JPH0338329Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a method for supporting a frame plate on the semi-precast concrete plate when concrete is poured between the semi-precast concrete plate and the frame plate during construction of a wall surface of a building, etc. Regarding equipment.

In recent years, semi-precast construction methods have come into widespread use, as they overcome the drawbacks of concrete cast-in-place construction methods and factory-produced prefabricated construction methods.

This uses the semi-precast concrete plate A shown in FIGS. 1 and 2. Hereinafter, to explain this semi-precast concrete plate A, the three-dimensional truss beams shown in Fig. 1 are arranged in parallel on the horizontal reinforcement 2 in one direction as shown in Fig. 2, and the lower chord member 3 of the truss beam 1 is buried. It is fixed with concrete 7 to the extent that In addition, 4 is concrete 7
5 is a top chord, and 6 is a lattice that supports the top chord 5.

This semi-precast concrete plate A is produced in advance in large quantities at a factory, transported to the site, and attached to a steel frame constructed at the site by bolting or the like. Then, frame plates 8 are placed in parallel on the truss beam 1 side at regular intervals, fresh concrete is poured between the frame plates 8 and the semi-precast concrete plate A, and after curing, the frame plates 8 are removed and It is to be used as a wall surface.

In this way, the semi-precast construction method uses semi-precast concrete plates A, which shortens the construction period, which is an advantage of the prefabricated construction method, and because the concrete is poured on-site, it is watertight, which is an advantage of the concrete casting-in-place method. This means that you can also improve your sexuality.

By the way, in this semi-precast construction method, in order to cast concrete on-site as described above, the frame plate 8 must be placed in parallel with the semi-precast concrete plate A at a certain interval. In order to attach this frame plate 8, a screw tube 9 is welded to the top of the lattice reinforcement 6 in advance, and a bolt 10 is inserted from the front side of the frame plate 8 at the site and screwed into the screw tube 9. , the frame plate 8 was fixed.

However, with this method, the screw tube 9 is often installed at an angle when welding to the lattice bar 6, which makes it difficult to thread the bolt 10 and the screw tube 9 together when the bolt 10 is inserted. Further, even if they were screwed together, there were drawbacks such as the bolts 10 being installed at an angle and the frame plate 8 being installed at an angle.

The present invention was developed in view of the above points, and involves embedding a spiral tube in concrete and forming an enlarged section at the entrance of the spiral tube, and this enlarged section allows bolts inserted from the frame plate to be inserted. To provide a supporting device for a frame plate for concrete pouring, whose tip is guided into a spiral tube and is easily screwed together.

An embodiment of the present invention will be described below with reference to FIG.

Note that the same reference numerals as in FIGS. 1 and 2 indicate the same members, and their explanations will be omitted.

Reference numeral 11 denotes a spiral tube embedded during the manufacture of the semi-precast concrete plate A, and a bulging portion 11a serving as a stopper and a rotation stopper is integrally formed. Further, reference numeral 12 is a guide made of synthetic resin or the like that is fitted into the tip of the spiral tube 11 and is spread out in the shape of a flap, and its base 12a is buried together with the spiral tube 11 when it is buried.

Thus, a frame plate 8 is placed in parallel with the semi-precast concrete plate A at a constant interval, and the frame plate 8
The hole 8a formed in the hole 8a is made to correspond to the spiral pipe 11 buried in the semi-precast concrete plate A. When the bolt 10 is inserted and pushed through the hole 8a of the frame plate 8, the tip of the bolt 10 substantially corresponds to the spiral tube 11. Here, at the tip of the spiral tube 11 is located a guide 12 which is spread out in a flared shape, so the tip of the bolt 10 is guided by this guide 12 and reaches the female threaded portion of the spiral tube 11. Therefore, bolt 1
By screwing in the frame plate 8 to the spiral tube 11, the frame plate 8 can be fixed to the front surface of the semi-precast concrete plate A at a constant interval.

In the above embodiment, the guide 12 was constructed as a separate member from the spiral tube 11, but the guide 12 may be formed integrally with the spiral tube 11.

Furthermore, although the above description has been made regarding the case where concrete is poured onto the front surface of the semi-precast concrete plate A, it can also be applied to cases where the wall thickness of an existing building is increased and the decoration is redone. That is, by driving a spiral tube into an existing concrete wall and attaching a guide to the tip thereof, the frame plate can be easily installed in parallel to the concrete wall.

As mentioned above, in this invention, a spiral tube is buried in a concrete plate (wall) and a guide that is widened in the shape of a rattle is placed at the tip of the spiral tube, so that a frame installed in parallel with the concrete plate (wall) is installed. The tip of the bolt that is inserted through the hole in the plate can be introduced into the spiral tube through the guide, and therefore the frame plate can be quickly and easily installed side by side with the concrete plate (wall). It has the following.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views of a truss beam buried in a conventional semi-precast concrete plate, a cross-sectional view of a semi-precast concrete plate in which the truss beam is buried and frame plates are installed side by side, and Figure 3 is a perspective view of the truss beam buried in a semi-precast concrete plate. FIG. 2 is a sectional view showing an example of the concrete pouring frame support device according to the invention. A... Semi-precast concrete board, 8... Frame board, 10... Bolt, 11... Spiral tube, 12... Guide.

Claims (1)

[Scope of utility model registration request] At the tip of a spiral pipe buried in a semi-precast concrete board, a guide is formed to protrude from the surface of the semi-precast concrete board, and when pouring the semi-precast concrete board on-site, it is possible to The tip of the bolt inserted from the side of the frame plate installed at a constant distance from the precast concrete plate is introduced through the guide and screwed into the spiral tube to hold the frame plate. Support device for concrete pouring frame.