JP5217022B2 - Lightweight cellular concrete panel mounting structure - Google Patents

Description

  The present invention relates to a panel mounting structure when a lightweight cellular concrete (ALC) panel (hereinafter referred to as an ALC panel or simply a panel) or the like is used as a roof or floor of a building.

  In the case of using ALC panels as the roof and floor of a building, as a method of laying a plurality of panels horizontally on the beam of the building frame and fixing the panel to the beam, a conventional wet construction mounting structure is used. Is adopted. In other words, in a wet method of joining both using mortar or the like, the lower portions on both sides of a slab plate, a marcan, etc., which are mounting hardware, are welded and fixed to the beam.

Moreover, as a connection structure of the joint part of the ALC panel for floors or roofs, for example, a structure as shown in FIG. 9 has been conventionally employed (for example, see Patent Document 1).
That is, as shown in FIG. 9, a plurality of panels 2 are laid on the upper flange surface of the H-shaped steel beam 1, and the lower portions on both sides of the slab plate 24, which is a fixture, are located at the joints 23 of the panel 2. The upper flange surface of the beam 1 is welded and fixed. Moreover, the hole 27 is provided in the upper part of the slab plate 24, the joint rebar 25 is penetrated, and the joint part 23 is filled with mortar 26.

  As the fixture in FIG. 9, a round can 28 as shown in FIG. 10B may be used in addition to the slab plate 24 shown in FIG. The slab plate 24 is a flat steel piece 20 with a horizontally long hole 27 formed in the upper portion thereof, and the round can 28 is formed by bending a steel bar 21 into an L shape and forming a hole 27 at one end. In either case, the lower end is fixed to the flange surface of the beam 1 by welding. These fixing brackets easily fall in the direction of the arrow in the figure, and it is difficult to stand on the beam. FIG. 11 is an external perspective view showing a state in which the slab plate 24 shown in FIG. 10A is fixed to the upper flange surface of the beam 1 by welding. The lower end of the slab plate 24 is welded onto the upper flange surface of the beam 1, and the joint rebar 25 is passed through a horizontally long hole 27 provided at the upper center of the slab plate 24. In the figure, 18 indicates a welding beat.

Japanese Patent Laid-Open No. 9-177195

In such a panel mounting structure, the slab plate 24, which is a fixture, has a thin plate thickness, and the round can 28 is not flat at the bottom, so that it cannot be placed in a self-supporting state on the beam. It is difficult to adjust the mounting position in the work and fix it by vertical self-supporting.
In order to improve this point, as shown in FIG. 12, fixing metal fittings 35 and 36 are proposed in which projecting pieces 22 for preventing overturning are formed on the flat surface of a flat steel piece 20 of a slab plate. The protruding piece 22 may be formed by bending both ends of the flat steel piece 20 at a right angle as shown in FIG. 12 (a), or at the center of the flat steel piece 20 as shown in FIG. 12 (b). It may be attached by welding. Thus, by providing the projection pieces 22 protruding from the plane at right angles, the slab plate becomes self-sustaining in the beam top surface, so be able to use two hands when working on the beam, thereby facilitating the work. In the figure, reference numeral 27 denotes a hole for passing through the joint reinforcement.
FIG. 13 is an external perspective view showing a state in which the fixing bracket 35 shown in FIG. 12A is welded and fixed onto the upper flange surface of the beam 1. The lower end of the fixture 35 is welded on the upper flange surface of the beam 1, and the joint rebar 25 is passed through a horizontally long hole 27 provided in the upper center of the fixture 35. In the figure , 18 indicates a welding beat.

However, the fixing bracket (slab plate) shown in FIG. 12 (a) (b) 35, 36 both are composed of thin plate material, the weight of the bracket itself against force tending to overturn the fixing bracket However, the shape is disadvantageous in that the bracket is self-supporting. The ease of falling in the thickness direction of the fixing bracket is disadvantageous as the distance in the thickness direction from the center of gravity to the end of the bracket is shorter, but the center of gravity is shifted to the side where the plate body is located, so the thickness direction toward the plate body side It has a shape that is easy to fall against the force of. Therefore, in the case of the conventional fixing bracket, there is a drawback in that the work efficiency is low in time and labor for positioning the welding position on the beam, adjusting the orientation and posture, and the like.
The present invention was made in order to eliminate the above-described conventional drawbacks, and by using a member having a specific shape structure for the ALC panel fixing bracket, which is a panel mounting hardware, the welding work efficiency is improved. It is intended to propose an ALC panel mounting structure that can be used.

