Grouted Sleeve Connection for Precast Concrete Members

Abstract

Precast concrete structures have gained preference in the modern construction industry because of the multiple advantages they offer. The connection of precast members is an important aspect to consider in the design of structures with precast components. Grouted Sleeve connection, one of the famous connector types, is made of the trio of reinforced bars, high strength grouting materials and a ductile iron cylinder. This article compares the finding of recent experimental research findings on grouted sleeve connection and establishes the relationship between the three components of the connector to enhance the performance of the splicing agent. It is found that the tensile performance of the connector increases with the embedded length of the bar for a normal sleeve. An effective embedded length set between 6 and 8 times the diameter of the bar will maximize the tensile performance of the connector. The increase in diameter of the sleeve cylinder, the compressive strength of the grout and the length of the bar embedded and its surface will affect the bond performance and the mode of failure under tensile load.

Experimental and numerical assessment of the location-based impact of grouting defects on the tensile performance of the fully grouted sleeve connection

“…Recently, there has been increasing research interest to determine the load-bearing capacity of the grouted sleeve connection, establish its mechanical properties, and understand the grout-bar bond performance of the connection. Several experimental works subjected the grouted sleeve connection to uniaxial tensile tests to determine its tensile performance, assess its efficiency to connect reinforcements and achieve at least a similar tensile performance of the continuous reinforcement [9][10][11][12][13][14][15]. In common agreement, the findings highlighted the ability of the connection to splice reinforcements to their ultimate tensile capacity and beyond, provided that the connection's components maintain an adequate geometric and mechanical configuration.…”