• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.635-641
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• 2007

The construction starts its business by receiving the order from client and owner. The client presents requirements and related information so that the desired result can come out while the designer and the builder express and implement the building according to set objectives and goals of project based on information on project environment and presented requirements. Because the construction project makes decisions on such objectives at its early stage and previous stage becomes the situation for decision making of next stage as the computation to implement decisions get performed. Accordingly, this study has mentioned necessity of requirement analysis and systematization of construction project, analyzed the work of construction's early stage and resented a plan for objective of construction project requirement definition model in which requirements engineering has been applied and using it while making decisions on designing.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.228-229
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• 2021

Planning/planning stage Construction cost prediction is very important. In particular, flexible thinking is required to predict the construction cost by reflecting rapid market changes and current conditions. Therefore, in this study, we tried to consider the process for calculating the construction cost of an apartment house in a more accurate planning/planning stage. First, cases were collected based on the classification system by construction type. Second, the construction cost was predicted using the case-based reasoning technique. Third, the composition ratio by construction type of the most similar case was applied to the derived construction cost. Finally, the construction cost was predicted based on practical corrections reflecting the market and field conditions.

• 대한안전경영과학회지
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• 제8권1호
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• pp.65-84
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• 2006

This study was to suggest the necessity of depth research in order to enhance the effectiveness of technical consulting system. And the purpose of this study was to decrease the construction accidents to some extent, being on the increase day by day as it takes issue properly and suggest a reform measure. As for research method, it executed the collection of public opinions widely and questionnaire with the bibliography, expert of construction safety, the related institutions, academic world, safety association, and director of construction site. Also, it was to suggest the reform measure by the stage, classifying the problems on the system and operation by 4 stages like a stage of delivery of subscription and supervision, a stage of contract with guidance of technology, a stage of executing the guidance work of technology, and a stage of performance of advice.

• KIEAE Journal
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• 제11권4호
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• pp.87-94
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• 2011

This study was suggested to develop sustainable durability design system and proposed the plan to evaluate design conditions that meet the intended service life and $LCCO_{2}$ reduction level of reinforced concrete structure easily from the early design stage. For that the W/B and covering depth of the concrete structure were calculated through calculation of service life based on standard specification expression and the quantitative reduction rate of the vertical member of reinforced concrete structure by the calculated W/B was applied. Life cycle of building classified into construction stage, operation stage, maintenance stage, and demolition/disposal stage and the method of $CO_{2}$ evaluation of each stage was proposed. For construction stage, the major construction materials that take up over 80% $CO_{2}$ emitting during building construction were selected and the $CO_{2}$ evaluation method for 5 standard apartment houses was proposed. Also, for operation stage, $CO_{2}$ emission was calculated through calculation of heating load by energy efficiency rating certification system. For maintenance stage, $CO_{2}$ emission was calculated using concept of re-construction by life and for demolition/disposal stage was calculated with the use of construction standard estimate. As a result of the case study by such evaluation methods, 80 years of service life and 17 specifications of sustainable durability design that meet the 40% intended $LCCO_{2}$ reduction level were deduced. The Maximum $LCCO_{2}$ reduction rate was analyzed by 47.2%.

• 한국실내디자인학회논문집
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• 제22권5호
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• pp.320-327
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• 2013

In order to maintain and protect professionalism in color planning, the present study examined the process at the time of realization of color through color inspection and supervision in the actual construction site and suggested plans for improvement. Reflecting the characteristics that the governing body of the construction site is not a private person but an organization, the present study aims to provide institutional measures so that the supervisor of color construction at the actual site of construction can propose concerns related to proper construction at the right time, and the matters cannot be decided from the perspective of a layman. The institutional measures are proposed through the case of application of a process at the construction stage of the color planning at the construction site of Muju Taekwondo Park. First, the process clarified where the responsibility lies by specifying special conditions concerning color inspection on the field guide and color contract. Second, the sample for building materials was selected after obtaining it from a company capable of supply and is appropriate for the planned unit cost so that it could play an important role in realizing colors at the stage of basic design. Third, the process of construction was ensured not by temporary selection of colors but by continuous approval of colors in consideration of the conditions of construction site through letter of approval of color at each stage and point of time. Fourth, coordination of various color elements of other fields including landscape, interior, and electricity ensured construction of the whole structure in one color concept. Fifth, color inspection through the mock up of the site will minimize erroneous construction and reconstruction and prevent decrease in productivity. Sixth, this study also suggested more comfortable and positive color environment through evaluation by experts and users. The researcher of this study expects that color experts actively participate in the stage of construction to contribute to improvement of the color environment.