The mounting structure of the ALC panel according to the present invention is an ALC panel mounting structure in which the ALC panel is horizontally laid on the beam, and the ALC panel is fixed to the beam via a mounting bracket fixed to the beam of the building frame. As the mounting hardware, a thick mounting hardware having a rectangular cross section made of a flat steel plate having a flat bottom portion that can be stably placed in a self-standing state on the beam and having a screw hole on the upper surface, A structure in which a mounting metal is welded and fixed onto the beam so that the axial direction of the screw hole is vertical, a bolt is screwed to the mounting metal via a washer, and an ALC panel is sandwiched between the beam and the washer. It is characterized by what has been done.

As the mounting hardware in the present invention, it is composed of a thick flat steel plate with a rectangular cross section having a flat bottom portion that can be stably placed in a self-standing state on the beam. This is to enable not only stable placement but also simple and quick positioning of the welding position on the beam upper surface, and adjustment of the orientation and attitude. The size of the mounting hardware is not particularly limited, but is made of a flat steel plate having a thickness of 8 mm or more and 20 mm or less and a length of 30 mm or more in order to make the structure difficult to fall on the beam, and the ratio of height to thickness is 3 The following are preferred. That is, the mounting hardware of the present invention is configured such that the section is rectangular and the ratio of the weight of the hardware to the thickness dimension (the width dimension of the protruding piece in the case of the prior art) is increased, and the center of gravity is the thickness direction of the mounting hardware. Because it is almost in the center of the shape, it has a shape structure that is difficult to tip over.

In addition, as a construction procedure for obtaining the mounting structure of the ALC panel of the present invention, the ALC panel is laid horizontally on the beam of the building body, and then the mounting hardware is substantially brought into contact with the side surface of the ALC panel. after hardware with said mounting is welded to the beam at the bottom of the three sides not in contact with the ALC panel, sequentially repeating the operation laying another ALC panels, screwed bolts through the washer to hardware with said mounting, respectively The procedure is to clamp and fix the ALC panel between the beam and the washer.
According to the attachment method of the lightweight cellular concrete panel of the present invention, necessary panels can be sequentially constructed on the building body, and thus there is an advantage that work efficiency is improved.

Mounting structure of a panel of the present invention, in the welding fixation of the mounting hardware, it is possible to fixedly welded mounting hardware after elaborate laying structure Tona order to perform winding welded to one side under the perpendicular direction, the panel, thus In addition to the effect that the scaffolding becomes unnecessary by performing the welding work on the panel laid on the beam and the risk of work at high places can be reduced, it is difficult to fall on the beam as a mounting hardware and in a self-supporting state By adopting a member with a specific shape and structure that can be placed stably, positioning of the welding position on the beam, adjustment of the orientation and orientation, etc. can be performed easily and quickly, and the work efficiency of the welding work can be improved. It can be significantly improved. Therefore, the panel mounting structure of the present invention is extremely useful particularly in applications such as roof panels and floor panels.

It is a partially broken perspective view which shows an example of the attachment structure of the panel of this invention. It is an external appearance perspective view which shows an example of the attachment metal fitting of this invention. It is sectional drawing along line A-A 'of FIG. It is an external appearance perspective view which shows the other example of the attachment metal fitting of this invention. It is sectional drawing at the time of using the attachment metal fitting shown in FIG. It is an external perspective view showing another example of the mounting hardware of the present invention, (a) has a screw hole at one end of the mounting hardware, (b) has a vertical screw hole in the center of the mounting hardware, It has a horizontal hole in the direction orthogonal to the lower end of the screw hole. It is a figure explaining the construction procedure of the attachment method of the panel of this invention. It is a figure explaining the method of welding and fixing the mounting hardware of the present invention on the beam, (a) is a case where the mounting hardware 3 having the screw holes 7 on the upper surface shown in FIG. (B) has shown the case where the vertically long attachment bracket 31 shown in FIG. 4 provided with the hole 8 on the plane is weld-fixed on the beam. It is a partially broken perspective view which shows an example of the attachment structure of the conventional panel. It is a figure which shows the example of the conventional fixed metal fitting, (a) is a slab plate, (b) shows a marcan. It is a figure explaining the method of welding and fixing the slab plate of Fig.10 (a) on a beam. It is a figure which shows the example of improvement of a fixed metal fitting, (a) shows the example which provided the protrusion piece in the both ends of the slab plate, (b) shows the example which provided the protrusion piece in the center of the flat plate. It is a partially broken perspective view which shows the example which fixes the joint part of a panel using the fixed metal fixture shown to Fig.12 (a).

