• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.553-557
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• 2013

Roof and exterior wall are designed and constructed in a manner that prevents the accumulation of water within the wall and roof assembly in the formal building. However, in a freeform building there is no clear distinction between exterior wall and roof. In other words, the exterior walls and roof systems of the freeform building are integrated as a surface, unlike the formal building envelope. Therefore, freeform architecture needs a systemized envelope design method to perform functions of exterior wall and roof. However, in many cases, construction methods for roof and exterior wall are applied to freeform buildings without necessary alterations, which lead to incomplete design, leakage, cracks and other problems. Freeform architecture is thus designed and constructed differently from formal buildings. In order to more easily and inexpensively actualize freeform architecture, Building Information Modeling (hereinafter referred to as BIM) has recently been applied in the construction industry. The studies and case analysis are not sufficient to identify the implications and contributions of freeform buildings in future similar projects. Therefore, this research will study design and construction methods for freeform surfaces. This study attempts to analyze the pros and cons of each method for the concrete surface frame, and then presents the panel options for envelope system of the freeform architecture.

• 한국과학예술포럼
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• 제37권4호
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• pp.205-216
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• 2019

본 연구는 박물관 비정형건축형태가 늘어나고 있는 현시점에서 학술적 건축형태계보에 관한 패러다임의 변화를 초래하고 있으며 이에 따른 전시공간에 미치는 영향에 관한 유무의 논증이 요구되어 진다. 따라서 선행되어야 하는 단계로서 비정형 건축형태와 전시공간과의 상관관계를 검증하기 위해 최근 2000년 이후 다양한 박물관 설립 또는 재개관한 사례의 현황분석을 통한 실질적인 비정형 형태의 경향을 파악한다. 이에 전시공간이 관람자의 공간체험에 더욱 효과적인가를 유추하기 위해 비정형건축과 전시공간과의 관계성에 대한 결론을 도출하는데 본 연구의 목적이 있다. 연구방법 및 결과는 다음과 같다. 첫째, 박물관의 비정형건축 형태적 개념 및 건축형태의 분류에 관한 문헌조사와 선행연구의 고찰을 통해 기준을 정립하여 도입하였다. 둘째, 싱가포르, 독일, 네덜란드 등을 직접 방문하여 사례 고찰을 통해 비정형 건축형태와 전시공간의 현황과 특성을 고찰하였다. 이때 Kare Vollers의 비정형 형태기준을 차용하여 분석을 하였다. 셋째, 비정형건축형태와 전시공간과의 관계성을 증명하기 위해 Kare Vollers의 비정형 형태기준과 비정형 전시공간을 중심으로 사례별 크로스 체크하여 결과를 도출하였다. 연구 결과의 내용은 다음과 같다. 첫째, 비정형건축형태의 EX(Extruder)(angle, ortho)와 전시공간 사선형은 유의미한 상관성을 가진다. 이는 싱가포르보다는 네덜란드와 독일에서 92.3% 명확하게 검증되었다. 반면, 전시공간 곡면형은 불명확한 관계성을 보이며 싱가포르 경우 RO(Rotor), FR(Free Shaper), TW(Twister) 등을 통해 곡면형 관계성을 가진다. 둘째, 비정형 건축형태와 전시공간의 사선 및 곡면형이 복합적 형태조합을 가진다. 특히 N-02, G-02는 융합된 형태로써 EX를 기본적 가지며 부분적 다양하게 형태를 함유하여 비정형의 복잡함을 유도하였다. 이와같이 비정형 형태는 다양한 조합으로 무한정의 변형이 가능하며 이를 대응하기 위해 다각도에서의 융합적 접근이 요구된다. 차후 본 연구를 기반으로 박물관의 비정형 건축형태와 전시연출디자인과의 관계성 유무를 논증하고자 한다.

• 대한건축학회논문집:계획계
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• 제34권2호
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• pp.95-106
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• 2018

This study aimed at revaluating Frank Gehry's freeform constructions. To this end, the study analyzed the way the space composition and circulation system of general constructions are connected with newly extended parts in the Art Gallery of Ontario and, based on this, comparatively analyzed freeform constructions before and after the art gallery, finding out what changes were made in the exterior and interior spaces of freeform constructions built after the art gallery. The results of the study are as follows. First, starting from extending the Art Gallery of Ontario, Gehry came to use glass instead of metal as main material of freeform constructions. In order to create the circulation connecting the existing building and the extended mass, Gehry applied continuing circulation for the first time to the gallery. Third, in addition to design motives, such as the woodblock print depicting a carp by Hiroshige, still life depicting a glass bottle by Morandi and the crease of the shawl in Vermeer's paintings, which Gehry applied to freeform constructions, the design motif which was recently acquired from Pyrenees rock was added. Fourth, the trend of mall construction appeared before and after the Art Gallery of Ontario. Finally, Gary used the shape of fish as a design motif for his work at an important turning point in his Freeform Architecture.

