JPH0776465B2 - ALC vertical wall panel installation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is easy to mount when a lightweight cellular concrete (ALC) panel is used as a vertical wall as a wall material of a building, and the strength of the mounting portion is high. It relates to a method for mounting ALC vertical wall panels that are strong and extremely earthquake-resistant.

[Conventional technology]

Conventionally, as a panel mounting method when forming a vertical wall of a building using an ALC panel, a reinforcing bar is placed in a groove provided in a vertical joint portion of the panel, and the groove is filled with cement mortar. The method of fixing them to each other was common. As a typical example thereof, as shown in FIG. 7, for example, an upward ruler angle 3 is provided on an upper surface of an upper flange 2 of a beam 1 along the longitudinal direction of the beam 1, and an outer vertical surface thereof is a beam 1.
The upper flange 2 is fixed so as to slightly project outward from the end portion, and the receiving object 5 is fixed horizontally from the ruler angle 3 to the vertical joint portion of the panel 4 in the horizontal direction.
Both ends of the width direction of the joint are placed on the receiving object 5, joint joints 7 are arranged in joint grooves 6 provided on the longitudinal side surfaces of the panel 4, and the lower ends of the joint reinforcing bars 7 are welded to the receiving article 5. The joint groove 6 is filled with cement mortar to fix the lower part of the panel.

In addition, as a method of attaching the upper part of the panel 4, in order to provide a seismic resistant structure, a downward ruler angle 8 is provided on the lower surface of the upper flange 2 of the beam 1 at the vertical joint part of the panel 4, and a ruler angle with its vertical outer surface facing upward. 3 is fixed so as to coincide with the outer vertical surface of 3 and is welded to the side surface near the upper end of the joint groove 9 arranged near the upper end of the joint groove portion 6, as shown in FIG. And a slide flag hardware made up of hardware 11 fixed so that its surface is parallel to the joint line 9.
The inner surface of the panel 4 is mounted by positioning the inner surface of the panel 4 on a desired surface by loosely fitting the downward ruler angle 8 into the notch 13 of 12.

As another method of mounting the upper part of the panel, a method of bolting the central part of each panel in the width direction to a metal or the like protruding from a beam or the like with a washer is used. A specific example is shown in FIG. Show. That is, the upper side of the panel 4 is provided with the same downward-pointing ruler angle 8 as described above, and the curved strip-shaped inner plate 14 is inserted into the panel 4 through the bolt 15
There is also a construction method in which the protruding portion of the downward ruler angle 8 is loosely fitted in the gap formed between the inner plate 14 and the inner surface of the panel 4 by using the lock.

Recently, for example, as shown in No. 61-95807,
A method has been proposed that improves the earthquake resistance without fixing the vertical joints of the panels to each other.
As shown in FIG. 11 and FIG. 11, a hanging piece 18 is provided on the side opposite to the panel surface of the vertical flange 17 of the mounting hardware 16 having an L-shaped cross section, and a gap 19 between the vertical flange 17 and the hanging piece 18 is provided perpendicular to the ruler angle 3. Department
20 is fitted and fixed to the vertical flange 17, and the plate 22 is inserted into the opening 21 of the vertical flange 17 which is opened downward.
The center part of the ALC panel 4 is placed on top, and the vertical joint part of the ALC panel is a receiving plate 24 suspended on the ruler angle 3.
To maintain a gap with the ruler angle 3 and to secure the upper and lower parts of the panel to the mounting hardware 16 or the plate 22 with mounting bolts 25 protruding from the panel surface. The vertical joint of the ALC panel is mortar or the like. There is also a construction method that allows adjacent panels to slide slightly vertically without fixing with.

[Problems to be solved by the invention]

However, in the method of arranging the reinforcing bars in the joint groove 6 among the above-mentioned mounting methods, since the joint reinforcing bars 7 and 9 are not intertwined with the reinforcing reinforcing bar arranged in the panel 4, the joint reinforcing bars 7 and 9 are not entangled. The panel mounting strength due to is due to the shear strength of ALC only, and there is a drawback that when a large load is applied in the direction of the outer surface of the panel 4, the joint portion on the inner surface of the panel 4 cracks.

Moreover, in the method of bolting each panel 4,
The surface of the bolt 15 is made flat by using a repair material so that the end surface of the bolt 15 cannot be seen. There's a problem.

Also, in the mounting method disclosed in Japanese Utility Model Publication No. 61-95807, the mounting hardware is
When 16 is fixed to the ruler angle 3, the welding length is likely to be insufficient, and the welding becomes a stand-up welding, so that it requires skill in the work, and the number of parts used increases and the cost increases. There are drawbacks such as the need for accurate positional accuracy of the embedded metal parts on the upper and lower parts of the panel.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above drawbacks and to provide a panel mounting method which is extremely simple to construct and has excellent earthquake resistance.

