JPH066552U - Shear reinforcement with integrated accessory muscle - Google Patents

Abstract

(57) [Summary] [Purpose] By forming the shear reinforcements and auxiliary shear reinforcements used for columns and beams with a single reinforcing bar, making these bindings unnecessary and preventing disorder and pitch deviations. At the same time, without the need for skilled workers, the construction of frameworks for columns and beams is labor-saving, and also
(EN) Provided is a reinforcement reinforcement integrated with secondary reinforcement, which facilitates construction management, enhances the strength of columns and beams to be constructed, has excellent earthquake resistance, and further can save binding wires. [Structure] The auxiliary reinforcement integrated shear reinforcing bar 10 comprises a shear reinforcing bar 11 mounted outside the main reinforcing bar of a column or a beam of a building, and an auxiliary shear reinforcing bar 12 mounted inside the main reinforcing bar. Is formed by bending a continuous rebar into a predetermined shape and welding both ends thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a secondary reinforcement-integrated shear reinforcement that is attached to a main reinforcement such as a column or a beam of a building.

[0002]

[Prior art]

 Conventionally, concrete columns and beams of buildings have built-in reinforcing bars to maintain their strength. The frame of the reinforcing bar used in the conventional column will be described below. As shown in FIG. 13, a frame 70 of a reinforcing bar used for a conventional column is a column bar 71 which is an example of a plurality of main bars arranged side by side in the height direction of the column, and a column bar 71 surrounding the column bar 71 is about 50 mm or more. Rib bars 72, which are an example of a rectangular shear reinforcing bar arranged at intervals of about 200 mm, and sub-reinforcing bars, which are an example of a sub-shear reinforcing bar hooked on the columnar bar 71 with a hook 74. And 73. The strips 72 are formed by bending the reinforcing bars so as to surround the columnar bars 71 arranged side by side, and then welding both ends of the reinforcing bars together. In FIG. 13, reference numeral 76 is a spacer attached to the stirrup 72 in order to maintain a predetermined distance between the form frame and the columnar bar 71 (not shown). The method for attaching the stirrup 72 and the sub stirrup 73 to the columnar 71 is to cover the stirrup 72 from above the columnar 71 and arrange the stirrup at a predetermined height, and then to attach the sub stirrup 73 to the stirrup 72. It is provided on the inner side of the column, and the hook 74 is hooked on the columnar bar 71, and is further wound around the columnar bar 71, the belt bar 72 and the hook 74 by using the binding line 75, and is bundled. The reinforcing bars inside the beam also have a reinforcing structure substantially similar to the frame 70 of the column.

[0003]

[Problems to be solved by the device]

 However, in order to complete the frame 70 of the column using the above-described conventional stirrups 72 and collateral stirrups 73, a large number of columns must be mounted in proportion to the height and the number of the columns, but Since the muscles 72 and the sub-rebar muscles 73 are not integrated, there is a problem that the band reinforcements 72 and the sub-rebar muscles 73 attached to the columnar muscles 71 are disturbed in the binding or the pitch is displaced, and it takes a lot of labor and time to check them. There was a point. The disorder of the binding of the stirrup bar 72 and the sub stirrup bar 73 and the pitch shift have a problem that the strength of the completed concrete column is reduced, the transmission of stress is interrupted, and the earthquake resistance is insufficient. Since both the stirrup bar 72 and the sub stirrup bar 73 are bound to the column bar 71, there is a problem that the binding line 75 is consumed much and the cost is increased. There is also a problem that a skilled worker is required to perform the installation while grasping and considering the stirrup bar 72 and the sub stirrup bar 73 separately. The above problems occur not only in the column frame but also in the beam frame.

The present invention has been made in view of such circumstances, and by forming the shear reinforcing bar and the auxiliary shear reinforcing bar used for columns and beams with one rebar, the binding of these is unnecessary. In addition to preventing disorder of binding and pitch deviation, labor saving of construction of columns and beams without requiring skilled workers, easy construction management, and strengthening of columns and beams to be constructed to increase earthquake resistance It is an object of the present invention to provide a shear strengthening muscle with an integral vice muscle, which is excellent in, and can further reduce the number of binding wires.

