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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 12, Issue 6 - Nov 2011
Volume 12, Issue 5 - Sep 2011
Volume 12, Issue 4 - Jul 2011
Volume 12, Issue 3 - May 2011
Volume 12, Issue 2 - Mar 2011
Volume 12, Issue 1 - Jan 2011
Selecting the target year
Construction Process Analysis of Han-Ok for BIM Based Modern Han-Ok Construction Simulation
Yun, Seok-Heon ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 3~10
DOI : 10.6106/KJCEM.2011.12.3.3
Currently, technologies for industrialization and dissemination for Han-Ok are developed actively. Also BIM technologies are actively developed. However, it is difficult to find the research and study cases for construction method and process for Han-Ok. BIM is the technology for managing information with element as a unit for building design, construction and management, and it is closely related to Han-Ok using assembling method for building construction. We analyzed the basic construction processes for IK-Gong and MinDoRi house, typical types of Han-Ok. Also we developed the Work Breakdown Structure of construction process for Han-Ok and suggested the method for construction simulation using BIM. Simple BIM model of Han-Ok which is Ik-Gong type is used for case study. It was possible to link automatically between 3D elements objects and construction activities about 95% in the case study. More studies of construction method for various type of Han-Ok and rules for link between elements and construction activities are required for Industrialization and dissemination of Han-Ok.
A Study on the Problem Analysis and Quality Improvement in Fabricating Free-Form Buildings Facade Panels through Mock-up Panels Production
Kwen, Soon-Ho ; Shim, Hyoun-Woo ; Ock, Jong-Ho ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 11~21
DOI : 10.6106/KJCEM.2011.12.3.11
The most critical issue in free-form buildings is how to construct the free-formed exterior facade panels. Their geometric complexity delivers many cons and problems in fabricating and constructing their shapes. To construct a free-form building, first of all, its skin has to be chopped into small pieces, which is called panelization. After panelization, the panels go through an optimization process to construct them economically. The panel`s geometries are modified or regenerated through this optimization process. In this study, the panel optimization process of free-form buildings are performed through a case study. The panel shapes of the case study are modeled with Digital Project. To test the constructability of the various panels, 8 mock-up panels are made and laser scanning technology is applied to measure the preciseness of the panels manufactured in comparison with their original design.
Public-Private Collaboration Process for Planning Phase of Urban Renewal Projects
Lee, Jong-Kweon ; Park, Hyeon-Soo ; Koo, Kyo-Jin ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 22~30
DOI : 10.6106/KJCEM.2011.12.3.22
In the planning phase of domestic urban environment maintenance and improvement projects, a particular problem is the increase in service expenses and project cost with the establishment of plans under circumstances that exclude the residents or have incomplete consent from them and the public organization. This delays the promotion of the project. This study aims to resolve such problems by proposing a measure to introduce a privatepublic consultative body for residents and the relevant departments of the public sector, to encourage them to participate and establish plans together from the beginning. This is expected to contribute to the smooth promotion of the project, as it would remove the conflicting factors that are expected to be generated in the project implementation phase before they could emerge.
A Study on the Requisite Elements of LCCO
Evaluation System at Planning Stage of Building
Baek, Cheong-Hoon ; Tae, Sung-Ho ; Roh, Seung-Jun ; Lee, Joo-Ho ; Shin, Sung-Woo ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 31~41
DOI : 10.6106/KJCEM.2011.12.3.31
evaluation programs previously developed in Korea involve limitations in establishing strategies of reducing environmental loads to optimal level in a way to put in materials directly after designing. Therefore, this study has the purpose to extract and propose elements required for the establishment of highly accurate system by counteracting swiftly in a method with high energy efficiency over cost at planning stage. To that end, existing
evaluation programs in Korea and abroad were compared and analyzed, and in the planning stage, GEM-21P and Carbon-navigator intended for the establishment of building energy performance improving strategy were selected as the evaluation program for survey. On such basis, after comparison and analysis between
calculating methods and system structures of the two programs, elements required for system establishment that can evaluate life-cycle environmental loads of building in planning stage were proposed.
Subject Selection Model of Green VE for Sustainable Design
Song, Chang-Yeob ; Moon, Hyun-Seok ; Hyun, Chang-Taek ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 42~52
DOI : 10.6106/KJCEM.2011.12.3.42
As environmental issues are rising recently efforts to reduce environmental stress are emerging in all industry segments. Especially environmental impact of buildings occupy a critical portion, so each country is operating green building rating system for life cycle of buildings. Accordingly green building rating system for every facility is operating in Korea. And acquisition of grade I for building energy efficiency is mandatory for every new public buildings since 2010. To design green building efficiently and systematically eco-friendly elements should be considered and checked from the schematic design phase. But in many cases eco-friendly elements are checked at the end of constructed design phase. So applying eco-friendly elements at the value engineering process, which is performing through schematic and constructed design phase, could make a efficient and systematic green building design. Value engineering process is divided into pre workshop, workshop and post workshop stages. And subject selection in pre workshop stage is the step that finds out the subjects which has the great possibility to be improved to perform efficient value engineering workshop. So this study present the Green VE subject selection model to select the most considerable eco-friendly subjects in projects.
