• Title/Summary/Keyword: 지붕

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A study on the static seimic loads for the space structures of beam string structure (장현보구조형식을 가지는 공간구조물의 정적지진하중 평가법에 관한 연구)

  • Kim, Kwang-Il;Jung, Chan-Woo;Kang, Joo-Won
    • Proceeding of KASS Symposium
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    • 2008.05a
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    • pp.127-132
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    • 2008
  • Recent years, the response characteristics of large space structures have been studied. Then, for the large space structures with large rise-span ratio, it is clarified that the anti-symmetric mode are representatively amplified. That means the static seismic load for general ramen structure is not suitable for the space structure. In this paper, we propose static seismic loads for space structures and its concept. And for the space structures of beam string structures, execute the time history analysis and quasi static analysis and compare the results of them. From the results, we can prove the validity of static seismic load for space structure.

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The Study for the Long-Term Rainwater Storage Quality Effect after Chlorination (염소 소독에 의한 저장빗물수질 유지효과 연구)

  • Park, Heesoo;Kim, Sungpyo
    • Journal of Wetlands Research
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    • v.16 no.1
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    • pp.33-39
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    • 2014
  • The purpose of this study is to monitor the rainwater flowing from the roof of buildings and to maximize the effectiveness of the rainwater storage. This study also analyses the changes in rainwater characteristics before and after subsequent chlorination disinfection. The stored rainwater was disinfected by chlorine and then analyzed for COD, TN, TP, enteric bacteria, and general microbial population changes over time. There was an observed 99% reduction of enteric bacteria and common microbes within two weeks after chlorine injection. Thus, chlorine disinfection of rainwater improves water quality for long-term storage and future use.

Application of Mid-Story Isolation System for Reducing Seismic Response of Space Structure (공간구조물의 지진응답 저감을 위한 중간면진장치의 적용)

  • Kim, Gee-Cheol;Kang, Joo-Won;Kim, Hyung-Man
    • Journal of Korean Association for Spatial Structures
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    • v.9 no.4
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    • pp.97-103
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    • 2009
  • The seismic isolation system reduces the seismic vibration that is transmitted from foundation to upper structure. This seismic isolation system can be classified into base isolation and mid-story isolation by the installation location. In this study, the seismic behavior of arch structure with mid-story isolation is analyzed to verify the effect of seismic isolation. Mid-story isolation is more effective than base isolation to reduce the seismic responses of roof structure. Also, this isolation would be excellent in structural characteristics and construction.

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The Basic Study for the Roof-Harvested Rainwater Quality Characteristics as a Function of Rainfall Duration (강우지속시간에 따른 건물지붕빗물의 성상특성변화에 대한 기초 연구)

  • Kim, Sung-Pyo;Kim, Doo-Cheol;Oh, Jun-Sik;Kim, Lee-Hyung;Min, Kyung-Suk
    • Journal of Wetlands Research
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    • v.14 no.1
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    • pp.11-20
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    • 2012
  • The aim of this study is to accumulate the data about the roof-harvested rainwater quality characteristics for the better rainwater management. According to the results of rainwater quality indicators (pH, COD, TSS, T-N, T-P, $NH_4$-N, $NO_3$-N, enteric bacteria, heterotrophs, Pb, Cd, Cu), the rainwater qualities of the first flush of roof-harvested was the most polluted about 2 or 3 times (more than 100 times in microbial contamination) compared to the qualities of directly collected rainwater. In the first 10 min flush, over the 60% amounts of contaminant were released from the roof during 30 minute rainwater monitoring. Through statistical factor analysis, relatively close items(variables) can be categorized. It is expected that the continuous monitoring of the roof-harvested rainwater will help to design the safe and economical rainwater storage system in Korea.

A Study on the Evaluation of Watertightness Properties for Rain-Block System in the Sliding-Roof Joint of Large-Span Membrane Structures (개폐식 대공간 막 구조물에서 지붕 맞댐부 우수차단 시스템의 수밀성 평가에 관한 연구)

  • Oh, Sang-Keun;Baek, Ki-Youl;Lee, Sun-Gyu
    • Journal of the Korea Institute of Building Construction
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    • v.10 no.3
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    • pp.129-136
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    • 2010
  • This study is an evaluation of the water-tightness properties of rain-block systems in the sliding-roof joint of large-span membrane structures. In this study, we suggested a method of evaluating the water-tightness performance of the joint part of a sliding door in the roof of a large-span membrane structure (for a pilot project), in an environment of rain and wind. The shape of the rainwater blocking systems of the joint part in a sliding door verifies the defects and the effects of water leakage prevention when there is precipitation with wind conditions. To secure the water-tightness of large span membrane structures, it is necessary to have a guideline on the evaluation of the design for rain-block system of the joint part, and the quality of the membrane material, both of a retractable roof and a closed roof.