[0005]

[Means for Solving the Problems]

 The secondary reinforcement-integrated shear reinforcement of claim 1 which meets the above purpose comprises a secondary reinforcement attached to the outside of the main reinforcement of a column or beam of a building and an auxiliary reinforcement attached to the inside of the main reinforcement. It is formed by bending one continuous reinforcing bar into a predetermined shape and welding both ends thereof. The secondary reinforcement-integrated shear reinforcement of claim 2 comprises: a reinforcement reinforcement attached to the outside of the main reinforcement of a column or a beam of a building; and a secondary reinforcement reinforcement attached to the inside of the main reinforcement. A hook formed by bending a continuous reinforcing bar of a book into a predetermined shape and further bending both ends of the reinforcing bar inward is provided. Here, the main reinforcement, the shear reinforcement, and the auxiliary reinforcement are the column reinforcement, the stirrup, and the secondary reinforcement when they are used for columns, and the beam reinforcement and the stirrup when they are used for beams, respectively. , Says the streak.

[0006]

[Action]

 In the shear reinforcement with integrated secondary reinforcement according to claim 1, since the secondary shear reinforcement is formed of one reinforcing bar together with the shear reinforcement, the shear reinforcement and the secondary reinforcement are added to the main reinforcement of the column or beam to be constructed. To attach the shear reinforcement, if the shear reinforcement is attached to the main reinforcement, the supplementary shear reinforcement is also attached. Therefore, it is possible to construct without installing the supplementary reinforcement. In addition, since it is not necessary to consider the binding weaving and pitch deviation of the shear reinforcing bar and the auxiliary shear reinforcing bar in the construction management, it is sufficient to focus on the binding of the main reinforcing bar and the shear reinforcing bar, and the inspection points should be reduced. be able to. According to the second aspect of the present invention, in the secondary reinforcement integrated shear reinforcement, the same reinforcement reinforcement reinforcement and secondary auxiliary reinforcement reinforcement are attached to the main reinforcement as in the first auxiliary reinforcement reinforcement reinforcement, and the hook is attached to the main reinforcement. It is possible to hook and attach the shear reinforcement, and it is possible to securely attach the shear reinforcement and the auxiliary reinforcement to the main reinforcement.

[0007]

【Example】

 Next, an embodiment of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. (Embodiment 1) FIG. 1 is a perspective view of a reinforced secondary muscle reinforcement bar according to a first embodiment of the present invention, and FIG. 2 is a state in which the secondary reinforced muscle reinforcement column is attached to the main muscle. FIG. 3 is an explanatory view showing a state in which the auxiliary reinforcement-integrated shear reinforcing bar is attached to the main bar. As shown in FIG. 1, the secondary reinforcing bar type shear reinforcing bar 10 according to the first embodiment of the present invention is an example of the shear reinforcing bar that is formed by using one rebar and bending it at a required location. A portion 11 and a sub-belt portion 12, which is an example of a sub-shear reinforcing bar, are provided, and further, both ends of the reinforcing bar are welded to each other. Next, a method of attaching the secondary reinforcing bar integrated shear reinforcing bar 10 to the column bar 13 according to the first embodiment of the present invention will be described. As shown in FIG. 3, the auxiliary reinforcing bar integrated shear reinforcing bar 10 is provided at a predetermined height by sequentially covering a columnar bar 13 which is an example of a plurality of main reinforcing bars standing on the floor surface from above in order. Then, as shown in FIG. 2, a wire 14 which is an example of a binding wire is used to bind the columnar bar 13 and the reinforced bar portion 11 of the auxiliary bar integral type shear reinforcing bar 10. In addition, reference numeral 15 is a spacer attached to the band portion 11.

