JPH11141055A - Method of jointing slab reinforcement and beam main reinforcement to core wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve anchoring performance by embedding joint metallic material in a core wall to joint a slab reinforcement and a beam main reinforcement in a method of jointing the slab reinforcement and beam main reinforcement to the core wall of a tube-core wall frame by a sliding method. SOLUTION: In a method of jointing a slab reinforcement and a beam main reinforcement to a core wall 16 of a tube-core wall frame by a sliding method, metallic material with a reinforcement anchor 4 fitted to a mechanical joint 1 is embedded in the core wall 16, and mortar 2 is filled in the joint 1 to thread- fasten a threaded reinforcing bar 3. Metallic material with a reinforcement anchor 4 fitted to a thread built-in grip joint 5 for the slab reinforcement and beam reinforcement is embedded in the core wall 16, and after the work execution of the core wall 16, mortar is filled in the thread built-in grip joint 5 for the slab reinforcement to thread-fasten a threaded reinforcing bar 3. The slab reinforcement and beam reinforcement can therefore be jointed and arranged with accuracy without being bent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION A sliding method is applied to a core wall of a tube / core wall frame applied to a high-rise residential building, an office building and the like. In this case, the core wall may be constructed prior to the construction of the slab and the beam. The present invention relates to a method of arranging reinforcing bars for slabs and beams at this time.

[0002]

2. Description of the Related Art The sliding method is a method of intermittently raising a vertical frame panel 13 by itself, and is applied to the construction of a core wall 16 in a tube / core wall frame. FIG. 7 is an example of a standard floor plan of a high-rise tube / core wall type frame, and FIG. 8 is a model diagram in which the core wall 16 of the high-rise tube / core wall frame is constructed by a sliding method. The vertical formwork panel 13 is self-elevated in the form of a worm, and the core wall 16 is constructed while placing concrete. In this case, it is a reasonable construction method to construct the core wall 16 before or independently of the tube frame 12, the slab, and the beam member connected to the core wall. Therefore, it is necessary to arrange the slab reinforcement and the beam main reinforcement to be joined to the core wall 16 after the construction of the core wall 16. However, while the self-elevating direction of the core wall formwork (vertical formwork panel 13) is vertical,
Since the slab and the beam are orthogonal to each other in the horizontal direction, it is extremely difficult to join the slab bar and the beam main bar to the core wall 16 after constructing the core wall 16, and it has been required to establish an effective method. FIG. 9 is a sectional view taken along the line AA of FIG. 7 showing the relationship between the core wall 16, the slab 14, and the slab streaks 15.

FIGS. 10A and 10B show a conventional slab streak 1.
5A and 5B are diagrams showing a joining method to the core wall 16 of FIG.
Fold it along the wall. While avoiding the bent rebar, the vertical form panel 13 is slid to raise the form. However, as a matter of course, the bent rebar obstructs the movement of the formwork by hindering the rise of the formwork.
Then, the slab streaks 15 are bent back to form a lap joint. However, as shown in (b), the bent streaks are irregular and the arrangement accuracy is poor. The bending may reduce the mechanical performance of the reinforcing bar and cause the reinforcing bar to break. In particular, in the case of a beam with a large diameter, this construction is difficult with human power.

Therefore, there is provided a method of joining and arranging the slab streaks and the beam streaks without bending the slab streaks and the beam streaks accurately without lowering the fixing performance when the sliding method is employed.

[0005]

A first aspect of the present invention is a method of joining a slab bar and a beam main bar to a core wall of a tube / core wall frame in a sliding method, wherein a joint fitting is buried in the core wall, and The main purpose is to join a slab bar and a beam main bar of a core wall, which is characterized by joining a slab bar and a beam bar to a metal.

A second aspect of the present invention relates to a method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in a sliding method, wherein a mechanical joint having a rebar anchor attached thereto is embedded in the core wall. A mortar is filled in the joint after the core wall is constructed, and the slab reinforcement and the beam main reinforcement are screwed together.

A third aspect of the present invention relates to a method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in a sliding method, wherein a threaded grip joint with a rebar anchor is embedded in the core wall. After the core wall is constructed, the mortar is filled in the screw-in type grip joint, and the slab streak and the beam main bar are screwed together. .

