JP2759707B2 - Tilt-up method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for tilting up a wall plate in a building made of steel reinforced concrete, reinforced concrete, etc., and in particular, a post-installation work under a beam or a ceiling slab of a pre-constructed skeleton. The present invention relates to a tilt-up method for a reinforced concrete wall.

"Problems to be Solved by Conventional Techniques and Inventions" Conventionally, reinforced concrete walls, for example, partition walls, boundary walls, doorways, etc., under beams or ceiling slabs of building frames such as steel reinforced concrete, reinforced concrete, etc. previously constructed. When the inner wall such as a wall or the underground outer wall in the reverse beating method is to be installed later, an in-situ casting method in which formwork, reinforcing bars, and concrete driving are performed at the current position has become common.

By the way, in recent years, due to the lack of labor, there has been an increasing number of industrialized construction methods in which walls are made of Pca plates (precast concrete plates), lifted with a crane, etc., and set in place. With respect to the wall, the crane or the like cannot be used because the upper part of the construction site is closed, and it is difficult to adopt the industrialization method.

Therefore, in the prior art, it was inevitable to use a cast-in-place method, and it was considered that stable production was difficult to achieve due to the labor shortage.

The present invention seeks to solve such a problem.

"Means for solving the problem" The present invention is, in the construction of a wall to be subsequently constructed under a beam of a pre-constructed skeleton or under a ceiling slab, in the right place of the beam or ceiling slab near the wall construction site, The hanging hardware is detachably equipped, the lifting hardware such as a chain block and a chain hoist are supported by the hanging hardware, and the Pca wallboard is manufactured in a prone position on the floor adjacent to the wall construction site. Then, the Pca wall plate is lifted and erected by the hoisting device and fixed at a fixed position.

"Operation" The structure as described above, the hanging hardware mounted in place on the beam or ceiling slab enables the support of hoisting equipment such as chain blocks and chain hoists, and the hoisting equipment is installed at the wall construction site. Enables fabrication, erecting and anchoring of Pca wallboard on adjacent floors.

Embodiment 1 1. FIGS. 1 to 9 relate to a first embodiment of the present invention. In particular, FIGS. 1 to 7 sequentially show the procedure of construction. Hereinafter, this procedure will be described.

I. Fig. I At the wall construction location A under the beam of the steel reinforced concrete skeleton according to the preceding construction, the beam anchoring part of the beam 1 and the floor 3 and the appropriate place of the beam 1 and the ceiling slab 2 in the vicinity (described below) The plurality of inserts 4 are appropriately disposed above the mold.

Further, on the floor adjacent to the wall construction site A, a formwork 5 for temporarily manufacturing a required number of Pca wallboards in a prone position is temporarily provided, and inside the formwork, reinforcing bars 6 necessary for each Pca wallboard are provided. And a required plurality of inserts 7 are appropriately arranged. Furthermore, in the formwork,
An engaging hardware 8 (refer to FIGS. 3 to 6 and 8) with an anchor is arranged on each side of the leg of each Pca wall plate, and is located at one edge of the head of each Pca plate. Then, the butting hardware 9 with the anchor is arranged.

II. Fig. 2 Concrete 10 is poured into form 5 and cured.
The required number of Pca wallboards 11 are manufactured.

III. Fig. 3 Each insert 4 of the beam 1 in the wall anchoring section
The receiving metal 12 against the wall plate 11 is fixed with bolts, and the Pca wall plate 11 is attached to each insert 4 of the floor 3 of the wall fixing portion.
Are fixed to the plurality of pin bases 13 with which the respective fittings 8 are engaged by bolts. As shown in FIG. 8, the pin base 13 has a U-shaped base member 14 on which a pin 15 is provided, and the pin is mounted in parallel with the wall surface of the wall to be constructed. Where the Pca wallboard is adjacent, a wide pin base 13 shown in FIG. 9 is used for both sides.

In addition, the hanging hardware 16 is detachably screwed to each of the inserts 4 arranged on the beam 1 and the ceiling slab 2 near the wall fixing portion, and of these hanging hardware, the beam 1 and the ceiling slab 2 are appropriately connected. A hoisting device 19 such as a chain block and a chain hoist is connected to each of the two objects via the U-link 17.
To support.

Furthermore, the hanging hardware 20 is detachably screwed to each of the inserts 7 of the Pca wall plate 11 corresponding to the hoisting devices 19, and of these hanging hardware, the one on the leg side is:
Hook 22 of hoisting device 19 on beam 1 side via U-link 21
The hook 22 of the hoisting device 19 on the ceiling slab 2 side is engaged with the one on the head side via the slinging wire 23.

Then, those hoisting devices 19 are wound up, and their Pca
The wall plate 11 is lifted and removed from the mold 5, and then both the engagement hardwares 8 are respectively engaged with the pins 15 of the predetermined pin base 13.

IV. Fig. 4 Another lifting device 19 is mounted next to the lifting device 19 on the beam 1 side, and the lifting device 19 on the ceiling slab 2 side.
And attach U-links to the hanging hardware 20 on the head side, respectively.
The hooks 22 of the two hoisting devices 19 on the beam 1 side are engaged with each other via 21, and then the two hoisting devices are simultaneously wound up, and the Pca wall plate 11 is centered on the pin 15 of the pin base 13. Rotate and build.

V. FIG. 5 At the same time that the Pca wall plate 11 is erected, the abutment metal 9 of the head is abutted against the receiving metal 12 of the beam 1, and the parts are welded and fixed.

