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Revit 기반 구조 모델링의 철근 배근을 위한 Dynamo 활용 방안 연구
강진욱(Jin-Ook Kang),김재흥(Jae-Heung Kim),박준수(Jun-Soo Park),윤희택(Hee-Taek Yoon) 한국산학기술학회 2022 한국산학기술학회논문지 Vol.23 No.11
첨단기술의 도입을 통한 생산성 향상을 위한 노력은 건설산업 전반에 걸쳐 지속적으로 추진되어져 왔다. 이러한 노력의 일환으로 Building Infomation Modeling(이하 BIM) 기술은 다양한 건설분야 실무에 적용되고 있다. 하지만 대부분 골조 모델링에 국한되어 있으며 BIM을 활용한 철근 모델링은 반복적인 수작업으로 인한 시간소요, BIM Tool에서 자체적으로 제공하는 철근 모델링 기능의 한계 등의 이유로 실무 적용이 제한되고 있다. 이에 본 연구는 파라메트릭 모델링에 비주얼 프로그래밍(Dynamo)을 결합·활용해 철근 배근 업무를 자동화하여 설계 실무자들의 BIM에 대한 접근성과 업무 효율성을 높이는 방법을 고안하였다. 이를 위해 토목 철근 콘크리트 구조물 중 비교적 형상이 복잡한 L형 옹벽을 Dynamo 알고리즘의 개발 대상으로 선정하고, 다양한 매개변수를 선정한 후 BIM 파라메트릭 모델링을 진행하였다. 또한, Dynamo와 Excel을 활용하여 BIM 객체에 철근 배근을 자동화하는 알고리즘을 구축하였다. 이를 통해 기존의 상용 BIM Tool에서 제공하는 기능을 이용하였을 때보다 작업시간을 현저히 절감하였고, 알고리즘의 일부만 수정하면 기둥, 보, 기초 등 다양한 부재나 유사 프로젝트에서 해당 알고리즘을 재사용하여 BIM 기반 철근 배근 모델링 업무의 생산성에 크게 기여할 수 있다. Efforts to improve construction productivity by adapting advanced technologies have been made continuously throughout the construction industry. Building information modeling (BIM) is being applied in various construction fields. However, BIM application is limited mostly to structural frame modeling. In addition, the BIM tool has not been widely used in practice owing to its time-consuming and repetitive work and its limited rebar modeling functions. Therefore, this study proposes a method to increase engineers accessibility and work efficiency in utilizing BIM by automating the rebar placement tasks via parametric modeling and visual programming (Dynamo). An L-shaped retaining wall, which has a relatively complex shape among the civil reinforced structures, was selected as the target of algorithm development and conducted the parametric modeling after selecting various parameters. In addition, an algorithm for the rebar arrangement automation on the BIM object was constructed using Dynamo and Excel. The results showed that working hours were lower than those taken using the rebar modeling function of the existing commercial BIM tools. Moreover, after modifying only a part of the algorithm, reusing these algorithms in various components or similar projects can contribute to the productivity of BIM-based rebar arrangement modeling tasks.
구속효과를 고려한 내부 구속 중공 철근콘크리트의 비선형 재료 모델 개발
한택희(Han Taek Hee),윤기용(Yoon Ki-Yong),이창수(Lee Chang-Soo),강진욱(Kang Jin-Ook),이명섭(Lee Myeoung-Sub),강영종(Kang Young-Jong) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
When concrete is confined triaxially, its strength and toughness are enhanced. Hoop reinforcements or transverse reinforcements laterally confine concrete in a R.C member. But biaxially confined concrete, such as concrete in a hollow R.C member, does not have much enhanced strength and toughness. In this study, a new-type member, which is a hollow R.C member named as an ICH(Internally Confined Hollow) R.C member, was developed to overcome the low ductility of the hollow member and the low strength of the hollow R.C member. A material nonlinear model for the concrete in an ICH R.C member was developed and coded as a computer program based on Mander"s concrete model. Analysis results were verified with experimental results and the developed analysis model showed reasonable and accurate results.
한택희(Han Taek Hee),염응준(Youm Eung-Jun),윤기용(Yoon Ki-Yong),강진욱(Kang Jin-Ook),이명섭(Lee Myeoung-Sub),강영종(Kang Young-Jong) 한국철도학회 2006 한국철도학회 학술발표대회논문집 Vol.- No.-
Concrete in a R.C column has enhanced strength and ductility because it is confined by transverse reinforcements. But R.C columns are designed based on linear analyses by stress block method without the confining effect or the nonlinearity of the concrete. These make the significantly difference between the analysis results and the experimental results. And also ICH R.C column(Internally Confined Hollow R.C column), a new-typed column, has enhanced moment capacity and axial strength by a settled steel tube when it is compared with a hollow R.C column. Thus in this study, nonlinear P-M interaction models for a general R.C column and an ICH R.C column were developed considering the confining effect on the concrete in a column. With the developed model, parametric studies were performed and the developed column models showed reasonable and accurate results.