• 한국건설관리학회논문집
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• 제6권6호
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• pp.115-123
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• 2005

강교량 가설공사의 설계는 그동안 과거유사사업의 자료를 토대로 설계자의 경험에 의존하여 진행되어 왔다. 이로 인해 실제 현장에서 소요되는 가벤트에 대하여 과대설계 논란이 있으며, 시공단계에 불필요한 설계변경을 야기하고 있다. 본 연구에서는 강교의 설계작업 과정에서 생성되는 설계 자료와 가설공사의 수행에 필요한 자원에 대한 데이터베이스를 구축하여 강교 설치 가설공사의 최적화설계 지원 시스템을 개발하였다. 이를 통하여 가설시설물에 대한 설계를 최적화하며, 설계변경을 줄이는 데에 기여할 뿐만 아니라 설계정보를 시공단계에 활용하게 함으로써 업무의 효율성과 정확성을 제고하였다.

• 한국BIM학회 논문집
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• 제5권4호
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• pp.1-10
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• 2015

In order to apply the BIM technology effectively and efficiently during the life-cycle of project, it is important to deliver a accurate information on BIM from designer, and it should be used effectively at construction or maintenance stage. However, stakeholders have created a new BIM model at each phase in many practise adopting BIM, not used BIM generated in design stage. Because they have different purposes for using BIM, and deliver the BIM model without the sufficient explanation or application. It is necessary to define the range of usable BIM in construction phase with analyzing clearly the BIM created in design phase, and determining the difference with required BIM in construction phase. Therefore, this study propose a method for construction c

• 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.337-345
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• 2017

The sponge city construction is being carried out in China, and how to reasonably determine the scale of the sponge city facilities is a key point that the planners and designers should seriously solve. In this paper, taking determination of the sponge city facilities in a residential building in Shenzhen as an example, the layout and scales of the rainwater tanks, raingardens, ecological roofs and permeable pavements are decided by using the volumetric method and stormwater management model (SWMM). The calculated results by the two methods are compared and analyzed. The results show that the scales of the sponge city facilities determined by the two methods are almost the same, and it means that any method can be used to determine the scale of sponge city facilities. The volumetric method is relatively simple, and it is suggested to use to determine the scale of sponge city facilities during planning stage. While SWMM is more complex and requires a lot of input conditions, but it can provide the reduction effects of the sponge city facilities for rainfalls with different recurrence periods. Therefore, SWMM is recommended to use the calculation of the hydrological process of the sponge city facilities during the design stage.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.496-500
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• 2015

International construction projects are inherently more risky than domestic projects with multi-dimensional uncertainties that require complementary risk management at both the country and project levels. However, despite a growing need for systematic country evaluations, most studies have focused on project-level decisions and lack country-based approaches for firms in the construction industry. Accordingly, this study suggests data-driven approaches for evaluating countries using two quantitative models. The first is a two-stage country segmentation model that not only screens negative countries based on country attractiveness (macro-segmentation) but also identifies promising countries based on the level of past project performance in a given country (micro-segmentation). The second is a multi-criteria country segmentation model that combines a firm's business objective with the country evaluation process based on Kraljic's matrix and fuzzy preference relations (FPR). These models utilize not only secondary data from internationally reputable institutions but also performance data on Korean firms from 1990 to 2014 to evaluate 29 countries. The proposed approaches enable firms to enhance their decision-making capacity for evaluating and selecting countries at the early stage of corporate strategy development.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.223-224
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• 2023

Optimal fleet management in the planning stage is one of the most critical activities that guarantee successful construction projects. In South Korea, the construction standard production rate database (CSPRD) is normally employed. However, when it comes to a trade-off problem that involves decision-making on optimal sets of equipment to perform a certain task, the method will require the planners' in-depth knowledge and experience regarding the target process and a time consuming estimation of the performance of every possible scenario must be conducted for the deduction of the optimal fleet management. On this account, this research paper proposes a lightweight method of using mixed integer nonlinear programming (MINLP) in multi-objective problems based on CSPRD-based mathematical equations to assist planners in the preplanning stage of choosing the optimal sets of types and size machinery to efficiently arrange the construction scheduling and budgeting.

• 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.324-329
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• 2011

Significant decisions are made by the project team during the early planning phase of capital facility project developments. The preproject planning phase begins after a decision is made to proceed with a project concept and continues until the detail design stage. Many of the industry practitioners and researchers have recognized the importance of preproject planning and that inadequate early planning is one of the key factors affecting project success. Nevertheless, the preproject planning practices vary significantly for the construction industry in Taiwan and the quality of preproject planning relies heavily on individual project team's experience. This research sets out to benchmark the preproject planning practice for the building construction industry in Taiwan. From late 2007 to early 2010, the researchers collected information from a total of 92 building construction projects using questionnaire survey. The analysis results show that the surveyed projects with better preproject planning have better cost and schedule performances on average. It is recommended that project team spend more efforts in the preproject planning stage to have a better chance of achieving project success.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.747-750
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• 2007