[Means for solving problems]

The present inventors have reached the present invention as a result of conducting research to solve the above problems and achieve the above object.

That is, the construction method of the present invention is to bolt the lower wall panel mounting hardware whose cross section is bent into an inner shape to the upper part in the center of the width direction of the lower wall panel by bolting. The upper part, which is in contact with the inner surface of the upper part and is bent, has a locking part for a ruler angle with a U-shaped cross section and a horizontal part for the part further extended to the upper part. The lower wall panel mounting hardware is fixed to the ruler angle, and the upper wall panel is installed by temporarily fixing the L type cross-section upper wall panel bracket to the lower center edge of the panel width direction, and the nut mounted on the upper wall panel bracket. Screw the bolt onto the top of the lower wall panel mounting hardware top horizontal portion to adjust the lower end height of the upper wall panel, and lower the upper wall panel to the upper wall panel receiving hardware and the lower wall panel mounting hardware. Bolt together and fix, Nell longitudinal joint is obtained by construction to maintain equal spacing between the panel and the ruler angle by receiving plate attached to the ruler angle.

〔Example〕

 Embodiments of the present invention will be described in detail below with reference to the drawings.

1 is a partial front view showing an embodiment in which a panel is attached according to the method of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional view taken along the line BB, and FIG. FIG. 5 is a perspective view of the lower wall panel mounting hardware, FIG. 5 is a perspective view of the upper wall panel bracket, and FIG. 6 is a perspective view of the receiving plate.

Reference numeral 1 is a beam and usually H-shaped steel is used, and 3 is a ruler angle. 26 is a lower wall panel mounting hardware, 27 is an upper wall panel, 28 is a lower wall panel, and the lower wall panel mounting hardware 26 is bent in a cross section as shown in FIG. Has a hole 30 for mounting in the lower wall panel, the outer surface of the lower portion 29 is brought into contact with the lower wall panel 28, and the lower wall panel is attached by the mounting bolt 31.
It is screwed into an embedded hardware 32 with a screw hole embedded in the center of the upper part of 28. The upper part 33 bent into a lightning shape has the engaging parts 34 for the ruler angle, which are bent inwardly in a U shape on both sides, hooked and fixed to the ruler angle 3.
Further, the central top portion of the upper portion 33 has a horizontal portion 35 bent inward at a right angle, and a mounting hole 36 is provided between the engaging portion 34 and the horizontal portion 35.
Is open. The horizontal portion 35 does not have to have a bent top portion as long as it horizontally projects from the upper portion 33. 37
Is an L-shaped upper wall panel receiving member, in which the L-shaped horizontal portion 43 is in contact with the central lower edge of the upper wall panel width direction, the vertical portion 38 has a mounting hole 39, and the nut 40 is axially provided on the upper portion thereof. Are welded so that they are vertical, and the ends of the bolts 41 screwed into the nuts 40 are placed on the horizontal portion 35 of the lower wall panel mounting hardware 26.
It is screwed into an embedded metal article 32 with a screw hole, which is embedded in the lower center of the upper wall panel by penetrating the mounting holes 36 and 39 by 42. The step of the downward bending of the lower wall panel mounting hardware 26 is made equal to the thickness of the vertical portion 38 of the upper wall panel hardware 37.

There is a third
A receiving plate 44 is attached as shown in the figure. As shown in FIG. 6a, for example, the receiving plate 44 is formed by bending an iron plate so as to have two U-shaped cross-sections having different inner widths, and hooking it on the ruler angle 3 with the central U-shaped 45. The four corners of the vertical joint portion and the horizontal joint portion of the panel are in contact with the U-shaped portions 46 on both sides, and each panel can maintain the same interval as the ruler angle in both the widthwise center and both sides. You can do it. FIG. 6b shows another embodiment of the receiving plate 44, in which a thin iron plate can be pleated to achieve the desired purpose.

The vertical side surface of the ALC panel to be used is a so-called dry method without fixing with cement mortar or the like,
It is necessary that the side surfaces are not fixed to each other at least in the in-plane direction by using butting, permanent imprinting, hiring imperfections, etc., so that each panel can be locked during an earthquake. Is.

The embedded metal object 32 with a screw hole in the ALC panel is, for example, a hole described in Japanese Unexamined Utility Model Publication No. 60-152715 proposed by the applicant, in which a hole for an anchor member is dug from the small edge of the panel with an electric chainsaw, and Blind holes for mounting bolts can be bored from the surface so as to be orthogonal to this, and the embedded hardware 32 with screw holes can be embedded and fixed.

Next, a method of mounting the panel will be described.

