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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 6, Issue 6 - Dec 2005
Volume 6, Issue 5 - Oct 2005
Volume 6, Issue 4 - Aug 2005
Volume 6, Issue 3 - Jun 2005
Volume 6, Issue 2 - Apr 2005
Volume 6, Issue 1 - Feb 2005
Selecting the target year
The research and correspondence of schedule risk management at the pre-construction phase of curtain-wall
Jung Tae-Sik ; Kim chang-duk ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 71~79
As construction projects have been extremely enormous, complex and special, risk factors have been increased consistently. Therefore, it is very important to identify and cope with the uncertain risk factors in such building constructions for successful project accomplishment. The purpose of this research is to approach practical affairs directly and show detail alternatives of risk factors by extracting the risk factors throughout construction process of curtain wall that is largely influenced on cost, quality, schedule ,safety and following activity. Also, extracting these risk factors make it possible to analyze quantitative risk and decide the priority raking of risk factors. Especially, this research is aimed to provide efficient management of scheduling risk that can make the risk minimize to practical workers who have different degree of knowledge and experience to the construction cite when the risk brings out suddenly.
Predicting Construction Project Cost using Sensitivity Analysis in Stochastic Project Scheduling Simulation (SPSS)
Lee Dong-Eun ; Park Chan-Sik ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 80~90
Activity durations retain probabilistic and stochastic natures due to diverse factors causing the delay or acceleration of activity completion. These natures make the final project duration to be a random variable. These factors are the major source of financial risk. Extending the Stochastic Project Scheduling Simulation system (SPSS) developed in previous research; this research presents a method to estimate how the final project duration behaves when activity durations change randomly. The final project cost is estimated by considering the fluctuation of indirect cost, which occurs due to the delay or acceleration of activity completion, along with direct cost assigned to an activity. The final project cost is estimated by considering how indirect cost behaves when activity duration change. The method quantifies the amount of contingency to cover the expected delay of project delivery. It is based on the quantitative analysis to obtain the descriptive statistics from the simulation outputs (final project durations). Existing deterministic scheduling method apply an arbitrary figures to the amount of delay contingency with uncertainty. However, the stochastic method developed in this research allows computing the amount of delay contingency with certainty and certain degree of confidence. An example project is used to illustrate the quantitative analysis method using simulation. When the statistical location and shape of probability distribution functions defining activity durations change, how the final project duration and cost behave are ascertained using automated sensitivity analysis method
A Model for Deciding Evaluation Weights in Design-Build Delivery Method
Kim Man-Chul ; Koo Kyo-Jin ; Hyun Chang-Taek ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 91~100
Design-build that a single entity performs whole construction process under singular responsibility is one of the project delivery system comes to take expectation effects of time savings, cost saving, and quality assurance. On the other hand, a current domestic method for selecting a design-build contractor is difficult to reflect the purpose of owner and the project characteristics when owner selects the design-build contractor. The purpose of this research is to suggest a model for deciding evaluation weights in design-build which can reflect the purpose of owner and the project characteristics. This research can help owner to select the best suitable design-build contractor for the project.
An Extraction of Inefficient Factors and Weight for Improving Efficiency of the Curtain wall Life Cycle Process
Jung Soon-Oh ; Kim Yea-Sang ; Yoon Su-Won ; Chin Sangyoon ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 101~112
Recently, a curtain wall construction is a exterior finishing components which is most used for shortening time in high-rise building as well as the class of key management factors in cost and schedule control. Also, it is recognized that an effective management for curtain wall process is a major subject to accomplish the project successfully. However, as the current management for curtain wall construction is focused on the construction stage, it makes problems such as errors in business performance, rework by mistakes and duplications, errors and omissions by ineffective information management and there has never been any efficient management from a view of the entire Curtain Wall Life-cycle process. Therefore, the aim of this study is to suggest a stage check point for process improvement in the curtain wall Life-cycle process through current curtain wall process analysis, and then to investigate the cause of waste factors using the Muda method from the Toyota Production System and extract the weighted effects of the waste factors using the analytical hierarchy process method. According to the result, Most of the inefficient factors happened in architectural design stage of the entire curtain wall Life-cycle process and my research identified that detail factors of them are a delay of decision making and an approval in changes, a deficit of engineering capacity and a delay of approval in architectural design drawings by owner, etc.
Construction firm's CRM(Customer Relationship Management) Marketing strategy for housing market Focused on Model House
Choi Ik-Sung ; Kim Jae-Jun ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 113~121
The construction industry has also enolved according to the changes and requirements, therefore it coms to manage the relationships with customers. However, the customer management in the construction industry has not been quite genuine, since it has been mainly oriented for public relations and advertisements of companies. The genuine customer management should not only systemize customer data but also provide strategy to utilize it through managing relationships with customers as well as customer themselves. In this research, I have focused mainly on Model House. Marketing is very important planning & coordination to project. And I know that the development power of new product and promotion strategy as to customer needs and wants. The key factor in housing industry is the analysis of customer's needs that key success factor is execution of action plan to our customer. His success in business is in result of satisfaction for our high quality customer. Therefore the CRM system is add to customer satisfaction and increase earning power to a business
Improvement and Systematization of Pre-Study Work for Design Value Engineering in Construction Projects by Quality Function Deployment
Yang Jin Kook ; Kim Soo-Yong ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 122~132
The importance of design value engineering in construction projects recently is rising, which deal about in reduction of cost and improvement of quality. Especially, From half of this year 2005, It is predicted that the value engineering is necessary to be carried out in the projects having project cost more than 10 billion won. In increasing importance of value engineering, we require a way by which we accomplish value engineering systemically and effectively though it is not common in domestic situation. So, this case study shows a way in carrying out value engineering effectively. As the way is to apply QFD(Quality Function Deployment) in pre-study work of design value engineering, this is expected to contribute as function analysis and reflect the requirement of users or owners.
