• Architectural research
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• 제23권2호
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• pp.29-37
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• 2021

Early in the communist era, many cities in modern China experienced a special period of passive industrialization during which the construction of urban spaces laid the spatial urban foundation. During this period, the city construction was carried out rapidly under the administrative intervention of the government. The passive industrialization caused by taking economic construction as the center made the city construction deviate from the correct track and resulted in a variety of problems. Focusing on ecological space change, this paper selects Zhengzhou as an example of many similar cities in China, and analyzes the impact of passive industrialization on urban ecological spaces from the perspectives of city scale, city layout and city construction management system. The analysis results reveal that the construction of urban ecological space under the influence of passive industrialization induced a lagging characteristic, led to insufficient integrity of urban ecological space, and placed great pressure on the urban environment. Finally, the paper puts forward some methods to optimize the urban ecological space.

• 한국태양에너지학회 논문집
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• 제36권3호
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• pp.17-23
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• 2016

Passive House represents energy-saving technologies. It aims to save energy and provide comfort to the dwellers. The design and construction began in Germany, where it is commonly observed. In South Korea, implementation of the Passive House concept is difficult because of high construction costs and technological problems. This study performed a POE analysis to analyze the extents of satisfaction and knowledge about Passive House among those who live in them in Germany. The results found high satisfaction with functional aspects, such as ventilation, windows, doors, and the thermal bridge. These research results will provide application criteria for Passive House construction in South Korea.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 추계 학술논문 발표대회
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• pp.143-144
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• 2017

Due to the recent depletion of natural resources and global warming, a passive house type building exterior system has been developed and applied. For this purpose, we developed a building exterior thermal resistance performance evaluation system and verify the feasibility of this system for evaluation of passive house building system.

• 한국건축시공학회지
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• 제14권6호
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• pp.537-543
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• 2014

본 연구는 전과정 평가에 기초한 패시브 공동주택의 친환경성을 평가하는 것을 목적으로 한다. 이를 위해 LCA에 관한 이론적 고찰을 토대로 전과정 단계별 물량정보 및 에너지 사용량 데이터를 구축하였다. 또한, 국가 LCI DB에 기초한 원단위 데이터베이스를 활용하여 산성화, 부영양화, 지구온난화, 자원고갈, 오존층파괴, 광화학적산화물에 대한 환경영향을 평가 분석하였다. 그 결과 패시브 공동주택이 일반 공동주택보다 6대 환경영향에서 환경적으로 우수한 것으로 평가 되었으며 이는 에너지 소비량의 절감이 운영단계에서 6대 환경영향을 큰 폭으로 감소시켰기 때문인 것으로 분석되었다. 이로 인해 건설단계에서의 환경영향의 비중이 상대적으로 증가됨에 따라 기존 에너지 절감 중심의 친환경 기술의 적용과 함께 투입물량의 절감 및 환경영향이 적은 친환경 건축재료의 적용을 통해 전 생애 주기 관점에서 친환경 기술의 적용이 필요할 것으로 사료된다.

• 인문언어
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• 제8집
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• pp.369-387
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• 2006

Which syntactic function should we assign to the 'ga-type' constituent which occurs in the morphological passive constructions in Korean, [N0-neun N1-i Vpass-ending]? This problem is very important in two respects. First, a small change of status of the particle 'i/ga' can exert an overall influence on the Korean grammar. Second, the particle '-i/ga' cannot guarantee that 'ga-type' constituents are subject of the sentence, so that the concept of syntactic category should be distinguished from that of syntactic function. This paper claims that the analysis of sentence has long been focused on the structure of proposition, namely the argument structure and that the direction of analysis should be turned to the 'person structure' which can be revealed on the pragmatic level. On the basis of this, this paper suggests that the specific type of the morphological passive constructions in Korean, [N0-neun N1-i Vpass-ending] should be analysed in line with the psych-verb constructions and that the modal meaning 'potential' of the passive constructions is correlated with sentence pattern and 'person structure'.

