• 한국지열·수열에너지학회논문집
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• 제11권3호
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• pp.1-6
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• 2015

In this study, we analyzed t he design condition for appropriate design factor at geothermal system design documents. It is intended to provide the proper information of geothermal system design condition when construct new building, designer can use design conditions more efficiently. Therefore, it is possible to plan for domestic geothermal system, through utilization at design element, to provide as a good information that can predict the approximate underground condition. Thus, provided the basic design conditions that can predict the capacity of the geothermal system. It will be the first step to solve the problem.

• 대한토목학회논문집
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• 제26권1A호
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• pp.163-171
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• 2006

본 논문에서는 프리스트레스를 이용한 가시설 공법(IPS)에 적용되는 띠장을 이용한 굴착면의 해석 및 설계절차에 대한 연구를 수행하였다. 받침대의 갯수에 따라 설계토압을 받는 IPS 띠장의 초기 긴장력 계산식을 유도하였다. IPS 띠장으로 구성된 빌딩 굴착면의 전산해석을 위해 띠장은 뼈대요소, 지반은 압축력 전담요소, 케이블은 인장력 전담요소를 사용하여 등분포토압 및 편토압을 받는 굴착평면의 전산해석을 수행하였다. 긴장력과 설계토압에 의한 축력과 휨모멘트를 계산하여 축응력과 휨응력을 산출하고 합성응력검토를 수행하여 굴착면의 안전성을 검토하였다.

• 국제초고층학회논문집
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• 제12권3호
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• pp.235-239
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• 2023

In this study, the fire resistance performance of the concrete-filled steel tube (CFT) columns and thin steel-plate composite (TSC) beams installed at a 20-story office building were designed using a performance-based structural fire design. Because of the lack of any specific provisions in the building code and guidelines for structural engineers about the performance-based approach, the only prescriptive approach has been selected for designing fire-resistant structures in Korea. To evaluate the fire resistance performance of the CFT columns and TSC beams, finite element analysis verified by the experimental results studied by several researchers was conducted with ABAQUS. From the fire scenario, the temperature distributions of the CFT columns and TSC beams were found via finite element analysis and the behaviors of the CFT columns and TSC beams were investigated in the structural field based on the temperature distribution.

• KIEAE Journal
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• 제2권3호
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• pp.47-54
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• 2002

As the problems of environment have been increasing, the architecture is exploring ways toward development of a idea for future generation. The purpose of this study is design element of environment-friendly architecture, and a general concept and mark of environment-friendly architecture are considered. And then, the design element is analyzed to come true the mark by considering the internal and external examples. The related elements on design of environment-friendly architecture are proposed by considering estimation items: The items are divided into six branches that is placement strategy, outside space furtherance, form of building, room environment furtherance, supply processing system, and preservation administration. Through this process, this study is proposed applicable solution of a concrete plan.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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• pp.175-178
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• 2010

Public institutions and owners have been introduced to use Building Information Modeling (BIM) tools. Learning BIM becomes an important factor in design process of undergrad program. The purpose of this study is to demonstrate an integrated architectural engineering design process using BIM tools. BIM education programs are analyzed to compare the level of detail in BIM education. An architectural engineering design class needs to involve BIM to introduce integrated process. An architectural engineering design process needs be based on understanding design, building structure, construction and building services. 3D Modeling helps understanding a building structure and checking environment-friendly element analysis. As a result of this research, new process of design education is proposed under four issues.

