Zhang, Xi-Cheng;Xue, Jian-Yang;Zhao, Hong-Tie;Sui, Yan
Structural Engineering and Mechanics
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v.40
no.4
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pp.453-469
/
2011
A one-story, wooden-frame, intermediate-bay model with Dou-Gon designed according to the Building Standards of the Song Dynasty (A.D.960-1279), was tested on a unidirectional shaking table. The main objectives of this experimental study were to investigate the seismic performance of Chinese historic wooden structure under various base input intensities. El Centro wave (N-S), Taft wave and Lanzhou wave were selected as input excitations. 27 seismic geophones were instrumented to measure the real-time displacement, velocity and acceleration respectively. Dynamic characteristics, failure mode and hysteretic energy dissipation performance of the model are analyzed. Test results indicate that the nature period and damping ratio of the model increase with the increasing magnitude of earthquake excitation. The nature period of the model is within 0.5~0.6 s, the damping ratio is 3~4%. The maximum acceleration dynamic magnification factor is less than 1 and decreases as the input seismic power increases. The frictional slippage of Dou-Gon layers (corbel brackets) between beams and plates dissipates a certain amount of seismic energy, and so does the slippage between posts and plinths. The mortise-tenon joint of the timber frame dissipates most of the seismic energy. Therefore, it plays a significant part in shock absorption and isolation.
Journal of the Korean Institute of Rural Architecture
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v.18
no.1
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pp.57-65
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2016
When the castle of the city was destructed from 1911 through 1915 in Cheongju, the city's spatial structure was reorganized and "Han-ok Housing", a dwelling site filled with Korean traditional houses, was newly formed around the former castle site. These days, the Han-ok housing in Seoun-dong, Cheongju in which elderly couples and senior citizens live is enclosed by modernized roads and three or four-story buildings, leaving the housing as an isolated island in the city block. Nonetheless, the Han-ok housing not only plays an important role in sustaining the historic and local identity of the city, but also offers environmental benefits in terms of daylighting and ventilation. The purpose of this study is to reorganize the housing suitable for those who currently live and recreate it by adding new functionality. Consequently, three strategies are established; the conservation of existing building through the improvement of existing facilities; the conversion of vacant buildings into a new use; and the creation of the urban mid-rise Han-ok housing at street sides. The first strategy has a significance in that the traditional building's single wing plan, small room sizes and lack of storages now cause great inconvenience for current life style. The second strategy also promotes the practical use of abandoned buildings through alterations and additions. Finally, the creation of the urban mid-rise Han-ok housing that is accomplished by the combination of reinforced concrete and wooden structure interacts with or respond to the city's development. As a result, this study for the adaptive reuse of Han-ok housing proves how the traditional properties can be maintained in a careful manner and how its creative reuse can be achieved.
This study explored the Jeollajwasuyeong Dongheon in the Late Joseon dynasty and its findings are as follows. Buildings in Jeollajwasuyeong were completed since the mid-18th century. They formed areas based on functions and were largely classified into two areas. The buildings within Yeongseong included Gaeksa (guesthouse), Dongheon(government office), Hyangcheong(advisory organ), Jungyeong(military camp), Guncheong (county office), Gongbang(workroom), and Changgo(warehouse). There were also buildings for low-ranking government officials. The central part of Jeollajwasuyeong was the areas of Gaeksa and Dongheon. Gaeksa was iconic area where local governors served King and had 75 Jinnamgwan Guesthouses and 3 inner gates. Those were measured off by separate walls. The Dongheon area was located in the northeast of Gaeksa. There were three gates such as Wanyeongru, Gongsamun, and Jeongbyeonmun at the entry area, which were also divided by walls like Gaeksa. Unjuheon (Dongheon) was at the center of the area where Gyeolseungdang, Mugwonjae, Naea, Chaekbang, and Gongsu were built. Outside the area, Baekwadang(used as Bijangcheong), Jinhyulgo, and Byeonggo were composed of part of the Dongheon area. Most of the buildings in Dongheon seemed to be repaired since 1664. It was difficult to locate the area of previous Dongheon. In particular, Jinnamgwan was first built in 1599 and destroyed by fire in 1716. In 1718, the building was reconstructed and shared historic denominator with Unjuheon before 1858 and reconstructed Unjuheon in 1869. It was found that Unjuheon was reconstructed more than at least three times, which was the central building in Dongheon. The buildings including Gyeolseungdang, Mugwonjae, and Baekwadang in the area were not existed within Jeollajwasuyeong and were reconstructed more than once and maintained until the early 1900s.
