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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 9, Issue 6 - Dec 2008
Volume 9, Issue 5 - Oct 2008
Volume 9, Issue 4 - Aug 2008
Volume 9, Issue 3 - Jun 2008
Volume 9, Issue 2 - Apr 2008
Volume 9, Issue 1 - Feb 2008
Selecting the target year
A Study on the Construction Equipment Management System for Strengthening Global Competitiveness
Lee, Jun-Bok ; Kim, Sung-Keun ; Seo, Jong-Won ; Kim, Young-Suk ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 55~65
It is increasingly recognized that the construction equipment play an important role as resources in construction process. The number of registered construction equipment in korea is over 320,000 according to the statistics. It is obvious that the machine-intensive construction method achieves productivity and quality improvement as well as safety. The main objective of this paper is to propose improvement plans for construction equipment management system in terms of scope, registration, inspection, rental business, operating licenses, and etc., which are the major issues described in the Construction Equipment Management Law. In order to satisfy the objective, this research conduct survey and interview with experts, and literature review on domestic and overseas related laws and regulations. The results of the research are about 20 issues for improvement plans for the better management system, so the further in-depth study on each issue will be recommended for the practical application to the law.
Development of Major Functions of Visualization System for Construction Schedule Data in Plant Project
Kang, Leen-Seok ; Moon, Hyoun-Seok ; Ji, Sang-Bok ; Lee, Tae-Sik ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 66~76
Plant project is a complex project that consists of civil engineering, building, mechanical and electronic works. The schedule management is one of important factors in plant project because the construction duration of the project is very short comparing with the other construction projects. Specially, 4D CAD system needs to visualize construction schedule information in those complex projects. This study suggests methodologies for improving 4D CAD functions by considering those project characteristics. To develop a plant 4D CAD system, this study includes to develop new functions by analyzing actual schedule information from the plant construction sites.
Disposal Process Improvement of Construction Waste through Identifying Factors Obstructing Reduction and Recycle of Construction Wastes
Kim, Jae-Moon ; Kim, Jee-Hye ; Cha, Hee-Sung ; Shin, Dong-Woo ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 77~86
On account of increasing interest of substantiality in these day, it is needed to make an effort to establish an environmentally sustainable production system for the construction works. Although practical affairs and researches are in progress to reduce and recycle construction wastes, as a result of a research, there are still obstructive factors on waste reduction and recycling which they don't interact efficiently between waste disposal process of the construction area and waste disposal company. As a plan to revitalize reduction and recycling of construction wastes, this research focuses on finding obstructive factors and giving solutions to reduce and recycle construction wastes which comes from construction process and construction industries. To meet the needs of the research, firstly relatively significant construction wastes (concrete, soil, brick, block, asphalt, plastic, lumber) were identified. On site level interviews with management of disposal companies and construction sites were conducted as well, focusing on typical waste disposal process. Throughout this interviews, obstructive factors were conducted. A result of the research, the authors suggest an improved approach on disposal and recycling for construction waste by prioritizing the identified factors and ranking the importance level of each factor. And, by identifying factors obstructing reduction and recycle of construction wastes, this research suggests improved disposal process of construction waste.
Development of Historical Data Selection Model Using Non-parametric test in Public Sector - focused on Reinforced Concrete Works of Multi-housing Projects -
Lee, Hyun-Ki ; Jeon, Jae-Yong ; Park, Sung-Chul ; Hong, Tae-Hoon ; Koo, Kyo-Jin ; Hyun, Chang-Taek ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 87~95
The government wants to apply the construction cost estimating method based on historical data published in the first six months of 2004. Construction companies, however, require the proposed cost estimation model, to be improved which makes it difficult to predict a reasonable construction costs. This paper presents an improved historical data selection model after analyzing the problem of previous method throughout comparing contracted unit prices of reinforced concrete works selected by the previous model to market prices. The model which can select more feasible data would assist participates such as general contractors and sub-contractors to earn a proper profits.
A Benchmarking Study on CM Fee Estimation
Kim, Sang-Bum ; Lee, Jeong-Dae ; Kim, Jae-Wook ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 96~106
The Korean Construction Industry significantly contributed to the Korean economic development not only by preparing the domestic infrastructure but also by successfully conducting various international projects. However, major incidents such as the collapse of Sung-Su Bridge and Sam-Pung Department Store along with stagnation of Korean Economy have raised questions about underlying systematic problems of the Korean Construction Industry. As a solution to resurrect the Korean Construction Industry, the Construction Management (CM) system introduced in late 1990's and increasingly utilized as an innovative delivery system. Despite of the fast growth of CM, the performance of CM has not been up to the hype and low CM fee has been identified as one of the main reasons of unsatisfactory CM performance. Therefore, this research attempted to propose ways of improving 'CM Fee Guidelines' published by Korean Ministry of Construction and Transportation by conducting a benchmarking study on Global Standards of estimating CM Fee. International organizations benchmarked in this research include CMAA, ASCE, DOL, DOE, etc. Various investigation and analysis revealed that Korean 'CM Fee Guidelines' need to significantly modified comparing to Global Standards. This research also tried to prepare recommendations to improve the CM deliver system focusing on the 'Method of CM Fee Estimation' and Selection of a CM firm as an owner's agent.
