Experimental and Numerical Study of Grout Effectiveness and Force-Transfer Mechanism in Socket Connections
This study aims to investigate the effectiveness of grout and the mechanism of force transfer in socket connections. In doing so, it proposes a new transfer mode called integral transfer mode (ITM), as opposed to the conventional separate transfer mode (STM). The proposed ITM suggests that, in a reinforced concrete socket connection, if there is a strong bond between the column, grouting material, and receiving member, the socket connection will function as an integral structure, deforming together as a whole rather than as separate components. Consequently, the grouting material does not need to provide a significant lateral bearing force, and the interface shear stresses become the key focus in designing a socket connection. To explore this concept, quasi-static tests and numerical analyses using solid elements were conducted on three half-scale specimens with varying grout strengths. The results demonstrated that the performance of specimens with normal-strength grout was comparable to that of the specimen with high-strength grout. And the proposed ITM was better than STM at predicting failure modes, force–displacement relationships, the stress states of reinforcements, and grout stresses.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
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Supplemental Notes:
- © 2024 American Society of Civil Engineers.
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Authors:
- Zeng, Zeng
- Wang, Zhigang
- Wang, Zhiqiang
- Xu, Yan
- Publication Date: 2024-4
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: 04024012
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Serial:
- Journal of Bridge Engineering
- Volume: 29
- Issue Number: 4
- Publisher: American Society of Civil Engineers
- ISSN: 1084-0702
- Serial URL: http://ojps.aip.org/beo
Subject/Index Terms
- TRT Terms: Columns; Grout; High strength materials; Load transfer; Reinforced concrete bridges; Structural connection
- Subject Areas: Bridges and other structures; Highways; Materials;
Filing Info
- Accession Number: 01912673
- Record Type: Publication
- Files: TRIS, ASCE
- Created Date: Mar 20 2024 5:10PM