Review on Seismic Behavior of Precast Bridge Column with Socket Connections

He, Zhenyu; Zhong, Tieyi; Fu, Guoqiang; Li, Hao; Wang, Wei

doi:10.1088/1742-6596/1838/1/012043

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…21,22 Compared to other connections, the socket connection requires a lower construction accuracy and is convenient for construction. 23 The socket connection is a method to achieve the connection between the precast members by inserting the precast member into the socket left in the footing or other members. According to the structural details of the socket connection, the embedment length is one of the critical parameters that could significantly influence the seismic performance of the socket connections.…”

Section: Introductionmentioning

confidence: 99%

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Experimental investigation of seismic behavior of precast pier‐footing socket connection with different design parameters

Yang,

Guo,

Zeng

et al. 2024

Structural Concrete

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Accelerated bridge construction, with innovative connection details and construction technologies, has been extensively investigated and put into practical application for years. Nowadays, there are three commonly used connection methods of accelerated bridge construction technology, namely, lap‐spliced connection, sleeve connection, and socket connection. Due to the convenience of construction and lower requirements of construction accuracy, the socket connection is more suitable for reconstruction and expansion projects of traffic infrastructure, which could minimize the impact on traffic and accelerate construction progress. According to the structural characteristics of the socket connection, there are some design parameters that may significantly affect the seismic resistance of the structure, such as socket embedment length, fabrication of the shear key, and grouting material strength. To fully study the influence of different design parameters on structural performance, an experiment was carried out to investigate the seismic behavior of the precast pier‐footing socket connections with different design parameters. Five 1:2 scale reinforced concrete precast pier‐footing socket connection specimens with different design parameters were designed and tested under cyclically reversed horizontal loads. The development of hysteresis features, failure mode, load‐bearing capacity, stiffness degradation, structural ductility, energy dissipation capacity, and residual drift are analyzed to reveal the influence of the different design parameters on the seismic behavior of the precast pier‐footing socket connection. The seismic behavior of the precast pier‐footing socket connection was significantly influenced by the embedment length especially when the embedment length was less than 1.0bc. When the embedment length was 0.5bc, the failure mode changed from bending damage at the bottom of the precast pier to the anchorage failure of the precast pier‐footing socket connection. When the embedment length was 1.5bc, the fabrication of the shear key had limited improvement on the seismic performance of the specimen, while reducing the ductility of the specimen. When the embedment length was 1.0bc, the grouting material with a strength grade of C60 could be used in the socket connection between the precast pier and footing. The research presented in this paper provides some design suggestions and a technical basis for evaluating the seismic behavior of precast pier‐footing structures with socket connection.

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Section: Introductionmentioning

confidence: 99%

“…Compared to other connections, the socket connection requires a lower construction accuracy and is convenient for construction 23 . The socket connection is a method to achieve the connection between the precast members by inserting the precast member into the socket left in the footing or other members.…”

Section: Introductionmentioning

confidence: 99%