• Journal of the Korea institute for structural maintenance and inspection
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• v.24 no.4
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• pp.10-17
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• 2020

The recent earthquake in Korea caused large and small damages to many school building. School building is an important building that is used as a shelter in the event of disaster. Among the seismic retrofit methods, the internal steel braced frame type method is used for its relatively easy construction and excellent performance. In this study, the maximum shear force and displacement were compared and examined by applying the brace frame to existing concrete school buildings. As a result, we verified the adequacy of the analytical model and compared and examined the effect of brace-height ratio on the span of the existing school buildings. The adequacy of the maximum shear force and displacement relationship can be confirmed in the model with a length of 0.3. In addition, seismic frame was applied to the actual non-seismic reinforced concrete school building, and the seismic performance was evaluated by nonlinear static analysis(Push-over analysis) according to the ratio of brace-height. As a result, the increase of the brace-height according to the brace-height ratio has the effect of increasing the maximum shear force and maximum load at the performance point. But the collapse of the braced frame due to the increase in the lateral stiffness occurred, indicating that seismic retrofit according to the proper brace-height is necessary. Therefore, in the seismic retrofit design of brace frame of existing school building, it is necessary to select the proper brace-height after retrofit analysis according to the brace-height ratio.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.6
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• pp.2779-2788
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• 2012

The housing market is now difficult because of excess of the increase rate of housing and long-term recession but high-rise mixed-use buildings can mix residential facilities with various demand facilities focusing and they have the advantages to secure open space and excellent view by high-rise apartment. But there are problems by hindrance of skyline formation and height of buildings. Therefore, the purpose of this study is to suggest the height standard and the slenderness ratio to location types of Mixed-use Residential Tall buildings. For the method of the study, term arrangement through literature search and the precedent research survey were first done, the level of urban design and the details related to the height of buildings were done as the case research focusing on the 16 cases in Seoul. The following results were drawn by suggesting the height standard and the slenderness ratio by location type based on them. First, the height of mixed-use building by location type in the level of urban design gets higher starting from the secondary center of the city and can be suggested as from less than 150m to more than 200m. Second, the slenderness ratio shall be planned as more than 1:3 because the area of the ground level of mixed-use building is large unlike Mixed-use Residential Tall buildings and visual passage shall be placed so that unity of openness and group formation will be planned. Third, for the height related to Mixed-use Residential Tall buildings, amendment of the special architectural district system and the special law related to super high-rise buildings shall be enacted.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.2
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• pp.970-978
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• 2011

The high-rise buildings have been indiscriminately located in the good natural landscape in Busan. They destroy the mountain skyline that is the key role of urban landscape and lower the index of greenness. Busan need the efficient management methods of the mountain skyline to improve the quality of urban life, the amenity of urban landscape, and the index of greenness. This study is to propose the method of building height restriction both through the GIS bases multiple sight surface analysis and through the analysis of the floor area ratio to make up for the weakness of single sight surface analysis has been used as a means of building height restriction. It studies the residential district with Hwangreung Mountain in the background at Deeyeon-don, Nam-gu, Busan. It achieves both objectivity and time efficiency by multiple sight surface analysis. Reflecting the result of this simulation at strategic viewpoints, it enables landscape planning to be comprehensive. Lastly it suggests building height regulation for protecting the mountain skyline which responds to the local conditions.

• Journal of the Korean Association of Geographic Information Studies
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• v.12 no.3
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• pp.35-44
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• 2009

In this study, we intended to develope a simulation program for assessing a building height whether or not acceptable for maintaining the visual quality of a forest landscape. A number of geographical factors were considered within the assessment procedure. As the visual quality of a landscape could vary according to the location of view points, we examined 3 methodologies for setting up the view points. The result for comparison between method of selecting viewpoints was not significantly effecting method of selecting viewpoints. Post hoc test showed a moderately large p-value and no significant differences between groups were observed. The result from a case study indicated that the simulation program is able to estimate an environmentally acceptable building height in an efficient manner. In this study, however, only the geographical factors were considered for the assessment, but forest dynamic information such as stand height was not considered. Thus, in the further study, forest stand height would be necessarily considered to estimate a more reliable and desirable building height.

• Journal of the Korean Professional Engineers Association
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• v.37 no.2
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• pp.37-41
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• 2004

왜 이렇게 높이 지어야 하는가？ 그 가장 큰 목적은 초고층 건축물의 건축을 통해 세계와 경쟁하고, 인간의 능력, 즉 현시점의 건축기술 한계에 대한 도전이자 경제, 문화수준의 발산일 것이다. 그런 관점에서 아무도 세계에서 제일 높은 건축물을 대만에 지으리라 생각하지 않았을 것이다.(중략)

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2010.04a
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• pp.149-154
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• 2010

건축기술의 눈부신 발전과 경제적 가치추구 등에 따른 국가 사회적 수요로 인하여 초고층 건축물의 건설물량은 이들 건축물에 대한 효과적인 피난안전대책을 정립하기도 전에 급속히 증가하는 추세이다. 우리나라는 2009년 7월 16일 재정된 건축법 시행령을 통하여 층수가 50층 이상이거나 높이가 200미터 이상인 건축물을 '초고층 건축물'로 규정하고, 이러한 건축물의 피난안전을 위하여 지상층으로부터 최대 30개 층마다 설치하는 대피공간을 '피난안전구역'으로 정의하였다. 이후 2010년 2월 18일 개정령에서는 초고층 건축물의 피난안전구역을 건축물의 '피난층'으로 인정하기에 이르렀다. 그러나 피난대상인원 등에 따른 대피공간의 면적이나 구조 등 내부시설에 대한 설치기준이 없어 피난안전구역으로서의 충분한 신뢰성을 확보하지 못하고 있어 이에 대한 심층적 연구와 기준의 개선이 필요한 실정이다.

