CN210369018U - Rib strenghthened type column base crab-bolt - Google Patents

Abstract

The utility model relates to a building materials field refers in particular to a ring rib strenghthened type column base crab-bolt, including the stock, set up a plurality of ring ribs on the stock, the ring rib is buried underground in the concrete. After adopting above-mentioned scheme, can make the interlock of crab-bolt and concrete inseparabler.

Description

Rib strenghthened type column base crab-bolt

Technical Field

The utility model relates to a building materials field refers in particular to a ring rib strenghthened type column base crab-bolt.

Background

The column base anchor bolt is an important part in a steel structure column base connecting node, the conventional column base anchor bolt is shown in figure 1, the bonding stress of the anchor bolt and the peripheral concrete is utilized to transmit the tensile force in the anchor bolt to the peripheral concrete, the conventional column base anchor bolt is long in anchoring length, the shear force hysteresis effect exists between the anchor bolt and the peripheral concrete, the anchor bolt is large in tensile strain, and when the anchor bolt and a column base bottom plate jointly form a rigid column base connecting node, the node rotational rigidity is small due to the large anchor bolt tensile strain.

Therefore, the present inventors have further studied and developed an annular rib reinforced pedestal anchor bolt, which is produced by the present invention.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ring rib strenghthened type column base crab-bolt can make the interlock of crab-bolt and concrete inseparabler.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

the utility model provides a ring rib strenghthened type column base crab-bolt, includes the stock, set up a plurality of ring ribs on the stock, the ring rib is buried underground in the concrete.

The interaction force between the anchor bolt and the peripheral concrete is enhanced through the annular ribs, so that the anchor bolt is tightly occluded with the concrete.

Further, the end of the anchor rod, which is located outside the concrete, is provided with a gasket and a fastener, and the fastener is arranged above the gasket.

Furthermore, the annular rib at the lower end of the anchor rod is provided with an anchoring plate in a clinging manner.

Furthermore, the ring rib adopts a hexagonal head nut, and corresponding threads are machined at the position of the anchor rod where the hexagonal head nut needs to be arranged.

After the scheme is adopted, compared with the prior art, the utility model, have following advantage:

the ring rib strenghthened type column base crab-bolt utilizes the local pressure-bearing effect of the ring rib that equidistant or unequal interval arranged on the crab-bolt and peripheral concrete, with the pulling force in the crab-bolt along the stock length to transmitting to peripheral concrete fast, makes the interlock of crab-bolt and concrete inseparabler, and the crab-bolt axial should change for a short time to increase the rotational stiffness of rigidity column base connected node.

Drawings

FIG. 1 is a schematic view of a prior art anchor;

fig. 2 is a schematic view of the present invention;

description of the reference symbols

Anchor rod 1, annular rib 2, gasket 3, fastener 4, anchor plate 5, concrete 6.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in the figure, a ring rib strenghthened type column base crab-bolt, including stock 1, set up a plurality of equidistance or not equidistance ring rib 2 on the stock 1, ring rib 2 buries underground in concrete 6.

The ring rib 2 adopts the hexagon head nut, and the position processing that need set up the hexagon head nut on the stock 1 has corresponding screw thread, forms ring rib 2 with this position of nut screw in and strengthens during the use, through the local pressure-bearing effect of ring rib 2 and peripheral concrete 6, and the tensile stress in the stock 1 transmits to peripheral concrete 6 along the pole length direction fast to reduce stock 1 and draw the strain.

The end part of the anchor rod 1, which is positioned outside the concrete 6, is provided with a gasket 3 and a fastener 4, the fastener 4 is arranged above the gasket 3, and the fastener 4 and the gasket 3 are matched with a column base for fixing use.

The annular rib 2 at the lower end of the anchor rod 1 is tightly attached with the anchoring plate 5, so that the anchor bolt can be more stably arranged, and the offset is not generated when the concrete 6 is added.

The aforesaid is only the embodiment of the utility model discloses, all simultaneously the utility model discloses in related words such as "upper and lower, left and right, centre" only do the reference usefulness, not absolutely restricted, all utilize the utility model discloses carry out insubstantial change, all shall belong to the act of infringing the protection scope of the utility model.

Claims (4)

1. The utility model provides a ring rib strenghthened type column base crab-bolt which characterized in that: the anchor rod is provided with a plurality of annular ribs, and the annular ribs are embedded in concrete.

2. The ring-rib reinforced column base anchor bolt of claim 1, which is characterized in that: the anchor rod is located the tip outside the concrete and is provided with gasket and fastener, the fastener sets up in the gasket top.

3. The ring-rib reinforced column base anchor bolt of claim 1, which is characterized in that: and the annular rib at the lower end of the anchor rod is tightly attached with an anchoring plate.

4. The ring-rib reinforced column base anchor bolt of claim 1, which is characterized in that: the ring rib adopts hexagon head nut, and the position that needs to set up hexagon head nut on the stock is processed there is corresponding screw.

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