Performance of cs-sleeve under direct tensile load: part II: structural performanceud

摘要

Tensile resistance of a sleeve connector used to connect between two structuraludcomponents by confining grouted reinforcement bars relies on interaction among reinforcementudbars, sleeve and grout. In this study, a total of nine specimens with different configurations, sizesudof sleeves, reinforcement bars’ surface conditions and also grouting materials were tested underuddirect tensile tests. This paper presents further discussion on the study of performance of CSSleeves,udparticularly on the load-displacement graphs and load-strain graphs of the specimens inudorder to acquire the structural performance of the specimens. The test data indicates that threads onudreinforcement bar had significantly deteriorated the bonding mechanism between reinforcementudbars and grout. None of the specimens achieved the required strength. However, the findingsudobtained from the study provide essential basis for future research in developing an adequateudsleeve connector.