Seismic performance of prefabricated concrete columns with grouted sleeve connections, and a deformation-capacity estimation method

Ding, Mengjia; Xu, Weibing; Wang, Jin; Chen, Yanjiang; Du, Xiuli; Fang, Rong

doi:10.1016/j.jobe.2022.104722

Cited by 15 publications

(8 citation statements)

References 24 publications

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“…An improvement in seismic response was witnessed when the connectors' placement was altered or when dowel bars close to the connector were debonded. Similar studies were conducted by (Ding et al 2022), (Xu et al 2022), and (Yang et al 2022), who performed shake table tests and simulations on prefabricated columns with injected sleeve connections.…”

Section: Mechanical Bar Splice Connectionsmentioning

confidence: 79%

Review of accelerated construction of bridge piers - methods and performance

Kenarkoohi,

Hassan

2024

ABEN

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Bridges are an essential part of every road and transportation system, and all countries must build bridges to improve their infrastructure. Accelerated bridge construction (ABC) is an innovative approach that has been noticed in recent years to facilitate and accelerate the process of building, repairing, or replacing bridges. This paper underscores the significance of ABC in bridge construction, focusing on its potential to offer speed, safety, and enhanced longevity for bridge pier. Through a comprehensive exploration of prefabricated elements and systems specific to bridge piers, insights into their applicability, advantages, and limitations are presented. A special section is dedicated to the investigation of pier connections under seismic loads. Furthermore, the review contrasts ABC with traditional construction methodologies, highlighting areas of excellence and potential improvement for ABC.

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Section: Mechanical Bar Splice Connectionsmentioning

confidence: 79%

Review of accelerated construction of bridge piers - methods and performance

Kenarkoohi,

Hassan

2024

ABEN

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“…The results showed that this type of bridge may generate a larger maximum bending moment than the fixed-base bridge under pounding conditions. For prefabricated bridges, the seismic performance of fabricated bridge piers was widely investigated [23][24][25][26], and the recent findings preliminarily verified that the prefabricated piers also had good seismic performance, especially the prefabricated piers connected by grouting sleeves [27][28][29].…”

Section: Introductionmentioning

confidence: 88%

Research on the Pounding Response and Pounding Effect of a Continuous Rigid-Frame Bridge with Fabricated Super-High Piers Connected by Grouting Sleeves

Wang

Huang

et al. 2022

Sustainability

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The dynamic characteristics of a continuous rigid-frame bridge with fabricated super-high piers (CRFB-FSP) connected by grouting sleeves and adjacent continuous beam bridges (AB) are significantly different, and they are prone to pounding under earthquake excitation. At present, the pounding response between the CRFB-FSP and AB is still unclear, and the impact of the pounding on the seismic performance of a CRFB-FSP is still in the exploratory stage. In this study, two 1/20 scaled models of a CRFB-FSP (MB) and a cast-in-place AB were designed and manufactured. Then, according to the research purpose and the output performance of the shaking table, three each of non-long-period (NLP) ground motions and near-fault pulse-type (NFPT) ground motions were selected as the inputs of the excitation shaking table test. The peak ground acceleration (PGA) changes from 0.5 g to 1.5 g. According to the similarity ratio (1/20), the initial gap between the MB and AB was taken as 7 mm (prototype design: 140 mm). Furthermore, the longitudinal pounding response between the CFRB-FSP and AB, as well as its influence on the seismic performance of the CFRB-FSP, was systematically investigated through a shaking table test and finite element analysis (FEA). The results showed that the pounding with the CRFB-FSP easily caused a persistent pounding, which may increase the damage risk of the pier. The peak pounding force under the NFPT ground motion was more significant than under the NLP ground motion, whereas the pounding number under the NFPT ground motion was smaller. The peak pounding force increased with the increase in the initial gap, pounding stiffness, span, and pier height. With and without pounding, the CRFB-FSP reflected higher-order mode participation (HMP) characteristics. After pounding, under the NFPT excitation, the HMP contribution increased significantly compared with that of the without pounding condition, while this effect under the NLP excitation was smaller. The peak displacement of the main beam of the CRFB-FSP increased with the increase in the main beam span, pier height and initial gap. The peak bending moment of the pier bottom increased with the increase in the main beam span and initial gap, however, decreased with the increase in the pier height. Moreover, the peak displacement of the main beam and the peak moment of the pier bottom of the CRFB-FSP both reduced. In contrast, the corresponding seismic response of the AB increased under the same conditions.

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“…The initial method (Li et al. , 2023; Ding et al. , 2022a, b) involves connecting the lower surface of the column to the upper surface of the foundation through face-to-face contact.…”

Section: Grouting Sleeve Connection Prefabricated Column Collapse Jud...mentioning

confidence: 99%

“…The sleeve increases the effective cross-sectional stiffness in the area where it is placed (Zou et al. , 2022; Ding et al. , 2022a, b).…”

Section: Introductionmentioning

confidence: 99%

Study on seismic fragility of prefabricated columns connected by grouted sleeves based on IDA method

Wang,

Jia,

Zhao

2024

IJSI

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PurposePrefabricated columns connected by grouted sleeves are increasingly used in practical projects. However, seismic fragility analyses of such structures are rarely conducted. Seismic fragility analysis has an important role in seismic hazard evaluation. In this paper, the seismic fragility of sleeve connected prefabricated column is analyzed.Design/methodology/approachA model for predicting the seismic demand on sleeve connected prefabricated columns has been created by incorporating engineering demand parameters (EDP) and probabilities of seismic failure. The incremental dynamics analysis (IDA) curve clusters of this type of column were obtained using finite element analysis. The seismic fragility curve is obtained by regression of Exponential and Logical Function Model.FindingsThe IDA curve cluster gradually increased the dispersion after a peak ground acceleration (PGA) of 0.3 g was reached. For both columns, the relative displacement of the top of the column significantly changed after reaching 50 mm. The seismic fragility of the prefabricated column with the sleeve placed in the cap (SPCA) was inadequate.Originality/valueThe sleeve was placed in the column to overcome the seismic fragility of prefabricated columns effectively. In practical engineering, it is advisable to utilize these columns in regions susceptible to earthquakes and characterized by high seismic intensity levels in order to mitigate the risk of structural damage resulting from ground motion.

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Seismic performance of prefabricated concrete columns with grouted sleeve connections, and a deformation-capacity estimation method

Cited by 15 publications

References 24 publications

Review of accelerated construction of bridge piers - methods and performance

Review of accelerated construction of bridge piers - methods and performance

Research on the Pounding Response and Pounding Effect of a Continuous Rigid-Frame Bridge with Fabricated Super-High Piers Connected by Grouting Sleeves

Study on seismic fragility of prefabricated columns connected by grouted sleeves based on IDA method

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