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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
Real Time Safety Management Framework at Construction Site based on Smart Mobile
Park, Moonseo ; Kim, Euijun ; Lee, Hyun-Soo ; Lee, Kwangpyo ; Suh, Sang-Wook ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 3~14
DOI : 10.6106/KJCEM.2013.14.4.003
Recently, as the size of construction projects is getting bigger and higher, construction disasters have been being serious such as death, also it is hard to manage efficiently since there are plenty of informations about safety management. Thus on the spot & real time safety management is required and one of the ways to support these needs, conjunction with Information Technology(IT) has been being noticed. Accordingly, Personal Digital Assistant(PDA), Palmtop Computer and Tablet Personal Computer and so on have been adopted. However another inefficient sides are showed up such as limitation of equipment(weight, inconvenience of control and others). Meanwhile, exchanging and processing data are improved at wide area due to advance of mobile communication and introduction of smart mobile, which is a simple and convenient, is a proven at many aspects. In this research, to support effective safety management, the framework is realized in connection with smart mobile with finding the problems of safety management and deriving demands. Two smart mobile applications, which are Safety Management application and Safety Guideline application, enable that safety management in real time, less re-work and using safety information.
Performance Measurement Method and Case Study for BIM based Construction Simulation System
Jun, Ki-Hyun ; Yun, Seok-Heon ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 15~23
DOI : 10.6106/KJCEM.2013.14.4.015
Because that construction project is usually uncertain and the plan of it changes frequently, it is difficult to make a reliable and feasible plan for it. As the BIM technology is developed, we can simulate the future of the construction project visually and make more reliable plan. However, data production efficiency is not so high, it is used just for animation and presentation usage. Although, a lot of construction simulation systems are developed, it is difficult to measure performance of them. In this study, we defined the construction simulation work process and the scenarios to measure performance of them. The performance measurement method using simulation process scenario can make possible benchmark test of them.
Time Series Analysis and Forecast for Labor Cost of Actual Cost Data
Lee, Hyun-Seok ; Lee, Eun-Young ; Kim, Yea-Sang ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 24~34
DOI : 10.6106/KJCEM.2013.14.4.024
Since 2004, the government decided to gradually introduce Actual Cost Data into cost estimate for improving problems of below-cost tendering and to reflect fair market price through competition and carry contract efficiently. However, there are many concerns that Actual Cost Data has not reflected real market price, even that has contributed to reduce the government`s budget. General construction firm`s burden for labor cost is imputed to specialty contractors and eventually it becomes construction worker`s burden. Therefore, realization of Actual Cost Data is very important factor to settle this system. To understand realization level and make short term forecast, this paper drew construction group of which labor cost constitutes more than 95% of direct cost, and compares their Actual Cost Data with relevant skilled workers`s unit wage and predicts using time series analysis. The bid price which is not be reflected market price accelerates work environment changes and leads to directly affect such as late disbursement of wages, bankruptcy to workers. Therefore this paper is expected to be used to the preliminary data for solving the problem and establishing improvement of Actual Cost Data.
Analysis of Modeling Errors for BIM-based Facility Management Systems
An, Hyokyung ; Lee, Seulki ; Yu, Jungho ; Son, Bosik ; Jang, Hyounseung ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 35~45
DOI : 10.6106/KJCEM.2013.14.4.035
Facility Management is the longest in the building of life cycle. Because it occupies more than 80% of cost, the phase of Facility Management has to be managed and has to be perceived as important as design and construction phase. The method to manage building more efficiently is the introduction of Facility Management System used by CAD and database. But information Requirement is now input by hand in the most Facility Management System. This study aims to analyze the example of applying BIM in the Korea or abroad and the errors of this were deducted by many phase. Lastly, the possible solution is suggested in order to be used in the Facility Management System. This study`s benchmarking is COBIE which is developed by the COE(Corps of Engineers) and now popular in the world. The suggestion in this study is the method that I have already mentioned is helpful for a designer to do modeling when a designer uses BIM S/W(software). To be more specific, the method plays a side role in helping data input considering the phase of Facility Management.
