JPS63300124A - Wall panel of basement and the like - Google Patents

Abstract

PURPOSE:To integrate a wall body with a base concrete by a method in which connectors are formed on the inside face of the lower end of a wall panel, and anchors are buried in a base concrete placed. CONSTITUTION:Connecting holes 27 for anchor are formed in the concrete blocks 4 of a panel 13, and the upper end of anchor 36 on the wall side which is buried in the panel 13 is folded into an L-shape. A closing bolt 39 is attached through a long nut 38 to the anchor 36. The panel 13 is set in a trench excavated along the wall of basement, the corners are mutually connected, and concrete is placed into the hollow portion to form a foot post holder 33. The ground in the space of basement is excavated, and base side anchors 40 are attached for enclosing bolts. Stones 42 are laid on the bottom excavated, reinforcing bars are set, and base concrete 43 is placed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates primarily to wall panels used in basement construction methods.

Conventional technology The conventional method of constructing a basement is to excavate the ground in the area that will become the basement space, then install formwork in the basement space, pour concrete, and construct the walls. It is. In this case, in order to prevent the risk of the area surrounding the excavated ground collapsing, it is necessary to excavate the wall surface around the excavated ground in an inclined manner at a certain predetermined angle. However, doing this would require a larger site, so instead of tilting and excavating the walls around the basement, there is a method of applying what is called a heap retainer. This method has the disadvantage that it requires additional construction work, which requires more time and effort, and also increases material costs.

As a method to eliminate these drawbacks, conventional PC boards (precast concrete boards) are used to excavate a trench only in the part that will become the basement wall, without excavating the basement space in advance as described above, and then insert the trench into the trench. A method has been considered in which the walls of the basement are built horizontally by inserting the PC boards, and then the ground surrounded by the walls is excavated and concrete foundation slabs are poured (for example, Japanese Patent Publication No. 60-24249 reference)
.

Problems that the invention aims to solve In this way, by installing PC boards that will become the walls of the basement in advance,
Then, by excavating the ground surrounded by this,
Since the walls of the PC@ serve as mountain retainers, there is no need to specially construct such mountain retainers, but in conventional construction methods, the walls are constructed in advance and the foundation slab concrete is installed later. are not interconnected, so that, for example, walls and foundation concrete sink unevenly,
This causes inconveniences such as cracks forming and water intrusion.

The present invention solves these conventional drawbacks and provides a structure of a wall panel for a basement or the like in which the °C2 foundation slab concrete and the wall are connected by anchors.

Means for Solving the Problems In order to achieve the above object, the present invention includes installing a wall panel (14) and then applying foundation slab concrete (43) to the bottom portion surrounded by the wall panel (14). ), in which an anchor (40) buried in the foundation slab concrete (43) is placed on the indoor side surface at the lower end of the wall panel (14). It is characterized in that a connecting portion (27) for connecting to (14) is formed.

Function According to the present invention, the lower end of the basement wall panel installed in advance is a connecting portion for connecting an anchor buried in the foundation slab concrete, and therefore, the anchor is buried in the foundation slab concrete before the foundation slab concrete is placed. By connecting the connecting portion hair anchors, the foundation slab concrete (43) can be integrally connected to the wall side.

Embodiment FIGS. 4 to 7 show a method for manufacturing a panel body that becomes a wall panel of the present invention.

First, as shown in Figure 4, inside the rectangular frame (1),
A known self-leveling agent (2) is poured and hardened to create a horizontal and smooth workbench (3). That is, by using the self-leveling agent (2), a smooth and horizontal work surface is automatically obtained.

Then, place the formwork concrete blocks (4) (4)... onto this workbench (3), as shown in Figure 5, at the joints between each formwork concrete block (4) (4)... Among them, one of the joints (5) (5) passes in a straight line, but the other joint (6) (6) does not pass in such a way, and is arranged in a so-called torn joint shape. The formwork concrete block (4) has a pair of face shells (7) (7) connected to a pair of connecting parts (8
) (8), which are integrally connected so as to create a space between them.