An Assessment of Technological Competitiveness in Core Products of Foreign Design & Construction markets
Choi, Seok-In ; Kim, Sang-Bum ; Lee, Young-Whan ; Kim, Woo-Young ; Jang, Hyoun-Seung ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 107~117
In this study, surveys and interviews are used to evaluate technological competitiveness of each product with respect to that of foreign leading firms, for seven leading domestic construction products which have been determined to have competitive edge in offshore markets, Such evaluation provides a more in depth study than previously conducted research, and is meaningful in that corporate level, rather than industry level, perspective is projected. Major findings of such evaluations are the following. First, as expected, it has been evaluated that domestic technological competitiveness in desalination plant and power plant has reached the point where it can compete with foreign leading firms. Moreover, a noteworthy result of the evaluation is that development program sector, including urban development of satellite cities, has reached considerable level of competitiveness in offshore market. In the case of the development market, domestic firms have accumulated sufficient experience in domestic market and engineering technology is not a decisive factor as in plant sector, and these factors lead to such an evaluation. Second, in the cases of gas, oil refinery and petro-chemical plants, domestic products' technological competitiveness that can contest in offshore market is still centered around production and construction. On the other hand, there are still weaknesses in license technology and basic design capabilities, which constitute the "value added" area. Third, skyscrapers, a promising product in offshore construction market and a product group which domestic firms have much performance record and projects in progress both in domestic and offshore markets, are considered. While direct comparison between skyscrapers and plant sector is not feasible, with the exception of production and construction, overall domestic capability in this sector has been assessed to be the lowest amongst those products that were surveyed. Fourth, it has been indicated that competitiveness is relatively higher in common technology than in key technology. In project management capability, it has been assessed that there are weaknesses in procedure document area. Also, a characteristic is the point that low overall assessments have been given across all product groups for corporate and management areas, not technological areas. Especially, financing, contracting/claim, risk management and investment on research and development received low evaluations. Fifth, it has been assessed that overall corporate and governmental supports are weak. This result is especially evident for corporate management and support areas across all product groups surveyed.
Improvement Factors for Reinforced Concrete Firm against Removing the restriction of Construction Market Activation
Park, Jeong-Ho ; Jun, Hun-Bai ; Cho, Kyu-Man ; Hong, Tae-Hoon ; Koo, Kyo-Jin ; Hyun, Chang-Taek ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 118~125
Recently, the Ministry of Construction and Transportation announced a notice of the legislation related to remove the restriction of construction market activation in advance. he removement is an overwhelming change of the business structure in the Korean construction industry and has a far-reaching influence on general and trade contractors. The purpose of this research was to suggest improvement factors to survive an excessive competition in reinforced concrete market. This research did SWOT analysis to examine the strength, weakness, opportunity and threat of reinforced concrete firm, and established business strategies. The factor analysis was also applied with questionnaire survey to staff in charge of reinforced concrete company. It is expected that the suggested improvement factors can give effective business strategies to reinforced concrete firm. Furthermore, trade contractors having difficulty in a bottleneck in management can get help from the result of this research.
A Study on a Pattern Analysis of Quality Differentiation on Apartment Housing
Cho, In-Sig ; Park, Tae-Keun ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 126~133
Current changing to the customer-oriented market naturally causes suppliers to meet an age of competition on the quality. In order to plan housing meeting this quality competitiveness era, I set up the type classification system of quality differentiation for the unit of apartment housing by executing differentiation cases of unit quality and type analysis of the object. The system is consist of 3 classification systems by quality element, user convenience element and product element as follows: First element is to classify quality element on the basis of plane and interior elements, architectural elements and second one is user convenience element relating facility to classify environment-oriented, safety, energy saving and convenience. The other one is the product element to classify furniture, installing product and convenient product. I believe that this classification system will be useful to determine any classification elements of product for product positioning and product planning in the stage of marketing planning of apartment housing in the future.
A Study on the Risk Assessment Methodology and Application for International Plants Construction
An, Sung-Hoon ; Lee, Young-Nam ; Jo, Ho-Kyoo ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 134~142
Recently, international plants construction markets are expending. Specially, oil/gas plants constructions in Middle-East are booming. However, international plants construction projects are high risky. So a risk assessments and managements methodology for international plants construction is needed. In this study, the risk assessment methodology for international plants construction is proposed on the basis of the literature review in the international construction risk assessment methods and the knowledge of experts explored by interview. In addition, case study in Middle East was applied for reviewing these risk assessments and managements methodology for international plants construction.