As described above, according to the first embodiment, since the reinforced secondary muscle-integrated shear reinforcing bar 10 is provided with the stirrup bar portion 11 and the collateral stirrup portion 12 continuously, the stirrup bar portion 11 is provided. The sub-reinforcing bars 12 are both attached to the post-reinforcing bars 13 by the proper attachment to the post-reinforcing bars 13, so that the binding of the sub-reinforcing bar portions 12 and the pitch deviation do not occur. Therefore, the column constructed by using the reinforcement reinforcement integrated with the secondary reinforcement 10 has no interruption of stress transmission because the reinforcement 11 and the supplementary reinforcement 12 are continuous, and has high strength and excellent earthquake resistance. Further, the auxiliary reinforcement integrated shear reinforcement bar 10 can be tied to the column reinforcement 13 without considering the installation of the secondary reinforcement 12, so that even a non-skilled worker can properly and easily install it. it can. Further, in order to attach the auxiliary reinforcement-integrated shear reinforcing bar 10 to the columnar bar 13, it is sufficient to bind only the strap reinforcement 11 to the columnar bar 13, and the consumption of the wire 14 can be reduced.

(Second Embodiment) FIG. 4 is a plan view of a secondary reinforcement integrated shear reinforcement according to a second embodiment of the present invention. As shown in FIG. 4, the secondary reinforcement integrated shear reinforcing bar 16 according to the second embodiment of the present invention includes one reinforcing bar similar to the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by bending and then welding both ends. The difference from the reinforced secondary muscle-reinforced shear reinforcing bar 10 according to the first embodiment is that one side of the secondary reinforced muscle portion 18 is formed adjacent to the reinforced muscle portion 17 to form the reinforced secondary muscle-reinforced shear reinforcing muscle 16. is there. The method of attaching the auxiliary reinforcement integrated shear reinforcement 16 to the column reinforcement and its effect are the same as in the case of the first embodiment, and therefore their explanations are omitted.

(Embodiment 3) FIG. 5 is a plan view of a secondary reinforcement integrated shear reinforcement according to a third embodiment of the present invention. As shown in FIG. 5, the secondary reinforcement integrated shear reinforcing bar 19 according to the third embodiment of the present invention is composed of one reinforcing bar similar to the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by bending and then welding both ends. The difference from the reinforced secondary reinforcement reinforcing member 10 according to the first embodiment is that the vertices of the quadrilateral auxiliary band portion 21 are formed so as to be located at the central portions of the lateral sides of the zonal reinforcement portion 20. The point is that the integrated shear reinforcing bar 19 is used. The method of attaching the secondary reinforcement-integrated shear reinforcing bar 19 to the column reinforcement and its effect are the same as in the case of the first embodiment, and therefore their explanations are omitted.

(Embodiment 4) FIG. 6 is a plan view of a secondary reinforcement integrated shear reinforcement according to a fourth embodiment of the present invention. As shown in FIG. 6, the secondary reinforcement integrated shear reinforcing bar 22 according to the fourth embodiment of the present invention is composed of one reinforcing bar similar to the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by bending and then welding both ends. The difference from the reinforced muscle integrated type shear reinforcing bar 10 according to the first embodiment is that a quadrilateral band reinforcing portion 23 is provided, and the vice belt reinforcing portion 24 is formed to cross in a cross shape. This is the point where the shear reinforcing bar 22 is used. The method of attaching the auxiliary reinforcement-integrated shear reinforcement 22 to the column reinforcement and its effect are the same as in the case of the first embodiment, and the explanation thereof is omitted.

(Fifth Embodiment) FIG. 7 is a plan view of a secondary reinforcement integrated shear reinforcement according to a fifth embodiment of the present invention. As shown in FIG. 7, the secondary reinforcement integrated shear reinforcing bar 25 according to the fifth embodiment of the present invention is composed of one rebar like the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by bending and then welding both ends. The difference from the shear reinforcing bar 10 with integrated secondary muscles according to the first embodiment is that a rectangular strip portion 26 is provided and the secondary strip portion 27 is formed so that two rectangles intersect each other. This is the point where the body type shear reinforcement bar 25 is used. The method of attaching the auxiliary reinforcement-integrated shear reinforcement 25 to the column reinforcement and its effect are the same as in the case of the first embodiment, and therefore the explanation thereof is omitted.

