KR200230872Y1 - Reinforcing bar connector - Google Patents

Abstract

The present invention relates to a reinforced concrete joint which can completely resist the compression and tensile forces imposed on reinforcing bars by mechanical connection of reinforcing bars in reinforced concrete structures such as bridges and buildings.

The reinforcing joint of the present invention is composed of upper and lower reinforcing steel joint plates 10c and 10d, a reinforcing bar spacer 35 and an inner conical frusto-conical conical barrel 20.

The upper and lower reinforcing joint plates 10c and 10d have a substantially semicircular or arcuate cross section and are formed on the inner peripheral surface of a deformed reinforcing bar made up to be staggered on the upper and lower sides and on upper and lower engagement grooves 32c and 32d, (12c, 12d) are vertically asymmetrically arranged, and the other inner circumferential surface is formed by a penetration plate (11) formed of a sharp sawtooth or a mountain-like crest of a female screw or a plurality of sharpened protrusions, And a reinforcing bar spacer 35 is inserted into the space between the end portions so as to prepare for an excessive compressive force.

On the other hand, the outer peripheral surface of the upper and lower reinforcing plate joints 10c and 10d is formed into a frusto-conical shape with a gentle slope and inserted into the conical cones 20 having a gentle conical inner circumferential surface with a gentle slope, The upper and lower bars 32c and 32d of the reinforcing bars are tightly fitted into the engaging shoulder grooves 12c and 12d of the upper and lower reinforcing plate joints so that the reinforcing bars 10c and 10d are press- A fine projection of the reinforcing bars in the compression or tensile force acting on the structure by infiltrating the infiltration surface 11 such as a serration, a mountain of a screw, and a plurality of projections or the like, To provide a perfect reinforcement that is free from any relaxation or release phenomenon.

Description

Reinforcing bar connector < RTI ID = 0.0 >

The present invention relates to a reinforced concrete joint which can completely resist the compression and tensile forces imposed on a reinforcing bar by a mechanical connection of reinforcing bars in a reinforced concrete structure such as a bridge and a building, and a method of reinforcing the reinforcing concrete.

Many types of reinforced concrete joints have been developed. Most of the reinforced concrete joints correspond to the compression and tensile forces of the reinforcing bars by providing the concave inner circumferential surface engaging jaw grooves 12 to allow the deformed reinforcing bars 32 to be caught. However, Since the ribs 32c and 32d on the rib side and the lower side are not aligned on the straight line in the KS standard but are deviated to some extent and are manufactured and sold in this way, most of the conventional reinforcing joints have the fastening grooves 12 So that both the upper and lower reinforcing nodes 32c and 32d can be inserted. As a result, when either tensile force or compressive force acts on the reinforcing bars, only one of the upper and lower nodes can resist,

On the other hand, most of the screw-type reinforced concrete joints as shown in FIG. 5 are always maintained in a fine stream during the manufacturing and construction processes. When the compressive and tensile stresses alternately act repeatedly as in the case of an earthquake or a continuous bridge, There are many problems such as the occurrence of minute disturbance of slip and slip, and consequent breakage of reinforced concrete structures due to stress concentration and development as a cause of serious accidents.

The object of the present invention is to solve the above problems and to provide a method for preventing stress concentration caused by minute distant movement or slip of a reinforcing bar at the time of an earthquake or repetitive action of compressive and tensile forces or causing breakage of a reinforced concrete structure And to provide a complete and economical reinforcing steel joint which can prevent the occurrence of the phenomenon.

1 is an exploded perspective view of a reinforcing bar.

Fig. 2 is an exploded longitudinal sectional view of the reinforcing bar. Fig.

3 is a vertical cross-sectional view of the reinforcing joint of the reinforcing bar joint.

4 is a cross-sectional view of a reinforcing joint of a reinforcing bar joint.

5 is an exploded view of a conventional reinforcing bar screw-in type reinforcing bar joint

Figure 6 is an exploded view of a conventional torque bolt threaded reinforcement

DESCRIPTION OF THE REFERENCE NUMERALS

10: reinforcing plate 30: end of reinforcing bar

10c: upper reinforcing plate 10d: lower reinforcing plate

11: penetration surface such as sawtooth, mountain type, etc. 12: reinforced bar joint jaw groove

12c: an upper node engaging jaw groove 12d: a lower node jaw groove groove

15: Reinforced joint plate combined body circumferential surface serrated band

20: Inner circumference truncated conical coupling cone 22: coupling cone inner tooth serrated band

31: Rib of deformed bar 32: Bar of deformed bar

32c: a node on the upper side of the rib 32d: a node on the lower side of the rib

33: Reinforced body part (excluding ribs and joints) 35:

40: Female threaded sleeve of conventional inflatable threaded reinforcement

41: Internal thread of a conventional inflation screw type reinforcement

42: Existing inflated screw threaded reinforcement male part

44: Existing torque bolt-type reinforcement joint

45: Inner circumference of conventional torque bolt type reinforcement

46: Jaw groove of inner circumference of existing torque bolt type reinforcement

The upper and lower reinforcing bars 10c and 10d are formed into a substantially semicircular or arcuate cross-section, and the upper and lower ribs 31, The engaging jaw grooves 12c and 12d are provided asymmetrically in the up and down directions in accordance with the positions of the nods 32c and 32d, and the width and the length of the engaging jaw grooves are made exactly the same.