A fourth aspect of the present invention is a method for joining a slab streak and a beam main streak to a core wall of a tube / core wall frame in a sliding method, wherein a corrugated sheath tube is embedded in the core wall.
A method of joining a slab reinforcement and a main beam of a core wall, characterized by filling the corrugated sheath tube with a premix type mortar after the core wall is constructed and screwing the slab reinforcement and the beam reinforcement.

A fifth aspect of the present invention is a method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in a sliding method, wherein a corrugated sheath pipe is buried through the core wall and one end is filled with mortar. Arrange special fixing hardware,
A mortar is filled in the sheath tube, and the slab streak and the beam main bar are screwed together.

A sixth aspect of the present invention is a method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in a sliding method, wherein a plate member with an anchor is buried in the core wall, and after the core wall is constructed, the anchor is attached. The main purpose is a joining method of a slab reinforcement and a beam reinforcement of a core wall, wherein the slab reinforcement and the beam reinforcement are welded to the attached plate member by a welding method.

According to these construction methods, the vertical form panel does not hinder self-elevation, does not need to be bent back, and does not need to be bent back as in the prior art. Bar arrangement is possible without lowering.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in a sliding method will be described below with reference to the drawings.

[0013] A slab reinforcement of a core wall for embedding a fitting in the core wall and joining a slab reinforcement and a beam main reinforcement to the fitting.
It is a joining method of beam main reinforcement.

FIG. 1 is a diagram showing a method of joining a slab bar and a beam main bar to a core wall of a tube / core wall frame in a sliding method according to a second aspect of the present invention. The joint is buried in the core wall 16, the mortar 2 is filled in the joint after the core wall 16 is constructed, and the screw reinforcing bar 3 is screwed.

FIGS. 2A and 2B are diagrams showing a method of joining a slab bar and a beam main bar to a core wall of a tube / core wall frame in the sliding method according to the third aspect, and FIG. The rebar anchor 4 is attached to the grip type joint 5 and buried in the core wall 16.
In this method, the mortar is filled in the slab-reinforcement screw-incorporated grip joint 5 after the construction, and the screw rebar 3 is screwed.
(B) is a method of joining beam reinforcement using a threaded grip joint 6 for beam reinforcement instead of the grip coupling 5 for threaded reinforcement for slab muscle.

FIG. 3 is a view showing a method of joining a slab streak and a beam main streak to a core wall of a tube / core wall frame in a sliding method according to a fourth aspect, wherein a corrugated sheath tube 7 is embedded in the core wall 16. In this method, the premix type mortar 8 is filled in the corrugated sheath tube 7 after the core wall 16 is applied, and the threaded rebar is screwed.

FIG. 4 is a view showing a method of joining a slab bar and a beam main bar to a core wall of a tube / core wall frame in the sliding method according to the fifth embodiment. Mortar-filled special fixing metal 10 is provided at one end, and a screw rebar is screwed into the sheath tube, and then mortar is injected from a mortar filling hole 10a at the end of the filling-type special fixing metal 10. is there.

FIGS. 5A and 5B are detailed views of a mortar-filled special fixing metal, in which FIG. 5A is a side view and FIG. 5B is a side sectional view. 10a is a mortar injection hole.

FIG. 6 is a view showing a joining method of a slab streak and a beam main stirrer to a core wall of a tube / core wall frame in the sliding method according to the sixth aspect.
Is embedded in the core wall 16, and after the core wall 16 is constructed, the screw reinforcing bar 3 is implanted in the anchored plate member 9.

[0020]

The effects of the present invention are as follows.

Conventionally, the reinforcing bar was previously penetrated through the core wall concrete and bent along the wall surface, and the vertical forming panel was slid while avoiding the bent reinforcing bar, thereby raising the form by itself. However, the bent rebar obstructs, and hinders the rise of the formwork, making it difficult to move the formwork. And this slab is bent back and the lap joint is performed, but the bent streaks are irregular and the arrangement accuracy is poor,
Since the bending cannot be completely removed, the fixing stiffness decreases, and the bending may reduce the mechanical performance of the reinforcing bar and cause the reinforcing bar to break. In particular, in the case of a beam with a large diameter, this construction is difficult with human power. However, when the sliding method is adopted, the joint wall is buried in the core wall of the present invention, and the slab reinforcement and the beam main reinforcement are joined to the joint hardware, without bending the slab reinforcement and the beam reinforcement. Bonding arrangement can be performed with high accuracy and without lowering the fixing performance.

