Experimental and numerical investigation on mechanical properties of grouted-sleeve splices

Liu, Chao; Pan, Liufeng; Hai, Liu; Tong, Huawei; Yang, Yubing; Chen, Wei

doi:10.1016/j.conbuildmat.2020.120441

Cited by 37 publications

(18 citation statements)

References 8 publications

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“…11. Under the external force F, the elongation produced by the grouted sleeve splice consists of three parts: steel bar elongation ΔL r of segment L r , elongation ΔL S of segment L S and the amount of bond-slip ΔL BS between rebar and grout: ΔL = ΔL r + ΔL S + ΔL BS (10) In Eq. ( 10):…”

Section: Theoretical Calculation Of the Force Mechanismmentioning

confidence: 99%

“…Therefore, previous research on the grouted sleeve splice focuses on the mechanism of bonding force. Several design rules for the grouted sleeve splice were determined through experimental research [10][11][12][13][14]: (1) the anchorage length of reinforcement in a grouted sleeve should be longer than 8d r (d r is the diameter of rebars connected by the grouted sleeve); (2) the ultimate tensile strain should exceed 1.25 times the yield strain; and (3) a larger sleeve section diameter plays a positive role in enhancing the bonding force of rebars. In summary, the impact factors of bonding force in grouted sleeve splice include the anchorage length, grout strength, sleeve diameter, sleeve type, and rebar type.…”

Section: Introductionmentioning

confidence: 99%

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Experimental study on tensile mechanism of UHPC grouted sleeve splice

Song

Liu

et al. 2023

Construction and Building Materials

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Section: Theoretical Calculation Of the Force Mechanismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental study on tensile mechanism of UHPC grouted sleeve splice

Song

Liu

et al. 2023

Construction and Building Materials

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“…Under the action of the El Centro wave, the acceleration peaks of the two GPC pier specimens with higher stiffness increased more than those of the two CIP pier specimens; further, there was no significant difference in the acceleration peak responses of the two GPC pier specimens. According to previous studies (Dahal and Tazarv, 2020;Liu et al, 2020a;Zheng et al, 2014Zheng et al, , 2015, on the premise of meeting the minimum reinforcement anchorage length required by the code, when a large tensile force is generated under the action of ground motion, it will not have a great impact on the reinforcement connected in the sleeve. To this effect, changing the reinforcement anchorage length was found to have little effect on the acceleration response of the pier top.…”

Section: Prefabricated Pier Technologymentioning

confidence: 99%

Shaking table test on single segment prefabricated concrete bridge pier connected by grouting sleeve

Yang

Liang³

2021

IJSI

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PurposePrefabricated pier technology has the advantages of quick construction time, relatively little traffic interference and relatively small environmental impact. However, its applicability under earthquake conditions is not yet fully understood. The seismic performance and influence parameters of a prefabricated concrete pier connected by embedded grouting sleeve (GS) in a pile cap are investigated in this study.Design/methodology/approachTwo prefabricated pier scale model specimens with different reinforcement anchorage lengths and two comparative cast-in-place (CIP) pier model specimens are designed and manufactured for a seismic simulation shaking table. With the continuous increase of input ground motion strength, the changes in basic dynamic characteristics, damage development, acceleration and displacement variation laws, and pier bottom strain responses are compared among the specimen. The finite element software ABAQUS is used to simulate the test pier.FindingsThe crack location of the two prefabricated pier specimens is almost the same as that of the CIP pier specimens; CIP pier specimens show more penetrated cracks than prefabricated pier specimens, as well as an earlier crack penetration time. The acceleration, displacement and strain response of the CIP pier specimens are more affected by earthquake activity than those of the prefabricated pier specimens. The acceleration, displacement and strain responses of the two prefabricated piers are nearly identical. The finite element results are in close agreement with the acceleration and displacement response data collected from the test, which verifies the feasibility of the finite element model established in ABAQUS.Originality/valueA GS connection method is adopted for the prefabricated pier, and on the premise of meeting the minimum reinforcement anchorage length required by the code, this study explores the influences of different reinforcement anchorage lengths on the seismic performance of prefabricated piers in high-intensity areas. A shaking table loading test is used to simulate the real changes of the structure under the earthquake. This work may provide a valuable reference for the design and seismic performance analysis of prefabricated pier, particularly in terms of seismic stability.

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“…About grouted sleeve connections, Kim (2012) conducted tensile tests on two types of grouted sleeve connectors, Liu C et al (2020) studied mechanical properties of 15 sleeve specimens for monotonic tensile tests and Fen et al (2021) investigated dynamic properties of grouted sleeve connections. These studies showed that grouting sleeve technology was an effective method to provide steel bar connection in precast concrete structures.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of plate type steel bar connectors for prefabricated concrete structures

Zhu

Liu

et al. 2022

Advances in Structural Engineering

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This article presented experimental studies on mechanical properties on Plate Type steel Rebar Connector (PTRC), which is composed of steel plate, thread coupler, and steel tube. This is a new method of mechanical connection of steel bars provided in this article for full-precast concrete shear wall structures. The proposed PTRC was tested under monotonic tensile tests, high-stress cyclic tests and high-deformation cyclic tests according to the code (JGJ107-2016). PTRCs were evaluated as Grade I splice through U0, U4, U8, Asgt, and U20 according to the code. The stress distribution curves and end section rotation of PTRCs with different parameters were analyzed using verified Finite Element Model. The calculation methods of PTRC initial stiffness, including stiffness of bolt and threads were provided.

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Experimental and numerical investigation on mechanical properties of grouted-sleeve splices

Cited by 37 publications

References 8 publications

Experimental study on tensile mechanism of UHPC grouted sleeve splice

Experimental study on tensile mechanism of UHPC grouted sleeve splice

Shaking table test on single segment prefabricated concrete bridge pier connected by grouting sleeve

Mechanical properties of plate type steel bar connectors for prefabricated concrete structures

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