JP2019019533A - Mounting hardware for autoclaved light weight concrete panels - Google Patents

Abstract

To prevent damages on ALC panels occurring due to interference with mounting hardware when locking mechanism is found on vertical wall panels composed of ALC panels.SOLUTION: A mounting hardware 1 includes a self-weight receiving plate 11 and a back plate 12. The self-weight receiving plate 11 has a panel placement plate 111, and upward anchors 112 and 113. A hang-locking part 113 is formed on the tip of the upward anchor 112. In the mounting hardware 1, the self-weight receiving plate 11 and the back plate 12 are joined in a swingable way via the formation of a joining slit 121 which is a longitudinal through hole formed by being surrounded by a lower side 123 which is an upwardly convex arc, both side sides 124 which are outwardly convex arcs and whose intervals gradually increase from the lower side 123 to the upper side 122 and a linear upper side 122 on the back plate 12.SELECTED DRAWING: Figure 5

Description

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

  An ALC panel excellent in characteristics such as lightness, heat resistance, and fire resistance is generally formed in a plate shape having a rectangular panel surface. In the case where such an ALC panel is disposed adjacent to the upper and lower sides with the longitudinal direction thereof set in the vertical direction, the weight receiving plate on which the upper panel is placed, the upper side and the lower side are placed. It is common to use a construction method using a mounting hardware provided with a back plate having bolt holes at the upper and lower ends for fastening the panel (see Patent Document 1).

  Here, the wall body composed of ALC panels stacked vertically as described above allows the stress generated in the panel mounting part due to the interlayer displacement occurring on each floor of the building when an external force of a certain level or more is applied due to an earthquake or the like. There was a risk of exceeding the degree of stress and causing the ALC panel to drop off or to be locally destroyed. In order to avoid this, in such an ALC wall body, a locking mechanism that ensures 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. Yes.

  The mounting structure of the ALC panel to give 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, is not filled with mortar in the joint between the upper and lower panels In addition, the metal fittings embedded in the upper and lower parts of the panel in the center of the panel width direction and the anchor metal fittings (8 in FIG. 3) can be slightly rotated by pin support using pin fixing bolts (7 in FIG. 3) or the like. A fixing structure is widely adopted (see Patent Document 2). According to such an ALC panel mounting structure, the ALC panel is attached to the building frame such as an H-shaped steel beam at only two points in the center in the width direction of the upper part and the lower part. Unlike the case of mounting at 4 points on both sides in the width direction of the ALC panel, even if the H-shaped steel beam or the like is displaced laterally during the earthquake and the structure on the frame side is deformed, the ALC panel follows the deformation, and the above-mentioned It is possible to avoid the dropout and local destruction of the ALC panel.

JP 2014-15737 A JP 11-256737 A

  Here, in the conventional ALC panel mounting structure as disclosed in Patent Document 2, the weight receiving plate on which the ALC panel is placed is welded or bolted through a base steel material or the like, It is firmly fixed to the building frame (1C, 1D in FIG. 6). When a locking mechanism is developed in such a mounting structure (20 in FIG. 6), the ALC panel is supported by its own weight receiving plate in a small amount in the in-plane direction around the pin support points at the top and bottom of the panel. Rotate. At this time, interference occurs between the lower end of the ALC panel and the weight receiving plate. When this kind of interference occurs, the contact between the weight receiving plate and the ALC panel (P1, P2 in FIG. 6) behaves such that a part of the weight receiving plate sinks into the end of the ALC panel. A large load is applied (see FIG. 6). In addition, even when the weight receiving plate is not sunk into the ALC panel, the ALC panel is lifted up, causing interference with the upper metal part, and a similar 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 allowable range and local damage of the ALC panel may be caused.

  An object of the present invention is to prevent damage to an ALC panel that occurs due to interference with an attachment hardware when a locking mechanism is developed in a vertical wall panel constituted by an ALC panel.

  The inventors of the present invention can solve the above-mentioned problem by an attachment hardware having a structure in which the weight receiving plate is pivotably joined to the back plate in a manner that the weight receiving plate is hooked to a joining slit having a unique form. The headline and the present invention were completed. Specifically, the present invention provides the following.

