Structural Behavior of Construction Joints in a Composite Rigid-Frame Bridge

International Journal of Concrete Structures and Materials

Research

Heeyoung Lee¹  Wonseok Chung²  Sanghyeon Cho²  Jungho Choi² 

[1] Department of Civil Engineering, Chosun University, 309-1 Pilmun-Daero, 61453, Dong-Gu, Gwangju, Republic of Korea;Department of Civil Engineering, College of Engineering, Kyung Hee University, 1732 Deokyoung-Daero, Giheung-Gu, 17104, Yongin-Si, Gyeonggi-Do, Republic of Korea;

关键词: Composite rigid-frame bridge;    Composite behavior;    Construction joint;    Anchor;    Finite element analysis;   

DOI  :  10.1186/s40069-023-00614-3

 received in 2022-11-14, accepted in 2023-05-18,  发布年份 2023

来源: Springer

【 摘 要 】

Composite rigid-frame bridges with steel girders have excellent structural performance, but behavioral inconsistency appears at the connection between the steel girder and concrete pier. In addition, composite rigid-frame bridges are challenging to construct owing to the need to connect different materials at the pier. Therefore, this study developed and demonstrated a composite rigid-frame bridge with a construction joint and anchors. The structural performance and composite behavior of the proposed construction joint were investigated by evaluating a direct connection between the girder and concrete prior to casting (Joint A), a plain construction joint (Joint B), and a construction joint with anchors (Joint C). Joints B and C exhibited 16.5% and 46.5% higher ultimate capacities, respectively, than did Joint A. Finite element analysis of Joint C was conducted, and its results were verified against the experimental results. Further, parameter analysis was performed to determine the effects of the steel girder strength and anchor diameter. The results indicated that the proposed construction joint with anchors exhibited excellent structural performance and composite behavior.

【 授权许可】

CC BY   
© The Author(s) 2023

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