• KIEAE Journal
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• 제13권2호
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• pp.39-46
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• 2013

Recently, the field of construction is putting a variety of effort into reducing CO2, since global warming is being accelerated due to climate changes and the increase of greenhouse gas. For reduction of CO2 in the field of construction, it is required to make plans to cut down heating energy of buildings and especially, it is urgently needed to cut down energy of residential buildings in rural area where occupies the majority of consumption of petroleum-based energy sources. Therefore, this research compared and analyzed the actual energy consumption, by evaluating energy performance of a detached house applying passive house design components for reduction of energy. As the result, energy consumption showed remarkable differences, according to the operation of a heat recovery ventilation unit which is one of passive house design components, and building energy consumption displayed remarkable differences, too, depending on the difference of airtightness performance during building energy simulation conducted in process of design. Based on these results, the importance of airtightness performance of passive house was verified. The result of the actual measurement of energy consumption demonstrated that LNG was most economical amongst several heat resources yielded, on the basis of LPG source energy consumption measured within a certain period of time, and it was followed by kerosene. LPG was analyzed to have a low economic efficiency, when used for heating.

• Nuclear Engineering and Technology
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• 제49권7호
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• pp.1431-1441
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• 2017

The Fukushima accident reveals the vulnerability of existing active nuclear power plant (NPP) design against prolonged loss of external electricity events. The passive safety system is considered an attractive alternative to cope with this kind of disaster. Also, the passive safety system enhances both the safety and the economics of NPPs. The adoption of a passive safety system reduces the number of active components and can minimize the construction cost of NPPs. In this paper, reflecting on the experience during the development of the APR+ design in Korea, we propose the concept of an innovative Power Reactor (iPower), which is a kind of passive NPP, to enhance safety in a revolutionary manner. The ultimate goal of iPower is to confirm the feasibility of practically eliminating radioactive material release to the environment in all accident conditions. The representative safety grade passive system includes a passive emergency core cooling system, a passive containment cooling system, and a passive auxiliary feedwater system. Preliminary analysis results show that these concepts are feasible with respect to preventing and/or mitigating the consequences of design base accidents and severe accidents.

• Wind and Structures
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• 제2권1호
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• pp.69-83
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• 1999

The most common used control device on tall buildings and high-rise structures is active and passive tuned mass damper (ATMD and TMD). The major advantages of ATMD and TMD are discussed. The existing installations of various passive/active control devices on real structures are listed. A set of parameter optimization methods is proposed to determine optimal parameters of passive tuned mass dampers under wind excitation. Simplified formulas for determining the optimal parameters are proposed so that the design of a TMD can be carried out easily. Optimal design of wind-induced vibration control of frame structures is investigated. A thirty-story tall building is used as an example to demonstrate the procedure and to verify the efficiency of ATMD and TMD with the optimal parameters.

• 한국지반신소재학회논문집
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• 제8권4호
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• pp.1-8
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• 2009

본 연구에서는 강재스트립 보강재에 횡방향으로 연속되는 지지부재가 결속된 새로운 형태의 보강재에 대하여 대형인발시험을 수행하여 인발저항력을 평가하였다. 시험결과, 지지저항은 수직응력에 대한 영향을 받는 것으로 확인되었으며, 이는 인발저항 평가시 마찰저항과 지지저항을 각각 산정하여 설계에 반영해야 함을 의미한다. 따라서 본 실험대상 보강재의 지지부재에 의한 지지저항강도를 산정한 결과, 수직응력에 따른 수동지지저항에 의한 의존도가 매우 높은 것으로 확인되었다.

• 한국건설관리학회논문집
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• 제14권5호
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• pp.74-83
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• 2013

현재 활용되고 있는 대부분의 BIM체계는 설계 및 시공단계의 작업 현상에 대한 시각적 정보제공에 초점을 두고 있는 수동형 BIM (Passive BIM) 운영체계이다. 수동형 BIM체계에서는 설계성과품의 간섭발생 부위를 3D객체에 의해 시각적으로 파악할 수 있으나, 추가적으로 간섭 상황의 해결방안을 제시하는 것은 곤란하다. 또한 시공단계 4D시뮬레이션도 일정별 시공형태의 표현은 가능하나, 프로젝트 공정조건을 고려한 최적화된 일정계획의 제시 등은 미흡한 수준이다. 그러나 최근 다양한 기관에서 BIM을 적용하면서 사용자의 BIM 요구수준은 이미 시각적 정보제공을 넘어서, 파악된 문제 현상의 해결방안까지 BIM으로 표현할 수 있는 능동형 BIM (Active BIM) 기능들을 요구하고 있다. 본 연구에서는 능동형 BIM의 개념적용을 위해 시공단계의 대표적 BIM 도구인 4D CAD시스템을 예로 하여 능동형 기능 구성방법론을 제시하고 독자적 개발엔진으로 시스템 구현을 시도하였다.