JP6867081B2 - Mounting hardware for lightweight cellular concrete panels - Google Patents

Description

The present invention relates to mounting hardware for lightweight cellular concrete panels (ALC panels). More specifically, the present invention relates to a mounting hardware capable of imparting an appropriate rocking mechanism to a wall body in which ALC panels are arranged adjacent to each other in the vertical direction, and a mounting structure for a lightweight cellular concrete panel using the same.

ALC panels having excellent properties such as light weight, heat resistance, and fire resistance are generally formed in a plate shape having a rectangular panel surface. When such ALC panels are arranged vertically adjacent to each other with their longitudinal directions facing the vertical direction, a self-weight receiving plate on which the upper panel is placed and the upper and lower panels are placed. Generally, a construction method using a mounting hardware including a back plate having bolt holes at the upper and lower ends for fastening the panel is used (see Patent Document 1).

Here, as described above, the wall body composed of vertically stacked ALC panels allows stress generated in the panel mounting portion due to the interlayer displacement that occurs on each floor of the building when an external force exceeding a certain level is applied due to an earthquake or the like. There was a risk that the stress level would be exceeded and the ALC panel would fall off or be locally destroyed. In order to avoid this, in such an ALC wall body, a locking mechanism that secures the necessary seismic isolation by releasing the above stress by a slight rotation of the ALC panel in the wall surface direction is widely adopted. There is.

As a mounting structure of the ALC panel for imparting a locking mechanism to the wall body composed of vertically stacked ALC panels, that is, the ALC wall body by the vertical wall construction method, the joint portion between the upper and lower panels is not filled with mortar. In addition, the metal fittings and anchor metal fittings (8 in Fig. 3) embedded in the upper and lower parts of the panel in the center in the width direction of the panel can be slightly rotated by pin support with pin fixing bolts (7 in Fig. 3). A fixing structure is widely adopted (see Patent Document 2). According to such an ALC panel mounting structure, the ALC panel is mounted on a building frame such as an H-shaped steel beam only at two points, the upper part and the lower part in the width direction, so that the upper part and the lower part are attached. Unlike the case of mounting at four points on both sides in the width direction of, even if the H-shaped steel beam or the like is displaced laterally and the structure on the skeleton side is deformed in the event of an earthquake, the ALC panel follows the deformation and described above. It is possible to prevent the ALC panel from falling off or being locally destroyed.

Japanese Unexamined Patent Publication No. 2014-15737 Japanese Unexamined Patent Publication No. 11-256737

Here, in the conventional ALC panel mounting structure as disclosed in Patent Document 2, the self-weight receiving plate on which the ALC panel is mounted is welded or bolted via a base steel material or the like. It is firmly fixed to the building frame (1C, 1D in FIG. 6). When the locking mechanism is manifested in such a mounting structure (20 in FIG. 6), the ALC panel remains supported by its own weight receiving plate and is minute in the in-plane direction centered on the pin support points at the top and bottom of the panel. Rotate. Then, at this time, interference occurs between the lower end of the ALC panel and the self-weight receiving plate. When such interference occurs, at the contact points between the self-weight receiving plate and the ALC panel (P1 and P2 in FIG. 6), a part of the self-weight receiving plate behaves as if it is sunk into the end of the ALC panel, and the ALC panel becomes squeezed. A large load will be applied (see FIG. 6). Further, even when the self-weight receiving plate does not sink into the ALC panel, the ALC panel shows a floating behavior, and interference with the hardware on the upper side may occur and the same load may be applied to the ALC panel (FIG. 6). reference). In any of these cases, there is a problem that the load exceeds the permissible range and local damage of the ALC panel may be caused.

An object of the present invention is to prevent damage to the ALC panel caused by interference with the mounting hardware when the locking mechanism is manifested in the vertical wall panel composed of the ALC panel.

The present inventors have determined that the above problems can be solved by a mounting hardware having a structure in which the self-weight receiving plate is swingably joined to the back plate in a manner of being hooked on a joint slit having a unique form. The heading has led to the completion of the present invention. Specifically, the present invention provides the following.