A Study on the Improvement of Engineering and Construction Supervision Guarantee System in Korea
Lee, Yong-Hee ; Choi, Jae-Ho ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 53~61
DOI : 10.6106/KJCEM.2011.12.3.53
After several collapse accidents of large structures in the early 1990s in Korea, the government enacted a law that architectural, engineering and construction firms are obliged to have insurance for projects over a certain size. Particularly, with regard to insurance in design and construction supervision works (i.e. engineering insurance), although several operation-based problems were pointed out from practitioners, still little research has been done on analyzing current regnlartory and operational state and suggesting policy alternatives. Hence, this study applies Delphi technique to solicit current operational problems and propose a series of improvements on engineering insurance based on interview surveys targeting major market participants: municipalities, engineering firms, and insurance companies. Key findings culminate in adopting guarantee limits based on credit evaluation, abrogating joint surety, covering a loss of life, increasing insurance entrance fee, extending time covered, and etc. Reaching a consensus on the proposed alternatives between the market participants will form the foundation for sound developments of construction design and engineering industry.
Development of Information Management Model for Construction Electronic Manual using Collective Intelligence
Park, Moon-Seo ; Kim, Jung-Seok ; Yu, Jung-Ho ; Lee, Hyun-Soo ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 62~72
DOI : 10.6106/KJCEM.2011.12.3.62
As the construction industry is becoming large and complex, it is difficult to understand the overall business workflow and provide the required information. Accordingly, researches on the introduction of Interactive Electronic Technical Manual (IETM), used in manufacturing/maintenance industry, is being carried. In the case of construction projects, Frequent changes of relevant information occur according to changes in the project environments, so it is difficult for administrators to gather and organize the information. Therefore, this research suggests the Information Management Model for Construction Electronic Manual using Collective Intelligence to support the information changes, by expand the information mangers from the system administrators to the whole users and verify the model by applying the model to Urban Regeneration Electronic Manual.
Optimum Delivery Frequency for Reducing Construction Logistics Cost under a Carbon Taxation
Park, Moon-Seo ; Chun, Myung-Hee ; Lee, Hyun-Soo ; Hwang, Sung-Joo ; Jang, Myung-Houn ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 73~82
DOI : 10.6106/KJCEM.2011.12.3.73
The term `green` has become an important way of survival for the construction industry in 21th century in accordance with the emergence of the environmental crisis due to the climatic change. Especially the policy of carbon taxation, planed to be introduced from 2012, is expected to be a considerable burden to the construction industry which has abundant carbon emission during the resource transportation due to the complexity of resources and local distribution of the construction sites. In this regard, this study shows an optimizing strategy for delivery frequency, which downsizes the net distribution costs based on the assumption that, despite of its other advantagements, the frequent small lot mode of JIT delivery would take negative effects due to the increase of costs of transportation and carbon emission once the carbon taxation policy carried out. To simulate the efficiency of the management strategies, the System Dynamics modeling has been used. The results show that the frequent small lot transportation strategy is now always efficient method to these changes, and that the frequency of transportation should be re-determinated according to the extent of the imposition of carbon tax. This study provides the conceptual frame for an efficient management of transportation system of the construction industry, showing necessity of change of the resource transportation systems through analysing JIT deliver system in accordance with the global changes in environmental economy.
Analysis of Construction Management Business Survey Index
Lee, Eui-Dong ; Kim, Han-Soo ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 83~90
DOI : 10.6106/KJCEM.2011.12.3.83
Although the CM(construction management) market in Korea has shown rapid growth, unlike other market sectors, there has been lack of a system by which the economy trend of the CM market can be analyzed. The objective of the paper is to analyse and identify key characteristics of the CM market as of the third quarter of 2010 by using the CMBSI(Construction Management Business Survey Index) which was proposed in the previous study. In the paper, the CMBSI is used as the main index along with other five supplementary indices. The use of the CMBSI can contribute to enhancing the understanding of CM market situation and prospect, and also to providing information for CM policy and regulations.
Evaluation Method of Green Construction Technologies Using Integrated LCC and LCA Analysis
Kim, Yoon-Duk ; Cha, Hee-Sung ; Kim, Kyung-Ra ; Shin, Dong-Woo ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 91~100
DOI : 10.6106/KJCEM.2011.12.3.91
Green technologies of buildings are spreading for saving resource and energy consumption during life cycle of buildings. However, selection of optimized the technologies for applying projects is needed a lot of time and costs. Therefore prioritization is necessary to apply the technologies for buildings. An evaluation of economic value for the technologies is significant for prioritization of the technologies, however, the current evaluation system of economic value for technologies is not reflected the accurate features of the technologies. Green technologies have the objectives for reducing the emission of CO2 and saving the cost during the whole lifecycle of buildings. Thus the evaluation of economic feasibility for green technologies is needed to include the economic value from improving the environment. This paper developed the economic evaluation method integrated with LCC and LCA to accurately analyze the economic value for green technologies. Moreover, this paper drew the priority of the technologies by conducting case studies with the integrated method and analyzing the results with AHP. The conclusion of case studies, Green technologies is worth more if to include the economic value from improving the environment. Then in analysis of priority, Green intelligent component technologies were rated the highest. The conclusion of the study is able to utilize the supporting tool for making decision to select the optimized technologies for the projects and precedence study for developing future research of prioritization for green technologies. The future study for improving the developed method will supplement the various evaluation factors and apply the detailed weight to analyze the priority of green technologies.
