JPH0465188B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a foundation construction method for concrete surfaces such as concrete walls, floors, and roofs in concrete structures.

Conventionally, in the case of concrete structures, for example, the foundation construction method for concrete walls requires drilling holes for anchors in the concrete wall and driving hole-in anchors, or taking them out of the concrete in order to attach exterior materials to the concrete wall. A mounting piece having a desired shape is fixed with a fixed anchor bolt, and a necessary rim is attached to the mounting piece by welding, and the exterior material is attached to the rim.

However, such conventional foundation construction methods require on-site welding, and work efficiency is poor due to unevenness adjustment, construction accuracy is poor, distortion due to welding and burnout of the foundation are observed, and welding sparks are a problem. Care must be taken to prevent curing and fires, skilled special engineers are required, and setting up welding equipment is troublesome.
There are drawbacks such as the need for rust prevention repair of welded parts.

Therefore, the purpose of the present invention is to eliminate the welding work on site, to make installation simple and quick, to shorten the construction period, and to provide sufficient stable strength in order to eliminate these conventional drawbacks. The object of the present invention is to provide a foundation construction method for concrete surfaces such as concrete walls, floors, and roofs that maintains the same properties and improves installation accuracy.

According to this invention, the foundation assembly method for a concrete surface involves attaching a base metal fitting to a mounting jig provided on the concrete surface, and attaching a receiving metal fitting for receiving the base material to a bolt previously attached to the base metal fitting. After installation, the base material is inserted into the holder and temporarily fixed, and the surface of the base material can be adjusted by rotating a rotary disk paired with the holder.

Other objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

To explain the case where the foundation construction method of the present invention is applied to a concrete wall, as shown in FIGS. 1 to 5, an anchor hole 2 is drilled in a concrete wall 1, and The hole-in anchor 3 is driven in and the base metal fitting 10 is attached with the anchor bolt 4, and the furring bracket 20 is adjustably attached to the bolt 14 of the base metal fitting 10. It's becoming fixed. A hole-in anchor 3 driven into an anchor hole 2 in a concrete wall 1 is a normal one, and a stepped base metal fitting 10 as shown in the figure is attached to this hole-in anchor 3 with a bolt 4 at one bracket part 11. It is being
A bolt 14 is fixed to the other bracket portion 12 of the base metal fitting 10 by welding. The flange bracket 20 that is adjustably attached to this bolt 14 of the base metal 10 has a U-shaped mounting piece 21.
and the central flange portion 24 of this mounting piece 21.
The rotary disk 31 is rotatably attached to the rotary plate 31 by a rivet nut 35. U
The letter-shaped mounting piece 21 has flange portions 22 on both sides,
The tip of 22 is slightly opened outward to facilitate attachment of the furring 6, and a hole 23 for a mounting screw for attaching the furring 6 is provided. Further, the flange portion 24 at the center of the attachment piece 21 is provided with a hole 25 for attaching the rotary disk 31 and a rib 26 for reinforcement. The rotary disk 31 is made by pressing a metal plate into a circular shape as shown in the figure, and is provided with a stepped protrusion 32 having a hole 33 in the center. Such a rotary disk 31 is rotatably attached to the central flange portion 24 of the mounting piece 21 using a rivet nut 35 and a washer 38. That is, one end of a cylindrical rivet nut 35, which has an internal thread 36 cut at one end and a peripheral flange 37 at the other end, is inserted between the hole 33 of the protrusion 32 of the rotary disk 31 and the center of the mounting piece 21. The washer 38 is inserted into the rivet nut 35 from the inside of the mounting piece 21 and pressed from the tip side of the rivet nut 35 to tighten the rivet nut 35.
By caulking so that the central portion thereof bulges out, the rotary disk 31 can be rotatably attached to the mounting piece 21 using the rivet nut 35.