  (1) A mounting hardware for a lightweight cellular concrete panel, comprising a self-weight receiving plate and a back plate, wherein the self-weight receiving plate comprises a panel placing plate and an anchor part, The anchor portion is composed of an upward anchor extending from the center of the side edge of the panel mounting plate and two downward anchors extending from the vicinity of both ends of the side edge, at the tip of the upward anchor. A hook portion formed by folding the tip of the upward anchor is formed, and the back plate includes an upper panel mounting surface, a lower panel mounting surface, the upper panel mounting surface, and the lower panel. The building frame side fixing surface is connected to the mounting surface, and the building frame side fixing surface is the 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 formed with through-holes for pinning on a center line passing through the center in the horizontal direction. The building housing side fixed surface is formed with a joining slit, and the joining slit is a lower side that is an upwardly convex arc, and both are outwardly convex arcs from the lower side to the upper side. A laterally long through hole surrounded by both side edges where the distance between them gradually increases toward the upper side and a straight upper side, and the upward anchor is hooked to the joining slit by the hook portion. In the aspect, a mounting hardware in which the weight receiving plate and the back plate are joined so as to be swingable.

  In the invention of (1), it is possible for the mounting hardware that has been conventionally fixed to the building frame to oscillate by following the slight rotation of the ALC panel only when the weight receiving plate exhibits the locking performance. The configuration. According to this, when the locking mechanism appears in the vertical wall panel constituted by 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 cellular concrete panel is placed vertically on the weight receiving plate of the mounting hardware described in (1), and the lightweight cellular 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 cellular concrete panel by a pin member passing through the through hole and a pin member passing through the through hole formed in the upper panel mounting surface Lightweight cellular concrete panel mounting structure 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 constituted by the ALC panel It can be significantly reduced. Thereby, it can contribute to the improvement of the quality which concerns on the seismic isolation of the said wall body.

  (3) A mounting hardware assembly kit for lightweight cellular concrete panel, comprising a self-weight receiving plate and a back plate, wherein 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 of the panel mounting plate and two downward anchors extending from the vicinity of both ends of the side, and the tip of the upward anchor The upper plate has a hook portion formed by folding the tip of the upward anchor, and the back plate includes an upper panel mounting surface, a lower panel mounting surface, the upper panel mounting surface, and the lower side. The building frame side fixing surface located between the panel mounting surface and the building frame side fixing surface is connected, and the building frame side fixing surface is connected to 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 bulge in the direction of the back surface with respect to the surface of the surface, and through holes for pinning are provided on the center line passing through the center in the horizontal direction. Formed on the building housing side fixed surface, the joining slit is formed, the joining slit is an upward convex arc, both are outward convex arcs An attachment hardware assembling kit, which is a horizontally long through hole surrounded by both side edges where the mutual distance gradually increases from the lower side toward the upper side and the linear upper side.

  According to the invention of (3), both the metal fittings corresponding to the hardware for mounting the locking mechanism and the mounting hardware in the conventional ALC panel mounting structure are connected to each other by joining the anchor portion and the joining slit having a unique shape. The assembly kit was assembled and used with a swingable structure. Even with this assembly kit, the effect of the invention of (1) or (2) can be enjoyed, and by using this, the effect of the invention of the following (4) can also be enjoyed together. it can.

  (4) A method for forming a lightweight cellular concrete panel wall using the mounting hardware assembly kit according to (3) and a lightweight cellular concrete panel, wherein the mounting hardware assembly is assembled by integrating the mounting hardware assembly kit. And a step of placing the lightweight cellular concrete panel on the mounting hardware, both at a construction site of a building where the lightweight cellular concrete panel wall 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), for example, compared to the factory assembly product, 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 hardware that has a defect is possible. In addition, a more advantageous effect can be enjoyed.

  According to the present invention, when a locking mechanism appears in a vertical wall panel constituted by ALC panels, a lightweight cellular concrete panel that can prevent the ALC panel from being damaged due to interference with the mounting hardware. Mounting hardware can be provided to contribute to improving the quality of the ALC panel wall provided with the locking mechanism.

