Steel and Composite Structures

  • 제23권4호
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  • Pages.453-464
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  • 2017
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Connections between RC beam and square tubed-RC column under axial compression: Experiments

  • Zhou, Xu-Hong (Key Laboratory of New Technology for Construction of Cities in Mountain Area (Ministry of Education), Chongqing University) ;
  • Li, Bin-Yang (Key Laboratory of New Technology for Construction of Cities in Mountain Area (Ministry of Education), Chongqing University) ;
  • Gan, Dan (Key Laboratory of New Technology for Construction of Cities in Mountain Area (Ministry of Education), Chongqing University) ;
  • Liu, Jie-Peng (Key Laboratory of New Technology for Construction of Cities in Mountain Area (Ministry of Education), Chongqing University) ;
  • Chen, Y. Frank (Department of Civil Engineering, The Pennsylvania State University)
  • 투고 : 2016.08.03
  • 심사 : 2017.01.18
  • 발행 : 2017.03.20
⟨ 이전 논문 다음 논문 ⟩

초록

The square tubed-reinforced concrete (TRC) column is a kind of special concrete-filled steel tube (CFST) columns, in which the outer thin-walled steel tube does not pass through the beam-column joint, so that the longitudinal steel reinforcing bars in the RC beam are continuous through the connection zone. However, there is a possible decrease of the axial bearing capacity at the TRC column to RC beam connection due to the discontinuity of the column tube, which is a concern to engineers. 24 connections and 7 square TRC columns were tested under axial compression. The primary parameters considered in the tests are: (1) connection location (corner, exterior and interior); (2) dimensions of RC beam cross section; (3) RC beam type (with or without horizontal haunches); (4) tube type (with or without stiffening ribs). The test results show that all specimens have relatively high load-carrying capacity and satisfactory ductility. With a proper design, the connections exhibit higher axial resistance and better ductility performance than the TRC column. The feasibility of this type of connections is verified.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Central Universities

참고문헌

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피인용 문헌

  1. Experimental Behavior of Square Tubed-Reinforced-Concrete Column to RC Beam Joints with Internal Diaphragms under Cyclic Loading vol.763, pp.1662-9795, 2018, https://doi.org/10.4028/www.scientific.net/KEM.763.779
  2. Strengthening of deficient steel SHS columns under axial compressive loads using CFRP vol.30, pp.1, 2017, https://doi.org/10.12989/scs.2019.30.1.069
  3. Local compressive behavior of joint core reinforced with ring beam for connection of polyvinyl chloride fiber‐reinforced polymer confined concrete column and reinforced concrete beam vol.21, pp.4, 2017, https://doi.org/10.1002/suco.201900312
  4. Experimental study on low-strength concrete joint core strengthened with steel meshes for connecting PFCC column and RC beam vol.24, pp.4, 2021, https://doi.org/10.1177/1369433220969028