Analysis of Factors Influencing the Construction Business Management Success
Han, Jin-Taek ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 46~54
DOI : 10.6106/KJCEM.2013.14.4.046
This research outlined the factors influencing the business management success via analyzing a survey of business principles. The research process has been tested in comparison of both financial factors, which come out of objective data and non-financial factors so relevantly prioritized by combining these factors. In order to specify the factors, a check-list and analyzed essential features of category have been done with interviews and surveys. As consequently proceeding, the authors could deduce that non-financial but analytic factors such as business do-able, technician workability, compensation and benefits etc. play major roles in construction sector. The outcomes consider a construction business as fundamental human labor job as opposed to a manufacture business. On reasoning necessarily more objective research works to be done as developing this research`s outcome, it is meaningful in suggesting the pivotal factors influencing the construction business management. Therefore, this research is expected to guide the direction to induce the improvement of business management to be done by further exemplary researches.
A Case Study of GHG Reduction Based on Electricity Consumption Pattern of Individual Rooms : In case of Seoul National University
Kim, Seok-Young ; Park, Moonseo ; Lee, Hyun-Soo ; Kim, Sooyoung ; Jung, Hye-Jin ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 55~64
DOI : 10.6106/KJCEM.2013.14.4.055
As GHG target management is introduced in Korea, designated establishment takes responsibilities to reduce more than 30% of expected GHG emission until 2020. Although decreasing GHG has been requested to universities which consume great amount of energy, there are difficulties to apply high cost countermeasures. Therefore, this research suggest a low cost, easily-applicable energy saving method, and derive potential GHG reduction amount in the case of SNU, Kwan-ak campus. First of all, 11 rooms of different use were chosen as the samples, and energy consumption in each room was measured. Standard models for each room were built through researching on the electric devices in each room. Moreover, energy consumption was computed for each devices through analyzing the pattern of electricity consumption. 32 GHG reduction technology and action program were chosen, and they were applied to the standard models for individual rooms. Through multiplying energy reduction rate of each program to energy consumption of each electric device, maximum energy reduction of each electric device is derived. Through that, Maximum GHG reduction for individual rooms and each month and the total GHG reduction capacity of Kwan-ak campus were computed. It was found out that approximately
-eq can be reduced, when reduction technology and action program suggested by this research are applied. It appeared 24.48% of requested reduction amount to SNU can be reduced, till 2016.
A Study on the Calculation of Organization Scale in Construction Management -Focusing on Building Construction-
Ahn, Sang-Hyun ; Kim, Jin-Dae ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 65~72
DOI : 10.6106/KJCEM.2013.14.4.065
While growth of domestic CM market has slowed down due to economic recession, it recently shows sign of scale as some public agencies are relocating their headquarters. Since the introduction of CM system, a number of client organizations have acquired construction project management capabilities, however, sufficient efforts are not made to estimate the size of construction project management organization. This study drew a method for estimating the size of the organization managing construction project by utilizing statics analysis and project costs per member based on 10 public construction projects and tried to review applicability through case studies. With this study, we would like to make a contribution to achieving smoother work performance and success of the construction project by estimating and allocating proper scale of management workforce.
An Analysis of The Critical Risk Factors in Failure Cases of Lifting Equipment Plans in High-rise Construction Project
Kim, Nam-Gyun ; Kim, Yea-Sang ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 73~83
DOI : 10.6106/KJCEM.2013.14.4.073
Recently, not only around Korea but also other countries shows a pattern of arising high-rise building construction project which was delayed or aborted during global economic crises and recession. Although the market starts to stretch, It is getting competitive to win a contract in high-rise construction project between contractors due to lack of competitive advantage especially to Korea contractors. To get that, Korean contractors needs lifting equipment plan. But currently, they depend on the empirical methods and that cause schedule delay, not controlled cost management problem. Therefore, this research is to improve the accuracy of Lifting plan by analyzing the current issues of Lifting plan system and deducing the types of failures with planning factors, as well as analyzing the impact on schedule and cost control and safety management by each failure mode. Also, by analyzing detail risk factors per Lifting Equipment with FMEA, to infer the critical risk factor on high-rise construction project.
