• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.303-306
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• 2003

본 연구에서는 국내 일괄발주방식에 적합한 공사계약일반조건 문제점 도출을 목적으로 수행되었다. 이를 위하여 국내외의 일괄발주방식에 관한 문헌고찰과 계약서 구성체계를 조사하였다. 또한, 국내 표준계약서와 국외 일괄발주방식의 표준계약서 비교를 통하여 국내 설계시공일괄발주방식에 사용하고 있는 표준계약서에 누락되거나 미흡한 조항을 분석하고, 실무자 설문조사를 통하여 일괄발주방식에 필요한 주요 조항을 조사하였다. 이를 통하여 도출된 문제점을 해결하기 위하여 국내의 일괄발주방식에 적합한 공사계약 일반조건의 개선을 위한 기초 자료를 마련하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2006년도 춘계학술논문 발표대회 제6권1호
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• pp.119-124
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• 2006

Design-Build, one contractor is responsible for both the design and construction, has become more popular since the government framed the policy on how to activate the design-build projects in 1996. The reality is, however, there are many problems encounted on Contractor Selection Method for Public Design-Build Projects. The purpose of this paper is to improve the problems, no way to meet the goal(value) the owners expect from the design-build projects, for instance, not fully reflecting the characteristics of projects and owners intention, not systematical enough to judge if bidders could carry out the contract. This study will insist we introduce Best Value Procurement, which is being commonly used in some advanced countries recently, so that we would properly select the contractor suitable for Best Value concept which totally depends on the owners, types of work and specified conditions. Furthermore, by passing through the Two-Step Procedures following Pre-qualification in Best Value Procurement, we expect it lighten the bidders' burden for proposal and the owners' complicate bid administration.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.974-979
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• 2005

Effective communication flow is a fundamental for the success of any construction projects. The key role of communications among project parties is even more critical in the case of Design-Build (DB) projects. Previous research has shown that these projects have an environment where integration between different project team members and schedule constraints increase channels of communication, and require faster communication flows. This paper summarizes the findings from research analyzing organizational structures and communication flow of the Texas State Highway 130 (SH130) project. Awarded in 2002, the SH130 project, totaling $1.3 billion USD, constitutes the "pilot" application for the DB approach in the state of Texas. A set of observations pertaining to team organization and communication issues in the design-build environment is included.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2006년도 정기학술발표대회 논문집
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• pp.284-288
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• 2006

건설교통부에서는 설계시공일관사업을 포함한 총공사비 100억원 이상인 모든 공사에 설계VE 적용을 의무화하고 있다. 현행 설계시공일관사업에서는 입찰을 통해 확정된 총액금액으로 설계가 진행되어 실시설계단계에서 VE의 실시 명분이 미흡한 상태이다. 그러므로 설계시공일관사업에서 설계VE을 활성화하기 위해서는 설계VE 적용 결과에 따른 절감액의 배분이 이루어져야 한다. 이에 본 연구에서는 현행 설계시공일관방식의 특성과 설계VE 적용의 문제점을 파악하고, 설계시공일관사업에서 설계VE 적용의 효과를 극대화할 수 있는 인센티브의 활용방법을 제안한다.

• 국제학술발표논문집
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• The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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• pp.153-158
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• 2017

Procurement system of public construction projects in Japan is changing with diversity in rapid pace. The quality assurance and risk management of construction projects should be more certain as the projects are turning into larger scale and more complexed. The clients in the public sector will want to make the relation of responsibility among the client, the designer (architects and engineers), and contractor clearer in terms of role and risk. Public-Private Partnership (PPP) is one of the methods for collaboration of the public sector and the private sector in public construction projects where the public utilizes the ability and suggestion of the private. Private Finance Initiative (PFI), Design-Build-Operate (DBO), market testing, designated manager system, outsourcing of tasks in local governments are well-known as examples of PPP in Japan. Indeed, there is an obvious trend that Design-Build (DB) is adopted in public construction projects in many countries including Japan. In this paper, the public construction projects in various procurement systems are surveyed and analyzed. They are not limited within the traditional procurement, Design-bid-Build, a separate order system of design and construction. Design-Build or PFI are adopted. In particular, contract by wide range including maintenance of equipment can be found. On the other hand, modification from originally typical PFI is taking place, such as concept design and project finance are removed from the roles and the tasks of the special purpose company (SPC) in PFI. Standard roles and tasks in a construction project are modeled in this paper.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.371-375
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• 2015

Design-Build (DB) has gained in popularity in roadway projects due to its defining advantage to improve communication and fast-track project delivery. However, very little is known about the impact of change order frequency and occurrence timing pertaining to DB projects. The study analyzes their impacts on project time and cost performance by conducting a rigorous numerical analysis drawing on 530 3R (rehabilitation, reconstruction, and resurfacing) projects completed between 2002 and 2011 in Florida by using a multiple linear regression. The results indicate that DB outperformed Design-Bid-Build in project cost as well as time. Critically, the regression analysis signifies that earlier change order occurrence caused more unfavorable impacts on schedule and cost. The proposed analyses and models will lead to the improved ability of agencies to quickly and more reliably estimate the potential change order impacts on schedule and cost.

