Special sleeve for butt joint of macrotype broken stone bolt and butt joint method thereof

A technology of anchor bolts and damaged ground, applied to the frame of the engine, supporting machines, mechanical equipment, etc., can solve the problems of time-consuming, difficult to guarantee strength and verticality, etc., and achieve enhanced shear resistance and good shear resistance , short time effect

Inactive Publication Date: 2009-02-18
MCC BAOSTEEL TECH SERVICE
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a special sleeve for the butt joint of large damaged anchor bolts and its butt joint method, which solves the problem that the traditional large damaged pre-embedded anchor bolt joint construction process takes a lot of time, and the strength and verticality are often Difficult to guarantee

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  • Special sleeve for butt joint of macrotype broken stone bolt and butt joint method thereof
  • Special sleeve for butt joint of macrotype broken stone bolt and butt joint method thereof

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] First, check the damaged anchor bolts. Generally, the damage of anchor bolts mainly occurs at the connection between the upper concrete bolts and the equipment. The vibration of the equipment causes the wear and tear of the upper threads of the bolts, or the high-pressure water and other media cause certain damage to the bolts. Corrosion leads to bolt failure. Because the large-scale anchor bolts of the direct-buried type generally have to go deep into the concrete layer at a depth of more than 1m, if the entire anchor bolt is directly removed and replaced with a new bolt, firstly, it will cause great damage to the integrity of the concrete layer, and secondly, the construction The difficulty is also very high. The foundation generally adopts a concrete layer above C30, especially the deep foundation at the bottom. Because it is formed by one-tim...

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Abstract

The invention relates to a special butt joint sleeve for a large breakage anchor bolt and the butt joint method thereof. The sleeve is a hollow cylindrical sleeve; reinforced hoops are respectively arranged on the upper end and lower end of the sleeve; a vertical waist-shaped long hole is arranged on the sleeve. The butt joint method includes that: the breakage part of the anchor bolt is cut off; the burrs on the cut off position are polished to be smooth; a new anchor bolt is arranged on the cut off position and the special sleeve is nested to process the butt joint of the new bolt and the old bolt; the connection position of the new bolt and the old bolt and the connection position of the new bolt, the old bolt and the sleeve are welded for fixation. Wherein, the upper end and the lower end of the sleeve respectively have the same distance to the connection positions of the new bolt and the old bolt. The opposite angle welding is adopted between the sleeve, the new bolt and the old bolt. The special butt joint sleeve for a large breakage anchor bolt and the butt joint method thereof are applicable to the imbedded anchor bolts of electromechanical devices, workshop steel structure columns and the foundations of the overloading bearing device or the vibration impact device, have short construction time and guarantee the butt joint intensity and the perpendicular degree.

Description

technical field [0001] The invention relates to a special sleeve for butt jointing of large damaged anchor bolts and a butt joint method thereof. Background technique [0002] Butt joint of large damaged pre-embedded anchor bolts, in the usual construction process, the old bolt damaged section is cut off first, and then the new bolt section that meets the elevation requirements is spot-welded with the old bolt section. The verticality of the old and new bolts is calibrated, and after spot welding and fixing, three round steels are used for binding welding and fixing (the cross-sectional area of ​​the three round steels is greater than or equal to the cross-sectional area of ​​the original anchor bolts), and the damaged pre-embedded ground is completed. Foot bolt butt joint. [0003] However, this method requires a lot of time, and the strength and verticality are often difficult to guarantee. Taking the rolling line renovation project of a steel factory as an example, a tot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16M7/00B23P6/00
Inventor 杨荣青陆炳如李敬平
Owner MCC BAOSTEEL TECH SERVICE
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