• Title/Summary/Keyword: 정력학적 도해법

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Form Generation of Cable-Stayed Structures considering Structural Art - by using Graphic Statics - (구조미를 고려한 사장케이블 구조의 형태설계 - 정력학적 도해법 이용 -)

  • Kim, Namhee;Hong, Sung-Gul
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.35 no.4
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    • pp.167-174
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    • 2019
  • Cable-stayed structures provide a lot of possibilities toward the development of innovative structural forms regarding their expressiveness and uniqueness. Such cable-stayed structures, as form-active structures, can obtain a family of alternatives by changing parameters for defining geometric shapes. The concept of graphic statics is utilized to explain the relationship between the load path and structural forms because the load path of cable structures has something to do with their structural geometry. Moreover, this structural geometry has a dominant effect on both structural efficiency and structural elegancy. The proposed design method in this study will help designers conceive innovative structural forms considering structural safety, material efficiency, and structural art altogether.

Aesthetic Bridge Design using Creative Thinking (창의적 사고력을 이용한 미학적 교량 설계)

  • Kim, Nam-Hee;Koh, Hyun-Moo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.29 no.3A
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    • pp.217-225
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    • 2009
  • Bridge design is a problem-solving process whose level of design quality strongly depends on how to relate design constraints with feasibile design objectives in conceptual design stage. This paper has focused on how to create bridge shapes using creativity toward better looking bridge appearances in conceptual design stage. The term creativity in this study does not refer to the creation of something from nothing but to the reorganization of existing concepts. Such creativity includes not only enlarging the number of structural forms which is established based on the relationship between form and statics but also combining bridge design with artistic components like an architectural style. Also, this study has investigated the usefulness of graphic statics as a structural analysis tool showing the analysis results visually to generate bridge forms in conceptual design stage. It is expected that the proposed way of generating bridge forms in this study to be used not only for practical purpose but also for educational purpose regarding the aesthetic bridge design serving as a new education paradigm.

Preliminary Structural Form Planning for Suspension Bridge According to Force Flow (힘의 흐름을 따르는 현수교의 초기 구조형태계획)

  • Kim, Namhee;Koh, Hyun-Moo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.33 no.4
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    • pp.1315-1326
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    • 2013
  • Geometric form of a suspension bridge that uses load-sensitive cables takes on not only resisting loads but also becoming a visually sensible shillouette. This study has proposed a preliminary structural form planning for a suspension bridge following force flow by adopting the two possibilities of the graphic statics. First, the force polygon allows alternative load paths for the same loading condition. Second, a new structural form for the newly developed load path can be constructed using the reciprocal principle that exits between a structure space and the corresponding force polygon. Major structural form parameters that affect both structural and aesthetic aspecs are first identified. The relationships between structural forms and the corresponding force polygons are then investigated for the identified parameters. Upon the investigation, a stepwise process is developed for a preliminary structural form planning for a suspension bridge. The proposed structural form planning method is general that can be easily expanded to generate design alternatives of similar form-active structural systems. It is also expected that this method will be used as an educational tool to explain the interrelationships between structural forms and their force flows.