한국건축시공학회지 (Journal of the Korea Institute of Building Construction)

  • 제21권4호
  • /
  • Pages.293-303
  • /
  • 2021
  • /
  • 1598-2033(pISSN)
  • /
  • 2233-5706(eISSN)
한국건축시공학회 (The Korean Institute of Building Construction)
권호 표지
DOI QR코드

DOI QR Code

고무튜브 몰드 프리캐스트 콘크리트 유공 슬래브 개발에 관한 실험적 연구

Experimental Study on the Development of Void Precast Concrete Slab using Rubber Tube Mold for Inner Core

  • Bae, Kyu-Woong (Department of Architecture-Urban Engineering, Korea Institute of Civil Engineering & Building Technology) ;
  • Hong, Sung-Yub (Technology Development Team, Camus E&C)
  • 투고 : 2021.06.18
  • 심사 : 2021.07.28
  • 발행 : 2021.08.20
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

국내 PC공장은 PC 유공 슬래브를 생산하기 위해 자동화 설비를 도입하거나 매입물 삽입을 통해 중공 단면을 구현하지만 PC공장의 과다한 초기투자비용이 생산원가의 증가라는 주요 원인으로 작용하기에 다른 대안이 필요한 상황이다. 따라서 본 연구에서는 PC 유공 슬래브 부재 생산시 고무 튜브를 내부 속빈 공간을 형성하는 거푸집으로 사용함으로써 다양한 중공 형상의 성형 및 대단면화, 초경량화, 신속생산 대응 가능을 통한 생산성 확보에 기여하고자 한다.

The void PC slab has a structurally reasonable cross-section by forming the hollow section of the neutral axis that is unnecessary for bending behavior. Domestic PC factories have introduced automation equipment to produce hollow PC slabs, and are achieving hollow sections through inserts. However, since the excessive initial investment cost of the PC factory is the main factor in the increase in production cost, other alternatives are needed. Therefore, in this study, when producing hollow PC slab members, by using a rubber tube as a formwork to form an internal hollow space, it is intended to contribute to securing productivity through molding various hollow shapes, making it larger, lightweight, and enabling rapid production. To implement a hollow PC slab using a rubber tube mold, the shape of a hollow cross-section in which the tube is combined was implemented by considering the shape of the rubber tube first. In addition, to secure the concrete quality of the hollow part, the finish properties of the rubber tube mold and concrete were evaluated, and the hollow PC production process was established.

키워드

과제정보

This thesis was conducted jointly with Camus E&C as part of the small and medium-sized enterprise support project of the Korea Institute of Civil Engineering & Building Technology.

참고문헌

  1. Hong SY, OH SY. Survey on precast concrete construction in korea. Academic Conference Journal of the Korea Concrete Institute. 2018 Nov 7-9; Gangwon-do province, Korea. Seoull (Korea): Korea concrete institute; 2018. p. 233-4.
  2. Hong SY, OH SY. Economic evaluation of precast concrete method considering construction period. Academic Conference Journal of the Korea Concrete Institute. 2018 Nov 7-9; Gangwon-do province, Korea. Seoull (Korea): Korea concrete institute; 2018. p. 707-8.
  3. Lee SS, Hong SY, Park KS, Bae KW. Evaluation of shear strength of composite hollow core slab with concrete topping. Journal of the Architectural Institute of Korea Structure & Construction. 2013 Jul;29(7):47-54. https://doi.org/10.5659/JAIK_SC.2013.29.7.47
  4. Park KS, Lee SS, Choi YC. Evaluation on the flexural performance for connections with the inverted rib-plus precast concrete slab to PC beam. Journal of the Architectural Institute of Korea Structure & Construction. 2011 May;27(5):69-76.
  5. CPI Magazine. Precast Concrete Elements, Concrete Plant International. United Kingdom (London): CPI; 2016. p. 2-6
  6. Park HG, Lee HJ, Choi IR, Kim SB, Park SS. Concrete-filled steel tube columns encased with thin precast concrete. Journal of Structural Engineering. 2015 Jul;141(12):04015056. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001303
  7. Korea Precast Prestressed Concrete Association. Precast concrete, Korea Society of Architectural Hybrid System. Seoul (Korea): Kimoondang; 2007. p. 121-2.
  8. Kim CS, Lee HJ, Park CK, Hwang HJ, Park HG. Cyclic loading test for concrete-filled hollow precast concrete columns produced by using a new fabrication method. Journal of Structural Engineering. 2016 Nov;143(4): 04016212. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001703