• 산업경영시스템학회지
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• 제14권24호
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• pp.169-177
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• 1991

The Existing Protect schedulings are mathematical nodes upon which probability control is based. In fact, under the mechatronics environment in the new product design and development, statistical information is very poor or sometimes non-existent. Probabilistic PERT/CPM methods are not always satisfying because those methods suppose that it is possible to apply central- limit theorem and there exists a critical path which is much mart critical than all the other paths. Fuzzy project scheduling is possibility based scheduling. For this reason, the Fuzzy Project Scheduling essential to design, development and control the new product under the mechatranics environment. This paper deals with a modeling on the project scheduling which use fuzzy set theory. Fuzzy concepts in the project scheduling are shown to be very useful and easy to work with in the R & D system.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.493-497
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• 2011

Project delivery systems have evolved over the years. Continuous changes in technology and the increasing sophistication in buildings required specialization of design and construction services. IPD as a delivery method has been used in the USA and other countries. With the development of BIM, lots of construction companies have been realizing this method since BIM came out in China. However IPD are not considered with BIM, IPD will be an important role in management system of construction. This study introduced the definition of IPD and based on the flow process of IPD, compared the process in china and other countries. Through the real project and the condition in China this paper analyzed the feasibility of IPD in China.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.425-432
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• 2020

In order to improve the sustainability and smart construction, it is discussed arguably that developing and applying consistent "standard model" to plan business, design, construct and operate a building is considered to be one of the effective and efficient approach. The scope of this article is to examine, from the international developer's perspective, the "standard model" approach of a hotel brand to building projects in the UK, and also to explore potential role of project team to mitigate any local difference at the project level. These projects are developed by the same developer adopting the same business plan, design and operation to each project. In order to clarify the actual and likely difference in construction results, reference is also made to those building projects located in other geographical markets including Japan, Germany and USA, and focus is given on the analysis of its programme and cost. Principle findings are that there exists geographical difference especially in environmental and planning system, and that major local difference is found at least in the programme at the design stage. In contrast, the difference in the building cost itself may not be necessarily considered major if currency exchange rate being taken into account appropriately. It is also observed that there were cases where any difference in the programme was mitigated by taking different approach to procuring and defining roles of management and professional team at the project level. In conclusion, from the international developer's perspective, the geographical difference of the "construction system" surrounding building projects can typically lead to major prolongation of programme, however, these different construction results could be mitigated at least to a certain extent by introducing appropriate changes to the role of project team.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.338-343
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• 2013

Integrated Project Delivery (IPD) as a delivery method fully capitalizes on an integrated project team that takes advantage of the knowledge of all team members to maximize project outcomes. IPD is currently the highest form of collaboration available because all three core project stakeholders, owner, designer and contractor, are aligned to the same purpose. Compared with traditional project delivery approaches such as Design-Bid-Build (DBB), Design-Build (DB), and CM at-Risk, IPD is distinguished in that it eliminates the adversarial nature of the business by encouraging transparency, open communication, honesty and collaboration among all project stakeholders. The team appropriately shares the project risk and reward. Sharing reward is easy, while it is hard to fairly share a failure. So the compensation structure and the contingency in IPD are very different from those in traditional delivery methods and they are expected to encourage motivation, inspiration and creativity of all project stakeholders to achieve project success. This paper investigates the compensation structure in IPD and provides a method to determine the proper level of contingency allocation to reduce the risk of cost overrun. It also proposes a method in which contingency could be used as a functional monetary incentive when established to produce the desired level of collaboration in IPD. Based on the compensation structure scenario discovered, a probabilistic contingency calculation model was created by evaluating the random nature of changes and various risk drivers. The model can be used by the IPD team to forecast the probability of the cost overrun and equip the IPD team with confidence to really enjoy the benefits of collaborative team work.

• 한국실내디자인학회논문집
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• 제27권3호
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• pp.116-125
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• 2018

With rapid economic development in Korea, interests in interior design have increased gradually. However, interior design markets were poorly evaluated from 2015 Korean Consumer Evaluation. It is necessary to identify what kinds of problems, defects, and consumer claims have arisen during interior design planning and construction procedures. Therefore the purpose of this study is to investigate claims and disputes in interior design project procedures and to find out when defects or claims take place in those procedures in order to reduce claims or defects. Email questionnaires were distributed to KOSID members (professional interior designers) using Google Survey. In addition, a focus group interview was conducted. A total of 54 responses were collected and analyzed using SPSS 19. As a result, in an agreement stage, alteration in materials is the major source of claim. More than a half of respondents addressed time shortage for programming and planning. During the construction stage, approximately 31% respondents experienced client dissatisfaction with materials and finishes. The reason for project completion delay was due to claims during construction. The claims most frequently appealed by clients were related to painting. The satisfaction with project quality is positively related to the quality and contents of design documents including design drawings and specifications. Regulations and communication with clients are important issues to reduce the gaps between interior designers and clients/ consumers.

• Advances in Computational Design
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• 제7권2호
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• pp.153-171
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• 2022

The present study aimed to find a way to create forms that can simultaneously meet several architectural requirements by applying generative design methods specifically focused on cellular automata. In other words, it is tried to find various forms of architecture that all have common features. Because of the useful features of cellular automata, we decided to use it to generate various forms, but make a relation between the discrete nature of cellular automata and the continuous nature of architecture, was the major problem of our project. To achieve this goal, three consecutive stages were designed. In the first stage, independent variables including the location of the building, the height of the building, and the building area were considered as the inputs of the model. In the second stage, after locating the building, the building's main shell was designed as a hidden geometry for the cellular automata and then the cellular automata were determined based on this shell. The main result of this research is establishing a logical relationship between the discrete geometry of the cellular automata and the continuous search space such that it creates various optimized forms. Although we specify the site plan of this project at Iran-Tehran, this research can be generalized to various design sites as well as different projects, allowing the architectsto alter the cell dimensions, cell density, etc., based on their opinion and project needs.

