Precast segmental piers: testing, modeling and seismic assessment of an emulative connection based on a grouted central tenon

Liu, Zhao; Lei, Haipeng; Tong, Teng; Wu, Suiwen; Gan, Lu

doi:10.1007/s10518-022-01335-w

Cited by 8 publications

(2 citation statements)

References 53 publications

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“…Among them, grouted splice sleeves (GSS) are particularly notable and extensively employed, attributed to their generous construction tolerance and dependable one-to-one energy-dissipating rebar connections [18]. Significant experimental research focusing on precast segmental bridge piers employing grouted sleeve connections has been conducted within the academic community.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Static Cyclic Tests of Precast Two-Column Bent Connected with Both Grouted Splice Sleeves and Grouted Central Tenon

Zhuo,

Tong,

et al. 2023

Applied Sciences

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Owing to the advantages of accelerated construction, reduced traffic disturbance, and enhanced quality control, precast segmental two-column bents are extensively utilized in urban and highway bridges, particularly in areas of low-to-medium seismicity. However, the application of this technique in high-seismicity regions is limited owing to insufficient knowledge about the seismic performance of such precast bents. To address this, the present study investigates the seismic performance of precast segmental two-column bents, focusing on the connection of “grouted splice sleeves and grouted central tenon”, namely the proposed GSS-GCT connection. For this purpose, three large-scale two-column bent specimens were fabricated and subjected to quasi-static cyclic tests: one cast-in-place bent, one precast two-column bent with conventional grouted splice sleeves, and another with the GSS-GCT connection. The benefits of the GSS-GCT connection under high seismic activities were demonstrated regarding lateral load-carrying capacity, displacement ductility, energy dissipation capacity, and residual displacement. Moreover, five levels of damage states were qualitatively and quantitatively divided based on experimental observation, which can be evaluated with lateral displacements. Furthermore, seismic assessments of the two-column bents were obtained using the capacity spectrum method. The proposed GSS-GCT connection could significantly improve the seismic performance of precast segmental two-column bents under high-level earthquakes.

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Section: Introductionmentioning

confidence: 99%

Quasi-Static Cyclic Tests of Precast Two-Column Bent Connected with Both Grouted Splice Sleeves and Grouted Central Tenon

Zhuo,

Tong,

et al. 2023

Applied Sciences

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“…In literature, there are three schools of thought for applying the precast concrete technology to RC bridge piers. The first school developed precast concrete piers that emulate the lateral behavior of traditional RC piers (Ameli and Pantelides, 2016; Haraldsson et al, 2013; Liu et al, 2022; Qu et al, 2018; Tazarv and Saiidi, 2016). 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.…”

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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Experimental investigation on plastic hinge length of RC round-ended hollow columns with a variable section

Shao

Wang

et al. 2023

Engineering Structures

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Precast segmental piers: testing, modeling and seismic assessment of an emulative connection based on a grouted central tenon

Cited by 8 publications

References 53 publications

Quasi-Static Cyclic Tests of Precast Two-Column Bent Connected with Both Grouted Splice Sleeves and Grouted Central Tenon

Quasi-Static Cyclic Tests of Precast Two-Column Bent Connected with Both Grouted Splice Sleeves and Grouted Central Tenon

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

Experimental investigation on plastic hinge length of RC round-ended hollow columns with a variable section

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