• Construction Engineering and Management
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• v.6 no.4 s.26
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• pp.33-35
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• 2005

• ETRI Journal
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• v.3 no.4
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• pp.107-116
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• 1981

• Korean Architects
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• no.4 s.444
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• pp.73-79
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• 2006

• KSCE Journal of Civil and Environmental Engineering Research
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• v.35 no.1
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• pp.217-227
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• 2015

This study conducted case studies in order to suggest the improvement of GDP (Gross Domestic Product) deflator method which is adopted on calculating fluctuation rate on BTL (Build-Transfer-Lease) sewer rehabilitation projects in Jeju. As a result, because GDP deflator method calculates fluctuation rate by each quarterly, the fluctuation rate of GDP deflator method is higher than it of index adjustment rate method. And GDP deflator method cannot reflect real price because of applying fixed index in whole construction cost for calculating fluctuation rate. Especially, the notification day - the base point influences fluctuation rate and fluctuation amount strongly in GDP deflator method.

• Korean Journal of Construction Engineering and Management
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• v.9 no.6
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• pp.216-224
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• 2008

Recently, most developed countries use the evaluation system about Life Cycle Cost(LCC), and KOREA is beginning to introduce the system to reduce construction expenses. And the introduction of "Technical Proposal Type Bid", which is a new procurement method of Korea government, has made needs for the price-valuation way to evaluate facilities LCC. These days, LCC has been being evaluated by BTL and turnkey project in KOREA, which is suffering from difficulties in evaluating it, because evaluation elements and standards are vague. In addition, LCC evaluation in public construction business except BTL and turnkey is not carried out. Therefore, this paper is to develop a new evaluation index to evaluate LCC both systematically and objectively. The results of this paper are as followings. (1) Necessity and problem analysis of LCC evaluation index, (2) LCC evaluation index deduction from the technical report and question analysis, (3) Application and evaluation method suggestion to practice.

• Applied Chemistry for Engineering
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• v.23 no.1
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• pp.23-27
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• 2012

To make synthetic liquid fuel from biomass such as wood pellet, energy crop and so on, a biomass to liquid (BTL) process by using a biomass gasifier with Fisher-Tropsch (FT) reaction was developed. However $H_2S$, COS and $CO_2$ in syngas from biomass gasifiers resulted in a decrease of the conversion efficiency and the deactivation of the catalyst. To remove acid gases in syngas, a lab-scale methanol absorption tower was developed and the removal characteristics of acid gases were investigated. The methanol absorption tower efficiently removed $H_2S$ and COS with a removal of $CO_2$, so it could be useful process for the BTL process.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.851-854
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• 2008

The purpose of this study is to predict the maintenance cost for military official residence building projects which were ordered for five military official residence building. In conducting this study, the adapted research method was to classify initial investment for each construction of the military official residence building and to estimate maintenance cost. This study was analyzed by studying the estimation of maintenance cost in the apartments and present value analysis method. The results of this research are as follows. 1) The initial investments was analyzed that the total construction cost would be 1,683,286 thousand won ; construction(79%), civil(3%), landscaping(2%), MEP(5%), heating and hot water supply system(5%), and water supply and sanitary system(6%) per square meter. 2) Based on the result analyzed above, the maintenance cost of the apartments was analyzed and then estimated the proper maintenance cost by using maintenance cost estimation method and present a value analysis method.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.392-397
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• 2008

In case of the BTL project for current educational faculties, the proper standards to analyze those said educational standards lack, so it is very difficult to conduct an exact analysis and those improper standards are problematic when proper management and maintenance costs are calculated. In case of such educational facilities, as students have to use them safely for a long time and the quantity of their activities and the status of their physical growth based on individual classes, as well as the features for use by facility and the regional characteristics are different, other standards for maintenance and management must be considered unlike an apartment house. Thus, in this study, to set up the standards considering the features of educational facilities, the maintenance and management level suitable for educational facilities is presented by comparing and analysing that required to maintain and manage an apartment house, targeting the experts specializing management of educational facilities.

• Journal of the Korean Institute of Educational Facilities
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• v.24 no.6
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• pp.19-26
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• 2017

The aim of this study is to suggest an improvement of BTL in Educational Facilities applying the concept of n-BPPP(non-Benefits Public-Private Partnerships). The research is based on four of ninety-nine completed projects of Mixed-use Educational Facilities since 2001. Ninety-nine projects are analyzed and categorized to the typology of architectural program. The architectural programs planned are uniform in function, such as gym, swimming pool, library, info-center, parking etc. The public parking is a main program in the BTL projects, where district offices are involved as partner. The difference between BTL and n-BPPP for educational facilities is the business units. The n-BPPP concerns in regional or district units in order to expand public infrastructure facilities based on the network of schools and local community. And the fund for n-BPPP does not come from the government but from the investors. The economic interest is to reinvest on the maintenance of the facilities. The benefits of n-BPPP will be not only for the Governments in terms of social welfare budgets but also for local residents and students in terms of a variety of high-quality public services. The concept of n-BPPP can be an alternative way for the Mixed-use Educational Facilities.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.1005-1010
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• 2007

According to revision of Construction Technology Management Act (2005), the government ordering construction which cost is more than 10billion won should investigate the value engineering(VE) of a construction. In this sense, the government actively promote plans in 2008 after identifying the examining standards of the investigation on the VE(2007). It is substantial issue to introduce Pre-Qualification(PQ) in oder to restrain unlicensed VE consulting companies or VE consultants. This system will contribute to the quality and the settlement of the value engineering in our country. The reason why the Korea VE Society founded in 2006 is one of the afore-mentioned reasons. Therefore, we try to establish the value engineering of Build-Transfer-Lease Scheme by providing the practical application of construction value engineering and definite procedures through the example of Andong Culture and Art Center's research in one of the various construction fields.