Next, specific examples of the present invention will be described with reference to the drawings.
In addition, as a panel used by this invention, an ALC panel, a hollow panel, a PC panel, etc. are mentioned, These may be used as a roof or a floor of a building, but the following is an ALC panel as a roof as a typical example. The case of using as will be described.
First, the panel mounting structure of the present invention will be described.
FIG. 1 is a partially broken perspective view showing an example of a panel mounting structure of the present invention. In the panel mounting structure 10 of the present invention, the ALC panel 2 provided with the digging portion 2c is horizontally arranged on the beam 1 of the building body, and the mounting hardware 3 having screw holes on the beam 1 is screwed. Is fixed so that its axial direction is vertical, and a bolt 5 is screwed to the mounting bracket 3 via a washer 4 so that the ALC panel 2 is sandwiched between the beam 1 and the washer 4. .

FIG. 2 is an external perspective view showing an example of the mounting hardware of the present invention used in the mounting structure shown in FIG.
Mounting hardware shown in FIG. 2. 3, a plano steel plate 6, are threaded hole 7 is provided on the upper surface 6a. In addition, in order to make the mounting hardware 5 stand by itself stably and embed in a joint width of usually about 20 mm, it is appropriate that the thickness (W) is about 8 to 20 mm. In order to be able to stand by itself stably, it is preferable that the height (H) of the mounting hardware is configured such that the ratio of the height (H) to the thickness (W): H / W is 3 or less. By configuring the mounting hardware in this way, the position of the center of gravity of the mounting hardware is approximately the center in the thickness direction. In order to make the mounting hardware stably stand on the beam, the bottom surface 6b needs to be a smooth surface. The length (L) of the metal fitting is desirably 30 mm or more so as to ensure the welding length.

  FIG. 3 is a cross-sectional view taken along line A-A ′ including the mounting hardware of FIG. 1. As shown in FIG. 3, the mounting hardware 3 having a screw hole is fixed on the beam 1 of the building driving body so that the axial direction of the screw hole is vertical, and the ALC panel 2 provided with the digging portion 2c from both sides is horizontally mounted. The bolt 5 is screwed onto the mounting metal 3 via the washer 4 on the beam 1 so that the ALC panel 2 is sandwiched between the beam 1 and the washer 4. Here, the back surface of the mounting hardware 3 is in contact with one end surface of the ALC panel 2, and the lower part of the other surface of the mounting hardware 3 is fixed to the beam 1 by welding. In the figure, 17 indicates a joint portion and 18 indicates a welding beat.

FIG. 4 is an external perspective view showing another example of the mounting hardware. Mounting hardware 31 shown in FIG. 4 consists of elongated flat bar plate, it is holes 8 provided above the plane 6c. In order to make the mounting hardware stably stand on the beam, the bottom surface 6b of the mounting hardware 31 also needs to be a smooth surface. Further, in order to make the mounting hardware 31 stably stand alone and embed in a joint width of usually about 20 mm, it is appropriate that the thickness (W) is about 8 to 20 mm. In order to be able to stand by itself stably, it is preferable that the height (H) of the mounting hardware is a ratio of the height (H) to the thickness (W): H / W is 3 or less. By configuring the mounting hardware in this way, the position of the center of gravity of the mounting hardware is approximately the center in the thickness direction. In order to make the mounting hardware stably stand on the beam, the bottom surface 6b needs to be a smooth surface. The length (L) of the metal fitting is desirably 30 mm or more so as to ensure the welding length.
The hole 8 is used for passing through the joint rebar 25 and fixing the joint portion of the ALC panel.

FIG. 5 is a cross-sectional view taken along the line including the attachment hardware when the joint portion of the ALC panel is fixed using the attachment hardware 31.
A mounting hardware 31 having a screw hole is fixed on the beam 1 of the building body so that the axial direction of the screw hole is vertical, and the ALC panels 2 are horizontally arranged from both sides. A joint rebar 25 is passed through the hole 8 of the attachment metal 31, and the joint rebar 25 is arranged so as to come to the joint part of the ALC panel to fix the joint part of the ALC panel. Here again, the back surface of the mounting hardware 31 is in contact with one end face of the ALC panel 2, and the lower part of the other surface of the mounting hardware 31 is fixed to the beam 1 by welding. In the figure, 18 indicates a welding beat.

FIG. 6 is an external perspective view showing another example of the mounting hardware, wherein the mounting hardware 32 in FIG. 6A has a screw hole 7 provided at the end of the mounting hardware upper surface 32a, and FIG. The hardware 33 has a screw hole 7 in the center of the mounting metal upper surface 33a, and a hole 8 is made to penetrate the lower end of the screw hole 7 in a direction perpendicular to the screw hole 7 toward the flat surface 33c of the mounting hardware.
Also in the mounting hardware of (a) and (b), it is appropriate to set the thickness (W) to about 8 to 20 mm in order to stably stand alone and embed in a joint width of about 20 mm. In order to be able to stand by itself stably, it is preferable that the height (H) of the mounting hardware is a ratio of the height (H) to the thickness (W): H / W is 3 or less. By configuring the mounting hardware in this way, the position of the center of gravity of the mounting hardware is approximately the center in the thickness direction. The bottom surface 33b needs to be a smooth surface in order to make the mounting hardware stably stand on the beam. The length (L) of the metal fitting is desirably 30 mm or more so as to ensure the welding length.

