• Title/Summary/Keyword: Floor Area Ratio

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An Analysis of the Policy Effect on the Change of Application Standard of Floor Area Ratio for Land Covering Two or More Zoning Area - Focused on Gangnam-gu - (둘 이상의 용도지역 등에 걸치는 대지에 대한 용적률 적용기준 변경의 정책적 효과분석 - 강남구를 중심으로 -)

  • Yu, Myeong-Han;Lee, Chang-Moo
    • Journal of Cadastre & Land InformatiX
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    • v.48 no.2
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    • pp.121-135
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    • 2018
  • The ministry of land, Infrastructure and transport has revised the "National Land Planning and Utilization Act" in 2012. As a result, the regulation of floor area ratio for land covering two or more zoning area has been changed. This study conducted an analysis of the policy effects of changes in the criteria for the application of the floor area ratio by revising the "National Land Planning and Utilization Act". Land covering two or more zoning area means a street side commercial area and street side residential area that is generally understood. This study analyzed the policy effects in Gangnam-gu which has relatively large areas of street side commercial area and street side residential area. The 468 office building transaction cases were analyzed in Gangnam-gu from 2007 to 2017. The result shows that the office building, which has received incentive for policy changes, reported a 19.08% rise in price compared to the one that did not. It means that the economic effects of change of application standard were significant. The existing policy also served as a restriction on land use by landowners, which in turn contributed to the devaluation of the asset's intrinsic value. Therefore, this study may have contributed to the rational use of land and to provide an empirical basis for the change in policy to be assessed for its intrinsic value.

A Study on the Location and Area Composition of the Operation Department in Regional Public Hospitals - Focused on Net Floor Area (지방의료원 수술부 배치 및 규모에 관한 연구 - 순면적을 중심으로)

  • Yun, Woo Yong;Chai, Choul Gyun
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.25 no.4
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    • pp.93-104
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    • 2019
  • Purpose: To establish the building guidelines and to analyze the function of Regional Public Hospitals, the survey was conducted primarily on the current status focusing on the location and relationship of the department, area composition ratio, area per bed, and area per operating room. Methods: The research methods of this paper are as follows. 1) A literature survey on the function of the operating and related departments, 2) A drawing analysis for spatial composition and net area calculation. Results: The area of the Operation Department in the Regional Public Hospitals with 200 to 300 beds are as follows. Area ratio: 3.35%, area per Bed: 2.53㎡/bed, the number of beds per operating room: 64.37bed, area per operating room: 146.46㎡/n, area per operating room by plan type: integration corridor 133.84㎡/n, separation corridor 184.82㎡/n. Implications: This paper analyzed data on the current state of Operation Departments for setting up the function and role for the Regional Public Hospital. In the future, it is also required to provide size that takes into account user behavior and the user's psychological aspect in order to suggest appropriate area.

Evaluation of the Outdoor Radiant Thermal Environment by Building Scale and Block Type of Office Building in Summer (사무소건물의 규모 및 배치유형에 따른 하기 옥외 복사열환경 평가)

  • Park, Su-Jin;Jung, Sun-Young;Yoon, Seong-Hwan
    • Journal of the Korean Solar Energy Society
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    • v.29 no.6
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    • pp.81-87
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    • 2009
  • The purpose of this study is to evaluate of the outdoor thermal environment by building scale and block type as variable factors. In this study, 18 cases of office in central business district that have different condition are compared about their surface temperature, HIP(Heat Island Potential), and MRT(Mean Radiant Temperature). They are simulated with 3-dimension numerical simulation software named Hoyano-model. The output results contain visualized distribution chart and numerical data. The results of evaluation are as follows. (1)The surface temperature of the building becomes higher as building coverage ratio is higher but floor area ratio is lower. In same conditions, unified block type is maximum $3.2^{\circ}C$ higher than divided block type. (2)HIP shows different daily pattern as block type. During daytime, divided block type is much higher than unified block type but after sunset, it is changed. (3)MRT shows different distribution pattern as sunlight moves expecially at noon. (4)As the results of this study, cases that have high floor area ratio condition show lower surface temperature by tendency to stay low indoor temperature in office building and big rate of windows on building surface.

