Special shearing-resistance anchor bolt pair for anchor group

Abstract

The invention discloses a special shearing-resistance anchor bolt pair for an anchor group, comprising a basic part, an anchored part overlapped on the basic part and an anchor part for fixing the anchored part on the basic part, wherein the anchor part comprises an anchor bolt and an anchor nut; the anchor bolt successively passes through the anchored part and the basic part, and is fastened by the anchor nut; and the anchor bolt and the anchored part are closely matched through a cone pair. The shearing-resistance anchor bolt pair ensures that the anchor bolt and the anchored part are closely matched through the cone pair, avoids adverse impact on the anchor structure due to the thickness of the basic part, and can be applied to an outward overhung additional structure of a lamina basic part, and the matching structure of the cone can eliminate the radial clearance between the anchor bolt and the anchored part to increase the stress effect of the anchor bolt; and the anchor bolt pair has stronger adaptability to shearing force, so after the anchor bolt pair is anchored, the anchor part in the shearing-resistance anchor group can be synergically stressed to improve the anchor capability, reinforce the stability of the structure, and eliminate potential safety hazard.

Description

technical field [0001] The invention relates to a shear-resistant anchoring structure, in particular to a special shear-resistant anchor bolt pair for group anchors. Background technique [0002] The use of group anchors to fix the two components that are relatively slipping is a structure that is widely used in the field of construction engineering. A typical example is to add a cantilevered structure floor to the original floor. The original floor is used as the foundation. The new The cantilever is used as the anchor, and the group anchor anchoring structure is generally used. In this anchoring structure, the anchors are subjected to transverse shear force, which requires the anchors to be cooperating and have sufficient shear strength. In the prior art, when the reinforced concrete structure needs to overhang the floor structure to add a new steel structure floor, the connection between the cantilever steel beam and the main structure is usually anchored by group anchor...

AI Technical Summary

Problems solved by technology

In the prior art, when the reinforced concrete structure needs to overhang the floor structure to add a new steel structure floor, the connection between the cantilever steel beam and the main structure is usually anchored by group anchors with ordinary anchorage structures; The following problems exist in the use of anchor structures for concrete thin slabs: the thickness of the foundation parts cannot meet the requirements of the anchoring structure for the anchoring depth, and the anchored structure is difficult to meet the ideal anchoring strength requirements; The strength of the shear force and tensile stress between the anchors is uneven, resulting in the group anchor effect is not obvious, the service life of the anchors is different, affecting the stability of the anchoring structure, and there are obvious safety hazards

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