It is a perspective view of the attachment hardware of the present invention. It is a perspective view of each hardware of the mounting hardware assembly kit which consists of the metal fitting which comprises the mounting hardware of this invention. It is a side view of the attachment structure of the lightweight cellular concrete panel using the attachment metal fitting of this invention. It is a disassembled perspective view of a wall provided with the attachment structure of the lightweight cellular concrete panel using the attachment metal fitting of this invention. It is a front view with which it uses for description of the joining structure of the dead weight receiving plate and back plate in the attachment hardware of this invention, and the locking mechanism of an attachment hardware. It is a front view with which it uses for description of the aspect of interference with the ALC panel at the time of the rocking performance expression in the conventional attachment structure, and an attachment metal fitting.

  Hereinafter, a wall body (hereinafter, also simply referred to as “wall body”) configured by applying a lightweight cellular concrete panel mounting structure using the mounting hardware of the present invention, a lightweight cellular concrete panel mounting structure of the present invention ( Hereinafter, preferred embodiments of 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 a wall body 100 configured by applying a lightweight cellular concrete panel mounting structure using the mounting hardware of the present invention. The wall body 100 includes a locking mechanism. This locking mechanism is mainly secured by the mounting structure 10. The attachment structure 10 refers to a joint portion formed on a portion where the ALC panel 2 is placed on the attachment hardware 1 and a structure around it.

  In the wall body 100, a plurality of rectangular ALC panels 2 are vertically stacked. The weight of the ALC panel 2 is supported by the mounting hardware 1 installed for each 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 effectively supports the weight of the ALC panel 2 by being disposed at a position corresponding to the center in the width direction on the lower edge of the ALC panel 2.

<Mounting structure>
In an attachment structure 10 that is a joining structure of the attachment hardware 1 and the ALC panel 2, the ALC panel 2 is placed on the weight receiving plate 11 of the attachment hardware 1. The back plate 12 is formed with a joining slit 121 having a shape unique to the present invention. The self-weight receiving plate 11 is joined to the joining slit 121 so as to be “swingable” as described below, so that the mounting structure 10 breaks the ALC panel when the locking performance as described above is exhibited. Can be prevented.

<Mounting hardware>
As shown in FIGS. 3 and 5, the mounting hardware 1 is configured by joining a self-weight receiving plate 11 and a back plate 12 so as to be swingable. In the present specification, “swingable” means that when the wall body 100 is constituted by the mounting structure 10 including the mounting hardware 1, the weight receiving plate 11 of the mounting hardware 1 is a wall against the back plate 12. The rocking performance of the body 100 follows the slight rotation of the ALC panel 2 within the range necessary to develop the performance of releasing the stress caused by the external force due to the slight rotation of the ALC panel 2 as described above. It is possible to move.

  The self-weight receiving plate 11 has a comb-like shape as shown in FIG. 1 or a rectangular shape or the like, and in any case, a panel placement plate 111 having a shape capable of supporting the end edge of the ALC panel, and a panel placement And an anchor portion extending from the side of the plate 111. The self-weight receiving plate 11 including each of these parts is formed, for example, as one including the above-described parts by bending a single metal plate punched into a predetermined shape at a predetermined position. Can do.

  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 the panel mounting plate. 111 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 111. At the tip of the upward anchor 112, a hooking portion 113 is formed by bending a part thereof vertically downward.

  As shown in FIG. 1, in the attachment hardware 1, the upward anchor 112 is hooked to a joining slit 121 formed in the back plate 12 by a hooking portion 113. The downward anchor 114 maintains the stability of the horizontal arrangement in the normal state of the self-weight receiving plate 11 in such a manner that the surface thereof is in contact with the front surface of the back plate 12. All of these stability values are maintained within a range that does not impede the expression of the 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 latching portion 113. .