(1) A mounting hardware for a lightweight cellular concrete panel, which includes a self-weight receiving plate and a back plate, and the self-weight receiving plate includes a panel mounting plate and an anchor portion. The anchor portion is composed of an upward anchor extending from the center of the side side of the panel mounting plate and two downward anchors extending from the vicinity of both ends of the side side, respectively, and is attached to the tip of the upward anchor. Is formed with a hook portion in which the tip of the upward anchor is folded back, and the back plate has an upper panel mounting surface, a lower panel mounting surface, an upper panel mounting surface, and the lower panel. The building skeleton side fixed surface located between the mounting surface is connected to the building skeleton side fixed surface, and the building skeleton side fixed surface bulges toward the back surface side with respect to the surfaces of the upper panel mounting surface and the lower panel mounting surface. The upper panel mounting surface and the lower panel mounting surface are formed with through holes for pinning on the center line passing through the center in the horizontal direction, and are fixed to the building skeleton side. A splicing slit is formed on the surface, and the splicing slit has a lower side which is an upwardly convex arc and an arc which is both outwardly convex and has a mutual distance from the lower side to the upper side. The self-weight receiving plate, which is a horizontally long through hole surrounded by gradually increasing both side sides and a straight upper side, in a manner in which the upward anchor is hooked on the joint slit by the hooking portion. A mounting hardware in which the back plate and the back plate are oscillatingly joined.

In the invention of (1), it is possible to swing the mounting hardware fixed to the building frame in accordance with the minute rotation of the ALC panel only in the portion of the self-weight receiving plate when the locking performance is exhibited. It was configured. According to this, when the rocking mechanism is manifested in the vertical wall panel composed of the ALC panel, it is possible to prevent the ALC panel from being damaged due to the interference with the mounting hardware.

(2) A lightweight bubble concrete panel is vertically placed on the weight receiving plate of the mounting hardware according to (1), and the lightweight bubble concrete panel is formed on the lower panel mounting surface. The back plate of each of the mounting hardware arranged above and below the lightweight bubble concrete panel by the pin member through the through hole and the pin member through the through hole formed on the upper panel mounting surface. Mounting structure of lightweight cellular concrete panels joined to.
According to the invention of (2), by enjoying the effect of the invention of (1), the risk of panel breakage when the locking mechanism is manifested in the vertical wall panel type wall body composed of the ALC panel is increased. It can be significantly reduced. This can contribute to the improvement of the quality related to the seismic isolation of the wall body.

(3) A mounting hardware assembly kit for a lightweight cellular concrete panel, which includes a self-weight receiving plate and a back plate, and the self-weight receiving plate includes a panel mounting plate and an anchor portion. The anchor portion is composed of an upward anchor extending from the center of the side side of the panel mounting plate and two downward anchors extending from the vicinity of both ends of the side side, respectively, and the tip of the upward anchor portion. A hook portion is formed in which the tip of the upward anchor is folded back, and the back plate has an upper panel mounting surface, a lower panel mounting surface, an upper panel mounting surface, and the lower side. The building skeleton side fixed surface located between the panel mounting surface is connected to the building skeleton side fixed surface, and the building skeleton side fixed surface expands in the back surface side with respect to the front surface of the upper panel mounting surface and the lower panel mounting surface. The upper panel mounting surface and the lower panel mounting surface are bent so as to come out, and through holes for pinning are formed on the center line passing through the center in the horizontal direction, and the building skeleton side. A splicing slit is formed on the fixed surface, and the splicing slit has a lower side that is an upwardly convex arc and an arc that is both outwardly convex and is spaced from the lower side to the upper side. A mounting hardware assembly kit that is a horizontally long through hole surrounded by both sides that gradually increase and a straight upper side.

According to the invention of (3), both metal fittings corresponding to the metal fitting for the rocking mechanism configuration and the mounting metal fitting in the conventional ALC panel mounting structure are joined by joining the anchor portion and the joint slit having a unique shape. It is an assembly kit that can be assembled and integrated with a swingable structure. With this assembly kit, the effects of the invention of (1) or (2) can be enjoyed, and by using this, the effects of the invention of the following (4) can also be enjoyed. it can.

