ; Lee, Na-Kyung ; Jang, Hyoun-Seung ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 115~123
DOI : 10.6106/KJCEM.2013.14.1.115
Changes have occurred in the professional capabilities of the construction project managers after the global financial crisis. As representatives of construction companies and projects, construction project managers have full responsibility over a construction project. Throughout its life cycle, from design through construction to completion, the business capabilities of such managers are regarded as critical elements in the changes in the country`s construction economy. Therefore, this study aimed to determine the main capabilities of current construction project managers, and to analysis of its competitiveness using Important-Performance Analysis(IPA). The results of IPA were as follows; (1)capability to win new contracts and capability to collect information of new project are needed for external relation competitiveness, (2)gerentocratic management mind-set and active breakthrough are needed for internal project management competitiveness, and (3)capability to predict issues and self-improvement are needed for self discipline competitiveness. However, this work is still considered to provide the basic data that can help Korean construction companies who plan to educate the project manager`s strengthen their medium and long-term capabilities.
A Study on Duration Calculation Method for Eco-Friendly Remodeling Demolition Work Using Productivity Analysis
Woo, Joong-Pyung ; Cha, Hee-Sung ; Kim, Kyung-Rai ; Shin, Dong-Woo ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 124~132
DOI : 10.6106/KJCEM.2013.14.1.124
An influx of the population to the city has soared due to industrialization. As times go by, cities become densely populated so Korean government started to construct a number of buildings including apartment housings. Because they have become functionally, structurally, esthetically deteriorated over the past two decades. some improvements are needed. There are mainly two ways to improve old buildings: remodeling and reconstruction. Between the two, the first one is more popular as it is less time-consuming and more eco-friendly. Demolition work comes first for both of them and it should not give negative effects since it is regarded as a CP(Critical path) in the overall process. For this reason, a thorough construction management must be done. The reality, however, demolition is managed by the construction manager`s experiences and decisions. If the key factor of demolition which is the planning of manpower and machine equipment, is determined by unscientific and subjective judgments, its period and risk also will increase. In particular, eco-friendly demolition can be more risky because it`s been rarely conducted. Therefore, scientific and objective ways of demolition management are needed. In this context, this paper aims at analyzing productivity in each process of demolition focusing on manpower and machinery equipment which are the main parts of demolition assuming that the demands of eco-friendly remodeling demolition projects will be increasing. At the same time, by estimating working period through the output, this paper would be helpful to set up the plans for overall project in earlier stage.
Development of BIM-based Work Process Model in Construction Phase
Yu, Yongsin ; Jeong, Jiseong ; Jung, Insu ; Yoon, Hobin ; Lee, Chansik ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 133~143
DOI : 10.6106/KJCEM.2013.14.1.133
BIM can be utilized variously in construction management(CM) in the respect that it helps to manage comprehensively the construction information and make reliable decisions, but the adoption of BIM is insufficient in the CM area. The purpose of this study is to develop work process models and their guides in order to utilize BIM effectively in CM work at construction stage. This study defined BIM functions as `BIM converting design`, `Model review`, `Data extraction`, `Automatic estimate`, `4D simulation`, `Drawing creation`, `Engineering sector linkage analysis` through literature search, and generated CM works applicable to BIM by analyzing the CM work and process. This study developed BIM-based CM work process models by reconstructing the existing work process in connection with BIM function through an analysis on the relationship between BIM function and CM work, and reconstructing the role of each project participants. In order to improve the usefulness of the developed models, guides that described the BIM works of project participants were prepared through interviews and case studies. To validate the utilization of the models, a comparative analysis on the BIM process of precedent studies was also made and a survey was conducted on experts. This study can contribute to increasing the utilization of BIM in the CM area and can be helpful for CM companies to develop an in-house BIM guide. In the future, it will be necessary to make an assessment on the models from a business perspective through case applications and constantly update BIM-based CM work process model in consideration of the expansion of CM work due to the application of BIM.
Design Structure Matrix: A Model Proposal and Implementation on Harbor and Building Design Project
Akram, Salman ; Kim, Jeonghwan ; Pi, Seungwoo ; Seo, Jongwon ;
Korean Journal of Construction Engineering and Management, volume 14, issue 1, 2013, Pages 144~152
DOI : 10.6106/KJCEM.2013.14.1.144
Design is an iterative, generative, and multidisciplinary process by its nature. Iteration occurs often in most of the engineering design and development projects including construction. Design iterations cause rework, and extra efforts are required to get the optimal sequence and to manage the projects. Contrary to simple design, isolation of the generative iterations in complex design systems is very difficult, but reduction in overall iterations is possible. Design depends upon the information flow within domain and also among various design disciplines and organizations. Therefore, it is suggested that managers should be aware about the crucial iterations causing rework and optimal sequence as well. In this way, managers can handle design parameters related to such iterations pro-actively. There are a number of techniques to reduce iterations for various kinds of engineering designs. In this paper, parameter based Design Structure Matrix (DSM) is chosen. To create this DSM, a survey was performed and then partitioned using a model. This paper provides an easy approach to those companies involved in or intend to be involved in "design and build projects".