• Title/Summary/Keyword: design fact

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Possibility of Using the Classical Mechanics for the Preliminary Design of Laminated Composite Structures for Civil Construction

  • Kim, Duk-Hyun-
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 1991.10a
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    • pp.115-120
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    • 1991
  • At the preliminary design stage, the orientations of laminae in a laminate are not known. This fact discourages the most of engineers from the beginning. If the quasi-isotropic constants are used, it halps the design engineer greatly to start his work. If conventional mechanics and elasticity theories can be used, the effort for design and analysis is greatly reduced. This paper reports the possibility of using the classical mechanics at the preliminary design stage for the laminated composite primary structure for civil construction. The result is quite promissing.

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The Study of Seismic Design for Underground RC Structure (지하 철근콘크리트 구조물의 내진설계에 관한 연구)

  • 조병완;문병옥;태기호;안제상
    • Proceedings of the Korea Concrete Institute Conference
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    • 2002.05a
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    • pp.867-872
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    • 2002
  • The seismic design from the underground structures with the ground structures differently relative acceleration of ground and structure for, that period ci it was a condition where the recognition against the seismic design of the underground structure is insufficient because the decease damage does not very to that extent. Analysis result, earthquake hour section power increase one that price smiles from one part and when it applies a regular design hour safety rate 20%, seismic efficiency level satisfaction is it becomes feed with the fact that it will be able to augment the efficient characteristic of design.

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Evaluation of the Capability of Non-Ice Strengthened Naval Vessels for Operation in Ice-Infested Area (비내빙설계 해군 함정의 결빙지역 운항 능력 평가)

  • Kim, Hyunwook
    • Journal of the Korea Institute of Military Science and Technology
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    • v.24 no.2
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    • pp.151-164
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    • 2021
  • With the gradual increase in the ROK naval power, it is an undeniable fact that the time of operation in the ice-infested area will be necessary in the near future. Recently, cases of ice formation around Korean waters in wintertime have been frequently reported. However, in the case of the ROK naval vessels to date, it is a fact that the ice-strengthened perspective has not been considered from the design stage. In this study, the capability of operation in the ice-infested area of the ROK naval vessels, which did not take into account the ice-strengthened design, was reviewed through the evaluation of the vessel's structural integrity in accordance with the sea ice conditions.

A Study on Association Mechanism of Lobby Design in Design Hotels according to Lifestyles (라이프스타일에 따른 디자인 호텔 로비 디자인의 연상 기제에 관한 연구)

  • Yoon, Hyun-Joo;Lyu, Ho-Chang
    • Korean Institute of Interior Design Journal
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    • v.25 no.6
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    • pp.116-126
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    • 2016
  • In modern society which changes from quantity-seeking society to value-seeking one, people's various lifestyles have great effect on consumption patterns and work as an important factor in choosing hotels. The fact that design hotels, which provide unique experiences with differentiated and sensitive designs by reflecting various lifestyles, recently attract attention can be understood in the same context. As a matter of fact, design hotels recently serve as destinations as they become cultural and artistic icons which reflect customer lifestyles. Especially, the designs of lobby spaces in hotels play deciding role in customers' choices while representing the nature of hotels. In this respect, under the premise that the kinds of accumulated experiences are different depending on lifestyles and preferences for specific interior spaces are influenced by association mechanism formed by experiences, this study analyzed lobby spaces of design hotels which focus on specific lifestyles from the perspective of association mechanism based on experiences. As the method of analysis, this study classified the types of lifestyles and conducted case analysis to investigate what association mechanism works to enhance the preference of design hotels by types. Study classified lifestyles into experiential activity type, social meeting type, fashion-pursuing type and hideout-preferring type and analyzed cases of lobby designs in design hotels. The results of this case analysis are as follows; First, experiential activity type mainly utilized quasi-association and approach association through senses and social meeting type utilized quasi-association and memory association through emotions while fashion-pursuing type utilized quasi-association and presumption association through intuition and hideout-preferring type utilized quasi-association and approach association through thoughts. Second, it was found that most lobby designs are characterized by association mechanism in visual formative nature and that in temporal spatial nature working in complex way, and, through such process of association expansion, space stories are created. Stories of spaces created this way become unique identities of design hotels that provide new experiences for customers.

