• 한국지반공학회논문집
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• 제31권9호
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• pp.53-68
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• 2015

매설가스배관의 내진설계에서 종방향 변형률은 중요한 평가 요소이다. 일반적으로 지진파를 조화파로 단순화하며 이의 파장은 토층의 주기와 전단파 속도의 곱으로 계산하여 매설관의 응답을 계산하는 경험적 설계방법이 널리 사용되지만 이의 정확성이 평가된 사례가 없다. 본 연구에서는 1차원 지반응답해석을 수행하여 매설심도에서의 변위-시간 이력을 추출하였으며, 이를 적용한 시간이력해석을 수행하여 매설관의 응답을 평가하였다. 매설관과 지반의 상호작용은 3차원 쉘-스프링 모델을 사용하여 모사하였다. 시간이력해석으로 계산된 결과는 설계방법과 비교하여 이의 정확성을 평가하였다. 비교 결과, 파장을 예측하기 위해서는 지반응답해석을 수행해야 하는 것으로 나타났다. 토층의 고유주기는 가속도의 탁월주기를 예측하는 데에는 활용될 수 있으나 변위의 탁월주기를 예측할 수 없는 것으로 나타났다. 반면, 파장에 대한 정확한 정보가 제공될 경우, 조화파에 대하여 제시된 해석해는 정확도가 높으며 설계에 적용 가능한 것으로 나타났다. 본 연구 대상이 동시베리아 지역에 적용될 매설가스관이라 동시베리아 지역의 대표 주상도를 해석 에 사용하였지만 본 연구의 결론은 기타 모든 지역에 적용 가능하며 가스관뿐만 아니라 상수도관 등 다양한 매설관에 적용 가능하다.

• Computers and Concrete
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• 제25권3호
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• pp.273-282
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• 2020

A new seismic design methodology for precast concrete diaphragms has been developed and incorporated into the current American seismic design code. This design methodology recognizes that diaphragm inertial forces during earthquakes are highly influenced by higher dynamic vibration modes and incorporates the higher mode effect into the diaphragm seismic design acceleration determination using a first mode reduced method, which applies the response modification coefficient only to the first mode response but keeps the higher mode response unreduced. However the first mode reduced method does not consider effects of diaphragm flexibility, which plays an important role on the diaphragm seismic response especially for the precast concrete diaphragm. Therefore this paper investigated the effect of diaphragm flexibility on the diaphragm seismic design acceleration for precast concrete shear wall structures through parametric studies. Several design parameters were considered including number of stories, diaphragm geometries and stiffness. It was found that the diaphragm flexibility can change the structural dynamic properties and amplify the diaphragm acceleration during earthquakes. Design equations for mode contribution factors considering the diaphragm flexibility were first established through modal analyses to modify the first mode reduced method in the current code. The modified first mode reduced method has then been verified through nonlinear time history analyses.

• 조형예술학연구
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• 제6권
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• pp.249-266
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• 2004

Nowadays more than 200 countries are living on the earth in international relation. Having their own culture and history, these countries constitute international society, creating their national image with their own identity based on the culture and history. Though each country has cultural goods in which it combines its culture and history to economic area, the global and cultural goods representing a country is not made in short term, but completed by the combination of its long tradition, cultural consciousness of the nation and artistic level. That is to say, the image developed by the country is naturally embodied in the goods and the world recognizes the image and confirms the goods. To embody such Korean and global goods, it is essential to put priority on the research of history and culture of our society. Needless to say, it is very important to find the value of our own differentiated beauty and apply it to each area of design industry. Recognizing the differentiated value of our own cultural originality, this research performs the design of scarf and necktie to exhibit Korean image in modern and fashionable ways for commercialization by developing design of fashion and cultural goods to which Korean image is applied. Through literature and various informations, the theme of design that can best convey Korean image is determined to be the national flag of Korea, Taegeukki and five cardinal colors and the researching method is as follows. First, though the area of developing designs of cultural goods is very wide and various including commerce, industry, products , fashion, handicraft and traditional handicraft, etc., this research sets the scope of developing design, focusing on the fashion accessories utilizing the textile design such as costume, scarf, necktie and so on. Second, the definition and scope of cultural goods and the present situation of domestic cultural goods will be examined. Third, the modelling property and symbolic meaning of the national flag of Korea (Taegeultki) and five cardinal colors, the theme of design will be studied. Fourth, on the basis of above research, scarf and necktie will be designed by modern and fashionable design to which Korean image is applied. Fifth, this is textured in textile printing and gradation for commercialization.