[Brief description of the drawings]

FIG. 1 is a diagram showing a method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in a sliding method according to claim 2;

FIG. 2 is a diagram showing a method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in a sliding method according to a third embodiment.

FIG. 3 is a view showing a method of joining a slab bar and a beam main bar to a core wall of a tube / core wall frame in the sliding method according to claim 4;

FIG. 4 is a view showing a method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in the sliding method according to claim 5;

FIG. 5 is a detailed view of a mortar-filled special fixing hardware.
(A) is a side view and (b) is a side sectional view.

FIG. 6 is a view showing a method of joining a slab reinforcement and a beam main reinforcement to a core wall of a tube / core wall frame in the sliding method according to claim 6;

FIG. 7 is a standard floor plan of a 30 story tube / core wall type frame structure.

FIG. 8 is a model diagram showing a case where a core wall of a 30-story tube / core wall frame is constructed by a sliding method.

9 is a sectional view taken along the line AA of FIG. 7, showing a relationship between a core wall, a slab, and a slab streak.

FIGS. 10A and 10B are diagrams showing a conventional method of joining a slab streak to a core wall, and FIG. 10A shows a state in which a reinforcing bar embedded in the core wall is bent along the core wall. And (b) is a diagram in which the bent rebar is bent back.

[Explanation of symbols]

1 ... mechanical joint, 2 ... mortar, 3 ... threaded steel,
4 Reinforcing bar anchor, 5 Threaded grip joint for slab and beam, 6 Threaded grip joint for beam, 7 Corrugated sheath tube, 8 Premix mortar, 9 With anchor Plate member, 10: mortar filling type special fixing metal, 10a: mortar injection hole, 11:
Core wall frame, 12 Tube frame, 13 Vertical frame panel, 14 Slab, 15 Slab streaks, 16
Core wall

Claims (6)

[Claims] 1. A tube / sliding method in a sliding method.
A method of joining a slab bar and a beam main bar to a core wall of a core wall frame, wherein a joint hardware is embedded in the core wall, and the slab bar and the beam main bar are joined to the joint metal. The method of joining bars and beam bars. 2. A tube / tube in a sliding method.
A method of joining a slab reinforcement and a beam main reinforcement to a core wall of a core wall frame, in which a mechanical joint with a reinforcing anchor attached is buried in the core wall, and after the core wall construction, the joint is filled with mortar. 2. The method according to claim 1, wherein the slab reinforcement and the beam reinforcement are screwed together. 3. A tube / tube in a sliding method.
A method of joining a slab bar and a beam main bar to a core wall of a core wall frame, in which a threaded grip joint with a rebar anchor attached is buried in the core wall, and after the core wall is constructed, the threaded grip joint is inserted into the threaded grip joint. The method according to claim 1, wherein the mortar is filled and the slab reinforcement and the beam reinforcement are screwed together. 4. A tube and a tube in a sliding method.
A method of joining a slab bar and a beam main bar to a core wall of a core wall frame, embedding a corrugated sheath tube in the core wall, filling the corrugated sheath tube with a premix type mortar after core wall construction,
The method according to claim 1, wherein the slab reinforcement and the beam reinforcement are screwed together. 5. A tube / tube in a sliding method.
This is a joining method of a slab streak and a beam main streak to a core wall of a core wall frame, in which a corrugated sheath tube is buried through the core wall, a mortar-filled special fixing metal is provided at one end, and the sheath tube is attached to the core tube. The method according to claim 1, wherein the slab bar and the beam main bar are screwed together by filling with mortar. 6. A tube / tube in a sliding method.
A method of joining a slab bar and a beam main bar to a core wall of a core wall frame, in which an anchored plate member is embedded in the core wall, and after the core wall is constructed, the slab bar and the beam main bar are welded to the anchored plate member. A method of joining core slab reinforcement and beam reinforcement, which is characterized in that: