Shear-resistant anti-slip connection pair with adjustable installation position and method
An installation position and anti-slip technology, applied in the direction of connecting components, pins, mechanical equipment, etc., can solve the problems of large weakening of concrete structures, limited shear resistance, and weak shear resistance of connecting pairs, so as to improve the shear resistance The cross-sectional area and structural design are reasonable and ingenious, and the effect of enhancing shear performance
Inactive Publication Date: 2020-09-29
东莞市中机建科实业有限公司
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Problems solved by technology
[0003] The method of using ordinary pre-embedded bolt sleeves and ordinary standard bolts to fix the installed part with grooved installation adjustment holes is to use ordinary hexagonal head bolts to pass through the mounting holes of the objects to be installed and fixed. The external thread of the bolt is tightened to the internal thread of the pre-embedded plastic bolt sleeve to achieve the fixation of the installation object. When the shear load generated by axial displacement, the shear effective cross-sectional area of ordinary hexagon head bolts is limited by the diameter of the bolt's stem, and its shear resistance is limited; the arc-shaped mounting surface and the arc-shaped surface of the installed part are usually difficult to completely The ability to restrict the sliding of the installed part along the groove-shaped installation adjustment hole by the friction force generated by the bolt tension is weak; and because the concrete structure of the anchored pre-embedded plastic bolt sleeve is used to withstand the installation objects, ordinary hexagon head bolts, pre-embedded The position of the shear load transmitted by the plastic bolt sleeve is within the depth range of the protective layer of the main reinforcement of the concrete structure. The main reinforcement of the concrete structure at this position cannot provide more effective support for further increasing the shear load. The force load is difficult to be evenly distributed to the concrete structure with a larger outer diameter range than the embedded plastic bolt sleeve. The above reasons cause the surface layer of the concrete structure outside the embedded plastic bolt sleeve to crack easily when subjected to shear load.
[0004] In addition, if the arc-shaped metal installation channel is pre-buried within the range where the position needs to be adjusted, the method of fixing the installed part to an appropriate position outside the arc-shaped metal channel with T-bolts is expensive, and the length of the metal channel must be Covering the size that needs to be installed and adjusted, the pre-embedded long metal channel will greatly weaken the concrete structure; in addition, the T-bolts used in the pre-embedded metal channel and the T-bolt connection pair are difficult to set up a shear-resistant cylindrical structure with an enlarged diameter, and the connection Weak ability to resist shear force
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[0030] In an embodiment, the present invention is used to install objects on the arc-shaped structural surface of the arc-shaped concrete structure A.
[0031] see Figure 1 to Figure 7 This embodiment provides a shear-resistant and anti-slip connection pair with adjustable installation position, including: an installed part 1, a compression gasket 2, and a pre-embedded joint set in an arc-shaped concrete structure A corresponding to the installed part 1. Bolt sleeve 3; the installed part 1 is provided with a grooved hole 11 for adjusting the installation position, and correspondingly the grooved hole 11 is provided with a bolt through hole 21 through the upper and lower end surfaces of the compression gasket 2; The shear bolt 4 is inserted into the embedded bolt sleeve 3, the grooved hole 11, and the bolt through hole 21 to drive the compression gasket 2 to compress the installed part 1 on the arc-shaped concrete structure A. curved surface.
[0032] Specifically, the mount...
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The invention discloses a shear-resistant anti-slip connection pair with an adjustable installation position. The connection pair comprises an installed part, a compression gasket and a pre-embedded bolt sleeve arranged in an arc-shaped concrete structure corresponding to the installed part; the installed part is provided with a groove-shaped hole used for adjusting the installation position, andbolt through holes are formed by penetrating through the upper end face and the lower end face of the compression gasket and corresponding to the groove-shaped hole; and a shear-resistant bolt is inserted into the pre-embedded bolt sleeve, the groove-shaped hole and the bolt through holes to drive the compression gasket to press the installed part on the arc-shaped structural surface of the arc-shaped concrete structure. The invention also discloses an assembling method of the connection pair. The connection pair and the method have reasonable and ingenious structural design and low cost, andthe installed part has an installation position adjusting function; through combination of the matching of a shearing-resistant horn cavity and an enhanced shearing-resistant cone section and the matching of the bolt through holes and a cylindrical constraint section of the shearing-resistant bolt, the shearing-resistant effective sectional area of a product is greatly improved, and the cracking of the arc-shaped concrete structure is avoided; and moreover, the original mechanical property of the arc-shaped concrete structure can be effectively guaranteed.
Description
technical field [0001] The invention relates to the technical field of installation and connection of objects on arc-shaped concrete structures, in particular to a shear-resistant and anti-slip connection pair and a method with adjustable installation positions. Background technique [0002] In the technical field of installing and connecting objects on arc-shaped concrete structures, the traditional technology uses ordinary embedded bolt sleeves to fix ordinary standard bolts to the installed parts with grooved installation and adjustment holes, or use them at positions that need to be adjusted. The method of pre-burying the arc-shaped metal installation channel within the scope, and fixing the installed part to the appropriate position outside the arc-shaped metal channel by using T-shaped bolts. [0003] The method of using ordinary pre-embedded bolt sleeves and ordinary standard bolts to fix the installed part with grooved installation adjustment holes is to use ordinary...
Claims
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IPC IPC(8): F16B13/04
CPCF16B13/04
Inventor周俊亨周亮周正
Owner东莞市中机建科实业有限公司