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

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.

An experimental study of the axial compression performance of two-part precast concrete columns

“…Precast concrete structures have distinct advantages over cast-in-place concrete structure in terms of better quality control, speed, cost, and less environmental pollution (Belleri et al, 2015;Lu et al, 2019;Nikbakht et al, 2014). The performance of a precast concrete structure depends heavily on the mechanical properties of the connections among its precast elements (Kurama, 2018), a matter receiving widespread attention.…”

Study on Finite Element Model of the Prefabricated Reinforced Concrete Beam‐Column Joints with Grouted Sleeves

“…Construction with the precast concrete (PC) method has gathered much attention as a substitution for convention cast-in-situ concrete structures because of its good quality, cost-effectiveness, accelerated construction speed, and lower energy consumption [1][2][3][4]. However, the relatively low reliability, high cost of the connections, and the low seismic performance of PC structures have limited their further application [3].…”

Structural Performance of a Precast Concrete Modular Beam Using Bolted Connecting Plates

“…Unlike steel modules, precast concrete (PC) modules have reinforcing bars (rebars) inside each module, so connection between the rebars must be considered when the modules are connected. The rebars in the PC module are connected through a lap splice, welded splice, or grouted splice sleeve [10][11][12][13][14][15]. The grouted splice sleeve is the connection method used most widely.…”