A Survey of Residential District Decay of A New Development Area - In the case of Dunsan of Daejeon City - (신개발지 일반주거지역의 용도쇠퇴 현황 및 특성에 관한 연구 - 대전 둔산 신시가지를 중심으로 -)

  • Lee, Seung-Mi;Kang, In-Ho
    • Journal of the Korean housing association
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    • v.20 no.2
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    • pp.109-118
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    • 2009
  • In general, the decay of the residential district has been considered a phenomenon of old towns. But now it has become a problem of new development areas too, which have been a cause of the decay of old town. This study aims to investigate the decay of the residential district in the new development area. The survey site was Dunsan, a town-intown of Daejeon metropolitan city. The findings were as follows (:) 1) even in the new development area, a high level of vacancy ratio was evident. ; 2) among the buildings above ground, 1st floor showed the highest vacancy ratio, which means the 1st floor was allotted to too many commercial facilities relative to the buying power size in this district. ; 3) there were many conversions in response to the decay of the district, from residential to commercial, and commercial to residential. ; and 4) the allocation of each type of conversion showed a spatial pattern.

The verification about possibility of introducing Window to Floor Ratio as design index for building energy performance

  • Choi, Won-Ki;Lee, Yong-Jun;Lee, Hyun-Soo;Eom, Jae-Yong;Lee, Chung-Kook
    • KIEAE Journal
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    • v.17 no.1
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    • pp.23-28
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    • 2017
  • Purpose: Many design index that are using in planning phase have been developed. The most popular things among them are Window to Wall Ratio and Surface to Volume Ratio. However there are some limits. Window to Wall Ratio cannot consider building size and Surface to Volume Ratio cannot do Window to Wall Ratio. Accordingly, in this paper, the Window to Floor Ratio was proposed that it can be considered both building size and Window to Wall Ratio. And analyzed correlation of energy demand. Method: For the test, 16 modules with the size of $6m{\times}6m{\times}4m$ were used to make 35 models with the same volume. The simulation was conducted to 945 cases using the window-to-wall ratio of 30, 50 and 70 % in three areas such as Seoul, Gwangju and Jeju and three kinds of windows. And IES_VE was used. Result: The findings above show that the Window to Floor Ratio that can be considered both building size and Window area have to become as design index. It was found out that design criteria with SHGC is necessary, not with the thermal performance (U-value). It is needed to additional analysis about residential building and the effect of 24-hours heating and cooling condition. It plans to carry out research to establish design indicators for climatic conditions in the country and building applications.

A Study on the Change of Paradigm and Analysis of Qualitative Space in Public Space - Focused on the Entrance Floor in General Hospital over 500 beds in Korea - (공용 공간의 패러다임 변화와 질적 공간 분석 - 500병상 이상 국내 종합병원 진입층을 중심으로 -)

  • Son, Ji-Hye;Yang, Nae-Won
    • Korean Institute of Interior Design Journal
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    • v.23 no.6
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    • pp.212-220
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    • 2014
  • Entrance floor in hospital has became important space for medical service in holistic perspective and image enhancement. However, basically a discussion of the qualitative properties and the role of public space is paucity in change of public spaces paradigm. In accordance with this problem, this study consider the change of paradigm in public space based on earlier studies and create classification criterion of space. According to the criterion, G/D ratio and the qualitative spatial area ratio of 26 general hospitals which were planned over 500 beds are analyzed by case study method. The conclusion of this study is as follows. 1) The space according to the medical function is variable element. So the public space should be planned from function-subordinate space to self-reliance space in the future. 2) There is no correlation between the high G/D ratio and the high ratio of qualitative spacial area. In other word It's hard to say that the public space which G/D ratio is high is qualitative space. 3) Since 2000, various types in accordance with the circulation system is applied to public space. And ratio of qualitative spacial area is relatively high in the street type and the concourse type. 4) The qualitative spatial area ratio of stay space is higher than passage's one.

Assessment of Daylight Environment on Light Pipe System Under Different Solar Position (태양의 위치에 따른 광파이프 시스템의 실내 주광환경평가)

  • Shin, Hwa-Young;Kim, Jeong-Tai
    • Journal of the Korean Solar Energy Society
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    • v.28 no.6
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    • pp.78-86
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    • 2008
  • The aim of this paper is to show the daylight environment of a light pipe system according to sun movement. A light pipe system has been mounted on the roof of the windowless full scale model: the solar spot has diameter of 0.65m and is 1.3m long, giving an aspect ratio of 1:2. The full scale model was installed on the rooftop of the SHINAN apartment in Yongin city that has no obstructions against sunlight. The test room is equipped with sensors for the measurements of the internal illuminance and has an area of 6m(W)$\times$6m(D)$\times$4m(H). The system has been monitored with a data-logger to evaluate the cumulative distribution of illuminance on a floor-plane from 16th, April to 29th, May, 2008 over one month and selected clear sky condition. For the daylight performance of floor area, the totally 49 measuring points has been used to determine the internal illuminance and an HP datalogger(HP34970A) records the measurements for one consecutive month. The horizontal external illuminance has been measured with two outdoor sensors. This paper presents the results of monitoring light pipe system with internal/external illuminance ratio and cumulative frequency distribution of floor-plane illuminance are discussed The results show that lightpipe is proficient device for introducing daylight into the building. However It provided different daylight indoor environment with wide or narrow Interquatile range of illuminance, internal/external illuminance ratio and cumulative frequency distribution according to solar positions under suuny sky condition. For more achieving the improvement of lightpipes also include energy savings, user visual comfort with various indicators; seasonal solar height, room and lightpipes geometries.