(4) A method for forming a lightweight bubble concrete panel wall body using the mounting hardware assembly kit according to (3) and the lightweight bubble concrete panel, which is a step of assembling the mounting hardware by integrating the mounting hardware assembly kit. A method for forming a lightweight aerated concrete panel wall body, wherein the steps of placing the lightweight aerated concrete panel on the mounting hardware are performed at a construction site of a building in which the lightweight aerated concrete panel wall body is installed.

According to the invention of (4), by adopting a construction method in which the mounting hardware is assembled at the construction site using the assembly kit described in (3), the mounting hardware is compared with the factory-assembled product, for example, to the self-weight receiving metal fitting. The final integration of the panel mounting bracket can be flexibly performed at any process stage according to the situation at the site, and the partial replacement of some defective hardware is possible. In, a more advantageous effect can be enjoyed.

According to the present invention, when a locking mechanism is manifested in a vertical wall panel composed of an ALC panel, a lightweight cellular concrete panel capable of preventing damage to the ALC panel caused by interference with mounting hardware can be prevented. It is possible to provide mounting hardware for the purpose of contributing to the improvement of the quality of the ALC panel wall body provided with the locking mechanism.

It is a perspective view of the mounting hardware of this invention. It is a perspective view of each hardware of the mounting hardware assembly kit which consists of the metal fittings constituting the mounting hardware of this invention. It is a side view of the mounting structure of the lightweight cellular concrete panel using the mounting hardware of the present invention. It is an exploded perspective view of the wall body provided with the mounting structure of the lightweight cellular concrete panel using the mounting hardware of the present invention. It is a front view provided for the description of the joint structure of the self-weight receiving plate and the back plate in the mounting hardware of the present invention, and the locking mechanism of the mounting hardware. It is a front view which provides the mode of the interference between the ALC panel and the mounting metal fitting at the time of exhibiting the locking performance in the conventional mounting structure.

Hereinafter, a wall body (hereinafter, also simply referred to as “wall body”) configured by applying the mounting structure of the lightweight bubble concrete panel using the mounting hardware of the present invention, the mounting structure of the lightweight bubble concrete panel of the present invention (hereinafter, also simply referred to as “wall body”) Hereinafter, preferred embodiments of the mounting hardware (hereinafter, also simply referred to as “mounting structure”) and the mounting hardware for the lightweight cellular concrete panel of the present invention (hereinafter, also simply referred to as “mounting hardware”) will be described.

<Wall body>
FIG. 4 is an elevational view of the wall body 100 constructed by applying the mounting structure of the lightweight cellular concrete panel using the mounting hardware of the present invention. The wall body 100 includes a locking mechanism. This rocking mechanism is secured mainly by the mounting structure 10. The mounting structure 10 refers to a structure formed at a portion where the ALC panel 2 is mounted on the mounting hardware 1 and a joint portion between the two and its surroundings.

In the wall body 100, a plurality of rectangular ALC panels 2 are vertically stacked vertically. The weight of the ALC panel 2 is supported by the mounting hardware 1 installed for each individual ALC panel 2 constituting the wall body 100. The mounting hardware 1 is fixed to the building frame 4 via a base steel material 3 such as an L-shaped angle. The mounting hardware 1 is arranged at a position corresponding to the center in the width direction on the lower edge surface of the ALC panel 2, thereby effectively supporting the weight of the ALC panel 2.

<Mounting structure>
In the mounting structure 10, which is a joint structure between the mounting hardware 1 and the ALC panel 2, the ALC panel 2 is placed on the self-weight receiving plate 11 of the mounting hardware 1. The back plate 12 is formed with a joint slit 121 having a shape unique to the present invention. Since the self-weight receiving plate 11 is spliced to the splicing slit 121 in a "swingable" manner as described below, in the mounting structure 10, the ALC panel is damaged when the locking performance is exhibited as described above. Can be prevented.