Strategies for developing the Appropriation Method of the Construction Quality Cost
Park, Kyeong-Geun ; Park, Yun-Chul ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 101~111
DOI : 10.6106/KJCEM.2011.12.3.101
Clients ought to Appropriate the cost of quality management for contractors based on Construction Technology Management Act. The costs of safety management and environment reservation are separately estimated. and the quality management cost is added up to secure the construction quality required on sites. However, the sufficient cost for quality management was not allowed to the contractors, due to the viewpoints of the clients that the quality management should be one of the duties of contractors. In addition, an Account-related legislation enacted a provision of the labor cost of quality management as the one that should be included in the indirect labor cost. From the continuous survey the quality management cost is currently estimated by 0.2% of the total project cost and the contractors protest the portion of the quality management cost is insufficient. Thus, this paper aimed to provide the bases of estimation of the actualized quality management cost considering the viewpoint of contractors.
A Comparative Study on the Usage Level of Construction Management Services during Pre-Construction Stages - Focused on Public and Private Building Projects -
Cho, Hong-Keun ; Kim, Han-Soo ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 112~120
DOI : 10.6106/KJCEM.2011.12.3.112
Since early 2000s, the use of construction management(CM) in the public and private building sectors has rapidly grown in Korea. In addition, the use of CM services during pre-construction stages has been increasingly recognized as a critical factor to succeed in construction projects. Understanding clients` needs of pre-construction CM services is important for CM firms to strategically prepare and cope with market needs. The objective of the paper is to investigate and compare the usage level of CM services in public and private building projects during pre-construction stages, and to identify key characteristics and implications for CM firms. The paper identified that although there are some differences in CM service needs between public and private sectors, time management and cost management commonly showed the higher usage level.
A Study on Early Termination Payment Option of BTO PPI Projects
Shin, Sung-Hwan ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 121~130
DOI : 10.6106/KJCEM.2011.12.3.121
Real option values of early termination payment for selected BTO PPI projects are studied using binomial models. Two cases of early termination payments are considered; an option with the condition of private participants` default, and an option without the condition. Values vary depending upon parameter values such as revenues, costs, discount rates, debt ratio, and volatility of revenues. For selected projects, the option values without the default condition are estimated as 1%~7% of total project costs, whereas the option values with the default condition are estimated as 0%~1.89% of total project cost. When actual revenues differ from the forecasted revenues, apparently the option values deviate from the values based upon the forecasted revenues. When actual revenues fall short of the forecasted revenues, the option values increase by a large amount whereas the option values decrease by a small amount in the opposite case. This implies that the option values can be quite bigger than the values based upon the forecasted revenue especially when the revenue forecast uncertainty is large. This study is expected to play an important role in improving the early termination payment option policy of the government in PPI projects in Korea.
A Study on the Cost Estimating Method based on Spatial Unit Focused on Improving Limitation Caused by Lack of Spatial Information of the Cost Based on Work Type
Lee, Ki-Sang ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 131~139
DOI : 10.6106/KJCEM.2011.12.3.131
In this Study, the Cost of Public Facility Construction in the VE Cost Model, and the Progress of the Construction Site Management, and Cost due to the Lack of Cpatial Information in Dispute Cost Work Type Recognize the limits of Historical Information, and to Overcome the Perception of Cost and Space Systems Unit In the Process of Transition that Began Seeking Ways to Improve Through this Study, Different Parts of the Proposed Area of Construction Work Unit System, the Core of Calculating Hourly and Detailed Engineering Information and Cost Information Generated Extension to Configure the Construction Unit in Every Space, Every Work Unit System, All Materials That Make Up Work Unit System, Unit Labor Costs, And All of the Configuration Items Enables Precise And Multidimensional Understanding is That.
Development of Process Model and Software for Evaluation of Privately-funded Infrastructure Projects
Jeng, Pyung-Ki ; Baek, Hyeon-Gi ; Seo, Jong-Won ;
Korean Journal of Construction Engineering and Management, volume 12, issue 3, 2011, Pages 140~149
DOI : 10.6106/KJCEM.2011.12.3.140
The government introduced private infrastructure projects in order to reduce its financial burden by introducing private sectors efficiency and creativity and by utilizing their funds. Through revision, the act on the private investment of the infrastructure, many changes were made in the private investment system. The evaluation task to assess the project proposer`s capability and to select a promoter is regarded as the most important process for fairness and transparency of the project. In this study, the improvement of project plan evaluation task of current private infrastructure projects is proposed based on the standard guideline for evaluation procedure of private infrastructure projects provided by Korea Development Institute. In addition, software program for evaluation procedure is made to improve the efficiency and enableconvenient evaluation task.