• 제목/요약/키워드: Construction Period

검색결과 2,705건 처리시간 0.033초

지하철골공사 공사비산정기준 마련을 위한 현장조사 연구 (A Study on the Establishment of Construction Cost Estimation Standard of Underground Steel Construction through Field Survey)

  • 송태석;한상준;안방율
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 봄 학술논문 발표대회
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    • pp.339-340
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    • 2023
  • Steel construction is one of the commonly used methods in building construction due to its efficiency in terms of time and cost. In particular, the top-down method using steel frames is widely used in the construction of underground structures in urban areas to shorten the construction period. However, there is currently no standardized cost estimation for subway steel frame construction in Korea, causing difficulties in determining the expected cost. In this study, we aim to provide basic data for establishing a cost estimation standard for subway steel frame construction through on-site surveys of subway steel frame construction commonly used in urban areas.

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VIRTUAL CONSTRUCTION OF TRANSFER FLOORS IN REINFORCED CONCRETE BUILDING USING BIM

  • Kwangho So;Bohwan Oh;Yongjik Lee;Hyungeun Lee;Taehun Ha
    • 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.12-16
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    • 2011
  • Building Information Modeling (BIM) is being widely spread in AEC industry worldwide and also in South Korea. Although the creation of digital model is better to be started at design stage, it can also improve the productivity of construction by simulating the actual construction process and environment. This paper presents application of BIM-based simulations related with design changes to transfer floors in 58-storey reinforced concrete office building. Transfer floor is not only a structurally important part of the building but also a challenging part of the actual construction in terms of sequence and period due to the complexity of the work. Preconstruction of rebar, mechanical, and plumbing is performed to review the construction drawings and to perform clash detection. Each item of application is evaluated for its effectiveness on actual construction and for the development potential.

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공동주택 마감공사의 하자보수기간 현황 및 연관성 연구 (Study on the Defects of Finishing Works of Apartment Houses during Warranty Liability Period and its Correlation)

  • 이웅균;서덕석
    • 한국건축시공학회지
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    • 제17권4호
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    • pp.385-391
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    • 2017
  • 공동주택의 공종별 책임 하자 보증기간은 과학적인 분석에 근거를 두지 않고 있어. 기간의 적절성이 분쟁의 원인이 되고 있다. 이에 따라 본 연구에서는 2010~2011기준 국토교통부 하자심사 분쟁조정위원회에 접수된 하자제기건수 중 공동주택 하자 중 가장 많이 제기된 마감공사의 하자실태를 파악하여 하자보수기간의 적절성을 평가하고자 하였다. 마감공사의 하자청구건수를 분석한 결과 대부분의 공종별 하자는 2년 이후에도 나타나고 있으며, 60% 정도만이 하자담보책임기간 내에 청구되고 있는 실정이다. 공종별 하자는 상호간에 연관성을 가지고 있으며 이러한 점은 시공의 관리 차원에서 고려되어 공법의 개선이 필요한 것으로 나타났다. 공동주택의 선호도에 큰 영향을 끼치는 시공능력평가 순위와 하자발생의 상관성이 낮은 것으로 보아 실제 수행하는 전문업체의 하자관련 검증 절차가 필요한 것으로 판단된다.

제천시 다문화가정의 사회적 리포지셔닝 연구 : 사회적 구성주의의 관점에서 (The Study for Social Repositioning of Multi-Cultural Family in Jecheon City : From the perspective of Social Construction)

  • 김수완;박상혁
    • 문화기술의 융합
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    • 제5권1호
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    • pp.45-50
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    • 2019
  • 본 연구는 제천시의 다문화 가족을 중심으로 포지셔닝에 대한 사회적 위치 변화에 어떤 요인이 영향을 미치는지 분석하였다. 또한, 본 연구의 목적은 제천시의 다문화 가족의 사회적 위치, 사회적 인식의 영향에 따라 정책설계를 분석하며, 1990년부터 2013년까지 뉴스기사, 인터뷰를 분석한 질적분석 방법을 수행하였다. 시간범위는 1990년대 다문화가정의 태동기, 2000~2005년 다문화가정의 양적 성장기, 2006~2011년의 다문화가정의 질적 성장기, 다문화 가정의 2012년 이후의 다문화가정의 반감기 시기로 구분하여 분석 할 수 있다.

3차원 가상건설기반 건축구조시스템의 개발방향 (A Development direction of the building structural system based on the 3D virtual construction)

  • 신태송;조영상;천진호
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2007년도 정기 학술대회 논문집
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    • pp.346-351
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    • 2007
  • As the construction technology is rapidly advancing internationally, the necessity of virtual construction technology development is drastically demanded in the construction industry together with a fusion technology with information technology(IT). The construction technology will be changed as the paradigm of construction technology in the future. The establishment of building structural system in the virtual construction basis is necessary for the integration of construction process, and it will be expected to produce the effect of reduction of construction period and quality improvement through the environment of integration. This study is to present the analysis of the existing process of structural design, the content of research & development as per the building structural system on virtual construction basis and the direction of research.