A Study of Architectural and Design Elements of Secondary Shirines in Traditional Buddhist Temples in Korea (한국 전통사찰에 있어서 부불전의 건축요소와 의장적 특성에 관한 연구)

  • Cho, Jeong-Sik
    • Journal of the Korean Institute of Landscape Architecture
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    • v.38 no.5
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    • pp.102-112
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    • 2010
  • The purpose of this study is to identify the architectural design elements of secondary shrines in traditional Buddhist temples in Korea. For this study, a survey of six kinds of secondary shrines (Myemgbujem, Yeongsanjeon, Eungjinjem, Yaksajeoun, Gwaneumjeon, Mireukjeon), according to specified design elements(building sizes, roof styles, Gongpo, Dancheong, shape of Datjip), was conducted. The results of this study are summarized as follows; Myeongbujem is built in every temples(25 examples), most having simila1ities in sizes and architectural elements(roof, Gongpo structure, Dancheong, Datjip). The majority of Yemgsanjeon(l4 examples) and Eungjinjem shrines(l5 examples) are mostly 3-Gan sized buildings, having a Matbaejibung and Ikkmg structural system. Gwaneumjeon, on the other hands, has 1he most elaborate architectural elements. Among 12 cases, 8 buildings have Paljakjibung, 9 buildings have Silk-Dancheong in innerspace, and Datjip are included in six buildings. Yaksajeon shrines are small in mnnber, but most of these shrines have a Dapo structure, and, despite of their size, are designated as cultural properties.

A Study on the Design & Construction Method of Traditional Landscape Space through the 『Imwongyeongjeji』 「Seomyongji」 and the 'Standard Specification for Repairing Cultural Heritages' (『임원경제지』 「섬용지」와 문화재수리 표준시방서를 통해 본 전통조경공간 설계 시공방법)

  • Lee, Jung-Han
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.37 no.4
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    • pp.1-10
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    • 2019
  • The purpose of this study is to examine the design & construction methods of the traditional landscape space of the past and the repair and maintenance of cultural heritages to maintain it today. To this end, the method of narrative description, process extraction and construction related to traditional landscaping were compared to each other based on the 『Imwongyeongjeji』 「Seomyongji」 and 'Standard Specification for Repairing Cultural Heritages'. The results are as follows; First, to analyze at the description methods of the 『Imwongyeongjeji』 「Seomyongji」 and 'Standard Specification for Repairing Cultural Heritages' and related processes in the field of traditional landscaping. 『Imwongyeongjeji』 「Seomyongji」 was an encyclopedia of the overall construction method of the living space, describing the location, effect, and advantages and disadvantages of each component and presenting quantitative figures to institutionalize the construction of traditional landscaping spaces. 'Standard Specification for Repairing Cultural Heritages' presented the entire process of repairing cultural heritages, and it is becoming a kind of guide for reference at the site. Among them, foundation construction, roof construction, landscape construction, and fence construction were drawn as items that could be applied to traditional landscaping areas. Second, the traditional landscape space construction method was divided into the processes of foundation construction, roof construction, landscaping construction, and fence construction. Foundation construction is a way of repeating the process of land-tramping. During the construction of the roof, the tile-roofed building was built on top of the rafters and roofed with tiles. And thatched roof was made to a number of rice straws bundles to cover the roof one after the other. Instead of tiles, the stone roof was made of thin and wide stones, and the wooden boards were used for the single roof and the bark roof were constructed with many layers of dried corrugations. Landscape construction mainly consists of the Paving technique through tramping rubble and the construction of terraced flower by planting stone, plants, and shrubs on the top. According to the building materials, the wall construction was derived from the earth-stacked earthen wall, stone walls using stone and clay, marble walls made of tile patterns, and the construction of a board wall using a wood board as a wall. Third, comparing the construction methods of the 『Imwongyeongjeji』 「Seomyongji」 and 'Standard Specification for Repairing Cultural Heritages', 『Imwongyeongjeji』 「Seomyongji」 focuses on standardizing the construction methods to create a new traditional space. There is a difference in the setting of the scope of the 『Imwongyeongjeji』 「Seomyongji」 and the construction because 'Standard Specification for Repairing Cultural Heritages' provides the overall construction procedure considering the diversity of the cultural heritages. In addition, the traditional landscape space used to be a residential space in the past, but today, the maintenance process of the already established facilities as designated cultural heritages has been carried out, and construction methods have been added to create viewing conditions. In terms of the succession of traditional knowledge, some similar methods were found in the repair of cultural assets today, and some cases were also confirmed in the reconstruction of traditional technologies such as application of some materials or mix, separation of added facilities and introduction of efficient construction methods.