<Mounting hardware>
As shown in FIGS. 3 and 5, the mounting hardware 1 is configured by connecting the self-weight receiving plate 11 and the back plate 12 so as to be swingable. In the present specification, "swingable" means that when the wall body 100 is configured by the mounting structure 10 including the mounting hardware 1, the weight receiving plate 11 of the mounting hardware 1 is a wall with respect to the back plate 12. The locking performance of the body 100, that is, as described above, sways following the minute rotation of the ALC panel 2 to the extent necessary to exhibit the performance of releasing the stress generated by the external force due to the minute rotation of the ALC panel 2. It means that it is possible to move.

The self-weight receiving plate 11 is a panel mounting plate 111 having a shape that can support the edge edge surface of the ALC panel, such as a comb shape or a rectangular shape as shown in FIG. 1, and a panel mounting. It is a metal member including an anchor portion extending from a side surface of the plate 111. The self-weight receiving plate 11 including each of these parts is formed so as to include each of the above parts by, for example, bending a single metal plate punched into a predetermined shape at a predetermined position. Can be done.

The anchor portion includes an upward anchor 112 extending vertically upward (opposite to the extending direction of the downward anchor 114) from the center of one side of the panel mounting plate 111 constituting the self-weight receiving plate 11, and a panel mounting plate. It is composed of a downward anchor 114 extending vertically downward (opposite to the extending direction of the upward anchor 112) from the vicinity of both ends of one side of the 111. At the tip of the upward anchor 112, a hook portion 113 is formed which is partially bent vertically downward.

As shown in FIG. 1, in the mounting hardware 1, the upward anchor 112 is hooked by the hooking portion 113 to the joint slit 121 formed in the back plate 12. The downward anchor 114 maintains the stability of the horizontal arrangement of the self-weight receiving plate 11 in normal times in such a manner that the surface thereof contacts the front surface of the back plate 12. All of these stability are maintained within a range that does not hinder the development of locking performance in an emergency.

The mounting hardware 1 can adjust the vertical position of the panel mounting plate 111 constituting the self-weight receiving plate 11 to an arbitrary position by adjusting the length of the portion of the upward anchor 112 up to the hooking portion 113. ..

The back plate 12 is a substantially rectangular metal member in which a joint slit 121 for joining the self-weight receiving plate 11 is formed.

As shown in FIGS. 1 and 2, the back plate 12 is a building located between the upper panel mounting surface 12a, the lower panel mounting surface 12c, and the upper panel mounting surface 12a and the lower panel mounting surface 12c. It is a substantially rectangular plate-shaped metal member that is connected to the skeleton-side fixed surface 12b. The upper panel mounting surface 12a, the building skeleton side fixing surface 12b, and the lower panel mounting surface 12c are parallel to each other, and the building skeleton side fixing surface 12b is the upper panel mounting surface 12a and the lower panel mounting surface. The back plate 12 is bent and formed at the connecting portion of each portion so as to bulge toward the back surface side with respect to the front surface of the 12c and so that these three surfaces are parallel to each other. Since each surface constituting the back plate 12 is formed in this way, as shown in FIG. 3, each anchor of the self-weight receiving plate 11 is provided in the gap portion between the fixed surface 12b on the building frame side and the ALC panel 2. The thickness of the portion can be stored to improve the stability of the mounting structure 10.

On the upper panel mounting surface 12a, a through hole for pinning is formed on the center line passing through the center in the horizontal direction within the same surface. As shown in FIGS. 1 and 2, the through hole is more preferably an upper pinning slit 125 formed by notching from the upper side of the back plate 12. This is because when the upper ALC panel 2 is mounted, the anchor metal fitting 8 and the pin fixing bolt 7 can be mounted in a state of being attached to the ALC panel 2 in advance, which can contribute to the improvement of workability.

On the lower panel mounting surface 12c, a lower pinning through hole 126 is formed on the center line passing through the center in the horizontal direction in the same surface. As shown in FIGS. 1 and 2, the through hole is more preferably a vertically long through hole having a major axis in the vertical direction of the back plate 12. This is because drilling holes in the ALC panel 2 for installing the anchor metal fitting 8 and the pin fixing bolt 7 is often performed at the construction site, and the construction error can be absorbed.