Then, as above, formwork concrete blocks (4
)(4)... on the workbench (3) so as to form a predetermined panel shape, and as shown in FIG. male screw (9) (9)
A steel rod (10) for fastening is inserted through the rod (10), and a NAND (11) is inserted into the male threaded portion (9) at both ends of the rod (10).
11) are screwed together and tightened. At that time, the steel rod (
10) Apply the plate (12) (12) to the end face of the formwork concrete block (4) (4) at both ends in the insertion direction, and insert the steel rod (10) into this plate (12).
(12) and then tighten the nut (11) from the outside.
Tighten (11). After manufacturing one panel body (13) as described above, tightening of the steel rods (10) is carried out multiple times at appropriate locations in the left and right direction.
Furthermore, a second panel body (13) is manufactured by arranging formwork concrete blocks (4) (4)... in the same manner as shown in Fig. 6 on top of the panel body <13). The panel body (13) is manufactured in a layered manner by arranging formwork concrete blocks (4) (4) on the panel body (13).

In this way, the manufactured panel body (13) (1
3) is carried to the site and installed, but at that time,
Each formwork concrete block (4) by a steel rod (10)
) (4) Since they are tied together, they can be transported and lifted as a single panel. In this case, as mentioned above, since each formwork concrete block (4), (4)... is arranged in the shape of a broken joint, the steel rod (10) is directed toward the broken joint (6).
If you insert and tighten the steel rod (10), there is no need to tighten it from the direction perpendicular to this steel rod (10). , each formwork concrete block (4) in a cross shape (
4) It is necessary to tighten the ..., but there is no such need.

The panel body (13) manufactured in the above steps up to Figures 4 and 7 is a unit in which the length in the direction of one wall is divided into basic units, and when installed on site. As shown in Figure 1, this is a through panel (14) connected to a size that spans the entire length of one wall.To explain the connection method, first, the upper end side of the wall Holes (15) (15) in the wall thickness direction are pre-drilled in the face shell (7) of the formwork concrete blocks (4) (4)... located in the formwork concrete blocks (4) (4)...
15), for tightening, insert the threaded rod (17) of the metal fitting (16). Then, on both sides of the end of this threaded rod (17), upper and lower two stages of steel pipe and other connecting rods (18) (1B
) are arranged astride each panel body (13) (13), and the presser bolts (1) attached to both ends of the screw rod (17)
9) (19) is brought into contact with this connecting rod (18), and the nut (20) (20
) to integrally connect the upper ends of each panel body (13) (13) to each other. In addition, the connecting rod on the outside of the wall (
18) Among (1B)..., the connecting rod (18) on the upper side in Fig. 1 projects outward from the end of the panel body (13); This is for connecting the panel body (13) in the vertical direction and the panel body in the perpendicular direction. It is designed to be connected by being connected to, etc.

Furthermore, formwork concrete blocks (4) (4)... at an appropriate height from the lower end of the panel body (13) are placed as shown in Figure 2 in accordance with the height position of the foundation slab concrete described later. A series of anchor holes (27) are formed at appropriate intervals in the wall direction. (36) is a wall-side anchor of a steel bar of different diameters that is buried in the concrete poured in this panel body (13), and its upper end is bent horizontally into an L shape and a male screw is attached to the tip. (37) is formed. A long nut (38) is screwed into this male screw (37), and the connecting hole (2) is screwed into the long nut (38).
The tip of the closure plug (39) inserted into 7) from the outside is also screwed into the long nut (38), thereby supporting the wall anchor (36) within the panel body (13). ing. That is, the panel body (13) is inserted into the groove (31).
At the stage of installing the wall anchor (3)
6) is attached to the closure bolt (39).

Next, returning to FIGS. 9 and 11, the panel body (13)
Formwork concrete blocks (4) located at the lower end of (4)
)..., on the underside of said play) (12), a wall layer connection (21) made of H-shaped steel is attached to one side of the web, spanning each panel body (13) (13). The groove (22) on the side is arranged so as to fit into the lower end of the panel body (13). At this time, as shown in FIG. 10, a bolt hole (23) is pre-formed in the wall layer connection (21), and the bolt hole (23) is connected to the bolt hole (23).
(12) The end of the steel rod (10) is made to protrude, and another nut (25) is screwed into this steel rod (10) through one or more washers (24). , install this wall layer connection (21). In addition, large diameter concrete outflow holes (26) as shown in FIG. 10 are preformed at important points in the wall layer connection (21).