Journal of the Korean Institute of Traditional Landscape Architecture
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v.28
no.2
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pp.118-126
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2010
The purpose of this study is a suggestion which is a way for preservation and management the Jongmyo landscape based on its landscape visibility and land use. To do this, we had done a field investigation and a literature examination. The investigations are as following; we researched current application which for changing the actual condition near the Jongmyo. According to this research site could notice that landscape visibility can be affected by not only the height of building the Jongmyo. The visibility can be affected by photograph's undulation, too. Furthermore, we notice that even some building are located far from the view point and view corridor, it can be a factor which decrease the quality of the landscape visibility. Finally, we can propose how to make way for conservation and management by through restrict land use which based on changing the actual condition, landscape visibility and land use around the cultural assets.
Kim, Min-Ju;Kim, Dong-Uk;Kim, Hyun-Su;Kang, Joo-Won
Journal of Korean Association for Spatial Structures
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v.18
no.4
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pp.81-88
/
2018
Seismic isolation systems have typically been used in the form of base seams in mid-rise and low-rise buildings. In the case of high-rise buildings, it is difficult to apply the base isolation. In this study, the seismic response was analyzed by changing the installation position of the seismic isolation device in 3D high - rise model. To do this, we used 30-story and 40-story 3D buildings as example structures. Historic earthquakes such as Mexico (1985), Northridge (1994) and Rome Frieta (1989) were applied as earthquake loads. The installation position of the isolation device was changed from floor to floor to floor. The maximum deformation of the seismic isolation system was analyzed and the maximum interlaminar strain and maximum absolute acceleration were analyzed by comparing the LB model with seismic isolation device and the Fixed model, which is the base model without seismic isolation device. If an isolation device is installed on the lower layer, it is most effective in response reduction, but since the structure may become unstable, it is effective to apply it to an effective high-level part. Therefore, engineers must consider both structural efficiency and safety when designing a mid-level isolation system for high-rise buildings.
This thesis examines analyzing how historic knowledge was shaped in museum. Examining by Tokyo Imperial Museum, Government General Museum of Taiwan, Yi Wang Ga Museum, Government General Museum of Chosun, and NanTong Museum of late 19th and early 20th century, tried to find out similarities and differences. These museums are similar in that they adopt museums as modern system considering models of other countries(Europe or Japan) and exhibitions played important roles in gathering relics. Experts who leaded adoption of western civilization played an important role. These experts were conservatives who valued tradition and relics while they aimed for western civilization. It originated in the character of museum system. Historical Knowledge by museums was constituted with five combinations of conceptions which are nationality, locality, coloniality, and artistry. Every museum cannot help having modernity for museum itself is modern system. Modernity was symbolized by museum building of western style in Yi Wang Ga Museum, Government General Museum of Chosun. Tokyo Imperial Museum revealed nationality in that it tried building of imperial history which includes colonies. In early time, Tokyo Imperial Museum pursued modernity and artistry, however it concentrated on artistry than modernity later. We can find locality in that Tokyo Imperial Museum tried to find meaning about Japanese art by relating with natural characteristics. It is Taiwan Governor Museum that extremely expressed coloniality and artistry was not considered. Government General Museum of Chosun could not be exceptions of features of coloniality, but it need to recognize that artistry was focused all over the exhibitions. It was NanTong Museum that most directly expressed locality. Like these, Museums of East Asia established in around 1900 made different historical knowledge by varying weigh of five factors, nationality, locality, modernity, coloniality and artistry.
