• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2004.11a
• /
• pp.462-467
• /
• 2004

Design-build, which is defined as single source responsibility for design and construction, has been widely used in large public works since governmental formulation of measure for encouraging use of design-build in 1996. However, civic groups and small and medium sized enterprises are highlighting over-competition and unbalanced market shares of conglomerate in domestic design-bid market and insisting on decrease in the use of design-build and absorption into the lowest-price bidding. This study collected information about cost, schedule, quality, new technology adoption from 51 civil design-build projects and measured their performance.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• autumn
• /
• pp.286-289
• /
• 2003

In turn-key projects, escalation of cost by design errors is not allowed because a contractor prepares the design. Therefore, cost escalation by design errors results in increasing the cost of the prime contractor. The rate of profit decreases finally. In addition, design errors bring not only schedule delay but also serious quality problem by unknown errors. This study tries to dissolve problems, that of cost increase. process delay and a falling-off in quality by investigating cause of design errors and presenting a scheme for reducing design errors.

• Korean Journal of Construction Engineering and Management
• /
• v.6 no.1 s.23
• /
• pp.205-211
• /
• 2005

Turnkey projects accounting for some $10\%$ of the total volume of the projects in the domestic market have been often implemented without the process of full-scale review or study because of clients' lack of expert and expertise. Moreover, many projects have been executed under the terms and conditions of the contact which were found to be unilaterally in favor of the clients. The study, as part of effects to mitigate the claims that would possibly be caused by the potential problems with the typical turnkey projects, were intended to identify the elements of the claims virtually being occurred at the construction sites, and then analyze the degree of influence on the project so as to be able to incorporate the outcome into the plan at the working-levels. As a result of experts' review, through the survey, of the elements once extracted, those having relatively higher degrees of influence on turnkey projects were determined, and the investigation aimed at estimating the amount of claims in terms of value were conducted to eventually identify, evaluate and verify the elements that had affected the Project together with the degree of influence.

• Korean Journal of Construction Engineering and Management
• /
• v.4 no.3 s.15
• /
• pp.128-136
• /
• 2003

The contractors which execute the design-build project have difficulties in design management and contract administration in the pre-construction phase because they have managed construction projects focused on only construction phase so far. Moreover, they have to manage the design development stage without any contingency following-up various design revisions from the design reviews of outside experts. Therefore, the design management in the design development stage is a critical success facto. of the design-build project. The objective of this study is to structure the problems in the management skill for design development phase in the domestic design-build projects and to suggest a design development management method to settle the problems. To achieve these objectives, this study 1) analyzes the prior studies about the design-build procurement methods, 2) designs and performs a case study to embody the problems of the domestic design-build projects, and 3) proposes a method of design development management by analyzing the results of case study and interviewing experts.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.33 no.2
• /
• pp.771-780
• /
• 2013

Inspection system which was performed in the past selected the final winning bidder by separating Pre-Qualification, the basic design evaluation and price evaluation. However, turnkey and alternative bidding construction has selected way to determine the successful bidder as the best design and the most low cost method, comprehensive evaluation method (bid price adjustment, design score adjustments, weights standard), the best design and the fixed amount method from january 1, 2010 to the present. Due to these institutional problems, orders institutions were often a way to determine the successful bidder to apply differently for identical or similar construction. Therefore this study winning bidder selection criteria through analysis of construction the number and construction order performance, order performance by work division and institutional orders, the weights bidder order performance and orders status of turnkey alternative tendering construction to civil part performed in domestic.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• autumn
• /
• pp.432-437
• /
• 2002

As the working design process of Turn-Key projects is a basic process for the final contract, this process has lots of business decision to be made. Because such results of business decision can be the basis on contract documents, it is the step which needs a through management for Turn-key project. But in case of domestic construction companies, because those are not organized process of working design process, project manager has had lots of trouble at each process to make the business decision. As a means of settling the problems, this research is initiated. First, working decision management process is identified and generalized by interviews with project managers. Second, cases that actually happened in the project are investigated and categorized. Third, response plan to solve the problems and check lists to prevent the problems are suggested. Finally, the process, cases, response plan, and check list are integrated using CBR for future reuse.

• Korean Journal of Construction Engineering and Management
• /
• v.2 no.3 s.7
• /
• pp.58-66
• /
• 2001

Turnkey project, also called Design-Build project, has been expanding and diversifying its business into the Korean market. However, it has been experiencing numerous difficulties due to a large number of change orders on the public turnkey project. Change order during the construction phase impact on time deliveries, budget and quality on a turnkey project. In preparation for this, the government has to improve the awarding procedure and general conditions for turnkey projects. Contractors should also cooperate with their co-working partners and establish a standardized procedure, which provides change order control for efficient implementation on the construction site.

• Journal of Arbitration Studies
• /
• v.13 no.2
• /
• pp.353-376
• /
• 2004

In the inner turn key constructions the problems of uniform types are repeatedly occurred, and, especially, many problems happen up to the stage of pre-construction(from a bid to a contract) owing to the specialties of the turn key constructions. So the claim factors of the Korean turn key constructions were abstracted through the literature searches, the site document examinations, the case studies and the interviews with the experts. When the technicians meeting the interior turn key constructions for the first time and working here now are well acquainted with only these factors, many claims will be prevented. By analysing the degree of claims by claims factors through the questionnaires to the experts about the abstracted factors and surveying the amount of the claims through the case studies, what factors exerted how much of influence on the claims was tested and analyzed. Proposing the response devices to the factors affecting the claims much led the technicians in charge of internal turn key constructions to the prevention and the proper solution of the site claims.

• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.34 no.6
• /
• pp.1881-1891
• /
• 2014

Full system of turnkey deliberation committee in 2010 was abolished and permanent Deliberation committee was introduced. So far, ordering organization selected the best method suitable for the design and comprehensive evaluation method in the turnkey bid construction. Comprehensive evaluation method have bid price design score coordination, weighted basis, the best design approach fixed amount, five successful bidder decision method in addition. Design deliberation branch committee in the successful bidder decision way configured and operated branch members of special design consultation committee, But main agent changed from committee deliberation pull system to permanent committee deliberation, as well as and The lobby burden was not improved. This similar to the past at the portion of the design deliberation and the way of the design deliberation in the turnkey bid construction. Therefore it is necessary to improve the design deliberation system. In other words, design score and technology competition should be adapted to determine a successful bid. This study suggested the operating system of the design deliberation, the decision method problems of the successful bidder and ways to improve the design deliberation.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2011.11a
• /
• pp.95-97
• /
• 2011

The purpose of this study is to suggest the development direction and performance analysis of design review system in design-build project. As a result of surveys, the fairness and transparency of design review system was abruptly increased. But local government has not fairness and transparency. Therefore this research has proposed the integration management and joint application of design review organization in design-build project. So, we expect that the transparency is raised in management of design review committee.