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Bond Strength of Grout-Filled Splice Sleeve Considering Effects of Confinement
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 Title & Authors
Bond Strength of Grout-Filled Splice Sleeve Considering Effects of Confinement
Kim, Hyong-Kee; Ahn, Byung-Ik;
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 Abstract
The purpose of this study is to propose the more reasonable equation of bond strength of grout-filled splice sleeve. To accomplish this objective, total 60 full-sized specimens were tested under monotonic loading. The experimental variables are compressive strength of mortar, embedment length and size of reinforcing bars. Following conclusions are obtained; 1) If the adequacy of existing equations which estimate the bond strength of grout-filled splice sleeve are investigated, they underestimate the bond strength of grout-filled splice sleeve by 8-18%. Also the existing equations have a tendency to underestimate with decrease in the embedment length of reinforcing bars. 2) From the test result of bond failure, the equation which estimates the confining pressure of grout-filled splice sleeve was proposed by making multiple regression analyses of which independent variables are embedment length of reinforcing bars and compressive strength of mortar. This equation predicted the measured bond capacity of this test more accurately than existing equations and eliminated the deviation according to the embedment length of reinforcing bars.
 Keywords
grout-filled splice sleeve;efforts of confinement;embedment length;bond strength;
 Language
Korean
 Cited by
1.
Bond behavior of spirally confined splice of deformed bars in grout, Construction and Building Materials, 2015, 80, 180  crossref(new windwow)
2.
Tensile strength of the grout-filled head-splice-sleeve, Construction and Building Materials, 2016, 124, 155  crossref(new windwow)
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