Deduction of Considerations During Design and Construction by Analysing Domestic and Abroad Case Analysis of Freeform Building Envelope
Ryu, Han-Guk ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 84~96
DOI : 10.6106/KJCEM.2013.14.4.084
Recently, architectural design has been changing from formal design to freeform design due to the digitalization of construction industry. Especially, the formal design has been accepted as a design trend recently and applied many times as a design concept in the architectural design competitions such as turn-key. However, various deflects such as water leak and cracks have been occurred because the traditional construction methods had been applied without any revision or adaptation of the formal construction method for the freeform building construction. Design and construction of freeform building has been developed as an new method in order to solve the problems and minimize the construction duration and cost for the freeform building. Therefore this research deduced the positive implications for developing freefrom envelope by analyzing the domestic and abroad cases and proposed the considerations during design and construction of the freeform envelope as follows. First, the freeform design should consider the constructability for the freeform envelope. Second, manufacturing technology for the two-way curvature of the unit panel should be developed. Third, exposed concrete form method should be developed for the freeform envelope of concrete. Forth, material characteristics, construction method and facility management should be considered in order to manage precipitation and keep water-proof according to the classification of the freeform envelope area.
A Study on the Estimation of Occupational Safety and Health Expense Rate by Safety Environment Change in Construction Industry
Oh, Se-Wook ; Kim, Young-Suk ; Choi, Seung-Ho ; Choi, Jin-Woo ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 97~107
DOI : 10.6106/KJCEM.2013.14.4.097
Occupational safety and health management expense in construction industry means the monetary amount that the purchaser appropriates to prevent various disaster from happening during the construction period by setting aside a certain amount from subcontract based on the construction type and scale. The current appropriation standard of the Ministry of Employment and Labor has been enforced since its stipulation in 1988 although various policy changes for the safety in construction industry, e.g. the development of occupational safety management techniques in construction industry, changes in construction field site environment, cost depreciation, etc., are happening in Korea and overseas. Therefore, it is required at this point to examine whether the current occupational safety and health management expense appropriation is proper or not on the basis of time trend and the changes in the construction industry environment. Accordingly, this study aims at investigating the appropriation of occupational safety and health management expense for construction industry by the construction type and target expense in response to current construction industry environment and proposing the proper appropriation. The above research result proposes the calibration of the appropriation as specified and stipulated by the Ministry of Employment and Labor by the construction type and target expense, which is necessary to reflect the actual condition of the current construction industry environment.
Satisfaction Level and Performance Evaluation for CM Service in Korea
Kim, Won-Tae ; Chang, Chul-Ki ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 108~117
DOI : 10.6106/KJCEM.2013.14.4.108
The domestic CM business market has continued to grow, but its size is relatively small yet in comparison with the total size of the domestic construction industry. Evaluation of CM projects was conducted through questionnaire surveys. Both clients and CM firms showed positive satisfaction levels. Nevertheless, the clients` satisfaction levels were relatively low in safety management, cost management, and document and information management. Superior areas of CM tasks were time management and recovery scheduling, quality control and technical instruction, and design value engineering. On the other hand, inferior areas of CM tasks were claim analysis and dispute resolution, cost estimation, and life cycle costing. Both entities have agreed with the positive effects of CM involvement in terms of cost saving, time reduction, quality improvement, and safety incidents prevention to at least 0~5% extent.
Performance Evaluation System Framework for Natural Disaster Research and Development Projects
Kim, Du-Yon ; Kim, Sang-Bum ; Kwak, Hyun-Jun ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 118~129
DOI : 10.6106/KJCEM.2013.14.4.118
Due to the recent surge in natural disasters, with rising social concerns, investment on research & development (R&D) project in natural disaster mitigation area is continuously increasing. However, current R&D performance management system of natural disaster mitigation area does not properly reflect characteristics and social ripple effects of R&D projects. It is indicated that mainly due to the current performance index consists of easy-quantification factors and the performance evaluation system adopts simple aggregation method. Therefore, the purpose of this study is to develop new performance evaluation system considering characteristics and social ripple effects of natural disaster mitigation R&D projects. To this ends, this study derived 3-dimensional performance measurement index through literature review and natural disaster mitigation R&D projects analysis. Finally, based on the derived performance measurement index, this study suggested new and effective performance evaluation system for natural disaster mitigation R&D projects.