• 한국강구조학회 논문집
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• 제22권1호
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• pp.55-65
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• 2010

공공 건설공사에서 공사 단계별 합리적인 공사비를 산정하는 것은 국가 예산의 효율적 확보 및 집행 등에 있어 매우 중요한 요소이다. 일반적으로 공사예정가격은 대상 구조물의 설계 종료시점에서 산출된다. 그러므로 대상 구조물의 구체적인 상세 단면이 주어지지 않은 기획단계 및 설계초기단계에서 교량 구조물에 대한 단순 정보만을 가지고 개략공사비를 추정하는 것은 상당히 어려운 문제일 것으로 생각된다. 본 연구에서는 선행연구에서의 61개의 강박스거더교 공사비 분석에 의해 효율적이고 적절한 기획단계 및 설계초기단계의의 개략공사비 산정 모델의 제시 및 타당성을 검증하고자 한다. 연구결과, 본 연구에서 제시된 공사비 산정 모델에 의해 얻어진 추정공사비는 기존에 사용된 방법과 비교할 때 매우 높은 신뢰도를 갖는 것을 알 수 있었다.

• 한국구조물진단유지관리공학회 논문집
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• 제5권3호
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• pp.213-223
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• 2001

This paper presents an analytical procedure for the time-dependent analysis of the multi-story prestressed concrete structure under the construction stage. To account for the actual structural behavior, the procedure considers the effects due to the construction interval and the time-dependent losses of prestress at every construction step on the entire structural response. A numerical study is performed to demonstrate the general validity of the approach and to quantitatively evaluate the effects resulted from the time-dependent behaviors during construction. Recommendations and conclusions are developed by comparisons with structural responses using the present and conventional methods of analysis. The comparative results show that both effects of sequential construction and time-dependent prestress losses should be considered for the construction stage analysis.

• 한국BIM학회 논문집
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• 제14권1호
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• pp.22-29
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• 2024

BIM is a practical and economical technology used in the construction process. Despite the fact that BIM is widely used in the design and another stage before construction, it is not largely applied during the construction stage itself. However, it is important to opt for BIM during construction stage because there may occur a number of risks such as construction delay and increased construction costs. Therefore, the present paper contains the analysis of the model use, which is mainly applied to respond to the BMI RFI that represents an information requirement of construction site workers, by analysing the BMI RFI application at the construction site. In addition, there is an analysis of the way the derived model use affects the project goal aimed at the project success.

• 한국강구조학회 논문집
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• 제23권6호
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• pp.691-704
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• 2011

본 연구는 데릭크레인과 인양중인 새그먼트 자중에 의한 외력이 작용하는 시공중인 폐합 직전 사장교의 기하비선형성 및 재료비선형성을 고려한 비선형 해석을 통해 극한 거동을 규명하였다. 시공중 사장교의 상태를 수치적으로 구현하기 위해 초기형상 해석과 역방향 시공단계 해석을 순차적으로 진행하였고, 이후에는 데릭크레인 및 인양중인 새그먼트 자중을 중앙경간 최 측단에 재하 하여 폐합 전 강사장교의 주요한 거동을 모사하였다. 또한 주요 매개변수에 따른 극한거동 및 극한하중계수의 변화를 정량적으로 분석하기 위한 방법으로 주탑-거더간 강성비와 케이블 면적을 변화하면서 거동을 관찰하였고, 기하비선형성과 재료비선형성 모두를 고려한 극한해석 결과를 기하비선형성만을 고려한 기하비선형 해석과 비교하여 보다 구체적이고 정량적인 극한거동에 대해 분석하였다.

• 한국건설관리학회논문집
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• 제5권2호
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• pp.115-122
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• 2004

이 논문은 건설공사 과정에서 불확실성과 위험성이 비교적 높은 토공사, 지정공사 및 기초공사에서 발생할 수 있는 리스크인자의 중요도 산정에 관한 것이다. 이 연구는 리스크 $식별\cdot분석\cdot대응$으로 이루어지는 리스크관리 3단계 중 리스크 식별과 분석단계를 중심으로 연구를 진행하였다. 리스크 식별은 기존의 건설공사 작업분류체계를 참고하여 대상 공종을 $공통\cdot토공사\cdot지정$ 및 기초공사로 구분하여 초기 건설공사의 리스크 분류체계를 제시하였다. 리스크 분석은 리스크분류체계를 바탕으로 퍼지이론에 기반하여 실시하였다. 리스크인자의 중요도는 AHP기법에 의한 상대적 중요도와 퍼지척도로부터 구한 리스크인자들 사이의 절대적 중요도를 고려하여 산정하였으며 리스크 인자의 최종적인 중요도는 Sugeno $\lambda$-퍼지척도를 사용하여 구하였다.