JPS5858503B2 - Construction method of reinforced concrete composite wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method for a reinforced concrete composite wall.

Conventionally, in the construction of cast-in-place reinforced concrete structures for buildings, temporary frame installation work by temporary frame carpenters is carried out simultaneously with reinforcing work by reinforcing bar workers, making the work unavoidably complicated.
There were also limits to the labor savings achieved by using large plate frames and prefabricated reinforcing bars.

In recent years, the industrialization of reinforced concrete structures has been progressing in place of the cast-in-place reinforced concrete structures mentioned above, and the pre-cast concrete construction method has become widespread. In addition to the labor involved in transporting panels and the dry method, which requires a considerable amount of grouting and caulking at the joints, in the case of panel joining methods that use steel materials for the joints of Nokunel, There are also many drawbacks, such as the superiority of steel as a structural material, and the performance of cement-based slabs as a structural material has been diminished, and this is causing the overall cost of construction to increase.

In view of the above-mentioned drawbacks of the currently popular concrete concrete construction method, the present invention proposes a method of combining factory-produced concrete or cement or cement-like panels into large formwork-cum-structural panels at the building site. This is a construction method for rationally constructing reinforced concrete composite walls using concrete cast on-site using these large panels as formwork and structural materials, and allows buildings with reinforced concrete structures to be constructed more economically.

The present invention will be explained below with reference to the accompanying drawings. As illustrated in FIGS. unit panels 2 made of concrete, cement, or cement analogues are produced in a factory, and the third
As illustrated in the figure, several of the unit panels 2 described above are combined (in the case of five in Figure 3), and the trapezoidal protrusions 1 on the back side of each unit panel 2 are connected to each other for vertical wall reinforcement. By arranging the horizontal reinforcing bars 3 and 4 in a lattice pattern and fixing the vertical and horizontal reinforcing bars 3 and 4 to appropriate positions of the unit panel 2 with driving fittings 5, etc. (see Fig. 4), each unit panel 2 is interconnected. As illustrated in FIGS. 5 and 6, the large channel 6 is placed at a predetermined position on the site with its trapezoidal protrusion 1 attached from both sides. After setting the construction in the form of a wall, a comfleet track is driven from above into the gap 7 formed between the large panels 6 set in the form of a wall, as shown in Figs. 1 and 8. As illustrated, the structure is characterized in that the large grooves 6 on both sides and the reinforced concrete core 8 which is hardened and molded in the above-mentioned cavity I are integrally constructed into a composite wall 9.

To further explain the present invention in detail, the unit panel 2 produced in a factory etc. has a width suitable for handling and combination into a large panel, and a length that is equal to or longer than the floor height of a building. 60 large panels made on site as
In the combination configuration, as exemplified in FIG. 3, it is used by cutting it into required dimensions as necessary.

However, the unit panel 2 is not limited to production of only one type, and may be produced in several sizes depending on the case.

Note that reference numeral 10 shown in FIGS. 1 and 2 is a bolt insertion hole provided in the trapezoidal projection 1 of the unit panel 2.

Next, in order to assemble the unit panel 2 into a large formwork/structural panel 6 at the site, place the unit panel 2 on the workbench with the back side facing up, as illustrated in FIG. In combination, each unit panel 2 is placed between the trapezoidal protrusion 1
f: Vertical reinforcing bars 3 and horizontal reinforcing bars 4 are arranged in a grid pattern in communication,
As illustrated in FIG. 4, a reinforcing bar is inserted into the unit panel 2 using a hammer or the like, and the vertical and horizontal reinforcing bars 3.4f are fixed to the panel.

By fixing the vertical and horizontal reinforcing bars 3.4 to the panel, each unit panel 2 is interconnected and constructed into a large panel.

In addition, in the above, the vertical and horizontal reinforcing bars 3.4 are tightened with wire at their intersections, but in some cases, the vertical and horizontal reinforcing bars 3 and 4 may be tightened in advance.
．． 4. It is also possible to use it as a welded set of reinforcing bars in a lattice shape.

Next, when providing an opening 11 such as a window in the large panel 6, a suitable temporary opening frame 12 is fitted between the unit panels 2.

In addition, when the reinforced concrete composite wall to be constructed requires diagonal reinforcing bars 13 for shear reinforcement in addition to vertical and horizontal reinforcing bars 3 and 4 for wall reinforcement, they can be attached to large channel 6 as shown in the figure, or in this case It is necessary to cut a groove in the trapezoidal projection 1 at the location where the diagonal reinforcing bar 13 contacts the trapezoidal projection 1.

Next, as illustrated in Fig. 5, at a predetermined position on the site,
The large panels 6 assembled on the workbench as described above are hoisted up by a crane or the like, and the large panels 6 are set up in a wall shape by bringing their trapezoidal protrusions 1 into contact with each other from both sides. The large panel 6 is fixed to a wall shape by inserting a tightening bolt 14 into a bolt insertion hole 10 provided in the unit panel 2 and tightening the nut.

