RU2228405C2 - Anchoring device - Google Patents

Abstract

FIELD: building structures, particularly for eccentric loaded column anchoring and quickly-detachable connection of main reinforcement for concrete structures, for instance, fixed connection between beam and column. SUBSTANCE: anchoring device has metal rod, upper fastening nut and conical clamp. End of reinforcement rod extending from foundation is used as the metal rod. Reinforcement rod has die-rolled section. Anchoring device comprises pin located in upper part thereof. Lover end of pin contacts reinforcement rod end. Conical clamp is formed as connecting converging downwardly conical coupler turned into upper cylindrical part. Upper cylindrical part has inner threading. Conical coupler is put on reinforcement rod end. Pin is screwed into coupler cylindrical part. Two or more wedges are inserted into conical coupler. Wedges have depressions corresponding reinforcement rod section ribs. Wedges form cone converging downwards and sinking down into conical coupler. Device includes lower back nut providing anchoring device operation in compression. Upper fastening nut provides anchoring device operation in tensioning. EFFECT: extended reinforcement rod having die-rolled section functionality, simplified column anchoring into foundation. 1 dwg

Description

The invention relates to building structures, for example, for anchoring eccentrically loaded columns and can also be used as a quick disconnect connection of working reinforcement of reinforced concrete structures, for example, for rigid connection of a beam with a column.

Known anchor bolt for connecting eccentrically loaded columns with the foundation [1, p. 394]. The disadvantage of this device is the need to manufacture special anchor bolts [2, p.137], having a smooth surface and poorly adhered to concrete. On a bulky anchor bolt, the thread must be cut on a lathe, and during construction, the thread on the anchor bolts is often damaged.

It is known that the anchor device adopted as the closest analogue contains a metal rod, an upper fixing nut and a conical clamp (see RU 2023812 C1, E 02 D 5/54, 11/30/1994).

The objective of the invention is to provide a reliable quick disconnect connection of an eccentrically loaded column with a foundation and reducing the material consumption and the complexity of manufacturing anchor devices.

The problem is solved due to the fact that in the anchor device containing a metal rod, an upper fixing nut and a conical clamp, according to the invention, the end of the reinforcing bar of the periodic profile protruding from the foundation is used as a metal rod, and the anchor device is provided in the upper part with a pin in contact with the lower end with the end face of the reinforcing bar of a periodic profile, and the conical clamp is made in the form of a connecting, tapering downward, conical coupling turning into the upper cylindrical a part having an internal thread, and the conical part of the coupling is worn on the end of the reinforcing bar of the periodic profile protruding from the foundation, and a stud is screwed into its cylindrical part, and two or more wedges with recesses corresponding to the ridges of the reinforcing bar of the periodic profile are inserted into the conical part of the coupling forming a cone, tapering downward and falling into the conical part of the coupling, while the device is equipped with a lower support nut, which ensures the operation of the anchor device for compression, and the upper fixing nut and provides job anchoring devices for tension.

The technical result of the invention is the expansion of the functionality of bar reinforcement of a periodic profile and the simplification of anchoring columns in the foundation.

The drawing shows an anchor device in section. The device comprises a metal rod in the form of a protruding end of the reinforcing bar 1 of a periodic profile and a conical clamp made in the form of a connecting, tapering downward, conical coupling 2, turning into the upper cylindrical part having an internal thread. Two or more wedges 3 are inserted into the conical part of the coupling 2 with recesses corresponding to the ridges of the reinforcing bar 1 of the periodic profile, forming a cone that tapers downward and falling into the conical part of the coupling 2. The conical part of the coupling 2 is put on the end of the reinforcing bar 1 of the periodic profile protruding from the foundation and a stud 4 is screwed into its cylindrical part, which contacts the bottom end with the end face of the reinforcing bar 1 of a periodic profile. The device is equipped with a lower support nut 5, which ensures the operation of the anchor device for compression, and the upper fixing nut 6 provides the operation of the anchor device in tension.

Base 5 and mounting 6 nuts make it easy to straighten the height of the column base plate.

The device operates as follows.

Under the action of pulling force N _ab it is transmitted to the coupling 2, tightly compressing the wedges 3 with recesses. Wedges with recesses securely capture the reinforcing bar 1 of the periodic profile for the ridges. The compressive force N _ab is transferred from the end of the stud 4 to the end of the reinforcing bar of a periodic profile.

The economic effect arises from simplifying the anchoring unit and expanding the field of application of periodic reinforcement as anchor rods.

A comparison of the anchor device according to the invention with an analogue shows its significant differences:

- for anchor rods standard reinforcement of a periodic profile is applied, which provides reliable anchoring in concrete;

- An anchor device is a quick-disconnect device installed on the valve outlets in the right place immediately before the installation of the columns;

- the device transmits both tensile and compressive forces, which allows you to include the anchor device in compression work like a pile;

- it is easy to organize the production of anchor devices for reinforcing bars of various diameters, since they are compact.

Literature

1. Mukhanov K.K. Metal constructions. - M.: Stroyizdat, 1978, - 512 p.

2. Sakhnovsky M.M. Handbook of constructor of welded constructions. - Dnepropetrovsk: Promin, 1975, - 273 p.

3. RU 2023812 C1, E 02 D 5/54, 11/30/1994.

Claims (1)

An anchor device comprising a metal rod, an upper fastening nut and a taper clamp, characterized in that the end of the reinforcing bar of the periodic profile protruding from the foundation is used as the metal rod, the anchor device being provided in the upper part with a pin contacting the lower end with the end of the reinforcing bar of the periodic profile and the conical clamp is made in the form of a connecting, tapering down cone coupling, passing into the upper cylindrical, having an internal thread, its a part, the conical part of the coupling being worn on the end of the reinforcing bar of the periodic profile protruding from the foundation, and a stud was screwed into its cylindrical part, and two or more wedges with recesses corresponding to the ridges of the reinforcing bar of the periodic profile, forming a cone, tapering downwards were inserted into the cylindrical part of the coupling and sinking into the conical part of the coupling, while the device is equipped with a lower support nut, which ensures the operation of the anchor device in compression, and the upper fixing nut ensures the operation of the anchor troystva tension.