JP3738866B2 - Lightweight precast concrete plate structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fixing structure for a lightweight precast concrete plate, and more particularly to a fixing structure suitable for fixing an ALC curtain wall to a structural frame of a building when an ALC curtain wall is used as an outer wall material of a building. Is.
[0002]
[Prior art]
Conventionally, a fixing structure as shown in FIG. 6 has been used as a structure for fixing an ALC (steam-cured [autoclaved lightweight concrete)] curtain wall constituting an outer wall of a building to a structural frame.
In the example shown in FIG. 6, a pair of L-shaped angles 12 and 14 are provided on the H-shaped steel beam 10 provided on each floor of the building, and the ALC plate 16 constituting the outer wall of each floor on the L-shaped angles 12 and 14. Is fixed.
Each ALC plate 16 is provided with a pair of mounting brackets (fasteners) 20 and 30 on the upper and lower sides, respectively.
FIG. 7 is a cross-sectional view showing a portion where the upper and lower ALC plates 16A and 16B are fixed to the L-shaped angles 12 and.
As shown in the drawing, the upper fastener 20 of the lower ALC plate 16B has a structure in which a hook bolt 22 that engages with the lower L-shaped angle 14 passes through the ALC plate 16 and is screwed into a nut 24. Is.
Then, the hook portion 22A of the hook bolt 22 is engaged with the tip end portion of the lower L-shaped angle 14, and the ALC plate 16 is fixed.
[0003]
On the other hand, the fastener 30 on the lower side of the upper ALC plate 16A has a structure in which a progress plate 32 that engages with the upper L-shaped angle 12 is attached to the ALC plate 16 with bolts 34 and nuts 36.
Since the fastener 30 on the lower side of the ALC plate 16A receives and supports the weight of the ALC plate 16, it has a stronger structure than the fastener 20 on the upper side.
As shown in FIG. 8, the Inazuma plate 32 has an insertion hole 32 </ b> A for the bolt 34 on the proximal end side and a bent portion 32 </ b> B in the middle.
Then, as shown in FIG. 7, the ALC plate 16 and the L-shaped angle are structured by inserting and sandwiching the distal end portion of the L-shaped angle 12 between the distal end portion of the Inazuma plate 32 and the plate surface of the ALC plate 16. 12 and the ALC plate 16 are supported.
[0004]
In FIG. 7, a receiving plate 18 is fixed to the L-shaped angle 12 by welding, and enters the gap between the upper and lower ALC plates 16A and 16B. The receiving plate 18 receives and fixes the end surface of the upper ALC plate 16A at a predetermined height position.
Further, a sealing member 40A is interposed outside the gap between the upper and lower ALC plates 16A and 16B to prevent water and the like from entering, and a reinforcing bar 40B is interposed inside the sealing member 40A. Is provided with a floor board material 42.
[0005]
[Problems to be solved by the invention]
However, the above-described conventional example has a structure in which the tip of the L-shaped angle 12 is inserted between the surface of the ALC plate 16 and the inazuma plate 32. The tip end of the mold angle 12 is set deeply between the ALC plate 16 and the Inazuma plate 32 or set shallowly, and cannot be set properly, reducing work efficiency.
Accordingly, an object of the present invention is to provide a plate body fixing structure capable of easily and appropriately fixing a plate body to a structural housing.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a fixed structure in which a plurality of lightweight precast concrete plates constituting a wall plate of a structure are arranged vertically and fixed to the structure case, and the structure case is arranged vertically. In addition, a first fixing member having an upward piece protruding upward is provided at a position corresponding to the lower end portion of each plate body, and a downward piece protruding downward is provided at a position corresponding to the upper end portion of each plate body. A second fixing member is provided, and the plate body is attached to the vicinity of the lower end of the plate body and has a first fixing tool having an open downward engaging groove below and engaged with the upward piece. And a second fixture having an open upward engagement groove which is attached to a portion near the upper end of the plate body and engages with the downward piece, and the first fixture is provided on the plate body. A board part to be attached to the board part, A projecting portion projecting from the midway portion toward the structural housing; and an outer plate portion extending downward from a tip of the projecting portion, wherein the downward engaging groove is formed by the substrate portion and the outer plate portion. A spacer plate having the same thickness as that of the substrate portion is disposed on the surface of the plate body facing the structural housing, and the upward engagement groove is engaged with the downward piece and the spacer plate being combined. The first fixing member is composed of an L-shaped angle formed of two pieces orthogonal to each other, one piece is attached horizontally to the structural housing, and the other piece projects upward, The upward piece is constituted by a piece projecting to the top, and the upper portion of the spacer plate is aligned with the lower portion of the upward piece .
