[논문]슬래브 철근 물량 산출 자동화 알고리즘 개발

김수환; 김선국; 서상욱; 김상철

doi:10.6106/kjcem.2023.24.5.052

슬래브 철근 물량 산출 자동화 알고리즘 개발
Development of an Algorithm for Automatic Quantity Take-off of Slab Rebar 원문보기

한국건설관리학회논문집 = Korean journal of construction engineering and management, v.24 no.5, 2023년, pp.52 - 62

김수환 (경희대학교 건축공학과) , 김선국 (경희대학교 건축공학과) , 서상욱 (가천대학교 건축공학과) , 김상철 (경희대학교 건축공학과)

초록
AI-Helper

본 연구의 목적은 정착 길이, 표준 후크 및 이음 길이와 같은 관련 규정을 준수하면서 슬래브 철근의 정확한 절단 길이를 산출하는 자동화된 알고리즘을 제안하는 것이다. 제안된 알고리즘은 일반적으로 외주를 통해 수작업으로 진행하던 기존 철근 물량 산출 프로세스를 개선하는 것을 목표로 한다. 입찰 단계부터 정확한 철근 수량 데이터를 BBS(Bar Bending Schedule) 수준으로 제공함으로써 물량 산출의 불확실성을 제거하고 외부 의존도를 낮출 수 있다. 또한, 알고리즘을 통해 정확한 물량을 조기에 산출하는 경우 건설사는 경쟁력 있고 최적화된 입찰을 미리 준비할 수 있어 계약 협상 시 이익률을 높일 수 있다. 제안된 알고리즘은 견적, 예산, BBS 생성 등 다양한 프로세스에서 중복되는 업무를 간소화할 뿐만 아니라 계약 후 구조 도면 변경에도 유연하게 대처할 수 있다. 특히, 제안된 알고리즘을 BIM과 결합하는 경우 시공 초기 단계에서 BIM을 적용할 때 발생하는 기술적 문제를 해결할 수 있으며, REVIT 기반 패밀리 파일로 구축된 알고리즘의 수식과 형상 코드는 실무에서 상당한 시간과 인력 절감에 기여한다.

Abstract ▼ AI-Helper

The objective of this study is to propose an automated algorithm for precise cutting length of slab rebar complying with regulations such as anchorage length, standard hooks, and lapping length. This algorithm aims to improve the traditional manual quantity take-off process typically outsourced by external contractors. By providing accurate rebar quantity data at BBS(Bar Bending Schedule) level from the bidding phase, uncertainty in quantity take-off can be eliminated and reliance on out-sourcing reduced. In addition, the algorithm allows for early determination of precise quantities, enabling construction firms to preapre competitive and optimized bids, leading to increased profit margins during contract negotiations. The proposed algorithm not only streamlines redundant tasks across various processes, including estimating, budgeting, and BBS generation but also offers flexibility in handling post-contract structural drawing changes. In particular, the proposed algorithm, when combined with BIM, can solve the technical problems of using BIM in the early phases of construction, and the algorithm's formulas and shape codes that built as REVIT-based family files, can help saving time and manpower.

주제어

표/그림 (7)

그림 Fig. 1. Slab rebar lay-out
그림 Fig. 2. Flow chart of existing method
표 Table 1. Previous studies about quantity take-off
그림 Fig. 3. Application process of the proposed algorithm
그림 Fig. 4. Continuous rebar though whole span
그림 Fig. 5. Additional rebar layout
표 Table 2. Variables used in the algorithm

참고문헌 (24)

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상세보기
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상세보기
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원문보기 상세보기
Yoon, J., Cho, H., Lee, J., Shin, J., and Kim, E. (2020). "A？Comparison of Quantity Take-Offs of RC Structures？based on BIM." Journal of the Computational Structural？Engineering Institute of Korea, 33(1), pp. 35-44.
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