(Sixth Embodiment) FIG. 8 is a plan view of a secondary reinforcement-integrated shear reinforcement according to a sixth embodiment of the present invention. As shown in FIG. 8, the secondary reinforcement integrated shear reinforcing bar 28 according to the sixth embodiment of the present invention is composed of one reinforcing bar similar to the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by using and bending. The difference from the reinforced secondary muscle reinforcing shear bar 10 according to the first embodiment is that the reticular portion 29 having the same shape as the secondary zonal reinforcing portion 12 of the secondary muscle integrated shear reinforcing muscle 10 of the first embodiment, and After forming the sub-reinforcing bar portion 30, the both ends of the reinforcing bar are bent without being welded, and hooks 31 and 32 are provided to form the sub-reinforcing unit type shear reinforcing bar 28. In the method of attaching the secondary reinforcement integrated shear reinforcing bar 28 to the column reinforcement, since the secondary reinforcement integrated shear reinforcing bar 28 is provided with the hooks 31 and 32, the hooks 31 and 32 are respectively attached to the corners and sides. The secondary reinforcing bar 28 is attached to each of the columnar bars positioned in the section so as to be attached thereto. The effect is similar to that of the first embodiment, and since the hooks 31 and 32 are provided, it is possible to more surely attach the auxiliary reinforcement integrated shear reinforcement 28 to the column reinforcement. .

(Embodiment 7) FIG. 9 is a plan view of a secondary reinforcement integrated shear reinforcement according to a seventh embodiment of the present invention. As shown in FIG. 9, the secondary reinforcement integrated shear reinforcing bar 33 according to the seventh embodiment of the present invention includes one reinforcing bar similar to the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by using and bending. The difference from the reinforcement reinforcement integrated with shear reinforcement 10 according to the first embodiment is that the auxiliary reinforcement 35 is formed so as to be substantially parallel to one of the sides of the reinforcement 34 and each of both ends of the reinforcing bar is formed. The point is that bending processing is performed to provide hooks 36 and 37 to form the auxiliary reinforcement integral shear reinforcement reinforcement 33. According to the method of attaching the auxiliary reinforcement integrated shear reinforcement muscles 33 to the column reinforcement, since the auxiliary reinforcement integrated shear reinforcement muscles 33 are provided with the hooks 36 and 37, the column reinforcements located at the corners and the side portions are provided. The hooks 36 and 37 are hooked on the respective members, and the auxiliary reinforcement-integrated shear reinforcing bar 33 is attached. Since the effect is to hook each of the hooks 36 and 37 on each of the column reinforcements located at two places, it is possible to more reliably attach the auxiliary reinforcement integrated shear reinforcement 33 to the column reinforcement.

(Embodiment 8) FIG. 10 is a plan view of an auxiliary muscle-integrated shear reinforcement according to an eighth embodiment of the present invention. As shown in FIG. 10, the secondary reinforcement integrated shear reinforcing bar 38 according to the eighth embodiment of the present invention is composed of one reinforcing bar similarly to the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by using and bending it. Although the stirrup portion 39 and the vice stirrup portion 40 of the auxiliary reinforcement integrated shear reinforcement 38 have the same shape as the auxiliary reinforcement integrated shear reinforcement 19 (see FIG. 5) according to the third embodiment, The hooks 41 and 42 are formed by bending both ends of the reinforcing bar. Since the method and effect of attaching the auxiliary reinforcement integrated shear reinforcing bar 38 to the column reinforcement are similar to those of the secondary reinforcement integrated shear reinforcing bar 28 according to the sixth embodiment, description thereof will be omitted.

(Embodiment 9) FIG. 11 is a plan view of a secondary reinforcement-integrated shear reinforcement according to a ninth embodiment of the present invention. As shown in FIG. 11, the secondary reinforcement integrated shear reinforcing bar 43 according to the ninth embodiment of the present invention is composed of one reinforcing bar similarly to the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by using and bending it. The stirrup portion 44 and the vice stirrup portion 45 of the secondary reinforcement-integrated shear reinforcement 43 have the same shape as the secondary reinforcement-integrated shear reinforcement 22 according to the fourth embodiment (see FIG. 6). The hooks 46 and 47 are formed by bending both ends of the hook. The method and effect of attaching the secondary reinforcement integrated shear reinforcing bar 43 to the column reinforcement are similar to those of the secondary reinforcement integrated shear reinforcing bar 28 according to the sixth embodiment, and therefore the description thereof will be omitted.