VI. Fig. 6 Repeat the above procedure to build all Pca wall boards 11 and fix them by welding. After that, all the hoisting equipment 19,
The hanging hardware 16, 20 and the like are removed, and joints 24 are filled in the gaps between the parts to perform joint claw filling (see FIG. 7), thereby constructing the wall body 25.

In the above construction method, since the pin base 13 is used, it is particularly effective when the floor 3 is the upper floor 18 at the wall construction site A.

2. FIG. 10 shows a second embodiment.

In this case as well, construction is performed in substantially the same manner as in the previous example, except that the wall 25 is constructed below the ceiling slab, and that the groove 26 is used in place of the pin base 13 and the engagement hardware 8.

The groove 26 is formed in the wall fixing portion of the floor 3 at the wall construction point A by Pc
a It is formed slightly wider than the thickness of the wall body 11, and as shown in FIG. 11, an angle 28 fixed with a plurality of anchors 27 is provided on both groove edges, or as shown in FIG. 12, A channel 30 fixed by a plurality of anchors 29 is provided on the inner surface of the concave groove.

An angle 31 fixed by a plurality of anchors is provided on the lower edge of the leg of the Pca wall plate 11, and the leg is inserted into the groove 26 when the leg is erected. After erecting, Pc
aThe angle 31 of the wall plate 11 and the angle 28 or the channel 30 of the concave groove 26 are fixed by welding.

In this case, the decorative board 32 is to be attached after the wall body 25 is built.

If necessary, the pin base 13 may be arranged in the concave groove 26, and the fitting metal 8 may be provided on the Pca wall body 11 correspondingly.

Part 3. FIG. 13 shows a third embodiment.

In this case, too, the construction is performed in substantially the same manner as in the first embodiment, except that a flat steel strip 33 or the like is used in place of the pin base 13 and the engagement hardware 8. That is, it is fixed to the wall fixing portion of the floor 3 at the wall construction site A by the anchor 34 of the flat steel strip 33 having a width wider than the thickness of the Pca wall plate 11, and abuts against one edge of the steel strip 33. An angle 35 for the Pca wall 11 is provided, and an angle 31 fixed by a plurality of anchors is provided at the lower edge of the leg of the Pca wall 11 as in the previous example, and the Pca wall 11 is erected on the steel strip 33. Finally, the angle 31 of the Pca wall plate 11 and the steel strip 33 are fixed by welding.

Note that the hinge 36 may be used for erecting as shown in FIG.

[Effects of the Invention] According to the present invention, the Pca wallboard is manufactured and erected on the floor adjacent to the wall construction site in a prone position, so that the following excellent effects are obtained.

1) The amount of formwork is significantly reduced compared to the cast-in-place method.
It is possible to prevent process delays due to labor shortage.

2) Installation of ducts and other openings and reinforcement work are easy,
It is stable work on the floor.

3) Concrete can be easily poured in as compared with a case where a rising wall is cast at the current position as a post-hitting wall.

4) No need to transport and move Pca wall boards.

5) Systematic construction and management can be performed by a construction unit composed of small groups, and labor can be leveled.

6) From the above, a significant cost reduction (specifically, a cost reduction of about 30% on the construction date) is possible.

[Brief description of the drawings]

The drawings illustrate an embodiment of the invention, and FIGS.
FIG. 7 is a process side view of the first example, FIG. 7 is a cutaway side view of the same example, FIGS. 8 and 9 are enlarged perspective views of main parts of the same example, and FIG. 10 is a cutaway side view of the second example. , FIG. 11 is an enlarged sectional view of a main part of the example,
12 is an enlarged cross-sectional view showing a modification of the main part of the example, FIG. 13 is an enlarged cross-sectional view of a main part of the third example, and FIG. 14 is an enlarged cross-sectional view showing a modification of the main part of the same example. It is. A: Wall construction location 1 ... Beam, 2 ... Ceiling slab 3 ... Floor, 4 ... Insert 5 ... Formwork, 6 ... Reinforcement 7 ... Insert, 8 ... Engagement hardware 9 ... … Bumping hardware, 10… Concrete 11… Pca wall board, 12… Receiving hardware 13 …… Pin base, 14 …… Base member 15 …… Pin, 16 …… Hanging hardware 17 …… U-link, 18… … Upper floor 19… Lifting device, 20… Hanging hardware 21… U-link, 22… Hook 23… Sling wire 24… Joint material, 25… Wall 26… Groove, 27… Anchor 28 …… Angle, 29 …… Anchor 30 …… Channel, 31 …… Angle 32 …… Veneer, 33 …… Strip 34 …… Anchor, 35 …… Angle

Continuation of the front page (51) Int.Cl. ⁶ Identification symbol FI E04B 2/56 632 E04B 2/56 632M 633 633A 633G 642 642A 642F (56) References JP-A-51-46715 (JP, A) JP-A Sho 51-46715 61-179944 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) E04B 2/56 E04G 21/14

Claims (1)

(57) [Claims] In the construction of a wall to be subsequently installed under a beam or a ceiling slab of a pre-constructed skeleton, a hanging metal is detachably mounted at an appropriate position of a beam or a ceiling slab near the wall construction site. Then, a lifting device such as a chain block and a chain hoist is supported by the hanging hardware, and a Pca wall plate is manufactured in a prone position on the floor adjacent to the wall construction site, and the Pca wall plate is placed on the floor. A tilt-up method characterized by being lifted and raised by a hoisting device, and fixed at a fixed position.