Next, to explain the method for installing the panel bodies (13) and pouring concrete, first, in parallel with the connection of the panel bodies (13) (13) on-site, or before or after that, as shown in Fig. 11, , excavate a trench (31) along the basement wall.

Then, the through panels (14
) is lifted up via a beam (30) etc. and installed into this groove (31) as shown in FIG. In this way, the panel bodies (13) (13) are installed to form each surrounding wall, and are connected to each other at a part of the corner.
After arranging necessary reinforcement into the hollow part (29) of each panel body (13), concrete is poured into the hollow part (29) as shown in FIG. At this time, the poured concrete flows out from the concrete outflow hole (26) of the wall layer connection (21) to the bottom of the groove (31). This spilled concrete covers the wall layer connection (21) and
Further, concrete is poured while controlling the height to a certain height covering both sides of the lower end of the panel body (13). In this way, when the poured concrete has hardened, the formed wall (3
At the lower end of 2), a concrete II sill (33) reinforced by a wall layer tie (21) made of steel is formed. Thereafter, as shown in FIG. 14, a concrete beam (34) is constructed and integrated at the upper end of the wall (32). The construction of this climbing beam (34) can be carried out either by the wet method by pouring concrete on site or by pre-formed P.
Use C material. Thereafter, as shown in FIG. 15, the space inside the groove (31) on both sides of the constructed wall (32) (32) is backfilled.

Next, as shown in FIG. 16, the excavator (35) is driven into the ground of the basement space surrounded by the walls (32) to excavate this part to form the basement space. At that time, a part of the excavated soil is used as embankment on the outside of the wall (32), and the rest is discharged.

As mentioned above, when the ground in the basement space was excavated, the closure bolt (39) that was supporting the wall anchor (36) was removed.
will be exposed, so first remove this bolt (39),
Instead of this, insert a foundation plate side anchor (40) made of steel bars of different diameters as shown in Figs. 1 and 3 into the connecting hole (27) through the male screw part (41) formed at its tip, and The male screw part (41) is screwed into a long nut (3 days) buried in concrete in the wall, and is attached so as to protrude from the wall side. At the same time, paving stones (
After constructing 42), reinforcement is placed and the foundation slab concrete (
43) and complete the concrete pouring work.

Effects of the Invention As described above, according to the present invention, connection holes for connecting anchors buried in the foundation concrete are formed in the wall panel that is installed before the foundation concrete is poured. Therefore, such anchors can be easily installed using these connecting holes, and because the anchors connect the wall and foundation slab concrete as one, problems such as uneven settlement of the wall and concrete side are eliminated. This has the effect of being done.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of the main part showing the installation condition of the anchor buried in the foundation slab concrete, and Figure 2 shows the installation condition of the anchor in this panel before the panel is installed. FIG. 3 is an exploded perspective view of each anchor and long nand, FIG. 4 is a perspective view of a workbench for manufacturing the panels of this invention, and FIG. 5 is a concrete formwork. FIG. 6 is a perspective view showing the state in which the blocks are being placed, FIG. 6 is a perspective view of the panel produced on the workbench, and FIG. 7 is
Similarly, FIG. 8 is a vertical cross-sectional view of the panel, and FIG. 8 is a perspective view of each panel body connected on site to form a through panel.
Similarly, Fig. 10 is a longitudinal sectional view of the main part of the through panel, Fig. 10 is a perspective view of the end of the wall connection, and Figs. FIG. (13)... Panel body, (14)... Through panel,
(27)... Connection hole, (36)... Wall anchor,
(37)...Anchor on the concrete side, (43)
...Foundation concrete. Patent Applicant Sekisui House Co., Ltd. Agent Patent Attorney Hisayuki Tarumoto Figure 2Kimi Old Nihon Nimi Keiguchi Figure 17 Figure 13

Claims (1)

[Claims] 1. A wall panel for a construction method in which a wall panel is installed and a foundation slab concrete is poured in the bottom portion surrounded by the wall panel, which includes A wall panel for a basement or the like, characterized in that a connecting hole for connecting an anchor buried in the foundation concrete to the wall panel is formed on an inner side surface. 2. A patent claim in which the wall panel is a disposable formwork panel having a hollow part for pouring concrete, and an anchor buried in the foundation slab concrete is connected to an anchor placed in the panel. Range Wall panels for basements, etc. as described in item 1.