The inner circumferential surfaces other than the engaging shoulder grooves 12c and 12d are formed by a penetrating surface 11 of a sharp sawtooth or a female thread or a plurality of sharpened protrusions or the like while the upper and lower reinforcing bars 10c, 10d) is formed into a truncated conical shape with a gentle slope, and a frusto-conical coupling cone (20) is disposed inside the truncated cone (20) to be inserted and coupled by a hydraulic jack or air hammer. (10c, 10d) are provided on both side contact surfaces with low-sawed strips (15, 22) to engage with each other at a maximum inserted position, and on the other hand, a newly developed strong metal cold A method of applying or filling a welding agent or a metal repairing agent to bond the metal reinforcing materials to each other without loosening or loosening. (10c, 10d) after inserting the spacing member (35) such as an iron plate or a reinforcing steel slab of a steel plate or a reinforcing steel slab, it is possible to prevent slipping and minute disturbance And to provide a complete and economical reinforcing steel joint capable of preventing the destruction of the reinforced concrete structure due to the complete restraint and the high degree of seriousness.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Figs. 1 and 2 are exploded perspective views and exploded longitudinal sectional views of the reinforcing joint of the present invention, in which the reinforcing joint plates 10c and 10d are formed as upper and lower members having a substantially semicircular or arcuate cross section, The positions of the upper and lower stopping grooves 12c and 12d are asymmetrical with respect to the positions of the upper and lower nodes 32c and 32d installed asymmetrically, It is precisely machined

3 and 4 are a vertical sectional view and a transverse sectional view showing the state of the reinforcing joints of the present design reinforcing joints, and the upper and lower reinforcing joint plates 10c and 10d are separately separated from each other, The nod 32d is aligned with the engaging jaw groove 12d of the lower reinforcing plate 10d and the spacing member 35 of the round steel plate or the reinforcing bar having a thickness corresponding to the blank interval between the both side reinforcing ends 30 The upper and lower reinforcing joint plates 10c and 10d are integrally formed by pressing the upper and lower reinforcing joint grooves 12c and 12c of the upper reinforcing joint plate 10c.

The outer peripheral surface of the integrated reinforcing joint plate is formed into a truncated conical shape having a gentle gradient with a low sawtoothed band 15 and an outer peripheral truncated conical barrel 20 having an inner circumferential truncated conical shape with an inclined low sawtooth band 22 The reinforcing bars 32c and 32d are strongly inserted into the upper and lower engaging shoulder grooves 12c and 12d so that the reinforcing bars 32c and 32d are firmly inserted into the upper and lower engaging shoulder grooves 12c and 12d, It is possible to prevent slip of the reinforcing bar and to prevent minute disturbance of movement of the connecting reinforcing bars even when the sharp penetration plate 11 is seized, or to prevent tensile compressive repeated loads such as continuous bridges from breaking down the reinforced concrete structure due to stress concentration Providing a complete and economical reinforcement.

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Claims (4)

The positions of the engaging shoulder grooves 12 of the upper and lower reinforcing plate joints 10c and 10d having a substantially semicircular or arcuate cross section are vertically asymmetric with respect to the position of the reinforcing bars on the lower side of the reinforcing bars 32c and 32d, The inner circumferential surfaces other than the engaging shoulder grooves 12 are formed by penetration surfaces 11 of a sharp sawtooth or a female thread or a plurality of sharpened protrusions or the like while the upper and lower reinforcing plates 10c and 10d ) Coupling body is formed into a truncated conical shape with a gentle unidirectional inclination, and an engaging conical tube (20) formed of an inner circumferential truncated conical hollow sleeve with a gentle unidirectional inclination is disposed on the outer circumferential portion thereof, And joining the reinforcing bars. The method of claim 1, wherein A plurality of small thicknesses of various thicknesses are formed between the spaces generated between the end portions 30 of the side joints 30 in accordance with the irregular cutting positions of the end portions of the joint reinforcing bars and the positional relationship between the positions of the joints 32 and the engagement grooves 12 of the reinforcing joint plate 10. [ Characterized by the provision of a spacer (35) made of a round steel plate or a short reinforcing bar or the like and the interposition of the spacer (35). The method of claim 1, wherein The low-saw-like bands 15 and 22 are formed on the inner circumferential surface of the truncated conical outer peripheral surface of the combined assembly of the upper and lower reinforcing bars 10c and 10d and the inner inclined surface of the outer conical connecting tube 20 inserted and brought into contact therewith, And the reinforcing joints (10c, 10d) and the coupling cones (20) are not loosened or separated from each other when the reinforcing joints (10c, 10d) are caught at the maximum inserted positions. The method of claim 1, wherein A metal cold welding agent having a compressive strength of 1600 to 2000 kg / cm ² recently developed in the vicinity of the inside and the inside of the joint reinforcing end 30 and the reinforcing joint plate 10 and the coupling cone 20, And a metal repairing agent is applied or agitated in an appropriate amount before bonding.