• Title/Summary/Keyword: Supported Housing

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A Study on Seismic Restraint of Korean Type Building Gas Piping (한국형 건축물 가스 배관의 내진 고정장치에 관한 연구)

  • Lim, Geon-Tae;Lim, Sang-Ho
    • Industry Promotion Research
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    • v.4 no.1
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    • pp.11-20
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    • 2019
  • This study relates to a fixing device for gas piping installed in a building such as an apartment or a building. The gas piping is fixed to the inside of the housing so as to buffer the gas piping in all directions, thereby relieving vibration caused by an earthquake or an impact, Disclosed is an earthquake-proof fixing device for a gas pipeline that can minimize damages caused by damage to an earthquake and a gas pipeline by preventing damage and breakage. An apparatus for fixing a gas pipe to a bracket provided on a wall or a wall of a building, the apparatus comprising: a housing coupled to a wall or a bracket and coupled to the inside of the housing; a gas pipe penetrating through the housing to fix the gas pipe; The first plate spring includes a first plate spring formed with a plurality of concave-convex portions that are elastically supported in four directions. The first plate spring is screwed to the front surface or the rear surface of the housing. The lower plate is coupled to one end and the other end, And a pair of first adjusting screws for adjusting the elastic force of the spring. Through this study, damage and damage of gas piping due to earthquake or impact can be minimized.

Supply Method of Photovoltaic Equipment for Detached Houses Using Payback Period Analysis (투자비회수기간 분석에 의한 단독주택용 PV설비 보급방안)

  • Kang, Seok-Hwa;Kim, Jae-Yeob
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2014.05a
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    • pp.154-155
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    • 2014
  • Small photovoltaic equipment spreads to the detached house owing to the support of government. This study analyzed the payback period of small photovoltaic equipment, and presented a plan of spreading PV equipment by electricity consumption according to the results. The results of payback period analysis showed that a household of 500kWh or above in the average monthly electricity consumption could produce an economic effect without the subsidies of government, and a household of 300kWh or above could secure economical efficiency in case of receiving the subsidies of government and municipality. However, it was shown that the economic effect was not large in case of a household of less than 250kWh. Therefore, the analysis showed that it would be necessary to be supported by additional subsidies or to develop a new supporting policy with regard to a household of less than 250kWh.

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Performance Evaluation of a Lubrication Seal for Freight Cars (화물열차 차축용 저 마찰 오일실의 성능 평가)

  • Kim, Jae-Hoon;Shin, Kong-Soon;Kim, Jun-Ho;Goo, Byeong-Choon
    • Journal of the Korean Society for Railway
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    • v.9 no.6 s.37
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    • pp.630-634
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    • 2006
  • Rail car axles are very important parts for safety of passengers and structural integrity of vehicles. The axles are supported by bearings. To seal grease lubricating the bearings of freight cars, an oil seal has been developed. The developed oil seal is composed of an inner plate, an outer plate and a seal rubber. The friction between axle and housing with the developed oil seal is very low. The seals are designed for a minimum life expectancy of 800,000 kilometers service. In this study, an accelerated durability tests according to AAR Specification M-934-82 were carried out. In addition, various performance tests according to KS B 2804 were conducted.

철도 화물차량 차축용 비접촉식 오일실의 가속내구시험

  • Gu, Byeong-Chun;Kim, Jae-Hun;Sin, Gong-Sun;Kim, Jun-Ho
    • Proceedings of the Korean Reliability Society Conference
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    • 2006.05a
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    • pp.40-47
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    • 2006
  • Rail car axles are very important parts for safety of passengers and structural integrity of vehicles. The axles are supported by bearings. To seal grease lubricating the bearings of freight cars, a non-contact oil seal has been developed. The developed oil seal is composed of inner plate, outer plate and seal rubber. The friction between axle and housing with the developed oil seal is very low. The seals are designed for a minimum life expectancy of 800,000 kilometers service. In this study, an accelerated durability tests according to AAR Specification M-934-82 were carried out. Developed products satisfy the AAR Specifications.