• 한국BIM학회 논문집
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• 제5권2호
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• pp.26-33
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• 2015

Design-build projects were devised to enhance the design technologies of the domestic construction industry and the efficiency of public works, contributing greatly to the development of construction technologies. However, as various stages of the process, such as formulation of basic plans and design documents, and deliberations proceed, claims, including changes in the requirements of clients, and design changes occur. These claims result in the delay in construction and an increase in construction costs. In this regard, this study attempted to identify main claims that delay construction and increase the costs of design-build projects, prevent claims in the future, and improve the efficiency of project implementation.

• 한국건설관리학회논문집
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• 제7권1호
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• pp.110-118
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• 2006

현행 일괄입찰방식은 분담이행방식의 공동도급형태로 운영되고 있어, 참여업체간의 의사소통 부족으로 설계기술과 시공기술의 접목이라는 일괄입찰방식 본래의 취지를 살리지 못하고 있다. 또한 입찰을 통해 확정된 총액금액으로 설계가 진행되므로 실시설계단계에서 VE활동을 통한 원가절감 노력이 거의 이루어지지 않고 있는 실정이다. 이에 본 연구에서는 현행 설계시공일괄방식의 특성을 파악하고 설계VE 적용사례를 분석하여, 설계VE 적용의 문제점이 무엇인지를 파악한 후, 일괄입찰사업 수행절차에서 설계VE 적용의 효과를 극대화할 수 있는 파트너링의 활용방법 및 그 적용시기를 제안한다.

• Journal of Construction Engineering and Project Management
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• 제2권3호
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• pp.30-39
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• 2012

Design-build (D&B) has been broadly perceived as an effective project delivery method and become popular in the world. However, the implementation process of this innovative procurement method in Vietnam encounters difficulties due mainly to unfamiliarity and inexperience with the approach. Critical success factors (CSFs) which could be used to enhance the project execution are useful to practitioners in Vietnam if identified. A questionnaire survey was employed to identify CSFs of D&B projects in Vietnam. Parties' competence, especially financial capability, and contract documentation are the most important factors significantly affecting project success. It was also shown that the perspectives of two principal parties in D&B projects on the CSFs are statistically correlated. The identified CSFs were then validated with some various D&B projects. The execution results of CSFs' were compared with the projects' performance measured try key performance indicators (KPIs). The most important success factors of this study were also compared with other countries'. The validation and comparison results provide project participants with some useful information to perform D&B projects better. Practitioners should well perform the identified CSFs to enhance the chance of the success of D&B projects in Vietnam. The findings of this study are useful not only to Vietnamese practitioners but also to others who are concerned about D&B method and plan to employ it in Vietnam in future.

• 한국건설관리학회논문집
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• 제13권5호
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• pp.12-24
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• 2012

턴키계약방식(Design Build)은 설계시공 일괄계약방식으로 책임 한계가 보다 광범위하게 적용되어 프로젝트 수행 초기 설계 단계부터 설계비 부담 증가 등 일반 분리발주공사 보다 리스크 발생율이 높은 실정이다. 따라서 이번 연구에서는 턴키계약프로젝트에서 리스크요인의 분석 및 정량적 평가 방안을 연구하였다. 이 번 연구는 프로젝트참여자로부터 수집한 설문조사자료를 이용하여 통계분석을 수행한 결과 총145개의 리스크변수중 전체 참여자 그룹이 동의하는 DB프로젝트에서의 리스크변수는 25개로 나타났다. 요인분석을 통하여 이를 8가지 리스크요인으로 함축할 수 있었으며 이중 3가지 요인인 건설현장관련, 계약관련 및 설계관련 리스크요인이 72%의 가중치를 나타내었다. 리스크변수 및 리스크요인에 따른 가중치와 결합확률을 이용하여 리스크요인에 기인한 추정손실의 크기를 전체공사비에 대한 백분율로 추정한 결과 약 6%로 나타났고, 리스크 요인상호영향을 고려하면 약 10%를 나타나 리스크대응을 위하여 전체공사비의 약 6%~10%의 예비비를 계상할 필요가 있는 것으로 나타났다.