  The back plate 12 is a substantially rectangular metal member in which a joining 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 formed by connecting the housing-side fixing surface 12b. The upper panel mounting surface 12a, the building housing side fixing surface 12b, and the lower panel mounting surface 12c are parallel to each other, and the building housing side fixing surface 12b includes the upper panel mounting surface 12a and the lower panel mounting surface. The back plate 12 is bent at the connecting portion of each part so as to bulge in the direction of the back side with respect to the surface of 12c and so that these three surfaces are parallel to each other. Since each surface constituting the back plate 12 is formed in this manner, each anchor of the self-weight receiving plate 11 is placed in a gap portion between the building housing side fixing surface 12b and the ALC panel 2 as shown in FIG. The stability of the mounting structure 10 can be increased by storing the thickness of the portion.

  A through hole for pinning is formed in the upper panel mounting surface 12a on a 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 an upper pinning slit 125 formed by cutting out from the upper side of the back plate 12. This is because when the upper ALC panel 2 is placed, the anchor fitting 8 and the pin fixing bolt 7 can be placed in a state of being attached to the ALC panel 2 in advance, which can contribute to improvement in workability.

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

  The joining slit 121 is formed in a shape that allows the weight receiving plate 11 to be pivotably joined to the building housing side fixing surface 12 b of the back plate 12. The joining slit 121 includes a lower side 123 that is an upwardly convex arc, both sides 124 that are outwardly convex arcs and gradually increase from the lower side toward the upper side 122, and a linear upper side. 122 is a horizontally long through hole. It is preferable that a part of the upper side 122 of the joining slit 121 and a part near the upper side 122 of both side sides 124 is formed so as to protrude into the upper panel mounting surface 12a. Further, the horizontally long joining slit 121 is formed in parallel to the line of intersection of the self-weight receiving plate 11 and the back plate 12. Specifically, the arrangement of the joining 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 vertical center line thereof is orthogonal to the line of intersection. is there.

  In the mounting hardware 1, the weight receiving plate 11 is normally arranged so as to be in parallel with the horizontal plane so as to be in contact with the top of the arc of the lower side 123 of the joining slit 121. In an emergency where an external force such as an earthquake is applied to the wall body 100, as shown in FIG. 5, the self-weight receiving plate 11 swings following the slight rotation in the horizontal direction of the ALC panel due to the development of the locking performance. To do.

  Here, the ALC panel structure design guideline and explanation (ALC Association) stated that “ALC panel has its mounting part movable, and it has cracks that fall off the interlayer deformation angle 1/150 of the structural frame and have trouble in mounting strength. It is attached to the support structure member so that it does not occur. ”However, when the interlayer deformation angle of 1/150 is converted into the angle of the inclination angle θ in the shape of the upwardly convex arc of the lower side 123 of the joining slit 121, it is 0. .38 °. As described above, in order to ensure proper locking performance in the ALC panel mounting structure 10, the shape of the upwardly projecting arc of the lower side 123 of the joint slit 121 is ensured to have an inclination angle θ of 0.382 ° or more. To design. Further, the upper limit of the inclination angle θ is about 12 °.

  Further, if both side sides 124 of the joining slit have an outwardly convex arc shape, the end of the anchor (upward anchor 112) extending from the panel mounting plate 111 is located outside the joining slit 121. Since it can move along the side 124 of the joint slit convex in the direction, the displacement width of the installation position when the anchor (upward anchor 112) is inserted into the joint slit 121 and the panel placing plate 111 is installed is minimized. Can be Moreover, the movement of the anchor at the time of the rocking performance is made smooth, unnecessary interference with the inner edge of the joining slit 121 is avoided, and the damage of the ALC panel 2 due to the impact of these collisions is higher. Can be prevented with accuracy.

In the mounting structure 10 using the mounting hardware 1 having the above-described shape, when the locking performance is exerted, 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 as shown in FIG. 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 accompanying the rotation of the ALC panel, rotates in the opposite directions, and at the same time, while the minute in the opposite directions. Slide. With the rotation and micro-slide mechanism provided in the mounting hardware 1, the mounting structure 10 can prevent the ALC panel from being damaged when the locking performance as described above is exhibited.
<Mounting hardware assembly kit>
The mounting hardware 1 of the present invention is preferably used as a mounting hardware assembly kit in which the weight receiving plate 11 and the back plate 12 are combined in a separated state before being integrated. Can do.

