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- 주제어 : Light steel frame structure (검색결과 3 건)
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Kezhao Sun,Ting Zhou,Zhi-Hua Chen,Hongbo Liu,Zhexi Yang 한국강구조학회 2023 International Journal of Steel Structures Vol.23 No.5
The traditional structural design process of rural buildings requires a lot of trial calculations and iterations of modelling work. However, rural buildings are subject to construction costs and cannot be professionally designed and checked by designers like urban buildings. Their safety and economy are difficult to meet the requirements. Therefore, an intelligent design concept of rural light steel frame structure was proposed, including intelligent modeling and intelligent optimization. Based on the automatic layer recognition method and optical character recognition technology, the BIM intelligent modeling method of rural light steel frame structure corresponding to the standard atlas of rural buildings was proposed, including layer recognition, axis text data extraction, primary selection and automatic arrangement of components. The intelligent modeling results basically met the requirements of practical application. Based on the proposed two-stage genetic algorithm, an intelligent optimization method of rural light steel frame structure was given. The optimization speed was fast and the optimization effect was good. The proposed intelligent design method was verified by practical case. The results showed that the proposed intelligent design concept of rural light steel frame structure was feasible. Compared with the traditional manual design method, the design period could be shortened by more than 80%, and the structural design indexes were comparable.
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탄소강 프레임과 이중사출을 이용한 경량 복합재료 맨홀 리드의 구조설계 및 수치해석
유병일(Byeong Il You),오윤(Yun Oh),이교우(Gyo Woo Lee) 대한기계학회 2018 大韓機械學會論文集A Vol.42 No.1
본 연구에서는 기존 주철 재질 맨홀 리드의 고중량 문제를 해결하기 위해 탄소강 프레임과 이중사출 복합재료로 구성된 복합재료 맨홀 리드를 제안하였다. 먼저 복합재료 맨홀 리드에 사용할 탄소강 프레임의 구조설계를 진행하였는데, 구조해석 시뮬레이션을 이용하여 하중 분산에 효과적인 탄소강 프레임의 격자 구조를 제한요소를 반영하여 결정하였다. 또한, 탄소강 프레임의 무게와 용접 점 수 등으로 간접적으로 제조원가를 비교하고자 하였다. 고려했던 형상 중에서 주어진 하중에서 응력과 변형량이 작게 나타났던 해석결과와 비용 측면을 고려하여 육각형의 탄소강 프레임 격자형상을 가진 복합재료 맨홀 리드를 적절한 설계안으로 채택할 수 있었다. 이는 기존 철제 맨홀 리드보다 42% 정도 무게는 감소하였지만 최대 응력이나 변형량은 기존 철제 리드와 대등한 수준으로 유지할 수 있었다. In this study, a composite manhole lid composed of a carbon steel frame and a double injection composite material was proposed to solve the problem of the currently heavy manhole lids. First, the structural design of the carbon steel frame to be used for composite manhole lids was carried out. The lattice structure of the carbon steel frame for effective load distribution while reflecting the limiting factors was determined by using a structural analysis simulation. In addition, we tried to compare the manufacturing cost indirectly by the weight of the carbon steel frame and the number of welding points. Considering that the analytical result and the cost aspect of the stress and deformation were small at the given load among the considered shapes, the composite manhole lid with the hexagonal carbon steel frame lattice shape could be adopted into the proper design. This is 42% less in weight than conventional manhole lids, but the maximum stress or deformation is kept at the same level as existing iron lids.
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