• 제목/요약/키워드: curtain-wall

검색결과 239건 처리시간 0.023초

커튼월의 단열 향상 및 결로 방지를 위한 통기구조 적용방안 연구 (Application of Ventilated Cavity for Enhancing Insulation and Preventing Condensation of Curtain-wall System)

  • 이선우
    • 설비공학논문집
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    • 제29권1호
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    • pp.21-28
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    • 2017
  • Curtain-wall systems have been widely applied to buildings because of their lightweight and constructability characteristics. However, as curtain-wall systems include many building materials, vapor barriers can become damaged and condensation can occur. Due to the material properties of stone curtain-walls, the external appearance and structure of a building could be damaged and the insulating performance of the curtain-wall could be worse. Natural ventilation using an air cavity in a curtain-wall is expected to be effective for the prevention of condensation in inner walls and for the reduction of building cooling energy use in the summer. The purpose of this experimental study is to analyze the influence of a ventilated cavity on the insulating performance of a curtain-wall and the ventilated cavity depth and ratio of top opening needed to prevent condensation in a curtain-wall.

프로젝트 단계별 LOD가 반영된 스마트 BIM 커튼월 라이브러리 체계 구축 (Proposal of Smart BIM Library Framework for Curtain Wall with different LOD on each project stage)

  • 김범준;김성아;김병주;진상윤
    • 한국BIM학회 논문집
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    • 제7권2호
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    • pp.44-55
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    • 2017
  • Recently, there has been a growing interest in the life cycle management field of buildings through the introduction of BIM. And as BIM application is expanded, BIM ordering guidelines and guidelines are becoming popular. Also, as diverse forms of buildings including super high-rise building have been generalized, attention to the importance of curtain walls that are advantageous for construction period shortening, building lighting and quality homogenization has been increasing. However, all BIM information from the design stage to the maintenance stage is not accumulated in stages. And the input information is not improved in proportion to the level of appearance of the BIM model. Also, current curtain wall designs rely heavily on curtain wall consulting firms or utilize accumulated data from existing processes. In this study, curtain wall components, shape and property information were derived by analyzing BIM guidelines and curtain wall construction standards to contribute to solving these problems. And the curtain wall smart BIM library which can be converted according to LOD(Level of Development) has been produced and its applicability has been verified. Through the library, curtain wall information can be systematically managed in the library from design to construction and maintenance. And the library will contribute to the expansion and activation of the BIM library market in the future.

멀리온을 레일로 활용한 커튼월의 시공에 따른 경제성 평가 (Economic Evaluation according to Construction and Curtain Wall Mullion as a Rail)

  • 정의인;홍상훈;공희민;김봉주;염상수;강희태
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2016년도 춘계 학술논문 발표대회
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    • pp.17-18
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    • 2016
  • Today, many kind of buildings are higher than those of previous generations, and Curtain Wall is adapted broadly as an outer wall material. But weather and environmental condition could cause problems in curtain wall construction in most construction projects. High wind speed and unplanned lifting equipment's allocation could cause construction delay and cost increase. To solve these problems, we suggest using a curtain wall mullion as a rail to lift curtain wall which is less affected wind speed. And we would like to show a preliminary data of its economic advantage evaluation.

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스틸-알루미늄 복합 프레임을 갖는 커튼월의 내화성능에 관한 실험적 연구 (An Experimental Study on Fire Resistance Performance of Curtain-Wall System with Steel-Aluminum Hybrid Frame)

  • 이재승;임현창;조봉호;김흥열
    • 한국화재소방학회논문지
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    • 제25권6호
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    • pp.104-111
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    • 2011
  • 현재까지 알루미늄은 커튼월의 프레임 재료로서 광범위하게 사용되어 왔다. 최근에 건축물의 초고층화와 더불어 커튼월의 프레임 재료로서 알루미늄에 비해 강도와 열 저항능력이 큰 스틸에 대한 관심이 증가하고 있다. 본 연구에서는 알루미늄 커튼월과 스틸-알루미늄 복합 커튼월에 대한 내화성능을 EN 13830에 근거하여 차염성, 차열성 및 복사열 차단성능에 대하여 평가하였다. 실험결과, 알루미늄 커튼월에 비해 스틸-알루미늄 복합 프레임 커튼월의 차염성능은 15분, 복사열에 대한 성능은 13분 상향 평가되었다. 프레임의 붕괴는 스틸-알루미늄 복합 프레임의 경우 36분, 알루미늄 커튼월의 경우 13분이었으나, 차열성능은 내화유리의 온도에 의해 모두 6분으로 평가되었다.

전용 양중틀을 활용한 초고층 건물의 슈퍼블럭 유닛 커튼월 시공 (Construction of Super-block Unit Curtain Wall for High-rise Buildings Utilizing a Specialized Installing Equipment)

  • 정삼룡;이상헌;옥영무
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
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    • pp.174-181
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    • 2004
  • 국내 최고 높이를 자랑하는 초고층 건물인 타워팰리스 III에 적용된 슈퍼블럭 유닛 커튼월 시공 공법에 대해서 소개한다. 타워팰리스 III는 공기 단축을 위하여, 벨트월 구간의 외주 커튼월을 별도로 후시공하는 Up-Up 공법을 적용하였다. 벨트월 구간의 커튼월을 후시공하는 과정에서 3개층 분량에 해당되는 대형의 커튼월 블럭을 지상에서 선조립한 후에, 타워크레인을 사용하여 한 번에 시공하는 슈퍼블럭 유닛 커튼월 공법을 개발하고 적용하였다. 이 공법의 실현을 위하여 전용의 양중틀을 개발하여 활용하였고, 슈퍼블럭 유닛 커튼월의 시공을 위하여 비워둔 벨트월 상부층의 커튼월을 시공하기 위한 역시공 장비를 개발 적용하였다. 이러한 신공법의 적용을 통하여, 커튼월 시공용 가설 비계의 설치를 생략하였으며, 공기단축과 경비 절감과 같은 경제적 효과 외에도, 안전 확보와 생산성 향상 등의 효과를 얻을 수 있었다.