As described above, according to the present invention, the flange bracket 2 includes the rotary disk 31 rotatably attached to the mounting piece 21.
To attach the rim in the required manner using 0, first mark the anchor position on the concrete wall 1,
An anchor hole 2 is made with a drill, a hole-in anchor 3 is driven into the anchor hole 2, and a base metal fitting 10 is attached with a bolt 4. Next, the locking nut 16 is set in advance on the bolt 14 of the other flange portion 12 of the base metal fitting 10, and the furring bracket 20 is attached. To attach the furring bracket 20 to the bolt 14, attach the rivet nut 35 of the rotary disk 31 of the furring bracket 20 to the bolt 1.
4 and rotate the mounting piece 21 of the furring bracket 20 together with the rotary disk 31, the internal thread 36 of the rivet nut 35 will threadably engage the bolt 14 and the bolt 14 of the base metal fitting 10. The furring bracket 20 is attached. In this way, base metal fitting 1
Attach the furring bracket 20 to the bolt 14 of the base metal fitting 10 while roughly adjusting the unevenness with respect to 0.
In this way, the furring bracket 20 has been roughly adjusted for unevenness.
Next, attach the furring 6. The rim 6 can be temporarily fixed by pushing it into the mounting piece 21 with the open end of the rim holder 20 by the elastic clamping force of both flanges 22 of the mounting piece 21, and then the rim 6 can be attached to the rim by the mounting screws 29. 6 can be fixed to the mounting piece 21 of the furring bracket 20. Next, in order to adjust the unevenness so that the rim surface of the rim 6 is accurately positioned, final adjustment is made by turning the turntable 31 of the rim holder 20, and the locking nuts 16 are tightened in the order of completion. 6. Make accurate installation. A required exterior material 8 can be attached to the flanges 6 that have been accurately positioned and attached in this way using means such as tapping screws.

As mentioned above, the concrete wall of this invention,
According to the foundation construction method for concrete surfaces such as floors and roofs, a base metal fitting is attached using an anchor bolt to a hole-in anchor driven into an anchor hole in the concrete surface, and a receiving metal fitting can be adjusted to the bolt of this base metal fitting. Installation: The base material can then be attached to this bracket, so even if the anchor hole drilled in the concrete is misaligned, you can move the base bracket left and right around the fixing bolt when fixing the stepped base bracket. By shaking the base material, you can attach the bracket to the designated position, eliminating the need for re-drilling holes.Furthermore, the base material is fixed with mounting screws, making the work easy and easy to install. Since there is no need for welding, anyone can install it without any special skills. In addition, when adjusting the unevenness of the base material, rough adjustments are made using the base material's bracket, and fine adjustments can be made easily by rotating the rotary disk, so it is a simple task that does not require skill and can be done in a short time. High installation accuracy can be ensured with a small number of people, and adjustments can be made as appropriate even after the base material is fixed. Furthermore, the base material can be temporarily fixed using the base material holder, so even long base materials can be worked by one person after being attached to the base material holder, and by rotating the base material holder, the base material can be fixed easily. Longitudinal direction,
It can be mounted laterally, diagonally, etc., and has the advantage of not being restricted by directionality.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram showing how a base material such as a rim is attached to a concrete surface using the priming method of the present invention, and Fig. 2 is an exploded perspective view of a rim holder used in the method of the present invention. Figures 3, 4, and 5 are a plan view, a side view, and a front view of the furring holder. In the diagram, 1: concrete wall, 2: anchor hole,
3: Hole-in anchor, 4: Anchor bolt,
6: Rim, 8: Exterior material, 10: Base metal fittings, 1
1, 12: Flange part, 14: Bolt, 16: Locking nut, 20: Flange bracket, 21: Mounting piece, 22, 24: Flange part, 26: Rib, 3
1: rotary disk, 32: protrusion, 35: rivet nut, 38: washer.

Claims (1)

[Claims] 1. A base metal fitting is attached to a mounting jig provided on a concrete surface, and a bolt pre-installed on this base metal fitting is attached to a mounting jig provided on a concrete surface.
After attaching a bracket with a rotary disk in which the mounting piece that receives the base material is rotatably attached with a rivet nut, the base material is temporarily fixed by sandwiching it between the mounting pieces of the bracket, and then it is paired with the mounting piece of the bracket. A method for constructing a base material for concrete surfaces such as concrete walls, floors, and roofs, which is characterized by being able to adjust the surface of the base material by rotating a rotating rotary disk. 2. Claim 1, characterized in that the base material can be attached in any direction, such as horizontally, horizontally, vertically, diagonally, etc., without being constrained by directionality, depending on the rotational position of the rotary disk. The foundation construction method described in section.