Journal of Korean Association for Spatial Structures (한국공간구조학회논문집)

Korean Association for Spatial Structures (한국공간구조학회)
권호 표지
DOI QR코드

DOI QR Code

An Experimental Study on Flexural Performance of Precast Concrete Modular Beam Systems

프리캐스트 콘크리트 모듈러 보 시스템의 휨 성능에 대한 실험적 연구

  • Received : 2021.08.03
  • Accepted : 2021.08.17
  • Published : 2021.09.15
Download PDF
⟨ Previous Next ⟩

Abstract

Precast concrete (PC) modules have been increased its use in modular buildings due to their better seismic performance than steel modules. The main issue of the PC module is to ensure structural performance with appropriate connection methods. This study proposed a PC modular beam system for simple construction and improved structural and splicing performance. This modular system consisted of modules with steel plates inserted, and it is easy to construct by bolted connection. The steel plates play the role of tensile rebar and stirrup, which has the advantage of structural performance. The structural performance of the proposed PC modular beam system was evaluated by flexural test on one reinforced concrete (RC) beam specimen consisting of a monolithic, and two PC specimens with the proposed PC modular beam system. The results demonstrated that the proposed PC modular beam system achieved approximately 86% of the structural performance compared to the RC monolithic specimen, with similar ductility of approximately 1.06 fold greater.

Keywords

Acknowledgement

본 연구는 교과부 한국연구재단의 지원에 의해 수행된 2021년도 기초연구실사업 (NRF-2019R1A4A1028116) 결과의 일부입니다.

References

  1. Innella, F., Arashpour, M., & Bai, Y., "Lean methodologies and techniques for modular construction: Chronological and critical review", Journal of Construction Engineering and Management, Vol.145, No.12, 2019
  2. Thai, H.T., Ngo, T., & Uy, B., "A review on modular construction for high-rise buildings", Structures, Vol.28, pp.1265-1290, 2020 https://doi.org/10.1016/j.istruc.2020.09.070
  3. Psycharis, I.N., Kalyviotis, I.M., & Mouzakis, H.P., "Experimental investigation of the response of precast concrete cladding panels with integrated connections under monotonic and cyclic loading", Engineering Structures, Vol.159, pp.75~88, 2018 https://doi.org/10.1016/j.engstruct.2017.12.036
  4. Hwang, J.H., Choi, S.H., Lee, D.H., Kim, K.S., & Woo, W.T., "Reversed Cyclic Loading Test of Post-Tensioned Precast Concrete Beam-Column Connections with 2400MPa Prestressing Strands", Journal of The Architectural Institute of Korea Structure & Construction, Vol.33, No.12, pp.45~52, 2017 https://doi.org/10.5659/JAIK_SC.2017.33.12.45
  5. Kuang, Z. & Zheng, G., "Computational and experimental mechanical modelling of a composite grouted splice sleeve connector system", Materials, Vol.11, No.2, 2018
  6. Kim, M. S., & Lee, Y. H., "Structural behavior of spliced post-tensioned girders with precast box segments", International Journal of Concrete Structures and Materials, Vol. 13, No.1, pp. 1~11, 2019 https://doi.org/10.1186/s40069-018-0311-2
  7. KS F 2405, Korea Standard, Korean Agency for Technology and Standards, 2017
  8. KS L 5105, Korea Standard, Korean Agency for Technology and Standards, 2017
  9. KS B 0802, Korea Standard, Korean Agency for Technology and Standards, 2013
  10. Kankeri, P., & Prakash, S.S., "Experimental evaluation of bonded overlay and NSM GFRP bar strengthening on flexural behavior of precast prestressed hollow core slabs", Engineering Structures, Vol.120, pp.49~57, 2016 https://doi.org/10.1016/j.engstruct.2016.04.033
  11. Breccolotti, M., Gentile, S., Tommasini, M., Materazzi, A.L., BonFigli, M.F., Pasqualini, B., Colone, V., & Gianesini, M., "Beam-column joints in continuous RC frames: Comparison between cast-in-situ and precast solutions", Engineering Structures, Vol.127, pp.129~144, 2016 https://doi.org/10.1016/j.engstruct.2016.08.018
  12. ACI 318-19, ACI Committee 318, American Concrete Institute, 2019
  13. Dolan, C. W., "Flexural design of prestressed concrete beams using FRP tendons", Prestressed Concrete Institute Journal, Vol. 46, No.2, pp.76~87, 2001
  14. Sheikh, S.A. & Khoury, S.S, "A performance-based approach for the design of confining in tie columns", ACI Structural Journal, Vol.94, No.4, pp.421~431, 1997