Abstract
Grouted-sleeve connections are widely used to connect precast concrete members. In this study, a new type of grouted sleeve was presented. The sleeve was fabricated with a new method of forming ribs on the inner wall of a seamless steel pipe by using surfacing welding. Based on this sleeve and slotted rebar, 33 splice specimens with different parameters were designed and manufactured. Uniaxial tensile tests and a comparative analysis were carried out to study the influence of parameters such as the inner cavity of sleeves, the anchorage length, and the grout strength on the mechanical properties of grouted sleeve splices. Test results show that the rib spacing has an effect on the failure mode of the joint. The effect of increasing grout strength on the tensile strength of the joint is significant. However, it is not easier to reach and less reliable than increasing the anchorage length. • A new type of grouted sleeve by using surfacing welding. • Use of slotted rebar to measure the strain of the rebar in the sleeve. • Parametric research and comparative analysis.
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