• 건축역사연구
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• 제29권5호
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• pp.51-61
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• 2020

Historically, rhythm has played a key role not only in musical composition, but also in architectural design. In 1893, architectural theorist and art scholar August Schmarsow, in "The Essence of Architectural Creation," created a new definition of architecture as space-creation and characterized rhythm as a design principle. However, this new idea was confronted by Heinrich Wölfflin. While Schmarsow's theory represents a dynamic world-view based on anthropomorphism, the architectural theory of Wölfflin is based on the notion of harmony, displaying a kind of conservative stasis. These two main streams have greatly influenced the development of modern architecture. The concept of space has prevailed in the discourse of modern architecture, but the principle of rhythm has seldom received any positive recognition. This article introduces and develops the concept of rhythm and disputes whether Behrens and Frankl in particular, two who dispute Schmarsow's theories, have used the concept of rhythm in terms of space. I conclude that they could not overcome the notion of the physical-the body-, thus their use of the term rhythm is incongruous with the notion of space. The idea of rhythm in architectural creation remains an up and coming idea.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• 제1호
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• pp.202-207
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• 2001

Covering an area of about 39 ha, Qingming Shanghe Park is located in the northwest of Kaifeng, formerly the capital of seven dynasties in China. It is intended to serve as a tourist attraction based on a painting 〃Qingming Festival at Riverside〃 by Zhang Zeduan of the Northern song Dynasty, which vividly illustrates a real life on the both sides of the Bian River as well as in the urban area, Kaifeng, in early Spring. The park is a collection of varied buildings such as shops, restaurants, tea-houses, theaters, and hotels in the North song style, with an introduction of the history of Kaifeng, this paper examines design philosophy and methodology of the park, and discusses the creative design of the first stage development known as known as The South Area of the park. Marked by the Rainbow Bridge and the City Gate, the South Area is divided into three parts, the rural, suburban, and urban parts which are organized according to the spatial order showed in the painting. The South Area proves to be very successful because of its amazing sense of history and interesting folk performance. Furthermore, the preliminary 9planning of the second stage development known as The North Area is presented with references to culture, history and customs. The North Area is proposed to include the Old Sports & Games Garden, the Exhibition Garden, and the Hot Spring Garden with an appearance of the imperial gardens in the Northern Song, integrated with participation of old sports and games, display of old science & technology achievements, and enjoyment of hot spring bath.

• Earthquakes and Structures
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• 제20권2호
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• pp.161-173
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• 2021

The structural behavior of a tensile fabric structure, known as hypar, is investigated. Seismic-induced stresses in the fabric and axial forces in masts and cables are obtained using accelerograms recorded at different regions of the world. Time-history analysis using each recording are performed for the hypar by using finite element simulation. It is found that while the seismic stresses in the fabric are not critical for design, the seismic tensile forces in cables and the seismic compressive forces in masts should not be disregarded by designers. This is important, because the seismic design is usually not considered so relevant, as compared for instance with wind design, for these types ofstructures. The most relevant findings of this study are: 1) dynamic axial forces can have an increase of up to twice the static loading when the TFS is subjected to seismic demands, 2) large peak ground accelerations seem to be the key parameter for significant seismic-induced axial forces, but not clear trend is found to relate such forces with earthquakes and site characteristics and, 3) the inclusion or exclusion of the form-finding in the analysis procedure importantly affects results ofseismic stresses in the fabric, but not in the frame.

