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2025 Vol.38, Issue 4

Research Paper

An Analytical Study for Determining Steel Box Connector’s Dimensions for PC Wall Connection

PC벽체 연결을 위한 철물박스 연결재의 제원 결정에 대한 해석적 연구

Seong-Jun Park1
,
Hyeoung-Deok Lee2
,
Kyu-Woong Bae3
,
Jiho Moon4*
박 성준1
,
이 형덕2
,
배 규웅3
,
문 지호4*
1Master’s course, Department of Integrated Energy and Infra System, Kangwon National University, Chuncheon, 24341, Korea
2Post-doctoral researcher, Department of Civil Engineering, Kangwon National University, Chuncheon, 24341,Korea
3CEO, TU KST Co., Ltd., Goyang, 10223, Korea
4Associate Professor, Department of Civil Engineering, Kangwon National University, Chuncheon, 24341, Korea
1강원대학교 에너지･인프라융합학과 석사과정
2강원대학교 건축･토목･환경공학부 박사후 연구원
3(주)티유 케이스트 대표
4강원대학교 건축･토목･환경공학부 부교수
*Corresponding Author
31 August 2025. pp. 209-218
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Abstract

The off-site construction (OSC) method, which involves the off-site prefabrication of structural components in a factory, followed by transportation and subsequent assembly on-site, has been increasingly applied in the construction industry. Ensuring that the connections between prefabricated components achieve structural performance comparable to that of conventional continuous structures is essential. In the case of precast (PC) wall connections, particular attention must be given to ensuring adequate stiffness and strength at the joints. Various techniques are employed for connecting PC walls, and recently, a new type of mechanical connection featuring a steel box connector has been developed. This study aimed to determine the proper dimensions for the proposed steel box connector and to assess its structural performance analytically. First, the mechanical connection requirements outlined in the design standards were examined. Following this, a finite element model of the proposed steel box connector was developed, and parametric studies were conducted to determine the optimal dimensions. Finally, a structural analysis was performed on the PC wall incorporating the selected steel box connector dimensions to assess its structural performance.

Keywords
OSC (off-site construction)
PC (precast) wall
mechanical connection of reinforcing bar
connection for PC member
steel box connector

공장에서 부재를 선제작하고 현장으로 운송하여 조립하는 OSC (Off-Site Construction) 공법은 최근 건설 산업에서 점차 활발히 적용되고 있다. 선제작 부재간의 연결부는 기존 연속 구조물과 유사한 수준의 구조성능을 발휘하여야 한다. 예를 들어 PC 벽체 연결의 경우 벽체를 연결하는 접합부에서 충분한 강성과 강도가 확보되어야 한다. PC 벽체간 연결은 다양한 형태가 존재하며 최근 새로운 형식의 기계적이음 철물박스 연결재가 개발되었다. 본 연구는 이러한 제안된 철물박스 연결재에 적합한 제원을 결정하고 구조성능을 해석적으로 평가하였다. 이를 위하여 먼저 설계기준에 명시된 기계적이음의 요구조건에 대하여 조사하였다. 그리고 제안된 철물박스 연결재의 유한요소모델을 정립하고 앞서 조사한 기계적이음의 요구조건을 만족하는 제안된 철물박스 연결재의 주요 제원을 변수로 변수해석을 수행하여 제안된 철물박스 연결재의 제원을 결정하였다. 이후 결정된 제원을 적용한 PC 벽체에 대하여 구조해석을 수행하여 이의 구조성능을 평가하였다.

키워드
OSC (Off-Site Construction)
PC 벽체
철근의 기계적이음
PC 부재 연결부
철물박스 연결재
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Information
  • Publisher :Computational Structural Engineering Institute of Korea
  • Publisher(Ko) :한국전산구조공학회
  • Journal Title :Journal of the Computational Structural Engineering Institute of Korea
  • Journal Title(Ko) :한국전산구조공학회 논문집
  • Volume : 38
  • No :4
  • Pages :209-218
  • Received Date : 2025-02-11
  • Revised Date : 2025-04-08
  • Accepted Date : 2025-04-11
  • DOI :https://doi.org/10.7734/COSEIK.2025.38.4.209
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