Note that the large panels 6 are brought together from both sides by being erected at the site, but it is also possible to do so on the ground, hoist it up, and erect it at the site.

Next, when setting up a wall-like building using the large panel 6, as illustrated in Figures 5 to 8, the corners and T-shaped parts of the wall of the building are made of the same material as the unit panel 2. Corner angles 15 and corner plates 16 are used and attached by tightening bolts 14, respectively.

Corner angle 15 and corner plate 1
6 can also be an appropriate temporary frame.

In addition, reinforcing steel bars 17 are arranged at the corners and T-shaped portions of the large panel 6.

After setting up the large panels 6 in the form of a wall at the site as described above, concrete is poured from above into the void 7 formed between the large panels 60 on both sides, as shown in FIG. As shown in FIG. 8, the concrete poured into the void 7 hardens to form a reinforced concrete core 8, and the large grooves 6 on both sides, that is, each unit panel 2 constituting this, hardens and forms a reinforced concrete core 8. , the trapezoidal protrusion 1 button and the attached reinforcing bars are strongly fixed to the reinforced concrete core 8, and a wall body is constructed in which the large panels 6 on both sides and the reinforced concrete core 8 are structurally integrated. It is something.

The floor slab of the building will be constructed by pouring concrete on-site or by using a suitable precast concrete slab.

The construction method of the present invention is carried out as described above, and (a) the unit panel on the art material side of the reinforced concrete core of the reinforced concrete composite wall is made from unreinforced concrete, cement, or a cement analog, so factory production is not required. that it can be done extremely easily and efficiently;
(b) Factory-produced unit panels can be made relatively small, so they are easy to handle and transport to the site. Since it is constructed as a large panel, it is easy to construct the large panel, and the time required for construction work can be reduced.2) The trapezoidal protrusion on the back of the unit panel allows the unit panel to be used as a formwork and structural panel for on-site casting. It helps to provide a strong and uniform structure to the reinforced concrete core formed by concrete, and it also helps to accurately maintain the thickness of the wall formed by the large panels on both sides and to form a gap between them. (The reinforced concrete core, which is formed by pouring concrete on-site, is formed into an integral plate shape surrounding a trapezoidal protrusion, and is structurally integrated with the large panels on both sides, that is, the unit panels, to create a composite structure with high strength. (c) The reinforcing bars of the reinforced concrete core of the synthetic chest are fixed to the back of the large panel and serve to interconnect each unit panel, and the reinforcing bars can be easily arranged on the ground, making it easy to carry out reinforcing work. (g) Since the large panels are cast-in-place concrete formwork, there is no need for temporary frames or shoring as in the past, and reinforcing reinforcing bars can be attached to the large panels on the ground. ('"f") It is possible to finish the wall at the same time as the cast-in-place concrete work, (for medium and large panels, etc.) The on-site joining of factory-produced parts is carried out by integrating concrete poured on-site between the large panels on both sides, so there is no need for special joining means, and the labor of joining can be reduced. This construction method has the advantage of being able to construct load-bearing walls of buildings rationally and economically.

[Brief explanation of the drawing]

The attached drawings are examples for explaining aspects of the construction method of the present invention, in which FIG. 1 is a plan view of a unit panel used in the construction method of the present invention, FIG. Figure 3 is a top view of the large panel assembled at the construction site;
The figure is an enlarged sectional view of a part thereof. Next, Figure 5 is a perspective view showing the state in which large panels are built into a wall shape, Figure 6 is a vertical sectional view of a part of it, and Figures 7 and 8 are views of the constructed composite wall. FIG. 3 is a sectional view showing a corner portion and a T-shaped portion, respectively. 1...Trapezoidal protrusion, 2...Unit panel, 3...Vertical reinforcing bar, 4...Horizontal reinforcing bar, 5
...Putting metal A6...Large panel, 7
...Gap, 8...Reinforced concrete core, 9...Synthetic wall, 10...Bolt insertion hole, 11...Opening , 12...Temporary opening frame, 13...Diagonal reinforcing bar, 14...Tightening bolt, 15...Corner angle, 16...
...Corner plate, 17...Reinforcement solid steel bar.

Claims (1)

[Claims] 1 Place a large number of trapezoidal protrusions at appropriate intervals on the back side, vertically.
Unit panels made of concrete, cement, or cement analogues are produced in a factory in several horizontal rows, and several of the above unit panels are assembled at the building site to provide communication between the trapezoidal protrusions on the back of each unit panel. By arranging vertical and horizontal reinforcing bars for wall reinforcement in a lattice pattern and fixing these vertical and horizontal reinforcing bars in the appropriate places of the unit panels with driving metal fittings, etc., each unit panel is interconnected to form a structure that also serves as a formwork. After constructing large panels and setting them up in a wall shape at a predetermined location on the site with their trapezoidal protrusions touching from both sides, the large panels are formed between the large panels set in the wall shape. A composite wall is constructed in which the large panels on both sides and the reinforced concrete core hardened and molded into the above-mentioned gap are structurally integrated by driving comfleet from above into the above-mentioned gap. Construction method for reinforced concrete composite walls.