A Comparative Analysis on Safety Evaluation System and Requirement in the Tendering Process of Public Construction Projects - Cases of Singapore and Japan -
Park, Hee-Taek ; Oh, Chi-Don ; Park, Chan-Sik ; Choi, Jin-Woo ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 130~139
DOI : 10.6106/KJCEM.2013.14.4.130
Construction accident rates are reflected in the pre-qualification of public construction projects in order to prevent accidents and facilitate the safety management of construction companies. However, the construction industry is still experiencing an increase in accident rates. Hence, there is a need to strengthen existing safety evaluation systems and requirements in public construction tendering. The objective of this study was to acquire and provide basic data for benchmarking to select tenderers in domestic public construction projects. In Singapore and Japan, safety evaluation systems and requirements are applied based on various aspects in order to screen tenderers. These evaluation systems include safety regulations and institutional requirements, as well as safety performance and safety management plans of respective construction projects. This study recommends that korean public construction projects also apply similar safety evaluation systems which include comprehensive safety criteria in order to decrease accident rates in the industry.
Project Risk Assessment Through Construction Sequence Analyses for Industrial Plant Construction Projects
Lee, Kyusung ; Choi, Jaehyun ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 140~151
DOI : 10.6106/KJCEM.2013.14.4.140
In 2011 and 2012, Korean construction firms awarded around $ 64.5. Billion each year from the overseas market in 2011. This contract value accounted for overwhelming portion of total overseas construction contract values, and this growth is expected to continue for the next decade. However, contract scopes awarded to the Korean construction firms mainly involve detailed design and construction phases due to their competitiveness for the construction techniques. In other words, front-end-engineering-design and construction project management are not considered part of core business due to the lack of project management skills and experience. The researchers focused on development of construction sequence model required to improve construction planning and scheduling skills for the Korean construction firms. The model identifies critical work items and the sequence throughout project execution process. In addition, the researchers developed a risk evaluation method by applying fuzzy theory to the critical construction activities for the industrial plant construction projects. Developed methodology will help project practitioners to develop project schedule in a timely and effe ctive manner and evaluate project risks associated with scheduling process for the industrial plant construction projects.
Economic Analysis for a Tidal Power Plant Project using RETScreen - Focused on the Tidal Power Plant in Asan Bay
Kim, Min-Ock ; Jeong, Keun-Chae ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 152~163
DOI : 10.6106/KJCEM.2013.14.4.152
In this research, we analyse the economic feasibility of a tidal power plant project which can efficiently generate mass, permanent, predictable, and homogeneous electric power. For the economic feasibility analysis, we used the RETScreen that is developed at the CANMET Energy Technology Center in Natural Resources Canada and widely utilized for analysing the economic feasibility and sensitivity of clean energy projects. Results from the feasibility and sensitivity analysis showd that the tidal power plant project in Korea has a enough economic feasibility, and its feasibility increases more as certified emission reductions price and electricity unit price increase. Based on the results from the feasibility study, we can solve the energy problems to be come in near future by constructing the tidal power plants in Korea more aggressively.
Development of Decision Model and Management System to minimize Pavement Utility Cut for Road Facility
Cho, Jin-Young ; Jang, Oun-Sung ; Lee, Min-Jae ;
Korean Journal of Construction Engineering and Management, volume 14, issue 4, 2013, Pages 164~171
DOI : 10.6106/KJCEM.2013.14.4.164
In urban planning, road facility is used not only for the transportation purpose but also for the utility line space purpose such as electrical, gas, tele communication, heating, water, sewer, and so on. However, since these utilities are built by many different groups, it becomes very difficult to communicate each other. Delay in one party can cause another party`s schedule delay but they don`t commuicate often. Also, some delay in utility work can cause frequent pavement cut. And, this will impact on construction cost, schedule delay, low quality, user complain and cost. This study developed spatiotemporal decision model to prevent prequent utility cut for mega project such as new urban development project. In addition, this study developed utility cut management system to manage utility cut schedule under pavement. Finally, developed system was applied to new urban development project and verified there effectiveness.