건설자재정보는 인터넷을 통하여 이용자에게 서비스 되고 있으나, 축적된 정보의 양 절대 부족 및 표준화 미비로 활용도가 매우 저조하다. 이에 따라 건설자재 정보화는 건설 실무자들의 업무와 연계하여 설계 및 시공 등 건설업무 모든 단계에 걸쳐서 이용할 수 있도록 정보화를 추진하여야한다. 설문조사 방법으로 실무자 의견을 조사 및 반영한 건설 자재정보의 DB 구축 및 이용을 위한 정보화 방향은 첫째, 건설자재정보의 지속적 갱신 및 양적 증대, 둘째는 건설자재 정보의 공유 및 연계를 위한 분류 체계 및 용어의 표준화, 셋째는 건설 단계별 필요한 자재정보를 조회 툴 개발, 넷째는 자재정보 DB와 응용 정보시스템과 연계를 통한 설계 및 시공 등 모든 단계에 이용을 위한 인터페이스 개발 등 을 고려한 단계적 추진 방향을 제시하였다.

• 건축역사연구
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• 제7권3호
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• pp.9-26
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• 1998

Architectural Drawing has been settled down the very effective means of exchanging their architectural ideas and data on the construction process. However, it was not easy to conserve the original drawings, which aims had been accomplished, at the same time, building was built. The same phenomena were occurred in our traditional architectural construction project, especially before pre-modern age. And do not understand soundly building documentation accepted by craftsmen in the period of earliest Chosun dynasty and how to present their idea and information of architectural as means of sketches and drawings. So, this paper aimed to clarify the drawing occurrence and the development steps of their rendering, representation methodology in the construction process in Sannungdogam-Uuigue, which were the construction documents of government based on the royal family's tomb and building projects in the late Chosun Dynasty. There are three development stages of architectural space representation, pre-drawing stage, drawing occurring stage and drawing settlement stage, They had been adapted unique drawing presentation method which were drawn by artisan, so called Doseol(圖說)and Painter Hwawon(畵員) The results are 1. In the Pre-drawing stage, they had been used the systematic explanation method of character 2. Do not have the evidence of adapting drawing before 17th centry, it was originated in early 17's century started with Onga(甕家). Onga's Drawing was drawn very elementary skill, and became development, settlement and standardization of their drawing representation around 19th century 3. The drawing presented by client's recognition view of space and building, integrated data within a sheet of drawing with practical and hierarchy and using graphic and description.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 추계 학술발표회
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• pp.539-550
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• 2006

New Songdo city is currently developing on the reclaimed land on a marine deposit and among the development the four sixty-four(64) stories high rise buildings are under construction at block 125. The ground condition of the site is comprised of a deep seated weathered rock staratum under a soft marine deposit layer. As a foundation system, a bored pile was planned to transmit the applied load to the stable layer. In this study, the behavior of the weathered rock especially locating at a upper part having a weak strength(HWR, MWR) has been evaluated through series of hi-directional pile load test(BD PLT) carried out on the 3 drilled shafts socketed in a weathered rock layer in a design stage. It has been planned to increase the effect of the tests that the length of test piles was prepared short enough to perform the test under a high stress. The summary of the design reflecting the test results has been made up. In addition, the 4 hi-directional pile tests excuted on the working piles during the construction stage for the purpose of confirmation and the evaluation of the adequacy of the pile behaviors have been included in this study.

• 한국건설관리학회논문집
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• 제10권4호
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• pp.87-100
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• 2009

공공사업에서 사업초기단계의 개략공사비 예측은 발주자에게 향후 공사비에 대한 정보를 제공함으로써 효율적인 예산수립을 가능하게 한다. 하지만 사업초기단계는 획득 가능한 정보량이 부족하기 때문에 상대적으로 정확한 공사비 예측이 어렵다. 현재 국내 발주기관에서 활용하고 있는 도로공사 개략공사비 산정체계는 단순하게 단위길이 당 단가에 도로의 연장을 곱하는 선형적인 모델이기 때문에 공사비 예측에 오차가 크게 발생하는 것으로 나타났다. 또한 사업의 진행에 따라 가용정보의 수준이 달라지기 때문에 개략공사비 예측모델에는 이러한 가용정보의 특성이 반영되는 것이 중요하다. 본 연구에서는 사업 초기단계를 크게 기획단계와 설계 초기단계의 두 단계로 구분하여 각 단계의 가용정보 수준 및 공사비 예측의 목적을 고려한 개략공사비 산정모델을 제시하였다. 공사비 예측모델의 개발을 위하여 총 143건의 공사 데이터를 수집하여 활용하였으며, 이를 통해 각 단계의 가용정보 수준에 적합한 공사비 영향변수를 도출하였다. 제안된 기획단계 및 설계초기 단계의 개략공사비 산정모델은 검증과정을 통하여 각 단계에서 요구되는 정확도 수준을 확인하였으며, 이러한 가용정보 수준에 입각한 개략공사비 산정모델은 향후 예산 산정업무나 타당성 조사, 노선 대안 비교검토 등에 활용될 수 있을 것으로 기대된다.