response to the global city. It was developed to cope with the decline of the manufacturing industry, a rise in unemployment and a welfare state system in danger. In cities of the concept, there has been much change in existing urban space and accordingly wisdoms and knowledge has been accumulated. The purpose of this research is to scrutinize urban spatial modification of a regenerated model city "Bologna". The target area of analysis was a ex-factory ailing district. Field site visit, deep interview with professionals and citizens, walk through observation, and historial literature review on the site were employed. As results, its history, retrofit process and current change were systematically described. The results showed ways of thinking, attitude toward historic preservation, technology, and creativity of using existing buildings for contemporary functions. This has a significant implication on Korean urban development which mostly, has ignored the existing value of community and buildings.
This study examines the rural village planning in North Korea after the Liberation of Korea in 1945. For conducting this study, the creation of rural villages in North Korea were investigated according to the following periods: from the Liberation of Korea to the outbreak of the Korean War, from the end of the Korean War to the 1950's, 1960's, 1970's and 1980's. In this study, major rural villages were also examined and common characteristics of rural village-making in North Korea were analyzed. The following are the findings from this study. In rural village planning, historic revolutionary sites and buildings, where revolutionary achievements of Kim, Ill-Sung and Kim, Jung-Ill were reached, are well preserved and actively created. (2) Rural villages are intended to be a place for ideological education, productive activities and cultural refreshment. (2) In rural village-making, inclined planes are utilized, in consideration of climatic and topographic conditions. (4) The construction of residential areas with modern private houses is considered to be important in the making of socialistic and communist rural communities in North Korea. (5) For economic reasons, existing villages, buildings and facilities are preserved and local building materials are broadly used.
Journal of Korean Association for Spatial Structures
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v.21
no.1
/
pp.105-112
/
2021
In this paper, the dynamic response was analyzed by performing linear dynamic analysis using historic earthquake loads on twisted-shaped structures and fixed structure among free-form high-rise structures with atypical elevation shape following prior studies. In addition, the dynamic characteristics of the analysis models according to the plane rotation angle of the twisted structure were compared and analyzed. As a result of the analysis, as the plane rotation angle of the twisted structure increased, the interlayer deformation rate increased in the high-rise part of 50th floors or more. The story shear force and the story absolute acceleration were similar in the entire structure. In the case of the story shear force, the response of the twisted shape model was rather reduced in the middle part. As a result of analyzing the dynamic response, the vulnerable layer where the response amplification of the twisted structure occurs was found to be 31st story.
International conference on construction engineering and project management
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2009.05a
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pp.203-211
/
2009
Korean public owners who order public multi-family housing construction projects have yet to gain access to a model for predicting construction cost. For this reason, their construction cost prediction is mainly dependent upon historic data and experience. In this paper, a cost-prediction model based on Case-Based Reasoning (CBR) in the design phase of public multi-family housing construction projects was developed. The developed model can determine the total construction cost by estimating the different Building, Civil, Mechanical, Electronic and Telecommunication, and Landscaping work costs. Model validation showed an accuracy of 97.56%, confirming the model's excellent viability. The developed model can thus be used to predict the construction cost to be shouldered by public owners before the design is completed. Moreover, any change orders during the design phase can be immediately applied to the model, and various construction costs by design alternative can be verified using this model. Therefore, it is expected that public owners can exercise effective design management by using the developed cost prediction model. The use of such an effective cost prediction model can enable the owners to accurately determine in advance the construction cost and prevent increase or decrease in cost arising from the design changes in the design phase, such as change order. The model can also prevent the untoward increase in the duration of the design phase as it can effectively control unnecessary change orders.
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