• 건축역사연구
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• 제31권3호
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• pp.7-16
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• 2022

Fen(分°) is the proportional dimension unit of the standard timber section on Yingzaofashi(營造法式), and there is a phrase that not only structural members but the whole structural design of a building also use Fen as the dimension unit on the book. But in fact only the section dimensions of structural members are recorded by Fen, but the design dimensions are recorded by Chi(尺) on the book. Other historical records also described the building size by Chi. So there has been long-standing debate on the phase in Chinese architectural history society, including the recent confrontation on the analysis of survey figures of the east great hall of Foguangsi temple(佛光寺 東大殿). This paper analyzes all the records about the size of structural members and section planning on the book to make various calculation and evaluation. And it makes a survey of Cai(材) as the dimension and design unit between Chi and Fen through geometric analysis. Cai might be a rough unit of measurement in terms of structural and proportional scheming on Yingzaofashi, and the full size Cai(足材) had been a building scheming module before the Song dynasty.

• Earthquakes and Structures
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• 제19권3호
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• pp.175-188
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• 2020

The Hengda Group super high-rise building in Jinan City uses the frame-core tube structural system. With a height of 238.3 m, it is above the B-level height limit of 150 m for buildings within 7-magnitude seismic fortification zones. Therefore, it is necessary to apply performance-based seismic design to this super high-rise building. In this study, response spectrum analysis and comparative analysis of the structure are conducted using two software applications. Moreover, elastic time-history analysis, seismic analysis under an intermediate earthquake, and elastic-plastic time-history analysis under rare earthquakes are performed. Based on the analysis results, corresponding strengthening measures are implemented at weaker structural locations, such as corners, wall ends connected to framed girders, and coupling beams connected to framed girders. The failure mode and failure zone of major stress components of the structure under rare earthquakes are analysed. The conclusions to this research demonstrate that weaker locations and important parts of the structure satisfy the requirements for elastic-plastic deformation in the event of rare earthquakes.

• 한국실내디자인학회논문집
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• 제6호
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• pp.63-66
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• 1995

Our natural desire to exuviate old theory and search for new ideas means conversion and reformation. Howev-er, the new idea of the present moment will soon become an ancient history when the next generation emerges with more advanced ideas. Naturally, we have learned to accept the past history and utilized it as a the foundation for the future. Through the repeated process of the learning method, the popula-tion cultivate themselves with proper understanding and appropriate attitude toward design. By analyzing social behaviors of the past and living conditions, we can ex-pand our imaginations beyond limits. Each society and its local condition have tremendous effects on the develop-ment and progress of artistic theories, techniques and craftsmanship, and potential design of every day use products. Today, interior design can not afford to ignore the or-ganic relationship of life style and space. Thus, the plan-ning of space means the planning of life style. Life style, as it is, has a vast definition and changes with time. That is why spaces, which consider the life style and its environment when designed, show different aspects ac-cording to its corresponding time. Interior design, in particular, differs by time and re-gion to create its unique style. The change in space is the natural result of the change in life style which again is sensitive to the change in cultural and environmental elements. Design is no longer designing of mere physical elements and environment. Design should be taken as the equivalent of creating spiritual culture.

• 한국실내디자인학회논문집
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• 제13권5호
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• pp.154-161
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• 2004

When people visit other countries, the first place to go would be either a museum or an art gallery because it might be the most effective way that people could understand culture and history of the place in a short time. It can be alleged that a museum must be an important cultural space because people can experience their life, history and art there. According to these cultural importance, the purpose of this study is to suggest the environmental design of $\boxDr$Design Museum$\boxUl$ through the Transparency of the Cubism. The Transparency means a capability of transmitting light so that objects on the other side can be seen clearly. The Concept of the Transparency could be taken effects in architecture by overlapping facets or space. By understanding formative properties of the Cubism, which especially focused on Transparency, 1 would like to propose the environment as an art and the exhibition-environment as a way of communication. As it were, the study can be valued as a new approach on condition that formative feature is interpreted with modern terms and the ‘Digital technology’ is not used a tool of representation but a tool of thought in terms of design. Moreover, it has a great significance that formative language of the Cubism will be able to be applied to the environmental design through the experimental and creative design process.