Simultaneous Optimization Using Loss Functions in Multiple Response Robust Designs

  • Kwon, Yong Man
    • Journal of Integrative Natural Science
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    • v.14 no.3
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    • pp.73-77
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    • 2021
  • Robust design is an approach to reduce the performance variation of mutiple responses in products and processes. In fact, in many experimental designs require the simultaneous optimization of multiple responses. In this paper, we propose how to simultaneously optimize multiple responses for robust design when data are collected from a combined array. The proposed method is based on the quadratic loss function. An example is illustrated to show the proposed method.

A Study on Human Engineering for Human Ability (인간능력에 대한 인간공학연구)

  • 이근희
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.1 no.1
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    • pp.3-10
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    • 1978
  • Human Engineering has an intention of design to keep the best condition of man-machine system. Hitherto the conception of design has been used to include existing engineering, as mechanical engineering and electric engineering. But the manufactured goods which to be made these process seem to be fully equipped on physical function, but faults come out discountent repeatedly to users. Accordingly, the development of industrial design has been demanded for improving functional design. It is considered that industrial design has aesthetical sensation. In actually, it must be 1. to provide for utility and safety, 2. easy for maintenance, 3. cheap at cost. 4. possible for sales appeal, 5. and good on appearance. As taking into consideration above five conditions, however, for 삯e sake of comprehend to human being about operating method of machinery and equipment, it should be reflected to design what kind of training way will be needed. Also, it must be considered what a certain extent would be occurred tiredness to human being. in other words. it should be considered the design to be possible the reflect to principle of motion economy, It should not be made adoption of human ability for the designed machinery, it must be adopted the method to consider the design on presuppose about human ability. For study of these actual fact, this paper is summarized the essence of human engineering, and also to find out the methodology as humanistic engineering, It is, Particularly, subdivisionization of operation in flow operation is essential direction of mechanization. Generally. as developing the subdivisionization of operation, it will be lack of satisfaction on operation which worker take charge of. The subdivisionization of operation makes the operation to simple-repetitive, to lose the interest of worker and will be also come into question to the feeling of worker's livelihood. It is human's fundamental desire to have get skilful function or special technique. But the subdivisionization of operation hold in those human's fundamental desire and so that it will likely to lose the sorority of living by this fact. Accordingly, this paper have an operation to hold out the methodology on presuppose about human ability.

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Seismic Performance of High-rise Concrete Buildings in Chile

  • Lagos, Rene;Kupfer, Marianne;Lindenberg, Jorge;Bonelli, Patricio;Saragoni, Rodolfo;Guendelman, Tomas;Massone, Leonardo;Boroschek, Ruben;Yanez, Fernando
    • International Journal of High-Rise Buildings
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    • v.1 no.3
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    • pp.181-194
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    • 2012
  • Chile is characterized by the largest seismicity in the world which produces strong earthquakes every $83{\pm}9years$ in the Central part of Chile, where it is located Santiago, the capital of Chile. The short interval between large earthquakes magnitude 8.5 has conditioned the Chilean seismic design practice to achieve almost operational performance level, despite the fact that the Chilean Code declares a scope of life safe performance level. Several Indexes have been widely used throughout the years in Chile to evaluate the structural characteristics of concrete buildings, with the intent to find a correlation between general structural conception and successful seismic performance. The Indexes presented are related only to global response of buildings under earthquake loads and not to the behavior or design of individual elements. A correlation between displacement demand and seismic structural damage is presented, using the index $H_o/T$ and the concrete compressive strain ${\varepsilon}_c$. Also the Chilean seismic design codes pre and post 2010 Maule earthquake are reviewed and the practice in seismic design vs Performance Based Design is presented. Performance Based Design procedures are not included in the Chilean seismic design code for buildings, nevertheless the earthquake experience has shown that the response of the Chilean buildings has been close to operational. This can be attributed to the fact that the drift of most engineered buildings designed in accordance with the Chilean practice falls below 0.5%. It is also known by experience that for frequent and even occasional earthquakes, buildings responded elastically and thus with "fully operational" performance. Taking the above into account, it can be said that, although the "basic objective" of the Chilean code is similar to the SEAOC VISION2000 criteria, the actual performance for normal buildings is closer to the "Essential/Hazardous objective".