(Embodiment 10) FIG. 12 is a plan view of a secondary reinforcement integrated shear reinforcement according to a tenth embodiment of the present invention. As shown in FIG. 12, the secondary reinforcement integrated shear reinforcing bar 48 according to the tenth embodiment of the present invention is one rebar similar to the secondary reinforcement integrated shear reinforcing bar 10 according to the first embodiment. It is formed by bending using. The stirrup portion 49 and the vice stirrup portion 50 of the auxiliary reinforcement integrated shear reinforcement 48 have the same shape as the auxiliary reinforcement integrated shear reinforcement 25 (see FIG. 7) according to the fifth embodiment. The hooks 51 and 52 are formed by bending both ends of the reinforcing bar. The method and effect of attaching the auxiliary reinforcement integrated shear reinforcement 48 to the column reinforcement are the same as those of the auxiliary reinforcement integrated shear reinforcement 28 according to the sixth embodiment, and therefore the description thereof will be omitted.

The stirrup portion 17 and the sub stirrup portion 18 in FIG. 4, the stirrup portion 20 and the corner portion of the sub stirrup portion 21 in FIG. 5, the stirrup portion 23 and the substirruple portion 24 in FIG. 7, the stirrup portion 26 and the sub stirrup portion 27, the stirrup portion 29 and the substirruple portion 30 in FIG. 8, the stirrup portion 34 and the substirrupple portion 35 in FIG. 9, the stirrup portion 39 in FIG. 11 and the stirrups 44 and vice stirrups 45 of FIG. 11, and the stirrups 49 and vice stirrup 50 of FIG. In order to make it easier to understand the state of formation, the adjacent portions of are shown as being adjacent in the lateral direction. Are formed by being vertically polymerized. However, it is of course possible to laterally adjoin the stirrup portion, the sub stirrup portion and the like as shown in the drawing. As described above, various types of auxiliary reinforcement integrated shear reinforcements (10, 16, 19, 22, 25, 28, 33, 38, 43, 48) have been described. As long as it forms a muscular portion and a sub-belt portion, it is not limited to the shape of the sub-muscle integral type shear reinforcing bar described in the first to tenth embodiments, and a plurality of columns used for the frame of a column can be used. It is also possible to form the stirrup portion and the sub stirrup portion in a desired shape corresponding to the cross section of the shape formed by the column bars. Although both ends of the reinforcing bars are connected by welding in the first to fifth embodiments, it is also possible to connect them by using members such as joints. The hooks (31, 32, 36, 37, 41, 42, 46, 47, 51, 52) can be formed at any position. The auxiliary reinforcement integrated shear reinforcement (10, 16, 19, 22, 25, 28, 33, 38, 43, 48) has been described as being attached to the column reinforcement 13 for use. Reinforcing bars can also be used for beam reinforcement as stirrup and secondary stirrup of the beam.

[0019]

[Effect of device]

 Since the shear reinforcing bar and the auxiliary shear reinforcing bar are formed continuously by using one rebar, the secondary reinforcing bar integrated shear reinforcing bar according to claims 1 and 2 has the following effects. Occurs. If the shear reinforcement is properly attached to the main reinforcement, the auxiliary reinforcement is also attached to the main reinforcement, so that there is no binding disorder or pitch deviation of the auxiliary reinforcement integrated shear reinforcement. When the above-mentioned auxiliary reinforcement integrated shear reinforcement is used for columns and beams, the shear reinforcement and the auxiliary reinforcement are formed continuously, so there is no interruption of stress transmission and greater strength and excellent earthquake resistance are realized. can do. Since the auxiliary reinforcement integrated shear reinforcement is formed by continuously forming the auxiliary reinforcement and the shear reinforcement, if the shear reinforcement is tied to the main reinforcement, the auxiliary reinforcement integrated shear reinforcement can be attached to the main reinforcement. Even if it is not a skilled worker, it can be installed accurately and easily, and the labor of construction can be saved. Also, if the shear reinforcement is attached to the main reinforcement, the auxiliary shear reinforcement is also attached together, so it is possible to prevent mistakes in the attachment of the auxiliary reinforcement to the main reinforcement, and to secure the binding points between the shear reinforcement and the main reinforcement. It suffices to focus on inspections, and construction management can be performed easily. By attaching the shear reinforcements to the main reinforcements, the auxiliary shear reinforcements can also be attached, so that it is possible to suppress the consumption of binding wires and reduce the construction cost. In particular, in the shear reinforcement with integrated secondary reinforcement according to claim 2, since the hook formed on the shear reinforcement can be hooked on the main reinforcement, the attachment of the shear reinforcement and the auxiliary reinforcement to the main reinforcement is possible. Can also be more certain.

