5/1/2024 0 Comments Tensile load on barA good grouted splice connection generally offers a stiffness about equivalent to a steel bar and undergoes the stages of elastic, yielding and plastic responses when subjected to incremental tensile load (Ling et al. The relevant standards specify a minimum tensile capacity of 125% of the nominal yield strength of the spliced bars (ACI-318 2002 AC-133 2008). The test is simple, cheap and easy to handle. Grouted splice sleeves are usually tested with a tensile load to determine the feasibility and the characteristic strength. The connection can be modified to suit the needs on site, such as the allowable tolerance and anchorage length. The connection can be fabricated on site by using simple techniques such as welding and cutting. The materials used are easily accessible on any construction site. These connections might not be as effective as the proprietary products in terms of having a minimum anchorage length, but they are advantageous in the following aspects: The bond slip failure could occur at the bar or at the sleeve. The mechanical interlocking among the grout, the spliced bar and the sleeve are equally important. Both the longitudinal and lateral deformations are detected under tensile load. The sleeve needs to resist the tensile load and confine the bond at the same time. Nevertheless, these connections have the following in common: Therefore, the response of connection under load, the required anchorage length of the bars and the amount of materials required vary slightly among each other. These connections differ from one another in terms of (a) the mechanical properties of materials used and (b) the load resisting mechanisms as a result of the sleeve configurations and designs. ![]() 2014) and glass fiber reinforced polymers (Sayadi et al. 2014 Hosseini and Rahman 2013), square hollow sections (Ling et al. 2008 Tullini and Minghini 2016), spirals (Aldin Hosseini and Abd. This includes mild steel pipes (Henin and Morcous 2015 Abd. Since then, various materials and shapes have been proposed as the connection for steel bars. Researchers then realised that with adequate understanding of the load resisting mechanism, the materials that are commonly available at the construction site could easily be transformed into the grouted splice sleeves. ![]() 1995) proposed to connect steel bars with modified steel pipes. Designing the sleeves have been the works of specialists. 2015 Jansson 2008 Lin and Wu 2016) owned by several international companies. Grouted splice sleeves have been the proprietary products (Haber et al.
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