The joint slit 121 is formed in a shape capable of swingably joining the self-weight receiving plate 11 to the building frame side fixed surface 12b of the back plate 12. The joint slit 121 has a lower side 123 which is an upwardly convex arc, both side sides 124 which are both outwardly convex arcs and whose distance from the lower side gradually increases from the lower side to the upper side 122, and a linear upper side. It is a horizontally long through hole surrounded by 122 and. It is preferable that the upper side 122 of the joining slit 121 and a part of both side 124 near the upper side 122 are formed so as to penetrate into the upper panel mounting surface 12a. Further, the horizontally long joint slit 121 is formed parallel to the line of intersection between the self-weight receiving plate 11 and the back plate 12. Specifically, the arrangement of the joint slit 121 is such that the upper side 122 thereof is parallel to the line of intersection of the self-weight receiving plate 11 and the back plate 12, and the center line in the vertical direction is orthogonal to the line of intersection. is there.

In the mounting hardware 1, normally, the self-weight receiving plate 11 is arranged so as to be parallel to the horizontal plane so as to contact the apex of the arc of the lower side 123 of the joint slit 121. Then, in an emergency such as an earthquake when an external force is applied to the wall body 100, as shown in FIG. 5, the self-weight receiving plate 11 swings following a minute horizontal rotation of the ALC panel due to the manifestation of locking performance. To do.

Here, according to the ALC Panel Structural Design Guideline and Explanation (ALC Association), "The ALC panel has a movable mounting part, and cracks that fall off and hinder the mounting strength with respect to the interlayer deformation angle of 1/150 of the structural frame. It is attached to the support structural member so that it does not occur. ”However, when this 1/150 interlayer deformation angle is converted to the angle of inclination θ in the shape of an upwardly convex arc on the lower side 123 of the joint slit 121, it is 0. It becomes .38 °. From the above, in order to ensure the proper locking performance in the mounting structure 10 of the ALC panel, the shape of the upwardly convex arc of the lower side 123 of the joint slit 121 is secured so that the angle of inclination θ is 0.382 ° or more. It should be designed so that it is done. The upper limit of the inclination angle θ is about 12 °.

Further, according to the shape of the arc shape in which both sides 124 of the joint slit are convex outward, the end portion of the anchor (upward anchor 112) extending from the panel mounting plate 111 is outside the joint slit 121. Since it can move along the side side 124 of the joint slit that is convex in the direction, the deviation width of the installation position when the anchor (upward anchor 112) is inserted into the joint slit 121 and the panel mounting plate 111 is installed is minimized. Can be transformed into. Further, the movement of the anchor when the locking performance is exhibited is made smooth, unnecessary interference with the inner edge portion of the joint slit 121 is avoided, and the damage of the ALC panel 2 due to the impact of these collisions is higher. It can be prevented with accuracy.

When the locking performance is exhibited in the mounting structure 10 using the mounting hardware 1 having the above shape, as shown in FIG. 5, the weight receiving plate of the mounting hardware 1A on the lower side of the ALC panel 2 and the upper side of the ALC panel 2 The self-weight receiving plate of the mounting hardware 1B completely follows the rotation of the straight line connecting the upper and lower pin support points with the rotation of the ALC panel, and rotates in opposite directions, and at the same time, although it is extremely small in the opposite direction. Slide. Due to the rotation and minute slide mechanism provided in the mounting hardware 1, it is possible to prevent the ALC panel from being damaged when the locking performance is exhibited as described above in the mounting structure 10.
<Mounting hardware assembly kit>
The mounting hardware 1 of the present invention is preferably used as a mounting hardware assembly kit in which the self-weight receiving plate 11 and the back plate 12 are combined as a set in a separated state before being integrated. Can be done.

For example, as the mounting hardware 1 shown in FIG. 1, the one carried into the construction site of the wall body 100 in such an integrated state can be used, but the parts before integration as shown in FIG. 2 can be used. The process of bringing the combined hardware assembly kit to the construction site and integrating the mounting hardware assembly kit to assemble the mounting hardware 1 and the process of mounting the ALC panel 2 on the mounting hardware 1 assembled in this way. The wall body 100 can also be formed by performing both and the above at the installation site of the wall body 100.

