• 국제초고층학회논문집
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• 제5권4호
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• pp.243-250
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• 2016

Today's architectural design trend based on the recognition of pluralism has led to multiple design directions for all building types including tall buildings. This contemporary design trend has produced many complex-shaped tall buildings, such as twisted, tilted, tapered and freeform towers. Among many different structural systems developed for tall buildings, the diagrid system, with its powerful structural rationale and distinguished aesthetic potential, is one of the most widely used systems for today's tall buildings. This paper studies structural performance of diagrid systems employed for complex-shaped tall buildings. Twisted, tilted, tapered and freeform tall buildings are designed with diagrid structures, and their structural performances are investigated. For the twisted diagrid study, the buildings are twisted up to 3 degrees per floor. In the tilted diagrid study, the angles of tilting range from 0 to 13 degrees. The impact of eccentricity is investigated for gravity as well as lateral loads in tilted towers. In the study of tapered diagrid structures, the angles of tapering range from 0 to 3 degrees. In the study of freeform diagrid structures, lateral stiffness of freeform diagrids is evaluated depending on the degree of fluctuation of free form. The freeform floor plans fluctuate from plus/minus 1.5 meter to plus/minus 4.5 meter boundaries of the original square floor plan. Parametric structural models are generated using appropriate computer programs and the models are exported to structural engineering software for design, analyses and comparative studies.

• 전산구조공학
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• 제27권4호
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• pp.7-19
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• 2014

• 한국콘텐츠학회논문지
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• 제20권3호
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• pp.190-199
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• 2020

본 연구는 세계 각지에서 초고층건물들이 사회적, 경제적 기반으로 순위를 경쟁하듯이 증가하고 있는 추세에 있어서 다양한 형태변형의 가능성 가운데 패러다임을 정립하는데 있다. 또한 초고층건물은 도시, 국가를 상징하기 때문에 관광자원으로 이용될 뿐만 아니라 개성 있는 랜드마크적 역할의 중요성을 가지고 미래지향적 곡면 형태를 모색하고자 한다. 본 연구의 목적은 복잡·다양한 비정형 건축형태 가운데 특히 곡선 형태에 대한 세분화를 통해 형태조합 및 복합관계를 유추하는데 목적이 있다. 따라서 곡면형을 정형화곡면, 단방향곡면, 이중휨곡면 등으로 구분하여 조형적 형태를 인지하는 방식보다는 실질적인 설계가 이루어지는 시공성을 근거하기 위해 세계초고층협의회(CTBUH)에서 선정한 순위 자료 중 총 50개의 초고층건물을 연구대상으로 하였다. 이러한 유형 분류는 초고층건축의 설계에 있어 다양한 곡면형을 추구하는 디자인과정에 합리적으로 관여하는 기초적 자료로 활용 될 수 있을 것이다.

• 국제초고층학회논문집
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• 제1권1호
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• pp.53-59
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• 2012

With the rise in CPU power and the generalization and popularity of computers, engineering practice also changed from hand calculations to 3D computer models, from elastic linear analysis to 3D nonlinear static analysis and 3D nonlinear transient dynamic analysis. Thanks to holistic design approach and current trends in freeform and contemporary architecture, BIM concept is no longer a dream but also a reality. BIM is not just providing a media for better co-ordination but also to shorten the round-the-clock time in updating models to match with other professional disciplines. With the parametric modeling tools, structural information is also linked with BIM system and quickly produces analysis and design results from checking to fabrication. This paper presents a new framework which not just linked the BIM system by means of parametric mean but also create and produce connection FE model and fabrication drawings etc. This framework will facilitate structural engineers to produce well co-ordinate, optimized and safe structures.