Advances in concrete construction

  • 제19권1호
  • /
  • Pages.31-42
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  • 2025
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  • 2287-5301(pISSN)
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  • 2287-531X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Mechanical behavior of corrugated grouted sleeve splice for precast concrete structures under cyclic loading

  • Muwang Wei (School of Civil Engineering and Architecture, Wuyi University) ;
  • Yukang Peng (School of Civil Engineering and Architecture, Wuyi University) ;
  • Huawei Li (School of Civil Engineering and Architecture, Wuyi University) ;
  • Boren Xiao (School of Civil Engineering and Architecture, Wuyi University)
  • 투고 : 2023.08.30
  • 심사 : 2025.01.03
  • 발행 : 2025.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

To improve the splicing behavior of steel rebars in precast structures, this paper presents a novel corrugated grouted sleeve (CGS) fabricated at low cost from a rolling seamless pipe. To investigate the connection characteristics of splicing rebars in prefabricated structures under lateral loads, 18 specimens of 45# seamless pipe with various parameters were prepared and tested under cyclic loading. In general, the proposed connector system achieved high performance of the splicing rebars between precast components, ensuring sufficient integrity of the precast construction. Because the corrugated configuration provides sufficient anchoring strength for the steel rebars, the typical failure modes of the specimens under cyclic loading were steel rebar fractures, as desired. Moreover, cracks in the mortar were almost absent except at the ends, confirming higher performance than traditional sleeves. Finally, a method is proposed for capturing the confinement stress in the CGS for splicing steel rebars. The model results generally agreed with the test results. Therefore, it is believed that the proposed CGS system can be a alternative for splicing rebars in the prefabricated constructions.

키워드

과제정보

The authors gratefully acknowledge the financial support provided by the Natural Science Foundation of Fujian Province (2022J011195), Resource chemical industry and technology Foundation of Nanping (N2021Z002), Undergraduate innovation and entrepreneurship project (202410397015).

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