JPH04120343A - Semi-prefabricated concrete reinforcement of mild steel bars for pillar hoop and reinforcement arranging method - Google Patents

Abstract

PURPOSE:To enhance the rod arrangement accuracy and easiness in execution of works by arranging a number of semi-hoop rods in channel or semicircular form placed parallelly to one another, and welding the ends of each semi-hoop rod rigidly to a rod as substitute for main rod. CONSTITUTION:A number of channel-shaped semi-hoop rods 1 are arranged parallelly at a certain spacing. The foremost faces at the ends of each semi-hoop rod 1 are welded to side faces of a rod 2 as substitute for the main rod, and thus a semi-prefabricated reinforcement A for pillar hoop is formed. Two of such reinforcements A are faced each other and assembled into a square section so that it encircles the pillar main rods 3 arranged in a construction site.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a cow-brake/X-brake reinforcing bar for a column hoop and a reinforcing method using the same.

[Prior art] Conventional column hoops are closed-type hoop bars or spiral reinforcing bars that are machined into a 0-shape or welded with a 7-inch weld, and are used in the cast-in-place construction method. Ta.

[Problem to be Solved by the Invention 1] However, the above-mentioned conventional column hoops have problems such as not being able to achieve a proper layout such as spacing, and being bulky to transport.

The present invention has been made in order to solve the above-mentioned conventional problems, and its purpose is to provide a semi-prefabricated reinforcing bar for column hoops that has high bar arrangement precision, workability, and is easy to transport, and a reinforcing method using the same. Our goal is to provide the following.

[Measures to solve the problem] The semi-prefabricated reinforcing bars for column hoops of the present invention consist of a large number of parallel reinforcing bars arranged in a cross-shaped or semicircular shape, and both ends of these semi-hoop bars. It is characterized by being composed of substitute main reinforcement reinforcement, each of which is integrally welded.

The tip end surface or side surface of the end of the mouth-shaped or semicircular semi-hoop reinforcement is welded to the main reinforcement reinforcement.

In addition, the reinforcing method using semi-prefabricated reinforcing bars for column hoops according to the present invention is such that the above-mentioned two semi-prefabricated reinforcing bars for column hoops are placed facing each other, and the openings are arranged so as to surround the main column reinforcing bars or steel columns built at the construction site. It is characterized in that it is assembled in a character or circular shape, and the adjacent main reinforcement substitute reinforcements are restrained by hook reinforcements.

The hook muscle is formed in a U-shape or a spiral shape.

[Examples] Examples of the present invention will be described below with reference to the drawings.

Fig. 1 shows an embodiment of a prefabricated reinforcing bar A for a column hoop according to the present invention, in which a large number of U-shaped half 7-7 bars 1 and two substitute main bars 2 are integrally welded. It is configured.

The large number of U-shaped cow hoop muscles 1 are arranged in parallel at predetermined intervals. The tip surfaces of both ends of the F-shaped bovine hoop muscle 1 are welded to the side surfaces of the main reinforcement substitute reinforcement 2, respectively.

Figure 2 shows two semi-prefabricated reinforcing bars A for column hoops configured as described above, facing each other and combined in a corner shape so as to surround the main column reinforcing bars 3 arranged at the construction site. As shown in FIGS. 3 and 4, a U-shaped hook muscle 4 is inserted into the adjacent main reinforcement substitute reinforcement 2.2 from the direction of the arrow to restrain it. 5 is a reinforcing bar for lap joints.

FIG. 5(A) shows another structure in which the side surface of the end of the U-shaped bovine hoop muscle 1 is welded to the main muscle substitute reinforcement 2, and the main muscle substitute reinforcement 2 is restrained by the seven-leg muscle 4. This shows an example. Alternative main reinforcement bars 2 such as round steel and deformed reinforcing bars mentioned above are! @
As shown in FIG. 5(B), it may be a plate 2'.

FIG. 6(A) shows another embodiment in which straight reinforcing bars are caulked as shown in the imaginary line to form seven hook bars 4', and FIG. 6(B) shows a large number of the above U-shaped hook bars 4. FIG. 6(C) shows an example in which a large number of the straight seven hook muscles 4' are lined up and integrated, and FIG. 6(D) shows the U-shaped hook muscles 4. Instead, another embodiment is shown in which a spiral hook muscle 4'' is restrained by wrapping it around the substitute main reinforcement reinforcement 2 while rotating it in the direction of the arrow.

Incidentally, the prefabricated reinforcing bars A for column hoops of the present invention can also be arranged around a steel column erected at a construction site.

Further, in the above embodiment, the half-hoop muscle 1 is formed in a mouth-shape, but the present invention is not limited to this, but it may be formed in a semicircular shape, a cow oval shape, a half polygonal shape, etc., and then assembled. Alternatively, a circular, elliptical, or polygonal column may be constructed.

[Effects of the Invention] (1) Since the F-shaped half-hoop reinforcement and the main reinforcement substitute reinforcement are integrally welded, it is possible to improve the reinforcement accuracy of the half-hoop reinforcement.

(2) In the cast-in-place method, the column hoop reinforcements can be easily assembled and have good workability.

(3) Main reinforcement alternative reinforcement can also be used as main reinforcement.

(4) Can be used for members such as SRC construction and SC construction.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of prefabricated reinforcing bars for column hoops according to the present invention, Fig. 2 is a perspective view of the prefabricated reinforcing bars assembled around the main column reinforcement, and Fig. 3 is a perspective view showing two sets of column hoops assembled by hook reinforcements. 4. An explanatory diagram showing an enlarged view of the state of restraint by the 7-strength reinforcement, and FIG. 5 (A) (B).
6A to 6D are explanatory diagrams each showing another example of the main muscle substitute reinforcement, and FIGS. 6A to 6D are explanatory diagrams each showing another example of the hook muscle. 1...Half-hoop muscle, 2...Main muscle substitute muscle, 2'...
Plate, 3...Column main reinforcement, 4.4', 4''...Hook bar, 5...Reinforcing bar for lap joint, A...Semi-prefabricated reinforcing bar for column hoop.

Claims (1)

[Scope of Claims] 1. Consisting of a large number of U-shaped or semicircular half-hoop reinforcements arranged in parallel, and main reinforcement substitute reinforcements in which both ends of these half-hoop reinforcements are each integrally welded. Semi-prefabricated rebar for column hoops featuring. 2. The semi-prefabricated reinforcing bar for a column hoop according to claim 1, wherein the tip end surface of the end of the U-shaped or semicircular semi-hoop reinforcing bar is welded to the main reinforcement substitute reinforcing bar. 3. The semi-prefabricated reinforcing bar for a column hoop according to claim 1, wherein the side surface of the end of the U-shaped or semicircular semi-hoop reinforcing bar is welded to the main reinforcement substitute reinforcing bar. 4. The two semi-prefabricated reinforcing bars for column hoops according to claims 1 to 3 are combined in a square or circular shape so as to face each other and surround the main column reinforcement or steel column built at the construction site. , a reinforcing method using semi-prefabricated reinforcing bars for column hoops, which is characterized in that adjacent main reinforcement substitute reinforcements are restrained and assembled using hook reinforcements. 5. The reinforcement method using semi-prefabricated reinforcing bars for column hoops according to claim 4, wherein the hook reinforcements are formed in a U-shape. 6. The reinforcement method using semi-prefabricated reinforcing bars for column hoops according to claim 4, wherein the hook reinforcements are formed in a spiral shape.