• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.163-164
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• 2023

The technical proposal bidding system emphasizes the evaluation of the construction company's technical capabilities, with the aim of improving the quality and cost-effectiveness of the construction. However, in the VE analysis and proposal process for technical proposal bidding, the ideas are often reused from similar past construction projects, and the application of new construction technologies/methods is often lacking. Therefore, this study proposes a methodology for managing VE proposal information by integrating it into a BIM model using parametric modeling. This research developed database based on the existing VE proposals and new construction technology/method information from the Korea Institute of Civil Engineering and Building Technology. And by using parametric modeling, the proposed method integrate the VE database with BIM model. The methodology proposed in this study is expected to improve the reliability and effectiveness of VE-related idea proposals in technical proposal bidding.

• 아태비즈니스연구
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• 제13권1호
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• pp.213-230
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• 2022

Purpose - The purpose of this study is to find out any potential factors for explanatory variables when calculating the virtual successful bid rate in case of no collusion. Design/methodology/approach - An empirical analysis was conducted in this study with a regression analysis that included 725 bid samples under the public construction technical type bidding. Findings - The result of the basic analysis showed that there are several factors affecting the successful bid rate. First, collusion variable; second, government variable; third, successful bidder design score variable and the number of bidder variable among bidding features; fourth, turnkey variable based on the alternative method; fifth, civil works variable and plant works variable based on building work; sixth, asset variable and the fourth-quarter performance difference variable. However, the technical proposal method variable among bidding features was found to be statistically insignificant in column(4). Research implications or Originality - The significance of this research is that new variable such as the government variable and the fourth-quarter performance difference variable were added in the regression model, which showed statistically significant research results.

• KIEAE Journal
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• 제15권1호
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• pp.61-68
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• 2015

Method of remodeling builder selection for remodeling is competitive bidding. also metropolitan city, megalopolis city, city more than 50million have to do basic plan for remodeling before establishment of a housing cooperative. Purpose of basic plan is improvement of living conditions & the Quality of Life for resident. Technical Proposal Tendering in spite of being the a reasonable bidding system, institutional part, appraisal standard and the item part, consider procedure pard is performed in a similar way to the existing bidding system. so, technical proposal tendering is appropriate for future Method of builder selection of remodeling. therefore, the study purpose is a evaluation element of technical proposal tendering for apartment remodeling business The methods of study is understanding concept through review of precedent literature. Next, case investigation through Analysis of focal points. Lastly, evaluation element deduction of technical proposal tendering for apartment remodeling business through specialist conversation. As a result, Alteration of a right & move management is added to evaluation element's professional field. And detail item is alteration of a right & move management.

• Journal of Construction Engineering and Project Management
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• 제5권3호
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• pp.18-28
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• 2015

Bidding and contract systems are used for public construction projects to select contractors following fair competition principles and to execute national budgets effectively. Many challenges have arisen due to a lack of transparency and fairness and because bidding practices have been luck-based. Few comprehensive or comparative analyses have been conducted on the performance and limitations of bidding and contract systems, and empirical analyses designed to improve policies on and the practice of such systems are lacking. This study empirically analyzed current bidding and contract systems to seek ways of improving them. The study proposes several alternatives to resolve the problems with and irrationalities of the current system: 1) improving bidding and selection systems by changing them from a luck-based price competition into a technical merit- and value-based competition; 2) improving the assessment criteria to meet the current market level of bid and winning prices; 3) adjusting contractual responsibilities and sharing structures to meet the current trend; and 4) strengthening the competitiveness and expanding the social responsibility-based procurement systems of construction companies.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년 춘계학술발표대회 논문집
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• pp.211-216
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• 2009

Bidding systems in the domestic public construction work have been amended many times since the lowest-bidding system was implemented in 1951. However, this hasn't had much success. Competition in technical development among companies has declined as the contracts for buildings are given to company which submits the lowest price without considering traits of projects. In addition, as the construction market turns to the limitless competition system due to FTA(Free Trade Agreement), advanced techniques are needed to promote the national competitive power. Considering the needs of the times, Korean government announced that "Best Value Contract (Design-Bid-Build)" and "Bridging Contracts (Design-Build)" are included to 4 existing bidding systems in October 2007. Thus this study aims to suggest devised the evaluation criteria including major items for evaluating bidders, in order to establish and revitalize the best-value bid system successfully.

• 시스템엔지니어링학술지
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• 제10권2호
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• pp.59-69
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• 2014

In the bidding stage of turn-key based plant construction contracts, owners provide design and performance basis for contractors instead of giving design drawing. To win the bid for a plant construction, the contractors should be obliged to satisfy and ensure owners'requirements such as design and performance basis in a plant construction project, In other words, owners imposes technical risk of the design to the contractors by specifying responsibility for the analysis and verification of the plant construction. Thus, it is very important that contracters make accurate and realistic basic design plan in a short period of time. To deal with such a situation, we propose a systems engineering approach for the analysis and management of the technical risk. Specifically, we first: 1) Analyzes technical risk related with the plant design information for the bidders, followed by 2) Developing stakeholder requirements for the basic engineering design, and 3) System requirements for dealing with technical risk. Also, in this paper, we proposed converting method from MOE(Measure of Effectiveness) to MOP(Measure of Performance) in the risk analysis. To show the effectiveness of the proposed method, we carried out a case study.