Evaluation of Best Value for Safety Facilities on Highway Using Risk-based VE Approach - A Case Study of Median Barrier -
Ji, Dong-Han ; O, Young-Tae ; Choi, Hyun-Ho ; Kim, Sung-Hun ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 143~154
Since the concerns for safety of highway traffic safety facilities inherent in various environmental risk is increased, systematic performance, cost, and effect analysis process is needed for this. In case of median barrier among various traffic safety facilities, quantitative risk assessment is inevitable because it has lots of direct/indirect risk factors. Thus, this study suggests an advanced VE(Value Engineering) approach incorporating quantitative risk analysis. For the applicability, suggested VE approach considering alternative 1(140cm) and 2(127cm) is applied to median barrier in fields. Also, major improvement objects are extracted from governing factors of cost and performance based on functional analysis. It is concluded that the proposed risk assessment methodology will provide rational and practical solutions for best value and the approach could effectively applied for various traffic safety facilities by slight modification of suggest process.
Estimation of Construction Equipment Expenses - Bulldozer and Loader -
Huh, Young-Ki ; Kim, Kyung-A ; Ahn, Bang-Ryul ; Tae, Yong-Ho ; Park, Hee-Sung ; Kim, Chang-Wan ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 155~166
The Equipment Expenses section of the Poom-Saem that is used for Construction Cost Estimation of public sectors in Korea has been rarely revised, and so does not reflect changes of Construction Equipment technology and construction methods, since it was established based on data from Japan and the U.S in the early 1960s. In order to make reasonable estimation of equipment expenses for a bulldozer and a loader, the domestic and overseas documentary records were investigated. Further, 16 construction sites were visited, and 20 Construction Equipment leasing services were surveyed. The optimum level of each item which consists of equipment costs was revealed based on the result of the analysis on the figures of equipment costs calculation from the Poom-Saem and the collected data. The research will be the foundation for applying the rapid development of Construction Equipment and technology to the appropriate cost estimations and the ground work of related studies.
Analysis of Construction Contractors' Profit Level
Kim, Han-Soo ; Lee, Hyun-Ki ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 167~175
An objective of companies' existence is to make profits and grow steadily. Judging what is reasonable or excessive profit for an industry or a company by a profit figure is practically impossible because it is a matter of value judgement not just fact judgement. But recently construction companies' profit level is under severe argument. The objective of this study is to investigate the level of construction companies' profit level and compare it with other industries in order to identify facts and characteristics in relation to construction companies's profit level.
Reading Performance Test of RFID Technology for Curtain Wall Material
Kim, Yong-Bae ; Song, Jae-Hong ; Yoon, Soo-Won ; Chin, Sang-Yoon ; Kwon, Soon-Wook ; Kim, Yea-Sang ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 176~186
The radio frequency identification (RFID) technology allows various forms of applications in many industries including construction. and in Korea, RFID has already been adopted for the use in daily labor control, logistics monitoring of ready-mix concrete, supply chain management of long-lead items, such as structural steel members and curtain walls. Even though RFID tags have varied reading performances depending on various factors including material of tracking target and surrounding environment, there is no information on how much the reading performance of an RFID tag can be achieved against a specific construction components or materials. Therefore, the objective of this research is to identify the actual reading performance of various RFID technologies and to derive a method to maximize the reading performance for the use in the supply chain management process of curtain wall components.
Inventory Management in Construction Operations Involving on-site Fabrication of Raw Materials
Im, Keon-Soon ; Han, Seung-Heon ; Jung, Do-Young ; Ryu, Chung-Kyu ; Choi, Seok-Jin ;
Korean Journal of Construction Engineering and Management, volume 9, issue 1, 2008, Pages 187~198
There are usually plenty of material inventories in a construction site. More inventories can meet unexpected demands, and also they may have an economical advantage by avoiding a probable escalation of raw material costs. On the other hand, these inventories also cause negative aspects to increase costs for storing redundant inventory as well as decreasing construction productivity. Therefore, a proper method of deciding an optimal level of material inventories while considering dynamic variations of resources under uncertainty is very crucial for the economical efficiency of construction projects. This research presents a stochastic modelling method for construction operations, particularly targeting a work process involving on-site fabrication of raw materials like iron-rebar process (delivery, cut and assembly, and placement). To develop the model, we apply the concept of factory physics to depict the overall components of a system. Then, an optimal inventory management model is devised to support purchase decisions where users can make timely actions on how much to order and when to buy raw materials. Also, optimal time lag, which minimizes the storage time for pre-assembled materials, is obtained. To verify this method, a real case is applied to elicit an optimal amount of inventory and time lag. It is found that average values as well as variability of inventory level decreased significantly so as to minimize economic costs related to inventory management under uncertain project condition.