Steel bar cold squeezing sleeve connecting structure and preparation method thereof
A sleeve connection and cold extrusion technology, applied in the direction of structural elements, building components, building structures, etc., can solve problems such as unfavorable cost control and large consumption of steel bars
Pending Publication Date: 2018-03-30
SINOHYDRO ENG BUREAU 4
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- Abstract
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Problems solved by technology
Compared with welded joints, the construction of lap joints is simpler and requires less skill level of construction personnel, but the consumption of steel bars is relatively large, which is not conducive to cost control
Method used
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Embodiment
[0039] see figure 1 , which is a steel cold extruded sleeve connection structure provided by the embodiment of the present invention, such as figure 1 As shown, the structure includes a cold extruded sleeve connector 1;
[0040] The first steel bar 2 and the second steel bar 3, one end of each of the first steel bar 2 and the second steel bar 3 is respectively inserted into the cold extruded sleeve joint 1 from both ends of the cold extruded sleeve joint 1 inside, and is fixedly connected with the cold extruded sleeve connector 1 by a cold extrusion process;
[0041] Wherein, the axis of the cold-extruded sleeve joint 1, the axis of the first steel bar 2 and the axis of the second steel bar 3 coincide; the aspect ratio of the cold-extruded sleeve joint 1 is 27-29, and the cold-extruded sleeve joint 1 The ratio between the outer diameter of the pressure sleeve connector 1 and the wall thickness of the sleeve is 5.80˜6.42.
[0042] Further, the lengths of the first steel bar ...
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Abstract
The invention discloses a steel bar cold squeezing sleeve connecting structure and a preparation method thereof. The structure comprises a cold squeezing sleeve connecting head, a first steel bar anda second steel bar, one ends of the first steel bar and the second steel bar are inserted into the cold squeezing sleeve connecting head from the two ends of the cold squeezing sleeve connecting headcorrespondingly and fixedly connected with the cold squeezing sleeve connecting head through a cold squeezing technique. The axis of the cold squeezing sleeve connecting head, the axis of the first steel bar and the axis of the second steel bar coincide with one another. According to the steel bar cold squeezing sleeve connecting structure, relative operation is easy, the connecting technique is stable, generally, personnel only need to be trained slightly and then can be in a post for operation, trained mechanics are not needed, the influence under the environmental and artificial operation factors is small, and the problems that the axes of the steel bars deviate, and bending of the steel bars at on-site joints is difficult can be avoided.
Description
technical field [0001] The invention relates to the technical field of steel bar connection, in particular to a steel bar cold extrusion sleeve connection structure and a preparation method thereof. Background technique [0002] At present, the reinforced concrete lining of tunnels mostly uses circular steel bars. What kind of connection form to use in the production and installation of steel bars and how to ensure the quality of the joints of the circular steel bars have become important links for the tidy tunnel lining site and efficient steel bar production and installation. The manufacture and installation of annular steel bars is one of the important processes in the construction of reinforced concrete lining in tunnels. The joint connection technology and method of the steel bars are also important links. At present, the connection methods of annular steel bars in cavern lining mainly include: welding, binding connection and mechanical connection. [0003] (1) Welded j...
Claims
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Login to View More IPC IPC(8): E04C5/16B21F15/00
CPCE04C5/16B21F15/00
Inventor 谢延强尹纪华冯勤龚真锋魏军宏刘钊程进东李业炜刘家宁
Owner SINOHYDRO ENG BUREAU 4