JP2651322B2 - Construction method of wall type rigid frame structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a wall-type rigid frame structure.

[0002]

2. Description of the Related Art In a construction method of a wall-type rigid frame structure in which a girder direction is a flat wall column having the same dimension as a beam width and a direction between beams is an earthquake-resistant wall having no beam shape, a beam is partially formed by stirrups. But
If it is a precast concrete beam which projects out of an upper surface, as shown in FIG. 19, the lower end muscle 10a projecting from the mating end of the flop-les-cast concrete beams 10 must be coordination streaks superimposed at the top 20 of the column is there. For this reason, the lower reinforcement 10a and the upper reinforcement 10b projecting from the joint end of the precast concrete beam 10 are arranged so as to intersect with the main reinforcement 40a of the wall beam 40 in the earthquake-resistant wall 30.

[0003]

The lower ends of the precast concrete beams facing each other at the top of the column and having stirrups projecting from the upper surface overlap each other,
Moreover, since these intersect with the main reinforcement of the wall beam, the reinforcement arrangement procedure is restricted. For this reason, a detailed examination in advance is required in these arrangement work, and a great deal of labor has been required. Furthermore, since the reinforcing bars are not sufficiently spaced at the tops of the columns, the adhesion performance of the main bars and the filling property of the concrete are deteriorated, and there is a possibility that the quality of the skeleton is deteriorated. The present invention has been made in view of the above problems, the purpose thereof, in the construction method of the wall-type ramen structure, while being able to work efficiently without being restricted by the reinforcement arrangement procedure,
The purpose is to improve the quality of the skeleton by improving the fillability of the concrete at the top of the column .

[0004]

[Means for Solving the Problems] To solve the above problems,
Means because, in Wall Frame structure, building a Kabehari the top of the shear walls constructed between posts projecting from the top of the pillar <br/> integrally pillars the joint end portions At the top of
And a lower end protruding from the joint end.
Arrange the streaks through the tops of the columns, and a part of the stirrups
Projecting precast concrete beam is orthogonal to the wall beam
In the direction of
The precast concrete
The bottom streaks protruding from the joint end of the cleat beam are
It is to bend upward and fix before the lower end muscle.

[0005]

[Action] Such, according to the construction method of the Wall Frame structure according to the present invention, it is constructed integrally with Kabehari the top of the shear walls constructed between posts projecting from the top of said post , That
The opposite ends of the column at the top of the column
At the same time, a lower streak projecting from the joint end is passed through the top of the column.
Precas with bar arrangement, part of stirrup protruding from the top
Concrete beams between columns in a direction perpendicular to the wall beams.
Erected on the top of the pillar
The joint end of the precast concrete beam
The lower streak protruding from the upper part in front of the lower streak of the wall beam
By fixing by bending, since the lower end muscle between the wall beams and the precast concrete beam at the top of the column do not intersect, without restriction of reinforcement procedure at the top of the pillars, and distribution of the reinforcing bars at the top of the column Muscle spacing can be sufficient.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the method for constructing a wall-type rigid frame structure according to the present invention will be described below in detail. In the first embodiment, a case will be described in which columns are constructed of cast-in-place concrete. FIG. 1 is a perspective view in which columns and reinforcing bars of a seismic wall and a formwork are assembled, FIG. 2 is a front view showing columns and wall beams, and FIG. 3 is a side view showing columns and wall beams. perspective view of Da設concrete in the formwork, 5 columns and shear walls and Kabehari cross-sectional view of the junction of FIG. 6 is a sectional view of the pillar, FIG. 7 between each pillar, stirrups
Upper part is perspective view looped over the precast concrete beam projected from the upper surface, Figure 8 is a pillar, a part of the stirrups
Sectional view of the joint where a precast concrete beam protruding from the surface is crossed. Fig. 9 shows the pillar and stirrup partly on the top.
It is a top view of the joint part of the precast concrete beam and the earthquake-resistant wall which protruded from the .

[0007] In the construction method of the wall-type rigid frame structure of the present invention, first, the columns 1 and the rebar of the earthquake-resistant wall 2 are assembled on the foundation concrete constructed by the usual method.
The mold 3 is erected (FIG. 1). In this case, as shown in FIGS. 2 and 3, the lower end muscle 4a of Kabehari 4 in shear walls 2 top is a through Haisuji obtained by through the top end of the column, abs 4b of the wall beams 4 are pillars of Reinforcing bars are provided inside the wall beam 4 without passing through the top , and instead of the abdominal muscles 4b omitted, the lower end muscles 4a are more concentratedly arranged than usual.