Study on the Spatial Standard for Reading Rooms in University Libraries (대학도서관 열람실 공간기준에 관한 연구)

  • Lim, Ho-Kyun
    • Korean Institute of Interior Design Journal
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    • v.25 no.5
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    • pp.140-147
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    • 2016
  • This research aims to establish the size standard of university library's user space, and present the standard and method to calculate total area required in the planning of new building construction and remodeling. Nine university libraries newly constructed or remodeled since 2000 were selected among the libraries of large scale universities with more than 10,000 enrolled students as the target libraries in this research. The target libraries were classified into A group (five cases partially remodeled) and B group (four cases newly constructed or fully remodeled) on the basis of the change of times. A university library can be divided into three spaces (user space, administration space and public space). This research classified the reading room in the user space into bookshelf zone, reading zone, information/office zone and hall/other zone, and analyzed area ratio according to each zone. B group's bookshelf zone decreased 12% more than A group, and B group's reading zone increased 10% more than A group. However, there was no big change in the area ratio of information/office zone and hall/other zone. This can be interpreted that university library changes from book and archive preservation-oriented space to user-oriented space. This research presented a proper reading room area calculation method, based on the capacity of books, by reflecting such a change. Each zone's standard was set up through classification of domestic and international standards, based on which, the calculation method of university library's total floor area required was presented. The reason why there was difference in university library's total floor area required according to domestic standard and international standard was that the number of enrolled students per seat in the reading room was different. The area calculation methods presented in this research can be utilized as useful data upon planning university library construction or remodeling.

Effect of the Combination of Point Loads on the Design Flexural Capacity for Fiber Reinforced Concrete Floor Slab (집중하중 조합에 의한 섬유 보강 콘크리트 바닥슬래브의 설계 휨 내력)

  • Lee, Jong-Han;Cho, Baik-Soon;Kim, Jung-Sik;Cho, Bum-Gu;Ki, Han-Sik
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.4 no.1
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    • pp.47-54
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    • 2016
  • In this study, the flexural capacity of fiber reinforced concrete floor slabs were evaluated using main design loads, racking and moving loads. Based on design standards and guidelines, the magnitude and loaded area of each load were determined, and its relationship was assessed. For the application of a single load, flexural capacity should be evaluated in the edge of a floor slab. In addition, the slab with thickness and concrete strength, greater than 180mm and 35MPa, respectively, sufficiently satisfied flexural capacity with a minimum of equivalent flexural strength ratio. The combination of racking loads required the largest equivalent flexural strength ratio to satisfy the flexural capacity of the floor slab. The combination of racking and moving loads showed equivalent flexural strength ratio smaller than the case of combination of racking loads, but larger than the application of single racking or moving loads. The results of this study indicated that the flexure of fiber reinforced concrete floor slabs should be designed using the combination of design loads.

A Study on the Space Zoning and Area Composition of the Operation Department in Regional Public Hospitals - Focused on Net Floor Area (지방의료원 수술부 영역 및 면적 구성에 관한 조사·분석연구 - 순면적을 중심으로)

  • Yun, Woo Yong;Chai, Choul Gyun
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.25 no.3
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    • pp.25-36
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    • 2019
  • Purpose: To establish guidelines for local public hospitals, the survey was conducted primarily on the current status of local public hospitals, focusing on the zone configuration and the spatial area of the operating department. Methods: 3 Methods have been used in this paper. 1) Analyzing drawings to derive the net floor area of each room. 2) A literature survey about composition of the zone by infection control. 3) Observation survey for user circulation analysis. Results: The operation department consists of the major, secondary, support and connected zones according to the user's actions. The spatial area composition ratio for each zone is major zone: 41.79%, secondary zone: 10.87%, support zone: 23.10%, and connected zone: 24.24%. Implications: This study is a basic research for guideline for the operation department in local public hospitals. In this study, zones configuration of the operation departments are classified in terms of user actions and room functions. In the future, it is required to establish criteria considering infection control and copper connection aspects.