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Experimental study on a precast beam-column joint with double grouted splice sleeves

Lu, Z; Huang, J; Dai, S; Liu, J; Zhang, M; (2019) Experimental study on a precast beam-column joint with double grouted splice sleeves. Engineering Structures , 199 , Article 109589. 10.1016/j.engstruct.2019.109589. Green open access

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Abstract

The construction speed and quality of precast frame structures are greatly influenced by weld, tie, prestress, cast concrete requirements, etc. on site. To address these challenges, a precast beam-column joint connected by double grouted sleeves is proposed. This paper presents an investigation on seismic behaviour of the joint subjected to static and cyclic loadings. In total, six precast specimens with different assembly lengths, transition bar diameters and types of grouted sleeve and one cast-in-place control specimen were tested. Results show that the double grouted sleeve splices in joints perform well. The initial stiffness of prefabricated specimens is larger than that of the control specimen and the load bearing capacity of the prefabricated specimens is similar to that of the control specimen. As the transition rebar diameter increases from 16 mm to 18 mm, the energy dissipation ability of the prefabricated specimens is increased by 64.8% but is approximately 41% lower than that of the control specimen due to their relatively lower deformation capacity. Threads in the grouted sleeve have a negative impact on the deformation and energy dissipation abilities of the joints. The method for cast-in-situ joint is adequate for predicting the flexural capacity of precast joint connected by double grouted sleeves.

Type: Article
Title: Experimental study on a precast beam-column joint with double grouted splice sleeves
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.engstruct.2019.109589
Publisher version: https://doi.org/10.1016/j.engstruct.2019.109589
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Precast concrete structures; Connections; Grouted sleeve; Cyclic loading; Plastic hinge
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10080785
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