The Pastoral Ideal and its Legacy to Landscape Design (조경 설계에서 전원 이상의 전통과 그 이면)

  • Pae, Jeong-Hann
    • Journal of Korean Society of Rural Planning
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    • v.5 no.2 s.10
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    • pp.46-55
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    • 1999
  • This paper examines the pastoral ideal and its legacy to landscape design. We have had the routine convention of experiencing natural beauty from the picture-like nature. We, who would liken a scenic view to a picture, often equate natural beauty with superficial representations of nature shown in pastoral literature and traditional landscape paintings: the lush of towering trees, the field of endless green, the soft babbling flow of the river and the crisp clear sky. It is not a portrayal of nature as it is, but in fact a conceptual expression of its ideal form. The ideological root of that natural beauty can be retraced to the pastoral ideal, so eagerly longed for by people of the western world. A pastoral landscape graciously marked with leisurely peace and subtle harmony is what we identify as beautiful nature. In fact, however, it is no more than an artificial refuge in contextual isolation from its surrounding, and a by-stander's nature seen purely through the eyes of the outsider. The tradition of pastoralism, reaching its peak in the 18th century with its English Landscape Garden style, was transplanted into the real world through the practice of landscape architecture. Landscape design in such a form is just a static means of decoration devoid of meaning and process. And we simply identify the green ornamentation with nature.

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A Study on the Understanding of Urban landscape Planning and Administration - Survey of Specialists & Public Officers in Gwang-ju City and Chonnam Province, Korea - (경관계획에 대한 인식과 경관행정의 전개에 관한 연구 -광주.전남지역 경관관련 전문가 및 공무원을 대상으로 -)

  • 유창균;양동현;조용준
    • Journal of the Korean housing association
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    • v.13 no.4
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    • pp.75-80
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    • 2002
  • To make more beautiful and exciting scenery of a city, the design of private buildings has to be controlled in a way to improve the public amenity by the proper design of buildings ensuring views to natural assets in the city. And it is important to provide an urban landscape solution, while solving the afflictions of architects between their dream in individual architecture and the significances of Urban landcape as a whole. This research is based on the survey of the experts and public officers in the field of Urban landcape planning and administration in Gwang-ju City and Chonnam Province in Korea. The search reveals the following fact. Comparing the fact that some of foreign countries have proper systems of planning, regulations, guidelines, and design awards for the improvement of Urban landcape long time ago, the systems of Urban landcape planning and related administration in Korea is still in a primitive stage, due to the lack of the consideration of local characteristics and resources, variety of solutions, and setting of goals and objectives. Consequently, public enlightening of the importance of Urban landcape and the development of relevant contents in Urban landcape planning and administration are mostly required, to build up the system that can allow people to live in beautiful and good scenery of a city.

Recommendations of Safety Design in Road Tunnels - Based on up-to dated experiences - (도로터널의 방재설계 -사례중심으로-)

  • Park, Jung-Joo
    • Tunnel and Underground Space
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    • v.17 no.5
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    • pp.337-349
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    • 2007
  • Yearly, it seems the fact that the numbers of tunnels with wide sections are on the rise as the length of tunnel and number of lanes continues increasing. According to these trends, well-schemed plans of design, construction and management related with tunnel safety has become to be crucial. It is a high possibility to be observed by the fact that the direct effects of casualties and property damages are caused by the situations of car collisions, bump to solid structures by careless driving and the outbreak on vehicles by mechanical fault. Therefore, in order to prevent these types of accidents, we would make issues md adopt appropriate mechanical and management plans of emergency exits and disaster prevention equipments inside of tunnel, based on up-to dated experiences and study of foreign cases, to structural design technology. The objectives of this study are to recognize related actual problems and suggest improvement plans.