• 제목/요약/키워드: ecological concrete

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장스팬이 가능한 친환경 공동주택용 철골 프리캐스트 합성보 개발 (Development of Long-Span Steel-Precast Composite Beam for Green Apartment Building)

  • 윤태호;홍원기;박선치;윤대영
    • KIEAE Journal
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    • 제11권1호
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    • pp.9-14
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    • 2011
  • Currently, the multi-residential apartments used in Korea are mostly bearing wall apartments which don't satisfy consumers for the lack of architectural plan flexibility. And due to remodelling-incompatible, bearing wall apartments have to be reconstructed. It is, thus, necessary to develop multi-residential apartments utilizing composite beam that can replace the conventional bearing wall-type apartment buildings. Composite beams proposed in this paper ensure modification of space and quality control, while the floor heights are maintained at the same floor height as in bearing wall structures. This study analyzes the experimental behavior of composite beams with proper combination of structural steel, reinforced concrete, and precast concrete. By comparing with the theoretical analysis and experimental results, the accuracy of flexural moment capacity and neutral axis was evaluated. The experiments were performed by two simply-supported specimens using loading and unloading. When the analysis results were compared with the experimental results, the flexural moment capacity of the composite beam was shown with an error of approximately -0.5 to 0.1% at the maximum load limit state.

이산화탄소 흡수량 정량분석을 통한 콘크리트의 친환경성능에 관한 실험적 연구 (An Experimental Study on the Sustainable Performance of Concrete through the Quantitative Analysis of Carbon Dioxide Absorption)

  • 최진영;이한승;경제운;이상현;양내원
    • KIEAE Journal
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    • 제7권4호
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    • pp.113-118
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    • 2007
  • From the construction material the cement and the concrete which will reach to 90% are used to construction. But the cement occurrence (from the whole industry 4.4% of carbon dioxide exhaust quantity) makes the carbon dioxide of manufacture hour and anti- the recognition which is an environment industry. The cement absorbs the carbon dioxide during life period of the life time. It calls carbonation. In this study in order to evaluate the carbon dioxide absorption of the cement test produced the mortar specimens which it follows in the W/C. And carbonatable material of mortar specimens (calcium hydroxide) the quantitly it measured, reference study it led and absorption of carbon dioxide quantity it produced. Finally two result comparisons leads and it is a fundamental study which does the test evaluation possibility and a propriety investigation of carbon dioxide absorption quantity in objective.

탄소감축과 기후변화에 대응하기위한 프랑스의 관련 정책 및 도시계획 연구 (Studies of French policies and urban planning for responding to climate change and carbon reductions)

  • 이성근
    • KIEAE Journal
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    • 제12권1호
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    • pp.65-71
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    • 2012
  • This study aims to find out a institutional base in urban planning and urban project, confronted with climate change and necessity of sustainable development in France. The establishment of Grenelle Environment Law became a start point to draw concrete effect and implement urban projects. The relation in urban policy on climate change and its concrete shape in urban projects are examined in this paper, especially focused on HQE2R criteria and Eco-Quartier projects. It provides various information on ways to improve Korea urban planning, urban revitalization and development projects, which is in similar situations and necessity in France. As shown in the case of France, for the sustainable urban development related on climate change, it is necessary of Central Government's firm and clear policy framework, as well as the institutions and organizations linked to actual process of local communities are required. In addition, through the development of indicators applicable to urban development and architectural process, objective and rational framework for planning and design standards should be established.

공동주택 거주 고령자의 건강주거 인식특성 및 요구에 관한 연구 (The Elderly's Perspectives on Apartments as a Healthy Home Environments)

  • 조성희;강나나;전은정
    • KIEAE Journal
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    • 제10권6호
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    • pp.81-89
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    • 2010
  • This study focuses on a concrete understanding of the characteristics of perceptions and needs about healthy housing of the elderly, who represent the most vulnerable group of people in society, on the four evaluation dimensions of healthy housing as part of the research for evaluation indicators development for housing health performance in apartments. First, it was found that the elderly perceive an environment where their physical health is well supported as the most important factor for healthy housing. Additionally, the management support of the housing was perceived as the second most important consideration. Second, the most frequently used area for the elderly is the living room and a desired place to be added to indoor spaces was a room of their own or a 'living room', which clearly indicates the importance of the indoor environment for the elderly. Third, the biggest factor for the interior environment that affected the satisfaction level of the elderly in their housing was largely based on the convenience factor that helped lesson the discomfort in their daily life due to the physical aging process, and also on factors related to the pleasant indoor surroundings. Based on the concepts discovered in this study on healthy housing, more concrete items should be developed in the future for an extensive indicator for health performance evaluation, and actual research on the general public should follow suit.