[Brief description of drawings]

FIG. 1 is a perspective view of a shear reinforcing bar with integrated secondary muscle according to a first embodiment of the present invention.

FIG. 2 is a perspective view of an essential part showing a state where the secondary reinforcement-integrated shear reinforcement column is attached to the main reinforcement.

FIG. 3 is an explanatory view showing a state in which the accessory reinforcement integrated shear reinforcement is attached to the main reinforcement.

FIG. 4 is a plan view of a secondary reinforcement integrated shear reinforcement according to a second embodiment of the present invention.

FIG. 5 is a plan view of a secondary reinforcing bar integrated shear reinforcing bar according to a third embodiment of the present invention.

FIG. 6 is a plan view of a secondary reinforcement integrated shear reinforcement according to a fourth embodiment of the present invention.

FIG. 7 is a plan view of a secondary reinforcement-integrated shear reinforcement according to a fifth embodiment of the present invention.

FIG. 8 is a plan view of a secondary reinforcement integrated shear reinforcement according to a sixth embodiment of the present invention.

FIG. 9 is a plan view of a secondary reinforcement integrated shear reinforcement according to a seventh embodiment of the present invention.

FIG. 10 is a plan view of a secondary reinforcement-integrated shear reinforcement according to an eighth embodiment of the present invention.

FIG. 11 is a plan view of a secondary reinforcement-integrated shear reinforcement according to a ninth embodiment of the present invention.

FIG. 12 is a plan view of a secondary reinforcement-integrated shear reinforcement according to a tenth embodiment of the present invention.

FIG. 13 is a perspective view of an essential part showing a state in which a stirrup and an accessory stirrup are attached to a conventional columnar bar.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Reinforcement-type shear reinforcement bars 11 Reinforcing bar sections 12 Sub-reinforcing bar sections 13 Column reinforcements 14 Wires 15 Spacers 16 Reinforcement-integrating shear reinforcement bars 17 Belt-reinforcing sections 18 Sub-reinforcing bar sections 19 Sub-reinforcement-type shear reinforcement bars 20 Girder 21 vice muscular 22 vice muscular integrated shear reinforcement 23 muscular band 24 vice muscular 25 muscular integrated shear reinforced 26 muscular 27 vice muscular 28 muscular integrated shear reinforced 29 Girth band part 30 Vice girder part 31 Hook 32 Hook 33 Girth reinforcement reinforcement type 34 Reinforcement band 34 Girder band 36 Vice girder part 36 Hook 37 Hook 38 Girth force reinforcement type girth reinforcement 39 Girth band part 40 Girth band 40 Part 41 Hook 42 Hook 43 Secondary muscle integrated shear reinforcement bar 44 Girth band 45 Secondary band reinforcement 46 Hook 47 Hook 48 Secondary muscle integrated shear reinforcement bar 49 Girth band 50 Vice band 51 Hook 52 Hook

Claims (2)

[Scope of utility model registration request] 1. A continuous reinforcing bar is bent into a predetermined shape with a shear reinforcing bar attached to the outside of a main bar of a pillar or a beam of a building and a sub-reinforcing reinforcing bar installed to the inside of the main bar. A shear reinforcing bar with integrated secondary muscles, which is formed by welding both ends thereof. 2. A continuous reinforcing bar is bent into a predetermined shape with a shear reinforcing bar attached to the outside of a main bar of a building pillar or beam and a sub-reinforcing reinforcing bar installed to the inside of the main bar, Furthermore, the auxiliary reinforcing bar integrated shear reinforcing bar is characterized by comprising hooks formed by bending both ends of the reinforcing bar inward.