• 한국공간구조학회논문집
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• 제16권4호
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• pp.37-44
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• 2016

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 dome 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.

• 한국공간구조학회논문집
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• 제18권1호
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• pp.109-116
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• 2018

As the number of high-rise buildings increases, a mid-story isolation system has been proposed for high-rise buildings. Due to structural problems, an appropriate isolation layer displacement is required for an isolation system. In this study, the mid-story isolation system was designed and the seismic response of the structure was investigated by varying the yield strength and the horizontal stiffness of the seismic isolation system. To do this, a model with an isolation layer at the bottom of $15^{th}$ floor of a 20-story building was used as an example structure. Kobe(1995) and Nihonkai-Chubu(1983) earthquake are used as earthquake excitations. The yield strength and the horizontal stiffness of the seismic isolation system were varied to determine the seismic displacement and the story drift ratio of the structure. Based on the analytical results, as the yield strength and horizontal stiffness increase, the displacement of the isolation layer decreases. The story drift ratio decreases and then increases. The displacement of the isolation layer and the story drift ratio are inversely proportional. Increasing the displacement of the isolation layer to reduce the story drift ratio can cause the structure to become unstable. Therefore, an engineer should choose the appropriate yield strength and horizontal stiffness in consideration of the safety and efficiency of the structure when a mid-story isolation system for a high-rise building is designed.

• Structural Engineering and Mechanics
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• 제47권6호
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• pp.791-818
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• 2013

The seismic performance of reinforced concrete (RC) frame structures with irregularities leading to soft first floor is studied using capacity assessment procedures. The soft first story effect is investigated for the cases: (i) slab-column connections without beams at the first floor, (ii) tall first story height and (iii) pilotis type building (open ground story). The effects of the first floor irregularity on the RC frame structure performance stages at global and local level (limit states) are investigated. Assessment based on the Capacity Spectrum Method (ATC-40) and on the Coefficient Method (FEMA 356) is also examined. Results in terms of failure modes, capacity curves, interstory drifts, ductility requirements and infills behaviour are presented. From the results it can be deduced that the global capacity of the structures is decreased due to the considered first floor morphology irregularities in comparison to the capacities of the regular structure. An increase of the demands for interstory drift is observed at the first floor level due to the considered irregularities while the open ground floor structure (pilotis type) led to even higher values of interstory drift demands at the first story. In the cases of tall first story and slab-column connections without beams soft-story mechanisms have also been observed at the first floor. Rotational criteria (EC8-part3) showed that the structure with slab-column connections without beams exhibited the most critical response.

• 고전문학과교육
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• 제37호
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• pp.111-149
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• 2018

이 연구는 <하생기우전>의 서사구조를 갈등양상을 중심으로 이해하고, 이를 작가의 삶이나 사유방식과 대응시켜 그 관련성을 규명하기 위해 마련되었다. 구성의 앞부분 갈등 양상은 기존 견해와 다른 방향에서 이해가 가능하다. 입신공명과 애정추구라는 두 가지 다른 지향의 이면에는 주인공의 자기실현 방식이 일관된 문제의식으로 자리하고 있다. 표면적으로는 사회 문제로 부터 남녀애정으로 전환되고 있지만 자아의 내면적 지향이 갈등의 동기가 되고, 동시에 그것이 갈등을 극복하는 요인이 되는 방식으로 의미구조가 설정되어 있다. 혼인 허용 여부를 둘러싼 갈등의 이면에는 부모가 누린 삶의 방식에 대한 여인의 저항과 반대가 그 중심을 이룬다. 의미를 확장하면 부모의 개심(改心)은 곧 왜곡되고 편향된 사회의 변화를 상정한다고 할 수 있다. 나아가 그 사회의 변화는 도덕적이고 윤리적인 차원에서 개인의 실천 행위를 통해 구현된다는 점을 나타낸다. 이 작품은 주인공의 '완결된 삶'을 보여주기 위한 과정이 전체 구성을 이루고 있다. 그것은 표면적으로 여인과의 혼인을 통하여 달성되는 것으로 되어 있다. 그러나 근본적으로 사대부 지식인의 삶의 방식과 사회 환경이 어떤 방향으로 변해야 하는가 하는 문제를 의미구조의 핵심에 두고 있다. 자아와 세계의 갈등이 내면의 성찰, 도덕적 실천 윤리로 귀결되는 지점에서 해소되는 구조가 이를 반영한다. 의미구조가 이처럼 중의적으로 설정되어있는 것은 이 작품의 뚜렷한 특징이다. 사회 변화로 읽힐 수 있는 여인 부모의 도덕적 윤리적 반성은 결국 훈구세력에 의해 왜곡된 사회 현실이 사림의 이념으로 개선되어 간다는 뜻을 지닌다. 하생과 여인의 혼인, 그 후의 성취로 표현되는 상황은 결국 사림의 실천적 윤리의식이 개인으로부터 사회로 확산해 감으로써 사림 주도의 이상사회를 실현하고자 하는 기재의 의지가 낭만적으로 표현된 것이라 할 수 있다.