• Journal of the Korean Institute of Landscape Architecture
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• v.39 no.5
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• pp.48-56
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• 2011

The objective of this study is to develop quantitative criteria for setting reasonable standards and regulations for building heights in collective facility districts inside national parks or those connected to their borders. Heights of all building sin collective facility districts were simulated in order to determine heights of ridge lines of sight passing the upper parts of buildings from a main view point. Where a facility's zone is located at the inside or boundary of inland mountainous national parks, and there are coastal type national parks with mountains in the background, the study recommended assigning the maximum allowable height of a building as 8.82m if national park authorities intend to preserve the ridges at three-tenths the height of a mountain. It amounts to 3 or 3.5 stories when it is converted into the number of floors. It is desirable to apply this standard to accommodations like a hotel except lodge or cottage as the maximum allowable height of a building. Nevertheless, when there aren't back mountainous areas among coastal-type national parks, there is a need for applying a separate standard. If an equal and uniform standard is applied to all collective facility districts, it becomes difficult to address local differences when managing landscape. There must be flexibility when applying a standard, depending on variables such as location of view points, differences in the methods of selection of view points, and differences in view angles, etc. Thus, there is a need for different landscape management strategies that address the unique natural environment of different zones.

• 월간 기계설비
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• no.3 s.188
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• pp.34-35
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• 2006

건축법 중 건축물의 설비기준등에 관한 규칙의 일부가 지난 2월 13일 개정, 공포되었다. 이번에 개정된 주요 내용은 그동안 공동주택 및 다중이용시설의 환기설비기준이 없어 적정수준의 실내의 공기 질을 확보하지 못하여 국민건강을 해치는 등의 문제점을 개선하여 △공동주택의 필요환기 횟수를 시간당 시간당 0.7회 이상이 되도록 하고 다중이용시설 중 지하 역사의 경우 필요 환기량을 1인 기준으로 시간당 25㎡ 이상이 되도록 하는 등 건축물의 용도에 따라 환기설비기준을 정함으로써 공동주택 및 다중이용시설의 실내의 공기 질 개선을 통해 국민의 건강 증진에 기여할 것으로 기대된다. 또한 △피뢰설비의 설치기준을 강화하여 건축물의 높이가 60m 이상인 고층 건축물은 측면에 낙뢰방지시설을 설치하도록 개정함으로써 고층 건축물의 벼락 피해를 예방할 수 있을 것으로 기대된다. 본지는 건축물의 설비기준등에 관한 규칙 중 신∙구조문 대비표를 게재하오니 회원사 여러분의 많은 참고를 바란다.

• Journal of the Korean Association of Geographic Information Studies
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• v.20 no.2
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• pp.32-46
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• 2017

Recent rapid urban expansion and crowding of various industrial facilities has affected the features of a significant part of downtown area, resulting in areas having buildings with a wide range of height and the foothills. To compute a velocity pressure exposure coefficient, namely the design wind speed factor, this study defines ground surface roughness by utilizing concentration analysis for the height of each building. After obtaining spatial data by extracting a building layer from digital maps, the study area was partitioned for the concentration analysis and to allow investigation of the frequency distribution of building heights. Concentration analysis by building height was determined with the Variation-to-Means Ratio (VMR) and Poisson distribution analysis using a buildings distribution chart, with statistical significance determined using Chi-square verification. Applying geographic information systems (GIS) with the architectural information made it possible to estimate a velocity pressure exposure coefficient factor more quantitatively and objectively, by including geographic features, as compared to current methods. Thus, this method is expected to eliminate inaccuracies that arise when building designers calculate the velocity pressure exposure coefficient in subjective way, and to help increase the wind resistance of buildings in a more logical and cost-effective way.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.11a
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• pp.59-60
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• 2013

본 연구는 고층 건축물의 외장재로 많이 사용되고 있는 커튼월에서의 화재확산을 방지하기 위한 방안으로 건축물의 기존 외장재와 설비들을 이용한 성능설계 적용 기법을 활용하기 위한 기초 연구로써 실험적 연구를 수행하였다. 이를 위해서가로 1.2 m, 세로(높이) 2.6 m 두 개의 유리가 붙어 있는 커튼월을 사용하였으며 한쪽의 유리에만 스프링클러를 설치하고, 커튼월 앞에 1m 지름의 헵탄의 화원을 사용하여 실험을 수행하였다. 스프링클러 설치 유무에 따라 커튼월의 유리의 파손으로 인한 화재 전파 방지에 효과가 있는 것을 확인하였다.