JPH07229312A - Warp-correction method of erection panel - Google Patents

Abstract

PURPOSE:To correct the warp of a panel erected in a structural body of a building, without use of mortar. CONSTITUTION:A correcting tool 15 is fixed on a member 14 to be fixed provided in a panel 11 to be corrected and actuated by using the normal panels 12, 13 adjacent to the panel 11 to be corrected, as the support points of the correcting tool 15. After the warp of panel 11 has been corrected in such a way, a curing agent P is poured into the joints 21 between the corrected panel and the adjacent normal panels to prevent the stress resulting from the strain front generating in the panel 11 to be corrected by means of the adjacent normal panels.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for correcting warpage of a panel, particularly a lightweight aerated concrete (ALC) panel, which is built in a structural frame of a building.

[0002]

2. Description of the Related Art Since a panel installed in a structural frame of a building is generally long, depending on the physical performance of the panel, the panel may have a curved shape during the manufacturing process, the storage process, or the transportation process. May exhibit a "warp" phenomenon. When the panel warps, as shown in FIG. 3, when the panel to be straightened (panel to be straightened) 1 is installed in a structural frame (not shown) of a building, another normal non-warped area adjacent to it is installed. When the panel 1 is viewed from the surface in a direction orthogonal to the thickness direction of the panels 2 and 3 (so-called in-plane direction), the panel 1 to be corrected appears to be more swollen than the other panels 2 and 3, or conversely when viewed from the back surface. There is a problem that it looks dented and the appearance of the building is significantly impaired.

Therefore, conventionally, a wire 4 is passed through the joint portion 6 between the panel 1 to be corrected and the normal panels 2 and / or 3 adjacent to the panel 1 in an elliptical shape, and a rigid body is provided on both ends of the wire 4. By tightening the wire 4 through 7, the panel 1 to be straightened is straightened so that the normal panels 2 and / or 3 are flush with each other, and then mortar is poured into the joint portion 6 between the two to harden it. The panel 1 was fixed in order to eliminate the warp of the panel 1 to be corrected (wet fixing method).

However, in recent years, in order to improve the construction efficiency, a so-called dry construction method has been adopted in which mortar is not used in the field of erection of panels, and it has become necessary to perform the panel warp correction method in a dry manner. Therefore, an object of the present invention is to provide a method for correcting the warp of a panel built in a structural frame of a building without using mortar.

[0005]

In order to solve the above-mentioned problems, the present invention provides a method for correcting the warp of a panel built into a structural body of a building by using a correction jig. The correction jig is locked to the locked member provided on the panel, and the panel adjacent to the correction panel is used as a fulcrum of the correction jig to correct the warp of the correction panel. After that, a means of pouring a hardening agent into the joint between the straightened panel and the panel adjacent thereto is adopted. Here, the hardening agent means a substance which has fluidity when it is put into the joint, but hardens after entering the joint name and resists displacement of the adjacent panel. Such typical objects include synthetic resins with or without adhesion.

[0006]

Function: The locked member is fixed to the straightened panel without using mortar. One end of the correction jig is locked to the locked member. Then, a fulcrum of the straightening jig is provided on a normal panel adjacent to the straightened panel, and when the straightening jig is operated, the straightened panel becomes flush with the normal panel adjacent to the straightened panel. In that state, a curing agent is poured into the joint between the two types of panels to integrate them. If there are normal panels on both sides of the panel to be straightened, the straightened panel in particular will be the normal panel.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, normal panels 12 and 13 requiring no correction on both sides of a panel 11 to be corrected, in which the middle bulge bulges toward the front side, are installed in a structural frame (not shown) of the building. It is rare.

An anchor 14 which is a locked member is driven into the back surface side of the panel 11 to be corrected by a drill (not shown) so as to be fixed to the panel 11 to be corrected without substantially using mortar or adhesive. It

A correction jig 15 is set on the back side of the three panels 11, 12, and 13. The straightening jig 15 in this embodiment has a jig body 16 made of a single rigid body having a length larger than the width of the panel, and a double-threaded screw bolt 18 inserted through a through hole 17 formed in the center thereof. And substantially two sleepers 19 and a nut 20 screwed to the bolt 18.

