JPH0835332A - Reinforcement arranging structure of beam main reinforcement at joint part of src made outer pillar and beam - Google Patents

Abstract

PURPOSE:To simplify reinforcement of a joint part and to efficiently carry out work by fixing an enclosed type filling style screw anchoring apparatus on an external wall side end part of a beam main reinforcement by way of making it pass through a steel frame of a beam main reinforcement SRC made outer pillar which is a screw reinforcing bar or making it pass through a clearance between the side of this reinforcing bar and a pillar main reinforcement. CONSTITUTION:A beam main reinforcement 2 which is a specified number of screw reinforcing bars is inserted through a through hole drilled on a pillar steel frame 4 from the side of a beam. At the time of using a through type filling stype screw anchoring apparatus 1B, it is inserted through the beam main reinforcement 2 in the state where the through type filling style screw anchorin apparatus 1B is fit on the main reinforcement 2. An end part of the beam main reinforcement 2 is projected to the side of an external wall from the pillar steel frame 4 by specified length, an enclosed type filling style screw anchoring apparatus 1A is screwed and temporarily fixed on the end part, and it is fixed by filling a grout material from a grout material injection port 3. In case of using the through type filling style anchoring apparatus 1B, the through type filling style screw anchoring apparatus 1A is screwed and at a beam side position of a pillar main reinforcement and temporarily fixed, and it is fixed by filling the grout material from the grout material injection port 13. Consequently, it is possible to secure anchorage of the beam main reinforcement on pillar concrete.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing structure of a main beam of a beam at a joint portion of an SRC external column used for a high-rise building or a large span structure with a beam.

[0002]

2. Description of the Related Art Is the end of the main beam of the beam at the joint with the beam of the SRC external column made into a U-shape in which the ends of the two main beams of the beam are interconnected (see FIG. 5)? ) Generally, the ends of the main beams of each beam are bent into L-shapes and arranged to secure a fixed length to the column concrete.

[0003]

[Problems to be Solved by the Invention] At the joint of the SRC external column with the beam, the main column of the column, the column hoop,
It is necessary to arrange beam main bars, joint reinforcements, etc., and in addition to arranging the ends as U-shaped or L-shaped in order to secure the anchoring length of the beam main bars, the bar arrangement becomes congested. The order of construction becomes complicated and the work of arranging becomes difficult, which requires a lot of labor and time.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a threaded reinforcing bar is used as a beam main bar, and a closed type screw fixing device is fixed to the end of the beam main bar to secure anchoring to column concrete. As a result, it is possible to simplify the rebar arrangement of the joint with the beam of the SRC external column that has been congested because it was traditionally arranged as a U-shape or L-shape, and to improve the efficiency of the bar arrangement work. It is intended.

That is, according to the present invention, the beam main bar, which is a screw rebar, is passed through the steel frame of the SRC external column, or is passed through the gap between the side of the steel frame and the column main bar, and the end of the beam main bar on the outer wall side is provided. It is a reinforcing structure of the main beam of the beam at the joint between the SRC external column and the beam to which the closed type screw fixing device is fixed.

In the present invention, the beam joined to the SRC outer column may be either SRC structure or RC structure.

In the present invention, by fixing the closed type screw fixing device to the end of the beam main bar, the fixing to the column concrete is sufficiently secured, but the beam main bar penetrating the column steel frame is A through-type filling type screw anchoring device described later may be fixed to the inside of the intersection of the beam main bars to enhance the fixation between the column steel frame and the beam main bar and the fixation of the beam main bar to the column concrete.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing the embodiments of the present invention.

FIG. 1 shows an example of a filling type screw fixing device used in the present invention. (A) to (d) are closed type filling screw fixing devices (e) to (g) are penetration type. 1 shows a fill-type screw fixing device. (For the sake of explanation, FIG. 1 also shows the beam main bar to which the filling type screw fixing tool is attached.) (A) is a side view,
(B) is a plan view, (c) is a bottom view, (d) is a longitudinal sectional view,
(E) is a side view, (f) is a plan view, and (g) is a longitudinal sectional view.

Each of the filling type screw fixing tools 1A and 1B is a nut-shaped metal member having a threaded cylindrical portion screwed with the beam main bar 2 on its inner surface and a flange at one end thereof. Has a hole 3.

The closed type screw fixing device 1A is attached to the end of the beam main bar 2, and the inner surface is closed at the flange portion at one end. In the illustrated example, the grout material injection hole 3 of the closed type screw fixing device 1A is formed on the bottom surface,
It may be perforated on the side. This closed type screw fixing device 1
After A is screwed to the end of the main beam 2, the grout material injection hole 3
More grout material is filled and fixed to the main beam 2 of the beam by solidification of the grout material.

The penetration type filling type screw fixing tool 1B is attached to the inside of the intersection of the main beam 2 of the beam and the column steel frame as required, and the threaded inner surface penetrates. After this penetration type filling type screw fixing tool 1B is slid or screwed from the beam side end portion of the beam main bar 2 to the beam side position of the column steel frame,
The grout material is filled through the grout material injection hole 3 and is fixed to the main beam 2 of the beam by solidifying the grout material.