Characteristics of Residential Buildings designated as Korean National Treasures (보물로 지정된 주택의 특성에 관한 연구)

  • An, Ok-Hee;Park, Jin-Ho
    • Korean Journal of Human Ecology
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    • v.13 no.5
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    • pp.821-831
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    • 2004
  • 한국의 전통문화를 보존, 전승시키는데 도움을 주는 자료를 얻기 위하여 보물로 지정된 주택의 특성을 파악하는데, 본 연구의 목적이 있다. 연구내용은 전국에 보물로 지정된 11개 주택에 대하여 건립연대, 소재지, 외관특성(기단, 기둥, 지붕의 형태), 평면형태를 분석하는 것이다. 연구결과, 보물로 지정된 11개 주택은 모두 조선시대의 주택으로 경북에 9개(81.8%)가 위치하고 있었다. 외관특성으로 기단은 모두 석축기단이나 단 수는 1단부터 9단으로 다양하며, 기둥은 원주나 방주를 사용하고 있으며, 지붕은 팔작지붕(63.6%)이 많았다. 보물로 지정된 주택은 7개가 별당형식으로 지어진 사랑채이며, 4개는 사랑채가 몸체와 연결되어 있거나 아주 인접해 있었다. 사랑채 부분의 평면형태는 -자형이 10개(90.9%)이며, 1개만이 L자형이었다. 공간구성은 방과 대청이 기본적인 구성으로 부엌이 없는 것이 특징이었다.

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Analysis of the Heating and Cooling Energy Load of the KNU Plant Factory with Single Skin Windows (단일창호를 적용한 KNU 식물공장의 냉난방 에너지 부하 해석)

  • Lee, Chan-Kyu;Kim, Woo-Tae
    • Proceedings of the KAIS Fall Conference
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    • 2012.05b
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    • pp.575-578
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    • 2012
  • 단일창호를 적용한 KNU 식물공장 모델의 냉난방 에너지 부하를 DesignBuilder를 이용하여 해석하였다. 상추의 적정생육온도인 $20^{\circ}C$를 기준으로 이중창호를 적용한 경우와 에너지 소모량을 비교 분석하였다. 단일창호가 이중창호에 비해 연간 냉방부하는 약 128 MWh 감소하고 난방부하는 약 26 MWh 증가하여 단일창호가 냉방부하저감에 유리하다고 판단된다. KNU 식물공장의 중앙에 위치한 공간의 상부를 지붕구조물로 닫거나 계절별로 개폐하면서 냉난방부하에 미치는 영향을 계산하였다. 지붕구조물을 설치하게 되면 단위유닛이 취득하는 태양열이 감소하여 냉방부하가 감소하게 된다. 또한 지붕구조물을 상시 닫아두는 것이 계절별로 여닫는 것보다 냉방부하 저감에 유리하다. 식물공장 측면벽에 overhang과 sidefin을 설치하면 차양효과로 냉방부하가 감소하지만 감소비율은 크지 않았다. 에너지 부하의 대부분을 차지하는 냉방부하를 낮추기 위해 구조물이나 차양을 설치할 수 있으나 절감효과에 비해 설치비가 증가할 수 있기 때문에 추가 경제성 연구가 필요하다.

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Structural Design of Angola Stadium (앙골라 주경기장 구조설계)

  • Kim, Jong-Soo;Shin, Chang-Hoon;Kim, Jeong-Hyeon
    • Proceeding of KASS Symposium
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    • 2008.05a
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    • pp.212-217
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    • 2008
  • This paper is concerned with the structural design of Angola Stadium. The Angola stadium is composed of a Steel moment frame system and a Cantilever steel truss roof. Whole structural analysis is necessary to ensure the stability. Considered FEM analysis, Design of Wind load & Seismic, Stand diaphragm, interaction between stand and Roof, Serviceability.

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