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인프라건설 프로젝트 리스크 분석에 따른 손실 정량화 모델 개발 연구: 교량프로젝트를 중심으로 (Development of Loss Model Based on Quantitative Risk Analysis of Infrastructure Construction Project: Focusing on Bridge Construction Project)

  • 오규호;안성진
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2022년도 봄 학술논문 발표대회
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    • pp.208-209
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    • 2022
  • This study aims to analyze the risk factors caused by object damage and third-party damage loss in actual bridge construction based on past insurance premium payment data from major domestic insurers for bridge construction projects, and develop a quantitative loss prediction model. For the development of quantitative bridge construction loss model, the dependent variable was selected as the loss ratio, and the independent variable adopted 1) Technical factors: superstructure type, foundation type, construction method, and bridge length 2) Natural hazards: flood anf Typhoon, 3) Project information: total construction duration, total cost and ranking. Among the selected independent variables, superstructure type, construction method, and project period were shown to affect the ratio of bridge construction losses, while superstructure, foundation, flood and ranking were shown to affect the ratio of the third-party losses.

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폐타이어와 폐유리 미분말을 소재로 한 무기질 탄성도막 방수공법에 관한 실험적 연구 (An Experimental Study on the Cement-Polymer Coatings Waterproofing Method Composed with Waste Tire Chip and Waste Glass powder)

  • 김영삼;양승도;이성일;김윤욱;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2002년도 학술.기술논문발표회
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    • pp.17-22
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    • 2002
  • This Waterproofing Material which mainly consisted of 2 components of waste tire chip powder and waste glass powder. This Study is abut development of waterproofing Material, There is not tried in domestic. The most Motive of this Study wishes to recycle resources and get the economic performance for waterproofing Material The result of this Study is as followings. (1) Dense waterproofing floor is formed between waste tire chip by Coupling Agent(the most effective method to encourage adhesive strength and raise cohesion of material by combination.) (2) Expected to bring effect to shorten construction period at spot application potentially space-time in moisture aspect. Also, shortening effect of construction period and spot work are considered to be gone efficiently selecting pre-mix construction method. (3) This development Waterproofing material has elasticity that nature side compatibility of cement ingredient and plastic Emulsion have when utilize and constructs waite resources (being waste tire chip and waste glass powdered).

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지심도(只心島)의 일본군사시설에 관한 연구 (A Study on the Japanese Military Installations of Jisim-do)

  • 이지영;서치상
    • 건축역사연구
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    • 제22권5호
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    • pp.37-46
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    • 2013
  • This paper aims to examine the constructional background and process of the Japanese military installations of Jisim-do, especially based on the military secret documents. Furthermore, it aims to analyze the characteristics of the remains. First, the study looked into the procedure of forcible occupation by Japan, involving the background of the designation and forcible accommodation of military reservations, and forced eviction by the purchase of land. Second, the study identified the background of construction, purpose, and construction period of each battery built throughout the 'Fort maintenance period' according to changes in international situations. Third, it is the 'Chukseongbu' that supervised the construction of fortresses. Fourth, the study considered a series of arrangement processes in which Jisim-do became a fortresses through "Yukgunsungdae-ilgi", a military operations report for the Japanese army. Through this, it discovered a clear construction process, construction details, and the supply for Jisim-do. The study was also able to reveal the meticulousness in constructing firm facilities more promptly from the 'design tactics'.

조선시대 심의 구성이론 (The Construction Theary of "Sim-Eui" During Chosun Dynasty)

  • 조효춘
    • 복식
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    • 제27권
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    • pp.27-40
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    • 1996
  • 1.It was recorded at "Dong Gook Tong Gam" of King "Jang Soo" that "Sim-Eui" in Korea was first introduced from China at the reign of King, "Moon Ja"(491,A.D), Go Goo Ryo. 2."Sim-Eui" was worn as a mourning dress during the period of "Go Ryo" and as a concanical robe of Confucian, a ceremonial dress at home and for the rules of etiquettes during Cho Sun Dunasty. 3.Several theories about the construction and the using services of "Sim-Eui" are obseved and summerized. 4.Mr. Kyu-soo Park gives a definition to "Sim-Eui" as a Fortune of Heaven & Earth, the Constellation of the Cosmic Dual Forces, the Revolution of the Four Seasons, a dignified mien & the Way of a Man of Virtue and Virtue of the golden Mean. 5.I observed the concrete measurements of the each parts of "Sim-Eui" by the construction method of Kyu-Soo Park. 6.The Symbolic Meaning following the Idea of Mr. Chung, Hyun. describes well the line of thinking in our nation, and Idea of Loyalty & Filial Piety, a Man of Virtue and the Virtue of the Golden Mean. 7.As described above, I dare insist of the fact that the Construction Theory of "Sim-Eui" by Kyu-Soo Park during the letter period of Chosun Dynasty is full of our national manners and cus-toms with symbolizing meaning, construction's exquisiteness, clothes' materials and it's size most suitable to our people, to the exclusion of the defects in "Sim-Eui" of China and Japan.

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플라이 애쉬 및 고로슬래그 혼입 시멘트 페이스트의 CO2 양생 기간에 따른 초기강도의 영향에 대한 연구 (A Study on the Effect of Initial Strength of Cement Paste Containing Fly Ash or Blast Furnace Slag on CO2 Curing Period)

  • 한재도;이한승
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 추계 학술논문 발표대회
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    • pp.83-84
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    • 2018
  • As the concentration of greenhouse gases in the atmosphere increases, the reduction of CO2 is gaining worldwide attention. In the construction industry, cement replacement materials such as fly ash and blast furnace slag were investigated to reduce CO2 emissions in cement production process. Precast concrete is used in the field after manufacturing in the factory in the form of pipes and bricks because of shortening construction period and cutting construction cost. According to the results of previous research, it is known that early CO2 curing in concrete using OPC or fly ash has an initial strength enhancement effect and can be used for precast concrete production. Therefore, the purpose of this study is to evaluate the strength improvement effect by confirming the initial strength improvement effect when blast furnace slag is mixed.

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