Number of tension and compression mechanical splices is shown from Figure-4 to Figure-7. Tension and compression mechanical splices types, designated bar sizes to be spliced by each splice type, the grade of the steel bar which is spliced using certain type of tension and compression mechanical splice, and installation condition of each mechanical splices are provided in Table-1. There are sizable numbers of commercially manufactured tension and compression mechanical splices. This type of mechanical splice can resist tension and compression stress. Tension and Compression Mechanical Splices for Rebars It should be known that the end of the rebars need to be saw cut in the case of strap type steel coupling sleeve, but no special end preparation is needed for steel filled coupling sleeve. 57 whereas the latter is suitable for splicing bar size ranges from No.22 to No.57.įig.2: Steel Filled Coupling Sleeve Spliceįig.3: Strap Type Steel Coupling Sleeve Splice The former can be used to splice rebar sizes ranges from No. Steel filled coupling sleeve and strap type steel coupling sleeve are the two most commonly used examples of end bearing splices. Therefore, if this condition cannot be guaranteed, then it is advised to avoid the use of compression only mechanical splices for reinforcement bars. The compressive stress is transferred by vertical bearing from one bar to another one.Ĭompression only mechanical splices can be used when tension stress is not occurred. Mechanical lap splices or tension only mechanical spliceįig.1: Mechanical Splices for Reinforcement Bars Compression Only Mechanical Splices or End Bearing SplicesĪs it may be noticed from its name, this type of splice can resist compression stress merely.Tension and compression mechanical splices.Compression only mechanical splices or end bearing splices.There are four major types of mechanical splices: Mechanical splices in reinforced concrete construction should meet the building code requirements for developing tension and compression as required These are designed based on codes of standard practice. □ Reading time: 1 minuteMechanical rebar splices for rebars in concrete construction is an effective method of joining reinforcing bars.
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