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Evaluation of GIS-supported Route Selection Method of Hillside Transportation in Nagasaki City, Japan

  • Watanabe, Kohei;Gotoh, Keinosuke;Tachiiri, Kaoru
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.543-545
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    • 2003
  • In this study, the authors evaluate the suitability of the candidate routes selected by the route selection method, which is developed by the authors, by combination of Geographic Information Systems (GIS) and Analytic Hierarchy Process. To evaluate the suitability of the candidate routes, from the viewpoint of the residents, we have considered element factors such as, population, household, aging situation, elevation, gradient, housing density and the Control Point. The results of this study are expected to assess the suitability of the candidate routes of the hillside transportation for the residents and examine the application limit of the route selection method.

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Spatio-Temporal Distribution Analysis of One-Person Household - The Case of Busan City - (1인가구의 시공간적 분포 분석 - 부산시를 사례로 -)

  • Yoo, Chang-Ju;Nam, Kwang-Woo
    • Journal of the Korean Association of Geographic Information Studies
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    • v.17 no.2
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    • pp.59-71
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    • 2014
  • At present, Korean one-person households have been continuously increased in spite of the reduction of total population. The increasement of one-person household has become a social and institutional issue. It is necessary to response socially and economically to not only changes of housing demand but also the disadvantaged classes such as the socially weak and single elderly household from the national level. In this respect, this research examined the spatial distribution (such as the increasing area, high-density area, and majority area) of one-person household with census data in the city of Busan. The clusters of one-person households were selected by focusing on the spatial distributions by time series changes of 2000, 2005, and 2010 and considering their housing characteristics. In terms of policy efficiency, the clusters of one-person households to be supported by priority were derived by analyzing the census data from 6066 output areas in the city of Busan. As a result, lots of one-person households of juniors were distributed around the university town, office facility, and station service area. Lots of one-person households at middle-aged class were distributed in Busan's original downtown and mountain-side road. Generalizing these characteristics, cluster analysis was conducted. As a result, one-person household dense area in Busan could be classified into four types. This research should be utilized as a counterplan for increasing the housing demand of one-person household or basic data for supporting small housing supply policies in the future.

Finite Element Modal Analysis of a Spinning Flexible Disk-spindle System Supported by Hydro Dynamic Bearings and Flexible Supporting Structures in a HDD (유연한 지지 구조와 유체 동압 베어링으로 지지되는 HDD의 회전 유연 디스크-스핀들 시스템에 대한 유한 요소 고유 진동 해석)

  • Han, Jaehyuk;Jang, Gunhee
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.15 no.3 s.96
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    • pp.251-258
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    • 2005
  • The free vibration of a spinning flexible disk-spindle system supported by hydro dynamic bearings (HDB) in an HDD is analyzed by FEM. The spinning flexible disk is described using Kirchhoff plate theory and von Karman non-linear strain, and its rigid body motion is also considered. It is discretized by annular sector element. The rotating spindle which includes the clamp, hub, permanent magnet and yoke, is modeled by Timoshenko beam including the gyroscopic effect. The flexible supporting structure with a complex shape which includes stator core, housing, base plate, sleeve and thrust pad is modeled by using a 4-node tetrahedron element with rotational degrees of freedom to satisfy the geometric compatibility. The dynamic coefficients of HDB are calculated from the HDB analysis program, which solves the perturbed Reynolds equation using FEM. Introducing the virtual nodes and the rigid link constraints defined in the center of HDB, beam elements of the shaft are connected to the solid elements of the sleeve and thrust pad through the spring and damper element. The global matrix equation obtained by assembling the finite element equations of each substructure is transformed to the state-space matrix-vector equation, and the associated eigen value problem is solved by using the restarted Arnoldi iteration method. The validity of this research is verified by comparing the numerical results of the natural frequencies with the experimental ones. Also the effect of supporting structures to the natural modes of the total HDD system is rigorously analyzed.

