Test for Influence of Socket Connection Structure on Dynamic Response of Prefabricated Pier under Vehicle Collision

Han, Yan; Zhihao, Liu; Wang, Longlong

doi:10.1007/s12205-021-2320-y

Cited by 9 publications

(3 citation statements)

References 18 publications

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“…[1][2][3] Nowadays, there are three commonly used connection methods of accelerated bridge construction technology, namely, lap-spliced connection, [4][5][6] sleeve connection, [7][8][9] and socket connection. [10][11][12][13][14][15] The lap-spliced connection as a wet joint has been widely used in practical engineering. Wang et al 4 investigated the seismic performance of the precast piers with pocket connections using noncontact lap-spliced bars, and found that the bar bond length of five times the diameter could well guarantee the anchorage performance.…”

Section: Introductionmentioning

confidence: 99%

“…Accelerated bridge construction, with innovative connection details and construction technologies, has been extensively investigated and put into practical application for years 1–3 . Nowadays, there are three commonly used connection methods of accelerated bridge construction technology, namely, lap‐spliced connection, 4–6 sleeve connection, 7–9 and socket connection 10–15 …”

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%

Section: Introductionmentioning

confidence: 99%

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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“…In this technique, the bridge column is prefabricated in a factory and then assembled on-site with the footing and the cap-beam through a seismic connection. Many seismic connections between columns and cap-beams and between column and footing have been studied (i.e., pocket connection (Stephens et al, 2014), socket connection (Abdelkarim et al, 2017; Han, et al, 2021; Jin, et al, 2022; Yang & Okumus, 2021), bar coupler connection (Qu et al, 2021; Wang et al, 2018), grouted duct connection (Tazarv and Saiidi, 2016; Zhanghua et al, 2020; Zhanghua et al, 2021), ultra-high-performance concrete UHPC connection (Geng et al, 2022; Xu et al, 2021, etc.). Under lateral loads, the performance of these piers is comparable to that of traditional monolithic RC piers in terms of high energy dissipation capacity, large residual displacement, and serious damage in the plastic hinge region that is difficult to repair or irreparable (Li et al, 2018; Wang et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Precast bridge piers: Construction techniques, structural systems, and seismic response

Fahmy

Moussa

2022

Advances in Structural Engineering

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The aim of this paper is to make a comprehensive evaluation of existing works on precast bridge piers, considering several aspects including construction techniques, structural systems, and seismic response. The general classification of the construction techniques refers to five different construction systems, which can be fully precast (post-tensioned system, pre-tensioned system, non-prestressed system) or partially precast techniques (post-tensioned system, non-prestressed system). The details of columns, column-footing connection, and column-beam connection are carefully studied to provide a unified classification of the existing construction techniques. According to the available experimental research, the failure modes and seismic resisting mechanisms of the classified construction techniques are fully addressed. In the light of a new proposed mechanical model, the seismic response of 50 experimentally tested precast bridge piers (covering the five construction techniques) is evaluated to ensure the required resiliency under anticipated seismic hazards. The evaluation of the seismic response of the studied systems indicated that the fully precast post-tensioned system is a promising construction technique, which can ensure the resilience performance of bridge piers. Finally, performance levels of the five construction systems were extracted in view of the possibility to realize robust, redundant, and recoverable structure systems that can be a motivation for application in the construction of modern sustainable cities.

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Calculation of Vehicle Impact Force on Socket Prefabricated Bridge Piers

Han

Huang²,

2023

KSCE J Civ Eng

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Test for Influence of Socket Connection Structure on Dynamic Response of Prefabricated Pier under Vehicle Collision

Cited by 9 publications

References 18 publications

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

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

Precast bridge piers: Construction techniques, structural systems, and seismic response

Calculation of Vehicle Impact Force on Socket Prefabricated Bridge Piers

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