FIG. 7 is a diagram for explaining the construction procedure of the panel mounting method for obtaining the ALC panel mounting structure of the present invention.
First, the ALC panels 2-1, 2-1,. Next, the mounting brackets 3-1, 3-1,... Are placed on the beam while being brought into contact with the short edge surface of the ALC panels 2-1, 2-1,. After that, the lower parts on one side of the fittings 3-1, 3-1,. In addition, this welding work is normally performed in a state where an operator rides on a panel without assembling a work scaffold.
Since the mounting hardware 3-1 and 3-2 have a flat bottom and have a stable shape, they can stand vertically on the beam. By standing independently on the beam, welding can be performed while keeping the angle accurate.
As a method of fixing the mounting hardware, welding is generally used, and it is safe to ride on a panel laid on a beam so as not to assemble a work scaffold. When the mounting hardware is placed on the beam, a panel is preliminarily laid on the beam, the mounting hardware is substantially abutted on the side of the panel, and the lower part of the three side surfaces where the mounting hardware is not in contact with the panel. Strength can be secured by welding and fixing to the beam.

  FIG. 8 is a diagram for explaining a method of fixing the mounting hardware onto the beam by welding. FIG. 8A shows a case where the mounting fixture 3 having the screw holes 7 on the upper surface shown in FIG. 2 is fixed by welding. FIG. 8B shows the holes 8 shown in FIG. The case where the attachment hardware 31 is fixed by welding is shown. In any case, it is effective that the back surface of the mounting hardware is brought into contact with the small edge surface of the ALC panel and the lower end of the mounting hardware is wound in the orthogonal direction to perform welding. In the figure, 18 is a welding beat.

When the mounting fixtures 3-1, 3-1... Are fixed by welding, the next ALC panels 2-2, 2-2,. After that, in the same manner as described above, the mounting hardware 3-2, 3-2... Is placed on the beam 1 while being brought into contact with the short edge of the ALC panel 2-2, 2-2. The lower part of the three side surfaces where the mounting hardware is not in contact with the panel is welded and fixed to the beam.
Repeat the above operation to lay out the necessary ALC panels , screw bolts 5 to the respective mounting hardware welded and fixed to the beam 1 through the washers 4 , and sequentially hold the ALC panels between the beams and the washers. Install ALC panel.

Mounting structure for ALC panels of the present invention, in welding fixing the mounting hardware as described above, since the one side lower portion of the mounting hardware from structure for entrainment welded in an orthogonal direction, the hardware after elaborate laid ALC panels It is possible to fix by welding, so the welding work is carried out on the ALC panel laid on the beam, so there is no need for scaffolding, and it has a specific shape structure in addition to the effect of reducing the danger of working at high places By adopting the mounting member, positioning of the welding position on the beam, adjustment of the orientation and posture, etc. can be performed easily and quickly, and the work efficiency of the welding work can be significantly improved. Therefore, the panel mounting structure of the present invention is extremely useful particularly in applications such as roof panels and floor panels.

DESCRIPTION OF SYMBOLS 1 Beam 2 ALC panel 3 Attachment metal 4 Washer 5 Bolt 6 Flat steel piece 7 Screw hole 8, 27 hole 10 Mounting structure 17 Joint part 18 Welding beat 20 Flat steel piece 21 Round bar steel 22 Projection piece 24 Slab plate 25 Joint reinforcement 28 Round Can 31, 32, 33, 34 Mounting hardware

Claims (1)

In a lightweight cellular concrete panel mounting structure in which lightweight cellular concrete panels are laid horizontally on a beam and the lightweight cellular concrete panel is fixed to the beam via an installation hardware fixed to the beam of the building frame, as the mounting hardware, A thick mounting hardware having a rectangular cross section made of a flat steel plate having a flat bottom portion that can be stably placed in a self-standing state on the beam and having a screw hole on the upper surface is used. The structure was such that the lightweight cellular concrete panel was sandwiched between the beam and the washer by welding and fixing onto the beam so that the axial direction of the tube was vertical, and bolts were screwed onto the mounting hardware via a washer. A lightweight cellular concrete panel mounting structure.

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