• 한국건설관리학회논문집
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• 제17권4호
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• pp.76-86
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• 2016

2014년까지 지속적인 증가세를 보이던 해외건설사업 수주가 2015년에는 하향세가 뚜렷한 모습을 보이고 사업 운영 실적도 감소했다. 이러한 추세의 이유로 저가수주, 사업관리 Know-How 부족과 부실한 사업관리, 클레임 관리 능력 부실 등 여러 이유를 찾을 수 있다. 이에 수주 질적 향상의 필요성이 대두 되고 있다. 반복되는 실패에 대한 교훈을 삼고 입찰과정에서 기술, 상업, 계약적인 사항을 면밀히 검토하고, 사업 초입 단계에서 입찰 업무 시스템의 체계화가 필요하다. 또 사업지역 정보력 등 영업적인 측면의 경쟁력도 키운다면 질 높은 입찰을 제안함으로써 성공적인 사업으로 이끌어 낼 수 있을 것이다. 입찰 기술 고급화 전력이 해외건설사업의 리스크와 원가율, 추후 사업 확장 등 여타 전략적 측면에서 사업 성공의 열쇠(Key)가 되고 있다. 본 연구는 입찰 업무 프로세스 분석과 입찰업무 단계의 핵심성공인자(Critical Success Factor)를 도출하고 업무상의 리스크(Risk)인자를 찾아 핵심성공요인과 연계하여 종합적으로 관리함으로써 리스크 수준을 낮출 수 있는 프로세스 모델을 제시하고자 하는데 목적이 있다.

• 한국건설관리학회논문집
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• 제19권3호
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• pp.52-60
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• 2018

우리나라의 공공건설공사는 입찰을 통해 공사를 발주하고 있으나 하지만 입찰의 특성상 참여자들간의 담합이 발생할 수 있다. 이에 따른 입찰담합은 발주자에게 손해를 가하는바, 이를 배상할 수 있도록 적절한 가상경쟁가격을 산정해야 한다. 이와 관련하여 계량경제학적 방법이 일반적으로 활용되고 있으나 건설공사, 특히 설계 시공일괄입찰의 특성상 여러 한계와 쟁점이 발생할 수밖에 없다. 따라서 본 연구에서는 설계 시공일괄입찰에서 합리적인 가상경쟁가격을 추정할 수 있는 방안을 제안한다. 이는 입찰 참가자가 제출한 설계도서로부터 한계비용을 도출하고, 입찰 참가자의 기술 수준과 경쟁업체의 기술 수준 및 입찰 형태에 따라 입찰율에 따른 요인을 검토하여 가상경쟁가격을 추정하는 방법이다. 본 연구에서 제안한 방법을 토대로 설계 시공일괄입찰 낙찰자 결정 방식의 특성이 반영된 합리적인 가격이 도출될 수 있으며, 답함에 따른 손해액 산정뿐만 아니라 실제 입찰 과정에서의 참고자료로 활용할 수 있을 것이라 판단된다.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.42-49
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• 2022

In recent years, Owner, Architects, and Contractor are increasingly collaborating with each other from pre construction phase in construction projects, which is called Early Contractor Involvement (ECI). In Japan, the ECI method has been introduced in several public building projects since 2015. The purpose of this study is mainly to clarify the characteristics of the ECI method in Japan and to compare the contract clauses of the ECI method in the UK and the USA. The results of the survey are as follows. (1) the ECI method was supposed to make it possible to achieve appropriate quality, cost, and construction period by reflecting Contractor's technology and know-how in the design documents and specifications. (2) According to the database, there were 27 cases of the ECI method in Japan from 2015 to 2021, of which 13 cases for which bidding information could be obtained had a variety of technical proposals, mainly VE proposals, depending on the project characteristics. (3), Japan's ECI method has very much in common with SBC + PCSA in the UK. On the other hand, ECI Method in Japan differs from in the UK in that Owner, Architect, and Contractor enter into a partnership agreement, which is similar to ConsensusDocs CD541 in the USA. (4) The ECI method in Japan has the following problems: Owner depends on Contractor for cost control, the division of roles among project members is complicated, and more work from Owner than the DBB method are required.

• 대한토목학회논문집
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• 제34권6호
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• pp.1881-1891
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• 2014

2010년부터 턴키심의위원 풀 제도를 폐지하고, 상설심의위원 제도를 도입하여 현재까지 턴키입찰공사는 설계적합최적가방식, 종합평가방식으로서는 입찰가격, 설계점수조정, 가중치기준, 확정금액최상설계방식의 5가지 낙찰자 결정방식으로 선정하고 있다. 또한 낙찰자 결정방식으로서 설계심의분과위원회를 크게 중앙 지방 특별 설계자문위원회의 분과위원으로 구성하여 운영하고 있으나, 아직 로비 부담에 대해서 개선되지 못한 것은 심의위원 풀제에서 상설심의위원으로 심의 주체만 변경되었을 뿐, 턴키입찰에서 설계심의가 가지는 비중과 설계심의방식도 과거와 유사하기 때문이다. 그러므로 가격경쟁을 부분적으로 강화하여 설계점수가 낙찰을 좌우하는 풍토를 개선하고, 기술경쟁은 영업력보다 실질적인 기술력이 경쟁력을 가질 수 있도록 설계심의제도를 개선하는 것이 필요하다. 이에 이 연구는 낙찰자 결정방식의 설계심의 운영제도와 문제점 그리고 개선된 설계심의방안을 제시하였다.