A Case Study on the Performance Analysis for Applying 6 sigma to a Construction Company
Kim Se-Won ; Hwang Uk-Sun ; Kim Sun-Kuk ; Kim Yong-Su ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 133~141
The object of this study is to present performance by applying six sigma quality management to a construction company. The research method involves to investigate and analyze data regarding six sigma projects in S construction company and a questionnaire survey from the personnel of the S construction company. The results of this study are as follows 1) S construction company utilized the six sigma quality management for 258 projects during the years of 2003 and 2004 and this bring the effect of cost reduction for quality. Moreover, before using the six sigma quality management, the average level of sigma in this company was around 2.8, after using this, the level increased to 3.6. Particularly, the construction management part, the level increased from 1.3 to 2.6.2) respondents recognize that quality management costs by applying six sigma is reduced. but there is only a little operational efficiency because it is In the early stage of applying six sigma quality management.
Experimental Study for the Improvement of an Automated PHC Pile Head Cutter
Lee Jeong-Ho ; Kim Myoung-Ho ; Kim Young-Suk ; Cho Moon-Young ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 142~151
Several advanced countries have been continually developed PHC pile cutting automation machines for improving productivity, safety and quality of the conventional PHC pile cutting work. However, the target work of the previously developed PHC pile cutting automation machines is only crushing the head of PHC pile. Dangerous grinding work is still performed by workers with seven inch hand grinder. In domestic construction industry, the PHC pile cutting work is usually performed by a crusher and three to four skilled workers. Recent analysis results of the PHC pile cutting work reveal that it frequently makes a lot of cracks which significantly reduce the strength of the pile and is labor-intensive work. The primary objective of this study is to propose the end-effector which can effectively break PHC pile without any longitudinal cracks and to develop an automated pile cutting machine having unified grinder and crusher parts through a wide variety of laboratory and field tests. It is anticipated that the development of the automated pile cutting machine would be able to bring improvements in safety, productivity, quality as well as cost saving.
Estimating of Optimal Allowed Distance for Reducing Vibration and Noise Problems by Pile Driving after Drilling Method in Deep Foundation Work
Park Hong-Tae ; Kang Lee-Seok ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 152~163
Pile driving work causes a vibration problem in the construction site using pile foundation and often causes civil affairs by construction noise around the construction site. For the vibration and noise problems, the driving after drilling method rather than the direct driving method is being generalized for reducing vibration and noise. However, this method also causes civil affairs when the driving work is operated in adjacent area. This study suggests a criterion for evaluating an optimal allowed distance for pile driving work by the driving after drilling method. Actual surveys of vibration and noise for pile driving work in seven construction sites were used for developing regression analysis equations. The results can be a standard to estimate the allowed distance to avoid vibration and noise problems in pile driving work for deep foundation.
A Models of Economic Analysis in Safety Diagnosis for Remodeling Strategies of Apartment Housing
Seo Kwang-Jun ; Choi Mi-Ra ; Shin Nam-Soo ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 164~171
The importance of the life cycle cost analysis(LCCA) for apartment housing remodeling projects has been fully recognized over the last decade. Accordingly theoretical models, guidelines, and supporting software systems were developed for the life cycle cost analysis of apartment housing remodeling systems. However, the level of consensus on LCCA results is still low due to the lack of reliable data on remodeling activities for safety diagnosis. in order to predict the reliability based LCCA of the given case, suggested the remodeling strategies level after reviewing other related materials. Apply the real information of the economic index. And based on such analytical measures, remodeling and operation cost and LCC in remodeling strategies level have been predicted; suggests the basic information about remodeling interventions level for the apartment housing. The LCC analysis models and the fuzzy logic based safety assessment presented in this study can greatly contribute to the value-oriented design alternative selection, estimation of the economic analysis, and the allocation of budget for apartm.
A Study on the Development of New SRC Lining Board
Kown Beom-Jun ; Park Do-Uk ; Kim Yong-Su ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 172~180
The purpose of this study is to suggest a new SRC(Steel Ready mixed Concrete) lining board. The research method of this study includes problem analysis of existing lining boards a constant load test and a fatigue test. The results of this study are as follow : 1) the suggested new lining board improves the function and reduce slipperiness than existing lining boards. 2) the strength of the new SRC lining board is analyzed as superior than existing lining boards from the results of constant load test and fatigue test.
Improvement Plan for Domestic Construction Claims & Disputes Resolution Process - Focused on the Construction Bonds -
Kim, Jong-Seo ; Lee Jae-Sub ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 181~189
This study analyzed and summarized claims that took place during the past three years in the Korean construction-bonds market. Specifically, this study first examined the trend of construction-bonds claims. Second, the claims categorized according to the types of projects, suretyships, duration of settlement, amount of repayment and so on. Finally, based upon the analyzed results several suggestions, which will improve the efficiency of construction claim process, were provided.
Digitalizing Technical Documents of Construction Projects Based on Database and XML
Jung Jong-Hyun ;
Korean Journal of Construction Engineering and Management, volume 6, issue 4, 2005, Pages 190~198
This study describes the digitalization of technical documents of construction projects using database for storage and XML for exchange format on the web. First, for this purpose, the requirements for effective digitalization are identified. Second, the strategies for using database and XML are presented. These strategies include the way to store and search for the technical documents, to draw up the XML document for some parts of the technical documents, to arrange the components in their proper hierarchy, to manage the graphics and mathematical expressions in database and XML documents. Finally we discussed the validities of the results of this study by partial implementation for structural design sheets which has all the characteristics of technical documents.