Attach the receiving plate 44 to the panel vertical joint of the ruler angle 3. When installing a panel one layer below, bolts 31 are attached to the lower wall panel mounting hardware 26 so that the lower wall panel mounting hardware 26 projects to the upper part of the panel.
Is mounted by screwing on the embedded hardware 32 with a screw hole embedded in the center of the upper part of the panel, and the U-shaped engaging portion 34 is hooked on the ruler angle 3 to be built. After the height of the lower surface of the lower wall panel 28 is adjusted, the lower wall panel mounting hardware 26 is fixed to the ruler angle 3 by welding. Next, the upper wall panel receiving member 37 is temporarily fixed to the central lower edge of the upper wall panel width direction, the bolt 41 is screwed into the nut 40 fixed to the upper wall panel receiving member 37, and the upper wall panel 27 is installed. Place the tip of 41 on the top horizontal portion 35 of the lower wall panel mounting hardware 26, and insert the mounting bolt 42 through the washer 47 into the hole 39 of the upper wall panel mounting hardware and the mounting hole 36 of the lower wall panel mounting hardware 26. After mounting it on the embedded hardware 32 with a screw hole embedded in the lower center of the upper wall panel,
The lower surface of the upper wall panel 27 is aligned by adjusting 41, and the bolt 42 is tightened to fix the panel.

〔effect〕

According to the installation method of the present invention, the installation work is easy because it is a so-called dry method that does not use cement mortar or the like.
The construction speed is fast, and even if the upper wall panel and lower wall panel are fixed, even if the position accuracy of the embedded hardware with screw holes in the panel is inaccurate, the lower wall panel mounting hardware has a long hole or a large hole. Since it has a large flexibility, it has a large flexibility, and with regard to seismic resistance, it can be used as a fixed type receiving object in which the upper wall panel is projected from the ruler angle as in the conventional construction method or a receiving object protruding and fixed from the metal object attached to the upper part of the lower wall panel. Instead of placing it, place the tip of the bolt that is screwed into the nut that is fixed to the receiving object that supports the center of the panel width direction, on the horizontal part 35 of the lower wall panel mounting object that is fixed to the ruler angle to substantially reduce the panel load. Since it is supported at one point, the lower part of the panel can swing around the tip of the bolt 41, and both the upper part of the panel and the lower part can rotate around the mounting bolts, so the interlayer deformation of the steel frame body can occur even during an earthquake. Received However, since the panel can easily undergo locking deformation and follow, its effectiveness is extremely great.

[Brief description of drawings]

FIG. 1 is a partial front view showing an embodiment of the method of the present invention, and FIG.
1 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional view taken along the line BB, FIG. 4 is a perspective view of the lower wall panel mounting hardware, FIG. 5 is an upper wall panel receiving metal, and FIG. Perspective view of the receiving plate, No. 7-
FIG. 9 is an explanatory view showing a conventional construction method, and FIGS. 10 and 11 are explanatory views showing another conventional construction method. 1 ... Beam, 3 ... Ruler angle, 7, 9 ... Joint, 16 ...
… Mounting hardware, 17 …… vertical flange, 18 …… hanging piece, 21 ……
Aperture, 23 …… Side flange, 24, 44 …… Support plate, 26
...... Lower wall panel mounting hardware, 27 …… Upper wall panel, 28 …… Lower wall panel, 31,42 …… Mounting bolts, 32 …… Embedded hardware with screw holes, 35 …… Horizontal part, 37 …… Upper Wall panel hardware.

Claims (1)

[Claims] Claim: What is claimed is: 1. An upper ruler angle is fixed by protruding slightly from the upper surface of the beam to the edge of the beam, the lower wall panel is bent in an arc shape, and the lower part thereof abuts the lower wall panel, and the upper part thereof engages the ruler angle. A lower wall panel mounting hardware having a mating portion and a horizontal portion projecting inward of the top is bolted to an embedded hardware with a screw hole embedded in the center of the upper part of the panel, and then the lower wall panel The mounting hardware is fixed to the ruler angle, and the upper wall panel has a section L at the center lower edge in the panel width direction.
The upper wall panel metal fitting of the mold is temporarily fixed and installed, and the bolt tip screwed to the nut axially fixed vertically to the outer surface of the vertical part of the metal fitting vertical portion is attached to the top horizontal part of the lower wall panel mounting metal fitting. Adjust the height of the lower end of the upper wall panel by mounting it, and bolt it through the mounting holes in the upper part of the upper wall panel receiving part and the lower wall panel mounting part to the embedded metal object with screw holes embedded in the lower center of the upper wall panel. In addition, the ALC vertical wall panel installation method is characterized in that a receiving plate that holds the panel and the ruler angle at equal intervals is attached to the vertical joint of the panel of the ruler angle.