Reinforced sleeve joint form

There are various types of rebar sleeve joints, and there are differences in mechanical properties. According to the mechanical properties, the bearing capacity can be classified according to its bearing capacity. It is beneficial to consider the importance of the structure, the position of the joint in the structure, the percentage of joints, and other applications. The influence of reasonable choice of joint type. It can be mainly divided into: the tensile strength of the primary joint connector to be not less than 1.10 times the tensile strength and ductility of the reinforcement or the standard value, and the high tensile strength and compression performance. Repeating; secondary joints: Tensile strength of the joints not less than the standard value Tensile strength and high ductility of the joined steel, repeated tensile and compressive properties; Tertiary joints: 1.35 where joint tensile strength is not less than the yield strength of the joined steel Times the standard value and has some ductility and repeated stretch and compression properties. For example, when the steel joints in the high stress area of the concrete structure must have 100% connection, the Grade I connectors should be used; for the 50% steel joints, priority II joints should be given, and the high stress of the reinforced concrete structure. The connector's plastic, but less demanding site, can use tier iii connectors. After classification, it is also beneficial to reduce the sleeve material consumption and the cost of accessories, better technical and economic benefits; classification to the construction site, is also conducive to the joint sampling unqualified, according to different grades of connectors and applications connected to the site Determine if the proportional limit is degraded.