1 Mounting hardware 11 Self-weight receiving plate 111 Panel mounting plate 112 Upward anchor 113 Hooking part 114 Downward anchor 12 Back plate 12a Upper panel mounting surface 12b Building skeleton side fixed surface 12c Lower panel mounting surface 121 Slit for joining 122 For joining Upper side of slit 123 Lower side of splicing slit 124 Both sides of splicing slit 125 Upper pinning slit 126 Lower pinning through hole 2 Lightweight bubble concrete panel 3 Base steel material 4 Building frame 7 Fixing bolt 8 Anchor metal fittings 10 Lightweight bubble Concrete panel mounting structure 100 Lightweight aerated concrete panel wall

Claims (4)

Mounting hardware for lightweight cellular concrete panels
Includes a self-weight receiving plate and a back plate,
The self-weight receiving plate includes a panel mounting plate and an anchor portion.
The anchor portion is composed of an upward anchor extending from the center of the side side of the panel mounting plate and two downward anchors extending from the vicinity of both ends of the side side.
A hook portion formed by folding back the tip of the upward anchor is formed at the tip of the upward anchor.
The back plate is formed by connecting the upper panel mounting surface, the lower panel mounting surface, and the building skeleton side fixing surface located between the upper panel mounting surface and the lower panel mounting surface. The building skeleton side fixing surface is bent so as to bulge toward the back surface side with respect to the surfaces of the upper stage side panel mounting surface and the lower stage side panel mounting surface.
On the upper panel mounting surface and the lower panel mounting surface, through holes for pinning are formed on the center line passing through the center in the horizontal direction.
A slit for joining is formed on the fixed surface on the building frame side.
The joint slits are formed into a lower side which is an upwardly convex arc, both sides which are both outwardly convex arcs and whose distance from the lower side gradually increases from the lower side to the upper side, and a straight upper side. It is a horizontally long through hole surrounded by
A mounting hardware in which the self-weight receiving plate and the back plate are oscillatingly joined in a manner in which the upward anchor is hooked on the joint slit by the hooking portion. A lightweight cellular concrete panel is vertically placed on the self-weight receiving plate of the mounting hardware according to claim 1.
The lightweight cellular concrete panel is formed by a pin member through a through hole formed in the lower panel mounting surface and a pin member through the through hole formed in the upper panel mounting surface. A mounting structure for a lightweight cellular concrete panel that is joined to the back plate of each of the mounting hardware arranged above and below the lightweight cellular concrete panel. Mounting hardware assembly kit for lightweight cellular concrete panels
Includes a self-weight receiving plate and a back plate,
The self-weight receiving plate includes a panel mounting plate and an anchor portion.
The anchor portion is composed of an upward anchor extending from the center of the side side of the panel mounting plate and two downward anchors extending from the vicinity of both ends of the side side.
A hook portion formed by folding back the tip of the upward anchor is formed at the tip of the upward anchor.
The back plate is formed by connecting the upper panel mounting surface, the lower panel mounting surface, and the building skeleton side fixing surface located between the upper panel mounting surface and the lower panel mounting surface. The building skeleton side fixing surface is bent so as to bulge toward the back surface side with respect to the surfaces of the upper stage side panel mounting surface and the lower stage side panel mounting surface.
On the upper panel mounting surface and the lower panel mounting surface, through holes for pinning are formed on the center line passing through the center in the horizontal direction.
A slit for joining is formed on the fixed surface on the building frame side.
The joint slits are formed into a lower side which is an upwardly convex arc, both sides which are both outwardly convex arcs and whose distance from the lower side gradually increases from the lower side to the upper side, and a straight upper side. A mounting hardware assembly kit that is a horizontally long through hole that is surrounded. A method for forming a lightweight aerated concrete panel wall using the mounting hardware assembly kit according to claim 3 and a lightweight aerated concrete panel.
The process of assembling the mounting hardware by integrating the mounting hardware assembly kit,
The process of placing the lightweight cellular concrete panel on the mounting hardware,
Both are methods for forming a lightweight aerated concrete panel wall body at a construction site of a building in which the lightweight aerated concrete panel wall body is installed.

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