FIG. 2 is a perspective view of a joint portion showing an example of the reinforcing bar structure of the present invention.

With reference to FIG. 2, the procedure of arranging the reinforcing bar structure and the beam main bar of the present invention will be described.

(1) A predetermined number (four in this embodiment) of the beam main bars 2 which are the screw reinforcing bars are inserted from the beam side into the through holes formed in the column steel frame 4. (If not used in the present embodiment, the penetration type filling type screw fixing tool 1B is used, the penetration type filling type screw fixing tool 1B is inserted into the main beam 2.) (2) The end of the beam main reinforcement 2 The portion is projected to the outer wall side from the pillar steel frame 4 by a predetermined length, and the closed type screw fixing device 1 is attached to the end thereof.
A is screwed and temporarily fixed, and then the grout material is filled from the grout material injection hole 3 to be permanently fixed.

(3) When the through-type filling type screw fixing tool 1B is used, the through-type filling type screw fixing tool 1B is screwed to the beam side position of the pillar steel frame and temporarily fixed, and the grout material injection hole 3 is used to grout. Fill the material and fix it permanently.

FIG. 3 shows another example of the reinforcing structure of the present invention, which is SRC.
An example of the joining part of an external pillar and an SRC beam is shown, (a) is a cross-sectional view and (b) is a vertical cross-sectional view.

In this example, among the eight beam main bars 2, four penetrate the column steel frame 4 and four pass through the gap between the side of the column steel frame 4 and the column main bar 8. The closed type screw fixing device 1A is fixed to all the outer wall side ends of the eight beam main bars 2.

FIG. 4 shows another example of the reinforcing structure of the present invention, which is SRC.
An example of the joining part of an external pillar and RC beam is shown, (a) is a cross-sectional view and (b) is a longitudinal cross-sectional view.

Also in this example, among the eight beam main bars 2, four penetrate the column steel frame 4 and four pass through the gap between the side of the column steel frame 4 and the column main bar 8. A closed type screw fixing device 1A is fixed to the outer wall side end portions of the four beam main bars 2 penetrating the column steel frame 4, but it passes through the gap between the side of the column steel frame 4 and the column main bar 8. The four main beam reinforcements 2 are arranged in a U-shape in which the upper and lower two main beam reinforcements 2 are paired and the ends are connected to each other. As described above, according to the present invention, the closed type screw fixing device 1A is attached to the end portions of all the beam main bars 2 to be arranged.
Does not have to be fixed. That is, in view of the degree of congestion of the reinforcing bar at the joint, the end of the beam main bar 2 in one part is U-shaped or L-shaped as usual, and the rest is the reinforcing bar structure of the present invention. May be adopted.

[0021]

According to the present invention, the fixing of the beam main bar to the column concrete is secured by fixing the closed type screw fixing device to the end of the beam main bar which is the screw reinforcing bar. It is no longer necessary to arrange the U-shaped or L-shaped reinforcement, and the reinforcement of the joint of the congested SRC external column with the beam is simplified and the reinforcement work is made efficient.

[Brief description of drawings]

FIG. 1 shows an example of a filling type screw fixing tool used in the present invention, wherein (a) to (d) are closed type screw fixing tools, and (e) to (g) are penetration type filling type. A screw fixing tool is shown.
(A) is a side view, (b) is a plan view, (c) is a bottom view,
(D) is a longitudinal sectional view, (e) is a side view, (f) is a plan view,
(G) is a longitudinal sectional view.

FIG. 2 is a perspective view of a joint portion showing an example of a reinforcing bar structure of the present invention.

FIG. 3 is another example of the reinforcing structure of the present invention, in which an SRC external column and an S
An example of a joint with an RC beam is shown, (a) is a cross-sectional view,
(B) is a longitudinal sectional view.

FIG. 4 shows another example of the reinforcing structure of the present invention, which is an SRC external column and R
An example of a joint with a C beam is shown, (a) is a cross-sectional view,
(B) is a longitudinal sectional view.

FIG. 5 is a perspective view of a joint showing an example of a conventional bar arrangement structure.

[Explanation of symbols]

1A ... Closure type screw fixing tool 1B ... Penetration type screw fixing tool 2 ... Beam main bar 3 ... Grout material injection hole 4 ... Column steel frame 5A, 5B ... Beam steel frame, 6 ・ ・ Joining part lateral reinforcement, 7A ・ ・ Column, 7B ・ ・ Beam, 8 ・ ・ Column main bar,
9 ... Hoop muscle, 10 ... Beam main muscle.

Claims (1)

[Claims] 1. A closed type filling type at the outer wall side end of the beam main bar by passing the beam main bar, which is a screw rebar, through the steel frame of the SRC external column or through the gap between the side of the steel frame and the column main bar. Reinforcement structure of the main beam of the beam at the joint between the SRC external column and the beam to which the screw fixing tool is fixed.