  For example, the mounting hardware 1 shown in FIG. 1 can be used in the state of being integrated in this manner and carried into the construction site of the wall body 100, but the parts before integration as shown in FIG. A step of bringing the hardware assembly kit as a combination into the construction site, integrating the mounting hardware assembly kit and assembling the mounting hardware 1, and a step of placing the ALC panel 2 on the mounting hardware 1 thus assembled The wall body 100 can also be formed by performing both at the site where the wall body 100 is installed.

DESCRIPTION OF SYMBOLS 1 Mounting hardware 11 Self-weight receiving plate 111 Panel mounting plate 112 Upward anchor 113 Hanging part 114 Downward anchor 12 Back plate 12a Upper stage panel mounting surface 12b Building housing side fixed surface 12c Lower stage panel mounting surface 121 Joint slit 122 Joint Upper side of slit 123 Lower side of joint slit 124 Both sides of joint slit 125 Upper pin fixing slit 126 Lower pin fixing through hole 2 Lightweight cellular concrete panel 3 Base steel material 4 Building frame 7 Fixing bolt 8 Anchor metal fitting 10 Lightweight air bubble Concrete panel mounting structure 100 Lightweight cellular concrete panel wall

Claims (4)

Mounting hardware for lightweight cellular concrete panels,
A weight receiving plate and a back plate,
The self-weight receiving plate includes a panel placing plate and an anchor portion,
The anchor portion is composed of an upward anchor extending from the center of the side of the panel mounting plate, and two downward anchors extending from the vicinity of both ends of the side,
A hooking portion formed by folding the tip of the upward anchor is formed at the tip of the upward anchor,
The back plate is formed by connecting an upper panel mounting surface, a lower panel mounting surface, and a building frame 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 in the direction of the back side with respect to the surfaces of the upper panel mounting surface and the lower panel mounting surface,
A through hole for pinning is formed on a center line passing through the center in the horizontal direction on the upper panel mounting surface and the lower panel mounting surface.
The building housing side fixed surface is formed with a slit for joining,
The joining slit includes a lower side that is an upwardly convex arc, both sides that are outwardly convex arcs and gradually increase in distance from the lower side to the upper side, and a linear upper side. A horizontally long through-hole,
A mounting hardware in which the self-weight receiving plate and the back plate are joined so as to be swingable in a manner in which the upward anchor is hooked to the joining slit by the hooking portion. A lightweight cellular concrete panel is placed vertically on the weight receiving plate of the mounting hardware according to claim 1,
The lightweight cellular concrete panel includes a pin member that passes through a through hole formed in the lower panel mounting surface and a pin member that passes through a through hole formed in the upper panel mounting surface. A lightweight cellular concrete panel mounting structure joined to a back plate of each of the mounting hardware arranged above and below the lightweight cellular concrete panel. A mounting hardware assembly kit for lightweight cellular concrete panels,
A weight receiving plate and a back plate,
The self-weight receiving plate includes a panel placing plate and an anchor portion,
The anchor portion is composed of an upward anchor extending from the center of the side of the panel mounting plate, and two downward anchors extending from the vicinity of both ends of the side,
A hooking portion formed by folding the tip of the upward anchor is formed at the tip of the upward anchor,
The back plate is formed by connecting an upper panel mounting surface, a lower panel mounting surface, and a building frame 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 in the direction of the back side with respect to the surfaces of the upper panel mounting surface and the lower panel mounting surface,
A through hole for pinning is formed on a center line passing through the center in the horizontal direction on the upper panel mounting surface and the lower panel mounting surface.
The building housing side fixed surface is formed with a slit for joining,
The joining slit includes a lower side that is an upwardly convex arc, both sides that are outwardly convex arcs and gradually increase in distance from the lower side to the upper side, and a linear upper side. A mounting hardware assembly kit that is a horizontally long through-hole. A method for forming a lightweight cellular concrete panel wall using the mounting hardware assembly kit according to claim 3 and a lightweight cellular concrete panel,
Assembling the mounting hardware by integrating the mounting hardware assembly kit;
Placing the lightweight cellular concrete panel on the mounting hardware;
Either of these is a method for forming a lightweight cellular concrete panel wall performed at a construction site of a building where the lightweight cellular concrete panel wall is installed.

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