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OPTIMIZING QUALITY AND COST OF METAL CURTAIN WALL USING MULTI-OBJECTIVE GENETIC ALGORITHM AND QUALITY FUNCTION DEPLOYMENT

  • Tae-Kyung Lim;Chang-Baek Son;Jae-Jin Son;Dong-Eun Lee
    • 국제학술발표논문집
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    • The 3th International Conference on Construction Engineering and Project Management
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    • pp.409-416
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    • 2009
  • This paper presents a tool called Quality-Cost optimization system (QCOS), which integrates Multi-Objective Genetic Algorithm (MOGA) and Quality Function Deployment (QFD), for tradeoff between quality and cost of the unitized metal curtain-wall unit. A construction owner as the external customer pursues to maximize the quality of the curtain-wall unit. However, the contractor as the internal customer pursues to minimize the cost involved in designing, manufacturing and installing the curtain-wall unit. It is crucial for project manager to find the tradeoff point which satisfies the conflicting interests pursued by the both parties. The system would be beneficial to establish a quality plan satisfying the both parties. Survey questionnaires were administered to the construction owner who has an experience of curtain-wall project, the architects who are the independent assessor, and the contractors who were involved in curtain-wall design and installation. The Customer Requirements (CRs) and their importance weights, the relationship between CRs and Technical Attributes (TAs) consisting of a curtain-wall unit, and the cost ratios of each components consisting curtain-wall unit are obtained from the three groups mentioned previously. The data obtained from the surveys were used as the QFD input to compute the Owner Satisfaction (OS) and Contractor Satisfaction (CS). MOGA is applied to optimize resource allocation under limited budget when multi-objectives, OS and CS, are pursued at the same time. The deterministic multi-objective optimization method using MOGA and QFD is extended to stochastic model to better deal with the uncertainties of QFD input and the variability of QFD output. A case study demonstrates the system and verifies the system conformance.

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박스형 이중외피와 커튼월 창호의 난방기 열적성능 비교 (A Study on thermal performance of box type double skin facade and curtain wall in heating period)

  • 박창영;최창호;이건호;윤용상
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2006년도 하계학술발표대회 논문집
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    • pp.909-914
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    • 2006
  • The purpose of this study is to analyze the thermal of DFS(double Facade System) and curtain wall in the heating period. The physical difference between curtain wall and double facade on thermal performance has been tested at the newly constructed laboratory, which can turn $360^{\circ}$ to confirm the characteristic of a facade with the various directions. This study divide on 'ventilated, airtight' and 'heated or unheated' conditions from the CASE 1, 2, 3, 4. The results showed thermal performance of double facade system which has been better than curtain wall. The heating energy of DFS reduced $8%{\sim}10%$ of energy consumption. comparable to SFS in experemted results. In view of the researching results so far achieved, the research came to a conclusion, that the curtain wall can save the energy in the heating period than a curtain wall.

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열교부위를 고려한 커튼월 사무소 건물의 열성능 해석에 관한 연구 (A Study on the Thermal Performance Analysis of Curtain Wall Office Building Considering the Thermal Bridges)

  • 신우철;김승철;윤종호
    • 한국태양에너지학회 논문집
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    • 제31권3호
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    • pp.95-100
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    • 2011
  • Currently, office buildings in Korea tend to adopt as their outer wall the curtain wall structure which can be easily constructed and has beautiful external appearance as well. However, the problem is that the curtain wall structure does not have a uniform composition unlike the wall of existing reinforced concrete structures and has a frame made of metal with high heat conduction. Therefore, it is expected that the structure will be highly influenced by the thermal bridge. Thereupon, this study analyzes how to set up the composition of the wall system and heat transmission rate in consideration of the thermal characteristics of the curtain wall structure and applies it in practice by simulation in order to propose a guideline for the energy simulation method of the curtain wall structure and analyze its differences from existing simulation methods.

유닛 커튼월 프로파일 형상 변화에 따른 구조 성능 검토에 관한 연구 (A Study on the Structural Performance Review as Design Change to the Unit Curtain Wall Profile)

  • 정의인;홍상훈;김해나;박준서;김봉주
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2023년도 봄 학술논문 발표대회
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    • pp.247-248
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    • 2023
  • The unit curtain wall is an exterior finish currently used on the exterior walls of high-rise buildings. Although the structural impact is not significant due to the non-strength wall, in the case of the unit curtain wall to which the factory manufacturing method is applied, deformation of the profile may occur according to its own weight. Therefore, in this study, stability is evaluated through design standard calculation applied when finishing the outer wall according to the design shape of the unit curtain wall profile.

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스틸 커튼월의 단열성능 및 결로방지성능 평가 (Evaluation of the Thermal Performance and Condensation Resistance of a Steel Frame Curtain Wall System)

  • 김선숙;조봉호
    • 한국태양에너지학회 논문집
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    • 제33권3호
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    • pp.51-57
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    • 2013
  • Metal curtain wall systems are widely used in high-rise commercial and residential buildings. While aluminum is the most frequent used frame material, steel framing is also reemerging as a high-performance material in glazed curtain walls due to less thermal conductivity and design flexibility. The purpose of this study is to evaluate thermal performance of a steel frame curtain wall system by comparing with a aluminum frame curtain wall system. The thermal transmittance was measured according to KS 2278, and condensation resistance was calculated by the test results according to KS F 2295. The steel framing test specimen showed lower thermal transmittance and temperature descending factor compared to the aluminum framing test specimen.