아트리움 건축의 개방감을 상승시키는 계획조건에 관한 연구 (A Study on Planning Conditions to Improve Openness assessment in Atrium)

  • 이지영;임재한;정진주
    • KIEAE Journal
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    • 제8권2호
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    • pp.41-46
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    • 2008
  • Owing to a space covered by glass, atrium is an attractive space with a possibility as an inner public space but a typical building type with a high-energy load. From the aspect of global environmental issues, to reduce energy load is an important assignment to solve. Contriving a planning guideline of an opening is considered as the most effective environment adjustment method, to offer a highly assessed amenity space and secure openness to outside, keep the energy load to a minimum, and apply the natural energy such as daylight to a maximum at the same time. Users' assessment of environment was performed by questionnaire survey, then the structure of users' assessment was analyzed and design condition was regulated by multiple regression analysis. The opening design guideline to offer a highly assessed space was proposed with concrete environment adjustment method.

초고층 공동주택의 평수와 층수에 따른 바닥충격음 차음 특성 (Impact Sound Insulation Characteristics of Floors according to the number of P'yong and Layers)

  • 이상우
    • KIEAE Journal
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    • 제4권3호
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    • pp.71-78
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    • 2004
  • Apartment housing is a widely-spread type in Korean housing market. Nevertheless, it has caused serious problems such as traditional community corruption, unsafe structure, defects and litigation from noise. Noise, especially in concrete structure for apartment housing, is hardly controlled in proper to prevent sound transmission between upper and lower families with existing system. In foreign countries, there are floating floor system to enhance the noise control performance in multi-family housing. This study is to examine the impact sound insulation performance of floors according to the different P'yong and Layers by field measurement in highrise building.

오픈하우징의 설계방식에 관한 유형체계 연구 (Typological Study of the Planning Method in Open Housing)

  • 모정현;이연숙
    • KIEAE Journal
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    • 제3권4호
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    • pp.15-22
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    • 2003
  • Open housing is an emerging, new concept in housing development that combines demand-orientation with environment-friendliness. Its methodology, however, has not been analyzed in a systematic way. In this study, the features of planning method in open housing were analyzed to systematize types of the planning method. The existing planning methods of open housing was reviewed and they can be classified into three approaches such as pattern, module and organization planning. Given three approaches, the existing planning methods of open housing can be sub-classified as follows; free and patterned planning by patterns, modular and non-modular planning by modules, and hierarchical and non-hierarchial planning by organizations. The framework for the typological analysis was made based on the classification and a composite typological system was drawn from the analysis of the existing planning features. The suggested classification of features in open housing is expected to contribute to the clear definition of characteristics on open housing to provide a basis for the concrete realization method, to analyzing problems with the existing planning methods and to providing their solutions.

무주군 진도리의 생태마을 조성계획에 관한 연구 (A Study on Eco-village Planning in Chindo-ri, Muju-kun)

  • 장원;김경화;최귀선
    • 환경영향평가
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    • 제8권1호
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    • pp.141-146
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    • 1999
  • This paper proposes the planning and design of the Eco-village centering around Chindo-ri, Muju-kun. The Eco-village project has three basic objects the Eco-village residents' lives adapting to ecological principles such as regeneration and circulation, life agricultural techniques based on organic cycle, and residents' harmonious lives with the surrounding nature. For constructing of the Eco-village, first, the subject area was analyzed in terms of the natural and cultural environment and then, on this analytic ground the concrete concept and the specific plan were set up. The following details also should be considered: the scale of the residential household, the population, the space arrangement of the village, the material cycling structure, the waste treatment, the purification of the sewage, the energy supply, the landscape architecture, the production activity, the conservation of the ecosystem and so on.

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재활용 소재를 활용한 숯보드용 표면처리재 개발에 관한 연구 (A Research about charcoal board surface processing material development that utilize recycling site)

  • 이태구;문종욱
    • KIEAE Journal
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    • 제4권4호
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    • pp.3-10
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    • 2004
  • If move in in the new apartment usually, do that hundreds hazardous substance among air floats and is broken-down. In the case of the floor, organic compound turns in adhesives that is bitter when attach the reinforcement floor and material lumber and hazardous substance is exhausted much wallpaper and concrete. Therefore, to reveal maximum this research to apply on interior of building to live function of charcoal, at non combustible material two faces that can promise safety from fire, strong and satisfy light performance, and it is thing about development of sheathing that use recycling material for barren land of multi-function and surface treatment of charcoal board as well as can keep healthy indoor environment.

도시 내 공원과 하천의 기온변화율과 기온완화효과에 관한 연구 (A Study on the Temperature Variation Rate and Temperature Controlling Effect of Parks and Rivers in a City)

  • 이강국;김태우;서원덕;홍원화
    • KIEAE Journal
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    • 제11권3호
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    • pp.3-9
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    • 2011
  • For urban development, natural covering area such as urban green or river is more rapidly reducing than artificial surface covering area like concrete or asphalt, so thermal environment in a city is being drastically deteriorated. Recently, since people recognize the importance of parks or rivers in a city which play roles as an environmental buffer in it, many studies and policies consider how to improve the life quality of citizens and urban environment. This study aims to examine the status of thermal environment variation in the parks and rivers of the city which is the subject of this research and provide foundational data for urban environment plans through research on temperature variation rate and temperature controlling effect.