In order to set the correction jig 15, first, one end of both screw bolts 18 is screwed into the anchor 14, and the other end of the bolt 18 is inserted into the through hole 17 of the jig body 16. Lightly screw the nut 20 onto the other end,
The correction jig 15 is temporarily fixed to the panel 11 to be corrected.
Then, at both ends of the jig body 16, the jig body 1
A sleeper 19 is interposed between 6 and the normal panels 12 and 13.

Then, the double screw bolt 18 of the straightening jig 15
The front end of the anchor is locked to the anchor 14 that is the locked member of the panel 11 to be corrected. In this state, when the nuts 20 at the other ends of the bolts 18 are fully tightened, the panel 1 to be corrected is no longer resisted by the tightening force.
1 is pulled toward the jig body 16 side.

Finally, as shown in FIG. 2, the warp of the panel to be straightened 11 is straightened so that the three panels 11, 1 are bent.
2 and 13 are flush with each other. In this state, a blind hole 22 common to the joint 21 between the adjacent panels is drilled from the back side of the panel at a position relatively above the panel.
Then, an adhesive that can bond the panels to the hole 22 is injected as a curing agent. Further, this adhesive flows down from the blind hole 22 through the slight gap formed in the joint 21. Then, eventually the adhesive cures. In this embodiment, an adhesive having a viscosity that flows down the gap is used.

When the straightening jig 15 is removed from the panel 11 to be straightened after the adhesive is hardened, the normal panel 1 is adjacent to the internal strain of the panel which causes the warp of the panel.
The internal strain is suppressed by the bending resistances of 2 and 13 so that the internal strain is hard to be manifested. As a result, the warp is corrected and the panel 11
The surface condition of the panel is almost the same as those of the other panels 12 and 13. Therefore, the appearance of the building is not spoiled.

The present invention can be carried out by partially modifying the above-described mode within the scope of not impairing the effect remarkably by following the fundamental technical idea. For example, it is not necessary to have normal panels on both sides of the panel to be corrected at all times, and only one normal panel may be provided if the degree of warpage is small. In this case, an operator may support one end of the jig body 16 or a column to correct the adhesive until the adhesive injected between the common joints is cured.

The present invention can be applied to any panel that is susceptible to warpage, but is preferably applied to a lightweight cellular concrete (ALC) panel in which a locked member is easily attached. In the above embodiment, the anchor was used as the locked member from the viewpoint that the anchor is not exposed on the surface side of the ALC panel.
Not only the locked portion penetrating the LC panel can be used, but also the through hole itself can be used as the locked portion.

[0016]

INDUSTRIAL APPLICABILITY As described in detail above, the present invention exhibits an excellent effect that the warp of the panel built in the structural frame of the building can be corrected by a simple method and without using mortar.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which a straightening jig is set on a panel to be straightened according to an embodiment of the present invention.

FIG. 2 is a view showing a state in which correction of a panel is completed in the above embodiment.

FIG. 3 is a perspective view showing a conventional technique.

[Explanation of symbols]

 11 Corrected panel 12 Adjacent normal panel 13 Adjacent normal panel 14 Engagement member 15 Straightening jig 21 Joint P Curing agent

Claims (3)

[Claims] 1. A method for straightening a warp of a panel built in a structural body of a building by using a straightening jig, wherein a locked member (1) provided on a straightened panel (11).
The warp of the panel to be straightened by locking the straightening jig (15) to 4) and causing the normal panel (12, 13) adjacent to the straightening panel to act as a fulcrum of the straightening jig. A method for straightening a warp of a built-in panel, which comprises pouring a hardening agent (P) into a joint (21) between the straightened panel and a normal panel adjacent to the straightened panel after the straightening is performed. 2. The pouring of the curing agent to the joint is
The method for correcting a warp of a built-in panel according to claim 1, wherein the method is performed from an injection hole formed in a contact portion existing between the corrected panel and a panel adjacent thereto. 3. The warp correction method for a built-in panel according to claim 1, wherein the panels to be corrected are present between normal panels.