• 한국실내디자인학회논문집
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• 제24권5호
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• pp.117-127
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• 2015

This paper depicts a case study of the BIM (Building Information Modeling)-enabled evaluation of design alternatives for an actual remodeling project in Yeongwol, Korea. The increase of urban population and income followed by the growth of economy has derived massive supply of grand scale housing project in Korea since 1970s. Consequently, building remodeling became one of the feasible resolutions for renovating such old housings in these days. This paper aims to introduce a technical approach to such remodeling projects based on BIM-enabled applications focusing on quantitative analysis of design alternatives. Among the technical issues of such building remodeling projects, this paper focuses on the BIM-enabled area analysis and comparison between design alternatives to support decision-making even in early phase of remodeling design process. BIM and its variety of applications have broadly influenced the domain of AEC-FM (Architecture, Engineering, Construction, and Facility Management) within the lifecycle of buildings. As one of the applications facilitated by BIM, the automated area calculation and scenario-based comparison between alternatives can play an important role in the early phase of remodeling project. We modeled three design alternatives (buildings) and three housing modules (units) based on the actual case in Yeongwol city, Korea using a BIM design authoring tool. Nine combinatorial BIM models were demonstrated for the BIM-enabled review process described in this paper. To determine the most optimal design scenario among nine alternatives, this paper demonstrates a result of the conducted spatial program review. The main subject includes specific spatial program issues on; 1) the number of unit spaces; and 2) area of individual/grouped and private/shared spaces.

• 한국건설관리학회논문집
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• 제17권2호
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• pp.127-134
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• 2016

설계변경은 건설 사업을 진행하는데 있어 필수적으로 관리되어야 하는 요소 중 하나이다. 특히 군 시설사업은 군 조직의 특수성과 폐쇄성으로 민간공사보다 많은 어려움이 존재한다. 발주처 내에 사업관리자와 사용자가 존재하고 있어 사업을 추진할 때, 의사소통이 원활하게 이뤄지지 못한다면 어려움을 겪을 수 있다. 의사소통의 문제가 설계변경으로 이어지고 사용자 불만족으로 표출되기 때문이다. 따라서 본 연구에서는 군 시설사업의 계약현황을 통한 특성을 분석하고 과거 시설사업의 설계변경의 요인을 분석하고, 설문조사를 통해 시설사업관련자들의 다양한 의견들을 종합 분석하여 군 시설사업의 설계변경 요인을 도출하였다. 이에 대해 실현가능한 개선방안을 제시함으로서 군 시설사업을 진행하는데 있어 설계변경에 의한 손실이 감소될 것으로 기대된다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.432-437
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• 2002

턴키 공사의 실시설계 단계는 기본설계 이후 최종 계약을 위한 준비 단계로써, 수행하여야 할 업무가 많을 뿐만 아니라, 그러한 업무의 결과가 실제 계약서류에 대한 근거가 되므로 턴키 사업 수행자 입장에서는 철저한 관리가 필요한 단계이다. 그러나 국내 건설회사의 경우, 최근까지 단순히 시공 주체로써의 능력만을 키워왔으며 턴키 사업에 대한 경험이 미비하여, 실시설계 단계의 프로세스와 기존사례가 체계화되어 있지 않아 현장관리자가 해당 프로세스에서 업무를 수행하는 데 어려움이 있었다. 이를 해결하기 위해, 먼저 턴키 사업의 이론적 고찰을 통하여 연구의 근거와 필요성을 제시하고, 현장관리자 면담을 통해 실시설계 단계에서 수행하여야 할 업무와 그에 따르는 제반사항에 대해 파악한 후, 실제 발생하였던 의사결정 사항들과 그에 대한 대처방안 및 예방방안에 대해 조사하였다. 그리고 면담조사 결과를 바탕으로 턴키 공사의 실시설계 단계 프로세스 모델과 CBR(Case-Based Reasoning)을 활용한 실시설계관리 방안을 제시하였다.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.437-443
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• 2013

Recently, sustainable building design, a growing field within architectural design, has been emerged in the construction industry as the practice of designing, constructing, and operating facilities in such a manner that their environmental impact, which has become a great concern of construction professionals, can be minimized. A number of different green rating systems have been developed to help assess that a building project is designed and built using strategies intended to minimize or eliminate its impact on the environment. In the United States, the widely accepted national standards for sustainable building design are known as the LEED (Leadership in Energy and Environmental Design) Green Building Rating System. The assessment of sustainability using the LEED green rating system is a challenging and time-consuming work due to its complicated process. In effect, the LEED green rating system awards points for satisfying specified green building criteria into five major categories: sustainable sites, water efficiency, energy and atmosphere, materials and resources, and indoor environmental quality; and sustainability of a project is rated by accumulating scores (100 points maximum) from these five major categories. The sustainability rating process could be accelerated and facilitated by using computer technology such as BIM (Building Information Modeling), an innovative new approach to building design, engineering, and construction management that has been widely used in the construction industry. BIM is defined as a model-based technology linked with a database of project information, which can be accessed, manipulated, and retrieved for construction estimating, scheduling, project management, as well as sustainability rating. This paper will present a framework representing the building knowledge contained in the LEED green building criteria. The proposed building knowledge framework will be implemented into a BIM platform (e.g. Autodesk Revit Architecture) in which sustainability rating of a building design can be automatically performed. The development of the automated sustainability rating system and the results of its implementation will be discussed.