• 한국건축시공학회지
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• 제12권3호
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• pp.347-357
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• 2012

While it is generally possible to install curved panels manufactured in a factory within the permitted error range on an irregular surface frame of concrete or steel, it is difficult and expensive. Freeform architecture is thus designed and constructed differently from formal buildings. In order to more easily and inexpensively actualize freeform architecture, Building Information Modeling (hereinafter referred to as BIM) has recently been applied in the construction industry. However, the related research and case analyses are not sufficient to identify the implications and contributions of freeform buildings in future similar projects. Therefore, this research will study design and construction methods for freeform surfaces, particular the concrete surface frame of freeform buildings based on BIM, focused on the Tri-Bowl project. This study attempts to analyze the pros and cons of each method for the concrete surface frame of the Tri-Bowl, and then presents the lessons learned and implications related to the design and construction process of the freeform architecture. Several implications for design and construction of concrete surface frame of the freeform building, the Tri-Bowl, are found. The first is that manufacturing and installation of a curved concrete frame is precisely performed based on the exact numerical values of materials and installation made using BIM 3D technologies, such as CATIA and Rhino. The second is that close and continuous collaboration among the different participants in the construction of the Tri-Bowl allowed them to cope with virtual conditions. The third is that design and construction processes have changed, and high quality of the surface frame of a freeform building is required.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2012년도 추계 학술논문 발표대회
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• pp.225-226
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• 2012

Nowadays the widely used media in architecture include visualizations, animations and three-dimensional models. An optimized 3D digital method using active CAM(Computer Aided Manufacturing) and CNC(Computerized Numerical Control) imaging is developed for accurate shape and 3D measurements in freeform buildings in this paper. In contrast to a conventional building using auto CAD system and others, the proposed active digital optimization is based on a combination of 3D numerical data and parametric 3D model. The objective of this paper is therefore to present digital optimization method for constructability of freeform building. The 3D digital optimization method is appropriate to serious variations in freeform shape. The developed digital optimization method is necessary to be carried out to verify the robustness and accuracy for constructability.

• 한국산학기술학회논문지
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• 제14권9호
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• pp.4616-4626
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• 2013

디지털 기술의 급속한 발전과 함께 비정형 건축은 그 실현가능성을 높여 왔으며, 비정형 형태로 계획된 복잡한 형태의 건축 외피를 성공적으로 구축하기 위한 패널분할과 최적화 기법 연구에 대한 필요성이 증가하고 있다. 본 논문은 비정형 건축곡면의 성공적인 구축을 위한 선행과제로서 비정형 곡면과 건축곡면 패널분할 기법을 통합적 관점에서 재분류하고 명확한 개념정립을 제시하였으며, 패널분할 최적화 기법의 유형 분류와 유형별 특징 및 사례를 연구하였다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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• pp.258-259
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• 2013

Recently, architectural design has been changing from formal design to freeform design due to the digitalization of construction industry. Especially, the formal design has been accepted as a design trend recently and applied many times as a design concept in the architectural design competitions such as turn-key. However, various deflects such as water leak and cracks have been occurred because the traditional construction methods had been applied without any revision or adaptation of the formal construction method for the freeform building construction. Therefore this research proposes location point control method for freeform metal panel installation which is focused on the application of LH JinJu new office.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2012년도 추계 학술논문 발표대회
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• pp.227-228
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• 2012

In contemporary architectural practice, flat sections and plan drawings are no longer a primary means of representation and communication with participants. A typical building design has an ornamental exterior wall system and a roof system that should have water-proof quality and drainage function. By comparison, distinction between exterior wall and roof are unclear in freeform buildings, and they are integrated into a concept of a building envelope. This study is to propose 3D coordinate control technology for freeform structure by CNC curved tube method in order to develop a BIM-based envelope design and construction method for freeform building. Because a much wider freeform building construction can be achieved with correct 3D data and easy-to-implement in construction field, the proposed 3D coordinate control technology is highly recommended for practical use instead of the conventional CAD system.

• 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.

• 한국산학기술학회논문지
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• 제13권9호
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• pp.4259-4265
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• 2012

본 논문은 최근 국내 비정형 건축설계에 적용된 디지털 기술들과 기술 적용과정에서 도출된 문제점 등을 분석함을 그 목적으로 하며, 이를 위하여 세 개의 국내 비정형 건축 사례를 선정하여 전문가 인터뷰와 문헌조사를 통하여 비정형 설계 및 시공을 위하여 적용된 디지털 기술들을 분석하였다. 그 결과 비정형 곡면을 위한 패널 최적화의 필요성, 파일 호환성 확보의 중요성, 비정형 건축의 복잡한 형상으로 인한 시공성 확보의 어려움, 패널 부재제작시 3D 데이터 수용의 어려움이 발견되었으며, 도출된 문제점에 대한 사례별 해결방안을 분석하여 보았다.