Experimental Research on the Eccentric Compression Performance of C-T Connection Joints in CFST Composite Segments

GUO Liang; MA Yinke; CHEN Shijing; XIANG Xu; JIN Peiyun; YANG Yong

doi:10.3724/j.gyjzG25042303

Volume 55 Issue 6

Jun. 2025

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GUO Liang, MA Yinke, CHEN Shijing, XIANG Xu, JIN Peiyun, YANG Yong. Experimental Research on the Eccentric Compression Performance of C-T Connection Joints in CFST Composite Segments[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(6): 106-112. doi: 10.3724/j.gyjzG25042303

Citation:

GUO Liang, MA Yinke, CHEN Shijing, XIANG Xu, JIN Peiyun, YANG Yong. Experimental Research on the Eccentric Compression Performance of C-T Connection Joints in CFST Composite Segments[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(6): 106-112. doi: 10.3724/j.gyjzG25042303

Citation:

GUO Liang, MA Yinke, CHEN Shijing, XIANG Xu, JIN Peiyun, YANG Yong. Experimental Research on the Eccentric Compression Performance of C-T Connection Joints in CFST Composite Segments[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(6): 106-112. doi: 10.3724/j.gyjzG25042303

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Experimental Research on the Eccentric Compression Performance of C-T Connection Joints in CFST Composite Segments

doi: 10.3724/j.gyjzG25042303

1. Shaanxi Railway and Underground Traffic Engineering Key Laboratory (FSDI), Xi'an 710043, China;
2. China Railway First Survey and Design Institute Group Co., Ltd., Xi'an 710043, China;
3. School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China

Received Date: 2025-04-23

Abstract

Abstract

The C-T connection joint is applied in the concrete-filled steel tube（CFST） composite segment to achieve rapid connection of the segment. In order to study the mechanical properties and design calculation methods of the C-T connection joint in CFST composite segments， experimental research was conducted on the eccentric compression performance of six C-T connection joints， including three single-row C-T connection joints and three double-row C-T connection joints. The study primarily investigated the influence of segment joint forms and key eccentricity parameters on the eccentric compression performance of the joints.The experimental study focused on the failure morphology， failure mode， stress-strain development， bearing capacity， deformation capacity， and other mechanical properties of the specimens under different parameters. The results showed that under eccentric loading， the C-T connection joints exhibited favorable stress performance. The specimens experienced typical eccentric compression failure， and their ultimate bearing capacity gradually decreased as eccentricity increased. The C-T connection connection joints exhibited excellent bearing capacity and stiffness， making them suitable for on-site rapid assembly of CFST composite segments.
- CFST segments,
- quick-connected joint,
- C-T connection joint,
- eccentric compression performance,
- experimental research

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References(19)

References

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