Finite Element Modal Analysis of a Spinning Flexible Disk-Spindle System Supported by Hydro Dynamic Bearings and Flexible Supporting Structures In a HDD (유연한 지지 구조와 유체 동압 베어링으로 지지되는 HDD의 회전 유연 디스크-스핀들 시스템에 대한 유한 요소 고유 진동 해석)

  • 한재혁;장건희
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2003.11a
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    • pp.572-578
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    • 2003
  • The free vibration of a spinning flexible disk-spindle system supported by hydro dynamic bearings in a HDD is analyzed by FEM. The spinning flexible disk is described using Kirchhoff plate theory and von Karman non-linear strain, and its rigid body motion is also considered. It is discretized by annular sector element. The rotating spindle which includes the clamp, hub, permanent magnet and yoke, is modeled by Timoshenko beam including the gyroscopic effect. The flexible supporting structure with a complex shape which includes stator core, housing, base plate, sleeve and thrust pad is modeled by using a 4-node tetrahedron element with rotational degrees of freedom to satisfy the geometric compatibility. The dynamic coefficients of HDB are calculated from the HDB analysis program, which solves the perturbed Raynolds equation using FEM. Introducing the virtual nodes and the rigid link constraints defined in the center of HDB, beam elements of the shaft are connected to the solid elements of the sleeve and thrust pad through the spring and damper element. The global matrix equation obtained by assembling the finite element equations of each substructure is transformed to the state-space matrix-vector equation, and the associated eigenvalue problem is solved by using the restarted Arnoldi iteration method. The validity of this research is verified by comparing the numerical results of the natural frequencies with the experimental ones. Also the effect of supporting structures to the natural modes of the total HDD system is rigorously analyzed.

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Emergence of New Towns and Changes in Commuting patterns of Seoul Residents (수도권 신도시 건설과 서울 거주자의 통근통행패턴 변화)

  • Kim, Hyun-Woo;Kim, Ho-Yeon
    • Journal of the Economic Geographical Society of Korea
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    • v.14 no.3
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    • pp.437-451
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    • 2011
  • The purpose of this study is to identify the factors that influence commuting patterns of Seoul residents after the construction of new towns. To find the determinants of commuting time for residents with jobs in Seoul, a multiple regression analysis is performed using household survey data. Overall, the findings present a plausible picture of the spatial configuration in Seoul, where younger residents with growing families move out to the suburbs to become owners of apartment homes, and drive or use mass transportation to get to work. As they get older and wealthier, other things being equal, they gravitate towards the city centre in order to reduce the time wasted on commuting. While their occupations appear to play little role, it seems that the entrapment hypothesis on female workers is supported as well. In addition, excess commuting is still prevalent due to jobs-housing mismatch in Seoul, although it is less severe than in the past. Based on these results, planners should devise better strategies to solve the inefficient commuting problem.

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Actual Proof Study on the Participated Design Stands & Improvement Direction of Village Creation supported by local government - Case study of Cheonranam-do & Haenam-gun in South Korea - (지방자치단체의 주민참여형 마을만들기 사업추진 현황 및 개선방향에 관한 실증 연구 - 전라남도 및 해남군의 관련사업 사례를 중심으로 -)

  • Yoo, Chang-Geun;Park, Sung-Jin;Song, Tae-Gab
    • Journal of the Korean housing association
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    • v.21 no.1
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    • pp.131-139
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    • 2010
  • This study aims to examine the type of residents' participation in village making including the case of "Making Happiness Village" -in the Jeollanam-do province and "Village Making" -in Haenam-gun. The study examines the potential and effects of these projects, draws conclusions and suggests the future direction of village making projects. The results of this study are summarized below. "Making Happiness Village" should be evaluated in detail as it has contributed to the successful and development of traditional Korean residential culture, and has helped to activate and develop agricultural and fishing villages through the improvement of the residential environment and attraction of urban people into the rural area. It also showed the possibility of a project to be settled as a representative of Namdo satisfying the demand for sustainable development. In order to enhance the integrity of a village making project, its master plan must be established and utilized by considering the current status and characteristics of a village, improving its physical environment and seeking a method for economic activation. Policy and economic support from central government and local governments are also required for such a project. The residents' autonomous organization,necessary for unifying the residents' capacity, must organize their own group, such as "Residents' Conference for Village Making (tentative name)" to integrate the existing organizations (women's association, youth group, etc) and establish a conference system to discuss and solve the current issues of the village.