• 한국실내디자인학회논문집
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• 제18권2호
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• pp.41-49
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• 2009

Contemporary design environment is formed with image-centered trend based on pluralism. In this point of view, enterprises' building lobbies are public places containing the equivocal meaning, actively utilizing light as a design element to express the image of enterprises' identifications. Light is an immaterial entity having unlimited possibilities and potentials on space. It also acts as media to activate spaces and create new images in connection with formative elements of space. This study is to figure out how lightings are expressed and affected the formative characteristics of office lobby spaces and activate the specific characteristics of spaces. As a result, we drew conclusions as follows. First, as state-of-the-art technology and media are introduced, light is expressed on spaces as floating, direction, rhythm, silhouette, metaphor and allusion, sense of depth and volume. Second, expressive aspects of light in lobby space are embodiment of light, substantiation of immateriality, standing of materiality from the perspective of spatial aesthetics, and distortion/transformation of shape, pluralism phenomena of space from the perspective of spatial structure. In this way, light on building lobbies which are greatly required design differentiation strategy, specializes space and also integrates all the designs as not only a functional element but also a mental, psychological, formative element. Consequently, light on lobby spaces induces communication between spaces and users, makes formative value of existence in itself, and presents the characteristics of differentiated enterprises' identities.

• Ocean Systems Engineering
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• 제13권4호
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• pp.367-384
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• 2023

Herein, we present the design and development of an efficient finite element analysis model for thermal plate forming in shipbuilding. Double curvature shells in the ship building industries are primarily formed through the thermal forming technique. Thermal forming involves heating of steel plates using heat sources like oxy-acetylene gas torch, laser, and induction heating, etc. The differential expansion and contraction across the plate thickness cause plastic deformation and bending of plates. Thermal forming is a complex forming technique as the plastic deformation and bending depends on many factors such as peak temperature, heating and cooling rate, depth of heated zone and many other secondary factors. In this work, we develop an efficient finite element analysis model for the thermo-mechanical analysis of thermal forming. Different simulations are reported to study the effect of various parameters affecting the process. Temperature dependent properties are used in the analysis and the finite element analysis model is used to identify the critical flame velocity to avoid recrystallization of plate material. A spring connected plate is modeled for structural analysis using spring elements and that helps in identifying the resultant shapes of various thermal forming patterns. Finally, detailed simulation results are reported to establish the efficacy, applicability and efficiency of the designed and developed finite element analysis model.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 가을 학술논문 발표대회
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• pp.96-97
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• 2021

In the Building Act, performance-based fire safety design is being promoted for institutionalization. The behavior of the structure against fire conditions can be predicted by using the advanced numerical analysis method based on the FEM (Finite Element Method) to predict the entire structural behavior including the behavior of the structure, but there is a limit to expressing the fire properties of the space and predicting the fire properties It is difficult to determine the variables to be transmitted to the FEM (Finite Element Method) model from the fire simulation results using FDS (Fire Dynamics Simulator). Accordingly, the purpose of this study is to introduce the code user's manual for FDS and FEM unidirectional coupling analysis.

• Advances in Computational Design
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• 제1권4호
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• pp.329-344
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• 2016

In this paper, a methodology to simulate the whole-building behaviour of the tall building under fire is developed by the author using a 3-D nonlinear finite element method. The mechanical and thermal material nonlinearities of the structural members, such as the structural steel members, concrete slabs and reinforcing bars were included in the model. In order to closely simulate the real condition under the conventional fire incident, in the simulation, the fire temperature was applied on level 9, 10 and 11. Then, a numerical investigation on the whole-building response of the building in fire was made. The temperature distribution of the floor slabs, steel beams and columns were predicted. In addition, the behaviours of the structural members under fire such as beam force, column force and deflections were also investigated.

• 한국공간구조학회논문집
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• 제9권3호
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• pp.49-58
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• 2009

본 논문은 대공간에 적용된 친환경 계획요소 검토와 친환경요소기술의 적용성을 외국의 사례연구를 통해 분석함으로서 국내 친환경건축물 활성화와 설계기술 향상에 기여할 기초자료를 도출하고자 하였다. 본 연구에서는 2010년 동계올림픽 개최에 즈음하여 최근 완공된 캐나다 동계스포츠시설 2곳과 컨벤션센터 1곳을 대상으로 이들 대공간에 적용된 친환경계획요소를 소개하고, 이들 대공간에 적용된 친환경 건축기법을 LEED Green Building Rating System평가항목을 기준으로 분석하였다.