Next, concrete is poured into the formwork 3 on which such reinforcements are arranged (FIG. 4). This casting is performed until each column 1 is placed on the lower surface position of the beam, that is, the position where the lower surface of a precast concrete beam (hereinafter referred to as a precast concrete beam) 5 in which a part of stirrups protrudes from the upper surface is placed.
The anti-seismic wall 2 is made of a precast concrete floor plate (hereinafter referred to as a precast concrete floor ) in which a part of a reinforcing bar protrudes from the upper surface.
6 ) , that is, up to the wall beam 4. As a result, as shown in FIGS. 5 and 6, the lower end bar 4 a of the wall beam 4 is in a state of being arranged through the top of the pillar, but the abdominal muscle 4 b is stopped in the wall beam 4 and No reinforcement at the top . The upper surface of the wall beam 4 is a column 1 in a direction crossing the wall beam 4.
It has the same height as the precast concrete beam 5 installed between them.

Next, when the concrete has hardened, the form 3 is removed from the mold, and the precast concrete beam 5 is bridged between the columns 1 in a direction intersecting with the wall beam (FIG. 7). Lower muscle 5a projecting from the mating end of the opposing placed on precast concrete beam 5 in the column 1, as shown in FIGS. 8 and 9, to ensure a predetermined fixing length and its distal end is pre
It is bent 90 degrees upward in front of the lower reinforcement 4a of the wall beam 4, that is, with the lower reinforcement 4a interposed therebetween. Therefore,
The lower reinforcement 5a of the precast concrete beam 5 and the wall beam 4
Are arranged without crossing each other.

[0010] Next, as shown in FIG.
After dropping the stirrups 1b into a and arranging the bars, the precast concrete floor plate 6 is placed on the precast concrete beams 5 and the wall beams 4. Then, the upper reinforcement 5c of the precast concrete beam 5 is laid through the opposing precast concrete beam on site, and the upper reinforcement 4c of the wall beam 4 is laid through the opposite wall beam 4 on site. Therefore, these upper end muscles 4c and 5c are arranged so as to intersect at the upper side of the top of the pillar . Also, a reinforcing bar 6a for a floor slab is arranged on the precast concrete floor plate 6 (FIGS. 11 and 12). In addition, the upper end line 4 of the wall beam 4
c is more concentratedly arranged than usual, similarly to the lower end muscle 4a.

Next, the concrete 1 is cast on the precast concrete floor plate 6, on the precast concrete beam 5, and on the joint between the column and the beam, whereby the column 1
Precast concrete beam 5, wall beam 4, and earthquake-resistant wall 2
Are integrally joined (FIGS. 13, 14, and 15).
Then, the above-described steps are sequentially repeated to construct the wall-type rigid frame structure.

In the second embodiment shown in FIGS. 16 and 17, the column 1 is a precast concrete column 1c, and a vertical bar 1a is protruded on the upper surface and a wall bar is provided on the side. 1d is projected.

In this embodiment, the construction method is basically the same as that of the first embodiment. First, the precast concrete column 1c is placed at the built-in position on the foundation concrete, and the precast concrete column 1c is placed. The joint sleeve buried in the column base of the concrete
And the column bars 8 are fixed to each other. Then, the reinforcing bars of the earthquake-resistant wall 2 and the wall beam 4 are arranged, the formwork 3 is assembled, and concrete is cast, whereby the lower end bar 4a of the wall beam 4 as shown in FIGS. The seismic wall 2 arranged through the top of the building is constructed. After this, the first
A wall-type rigid frame structure is constructed by repeating the same construction method as the embodiment.

Further, in the third embodiment shown in FIG. 18, the upper reinforcing bar 5b of the precast concrete beam 5 in the first and second embodiments is bent downward just before the lower reinforcing bar 4a of the wall beam 4. It was done.

The upper reinforcing bar 5b is previously bound to a stirrup 5c protruding from the upper surface of the precast concrete beam 5 by a wire or the like, and the leading end secures a fixing length similarly to the lower reinforcing bar. It is bent 90 degrees on the side. And it is arranged with the upper end reinforcement 4c of the wall beam 4 arranged through the top of the pillar . Thereby, it is possible to save the trouble of arranging the upper end bar 4c at the site and to arrange the upper end bar 4c without intersecting with the upper end bar 4c of the wall beam 4, thereby further arranging the reinforcing bar at the top of the column. Muscle spacing can be ensured.