• Earthquakes and Structures
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• 제7권1호
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• pp.83-99
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• 2014

This study is devoted to estimate higher-mode effects for multi-story structures with considering soil-structure interaction subjected to decomposed parts of near-fault ground motions. The soil beneath the super-structure is simulated based on the Cone model concept. Two-dimensional structural models of 5, 15, and 25-story shear buildings are idealized by using nonlinear stick models. The ratio of base shears for the soil-MDOF structure system to those obtained from the equivalent soil-SDOF structure system is selected as an estimator to quantify the higher-mode effects. The results demonstrate that the trend of higher-mode effects is regular for pulse component and has a descending variation with respect to the pulse period, whereas an erratic pattern is obtained for high-frequency component. Moreover, the effect of pulse component on higher modes is more significant than high-frequency part for very short-period pulses and as the pulse period increases this phenomenon becomes vice-versa. SSI mechanism increases the higher-mode effects for both pulse and high-frequency components and slenderizing the super-structure amplifies such effects. Furthermore, for low story ductility ranges, increasing nonlinearity level leads to intensify the higher-mode effects; however, for high story ductility, such effects mitigates.

• Earthquakes and Structures
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• 제11권1호
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• pp.165-178
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• 2016

The goal of energy-based seismic design is to obtain a structural design with a higher energy dissipation capacity than the energy dissipation demands incurred under earthquake motions. Accurate estimation of the story hysteretic energy demand of a multi-story structure is the key to meeting this goal. Based on the assumption of a mode-equivalent single-degree-of-freedom system, the energy equilibrium relationship of a multi-story structure under seismic action is transformed into that of a multi-mode analysis of several single degree-of-freedom systems. A simplified equation for the estimation of the story seismic hysteretic energy demand was then derived according to the story shear force and deformation of multi-story buildings, and the deformation and energy relationships between the mode-equivalent single-degree-of-freedom system and the original structure. Sites were categorized into three types based on soil hardness, namely, hard soil, intermediate hard (soft) soil, and soft soil. For each site type, a 5-story and 10-story reinforced concrete frame structure were designed and employed as calculation examples. Fifty-six earthquake acceleration records were used as horizontal excitations to validate the accuracy of the proposed method. The results verify the following. (1) The distribution of seismic hysteretic energy along the stories demonstrate a degree of regularity. (2) For the low rise buildings, use of only the first mode shape provides reasonably accurate results, whereas, for the medium or high rise buildings, several mode shapes should be included and superposed to achieve high precision. (3) The estimated hysteretic energy distribution of bottom stories tends to be underestimated, which should be modified in actual applications.

• 한국의류산업학회지
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• 제11권6호
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• pp.857-866
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• 2009

The objective of this study was to design a fashion storytelling method, which is a strategic instrument for constructing a fashion show with artistry and popularity, based on the principle and structure of storytelling. In order to understand the concept and principle of storytelling composed of story and telling and to introduce storytelling into fashion shows, we associated fashion design with the substance of a story, a show with the form of telling, and a fashion show with storytelling. Based on these associations, we analyzed the relationship between fashion show and storytelling and developed basic elements and structure necessary to design a fashion storytelling method. Through this study, we designed a fashion storytelling method with five steps, which are story planning, story development, fashion show structure design, fashion show production, and fashion show execution. These steps were again classified into contents setting step, structure design step, and expression step. The contents setting step included story planning and development for creating stories, and the structure design step means the design of fashion show structure that adds telling to the stories. Lastly, the expression step included fashion show production and execution that forms a storytelling by combining the stories and the telling.

• 만화애니메이션 연구
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• 통권50호
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• pp.187-214
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• 2018

이야기의 플롯을 인물이 가지고 있는 문제의 해결 과정으로 보는 3막 구조의 문제 기반 스토리텔링은 아리스토텔레스 이후로 대중적인 이야기의 창작자에게 창작의 가이드가 되어주었고, 이야기의 수용자에게는 극적 카타르시스를 제공하는 하나의 스키마로 작용해왔다. 뿐만 아니라 문제 기반 스토리텔링은 80년대 이후 지금까지 개발되고 있는 이야기 저작프로그램을 위한 구조로도 사용되어 왔다. 하지만 다수의 이야기 저작 프로그램들이 사용하는 문제 기반은 이야기의 외적 문제에만 초점을 맞춘 나머지, 수용자에게 인물의 내적 문제의 해결로부터 발생하는 카타르시스를 제공하지 못한다는 한계를 갖는다. 본 논문은 이와 같은 문제 기반 스토리텔링의 대안으로 국내의 이야기 저작 프로그램인 '스토리헬퍼'의 플롯 구조와 '스토리헬퍼'에 데이터베이스화 되어 있는 국내외 영화 900편의 결말을 분석하였다. '스토리헬퍼'는 인과율과 신화적 에피소드를 적용하여 인물의 외적 문제뿐만 아니라 내적 문제까지 고려할 수 있는 문제 기반의 플롯 구조를 제시한다. 이러한 플롯의 구조는 외적 문제의 해결과 미해결, 내적 문제의 해결과 미해결이라는 변수를 기준으로 성숙의 플롯(542편), 환멸의 플롯(111편), 교육의 플롯(132편), 비극의 플롯(205편)으로 유형화된다. 이와 같은 분석의 결과는 플롯을 기반으로 한 창작과 창작 프로그램 개발에 유의미한 구조를 제시할 수 있을 것으로 기대한다.

• 한국멀티미디어학회논문지
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• 제17권6호
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• pp.751-758
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• 2014

Under the environment of various network and multimedia, various theories are studied to make utilize digital story telling authoring. In the era of digital convergence and ubiquitous information, they want to send information with additional emotional information which is preferred constructive sending method. Digital storytelling refers to a unified technology for narrative structure with the picture and act. If engraft with particular research field, It will make interactive or linear story structure. These structures have problems that they are mismanaging on the result and they are not integrated systemization in each society. Because those are designing storytelling without development process and they are focusing on web distribution. This thesis is design using the object-oriented methodology of component-based design methodology, This thesis create digital storytelling and design metadata for contents management. In the requirement phase, subject and predicate part are extracted from the narrative structure of the story and restructure an organization. We explain by giving specific examples "kongjwi and patjwi" story as a case study.

• Steel and Composite Structures
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• 제46권6호
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• pp.857-865
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• 2023

This study aimed to develop a seismic retrofit technique using a steel frame which can be easily transported and assembled on site. This enables the retrofit steel frame to be easily attached to an existing structure minimizing the unwanted gap between the structure and the steel frame assembly. A one-story one-bay RC frame was tested with and without seismic retrofit using the proposed steel frame to verify the seismic retrofit effect of the proposed system, and an analysis model was developed in Opensees for seismic performance evaluation of a case study soft first-story model structure retrofitted with the developed steel frame assembly. Seismic performance of the model structure was also evaluated considering soil structure interaction effect. The experimental study confirmed that the proposed seismic retrofit system can be applied effectively to improve the seismic performance of framed structures. Time history analysis results of the model structure showed that the proposed steel frame assembly was effective in increasing the seismic load resisting capacity of the soft first-story structure. However more steel frame assemblies were required to satisfy the given performance limit state of the model structure located on weak soil due to the negative soil-structure interaction effect.