[0016]

According to the present invention, a wall beam is provided on the upper part of the earthquake-resistant wall constructed between the columns.
Building integrally protruding from the top of the column, the junction
The ends are opposed to each other at the top of the pillar, and
Arrange the lower reinforcement projecting from the joint end through the top of the column,
Precast conch with stirrups partially protruding from the top
Reit beams are suspended between columns in a direction perpendicular to the wall beams.
And the joint ends thereof are opposed to each other at the top of the pillar.
From the joint end of the precast concrete beam.
Bend the raised bottom muscle up before the bottom muscle of the wall beam
The lower end of the precast concrete beam and the lower end of the wall beam do not intersect each other at the top of the column by fixing and fixing, so that efficient work can be performed without being restricted by the procedure of the reinforcing work. Can be.

[0017] projecting from the joint ends of the precast concrete beam, and muscle lower the tip is bent on the upper side, by which a state sandwiching the lower muscles are Haisuji on the front side of the lower end muscle Kabehari In addition, since the spacing between the reinforcing bars at the tops of the columns can be sufficiently ensured, the filling property of the concrete can be increased and the quality of the structure can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view in which columns, reinforcing bars of a shear wall, and a formwork are assembled.

FIG. 2 is a front view showing the arrangement of columns and wall beams.

FIG. 3 is a side view showing the arrangement of columns and wall beams.

FIG. 4 is a perspective view in which concrete is cast in a formwork.

FIG. 5 is a cross-sectional view of a joint between a column, an earthquake-resistant wall, and a wall beam.

FIG. 6 is a sectional view of a pillar.

FIG. 7 is a perspective view of passing over the flops of cast concrete beams between each pillar.

FIG. 8 is a cross-sectional view of a joint where a precast concrete beam is stretched over a pillar.

FIG. 9 is a plan view of a joint between a column, a beam, and an earthquake-resistant wall.

FIG. 10 is a perspective view in which a precast concrete floor plate is placed on a precast concrete beam.

FIG. 11 is a perspective view in which reinforcing bars of a floor slab are arranged on a precast concrete floor plate.

FIG. 12 is a cross-sectional view of a joint between a column, a precast concrete beam, and a shear wall.

FIG. 13 is a perspective view in which concrete is cast on a precast concrete floorboard.

FIG. 14 is a cross-sectional view in which concrete is cast at a joint between a column, a precast concrete beam, and an earthquake-resistant wall.

15 is a sectional view taken along line aa of FIG.

FIG. 16 is a perspective view of a precast concrete column and a reinforcing bar of an earthquake-resistant wall according to a second embodiment.

FIG. 17 is a perspective view in which the formwork of the earthquake-resistant wall is assembled.

FIG. 18 is a cross-sectional view of a joint between a column, a precast concrete beam, and an earthquake-resistant wall according to a third embodiment.

FIG. 19 is a cross-sectional view of a conventional joint between a column, a precast concrete beam, and a shear wall.

[Explanation of symbols]

1 Column 2 shear wall 3-inch frame 4 Kabehari 5-flops of cast concrete beams 6-flops of cast concrete flooring 7 concrete

Claims (3)

(57) [Claims] 1. In a wall-type rigid frame structure, a wall beam is projected from the top of the pillar on the upper part of the earthquake-resistant wall constructed between the pillars.
Building integrally Te, at the top end of the column the joint end portions
While being opposed to each other, and projecting from the joint end
Arrange the stirrups through the tops of the columns, and if some stirrups are on the top
The precast concrete beam projecting from
Erected between the pillars in the direction of intersection, and
At the top of the post, the precast
The lower reinforcement projecting from the joint end of the concrete beam is
A method for constructing a wall-type rigid frame structure , wherein the frame is bent upward and fixed before a lower end muscle of the wall. 2. The method according to claim 1, wherein the pillar is a precast concrete pillar. 3. Wall Frame structure according to claim 1 or 2 upper muscle before Kipu les cast concrete beams, characterized in that it is folded reinforcement on the lower side in front of the lower end muscle in Kabehari The construction method of things.