[0007]
Further, according to the present invention, the second fixing member is configured by an L-shaped angle formed of two pieces orthogonal to each other, one piece is horizontally attached to the structural housing, and the other piece is downward. is projected, you wherein downward piece by piece portion that protrudes to the downward is constituted.
Further , according to the present invention, the receiving plate is disposed between the lower end surface of the plate body positioned on the upper side and the upper end surface of the plate body positioned on the lower side, and the lower end surface of the plate body positioned on the upper side is on the lower side. The upper end surface of the plate body positioned is received via the receiving plate, and the receiving plate and the spacer plate are integrally formed.
Further, in the present invention, a sealing member is interposed between the lower end surface of the plate body positioned on the upper side and the upper end surface of the plate body positioned on the lower side at a position farther from the structural housing than the receiving plate. It is characterized by being.
Further, according to the present invention, a hook bolt is attached to the vicinity of the upper end of the plate body. The hook bolt protrudes substantially horizontally from the surface of the plate body facing the structure housing to the structure housing side, and the tip of the shaft portion. The upward engaging groove is formed by a surface of the plate body facing the structural housing and the upward leading end portion.
Further, the present invention is characterized in that the plate body is an ALC plate.
[0008]
In the present invention, the upward-facing piece of the structural housing and the downward engaging groove of the plate body are engaged, and the downward-facing piece of the structural housing and the upward engaging groove of the plate body are engaged.
Here, the downward engaging groove is formed by the base plate portion and the outer plate portion of the first fixing member separate from the plate body.
In addition, the spacer plate having the same thickness as the substrate portion is engaged with the upward engagement groove in a state where the spacer plate is aligned with the downward piece, and each plate body is properly positioned on the same surface.
Therefore, the engagement of the downward engagement groove and the upward piece, which is important for receiving the weight of the plate body, can be properly and easily performed in a uniform engagement state regardless of the finishing condition such as the unevenness of the surface of the plate body. It can be done.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment for fixing an ALC curtain wall to a structural frame of a building as a lightweight precast concrete plate will be described.
FIG. 1 is a cross-sectional view showing the fixing structure of the ALC plate in this example, and FIG. 2 is an enlarged cross-sectional view showing the main part of the fixing structure shown in FIG.
In this example, upper and lower ALC plates 116 </ b> A and 116 </ b> B are fixed to a pair of L-shaped angles 112 and 114 provided on the H-shaped steel beam 110 of the structural housing 100. In addition, the floor board material 142 is provided on the H-shaped steel beam 110, and the reinforcing bar 144 is arrange | positioned in the inside.
A fastener 130 serving as a first fixture that engages with the upper L-shaped angle 112 serving as a first fixing member is provided below the upper ALC plate 116A.
In addition, a fastener 120 as a second fixture that engages with the lower L-shaped angle 114 as a second fixing member is provided on the upper portion of the lower ALC plate 116B.
The upper L-shaped angle 112 has a piece attached to the upper surface of the upper flange of the H-shaped steel beam 110 and an upward piece 112A because it is bent from the tip of this piece and protrudes upward. The angle 114 has a piece attached to the lower surface of the upper flange of the H-shaped steel beam 110 and a downward piece 114A because it is bent from the tip of this piece and protrudes downward, and the upward piece 112A and the downward piece 114A are structured. The surfaces facing the outside of the casing 100 are arranged so as to be located on the same vertical plane.
As shown in FIG. 3, a pair of fasteners 120 and 130 are provided on the left and right sides of the ALC plate 116, respectively.
[0010]
The fastener 120 has a structure in which a hook bolt 122 that engages with the lower L-shaped angle 114 passes through the ALC plate 116 and is screwed into a nut 124.
The hook bolt 122 extends horizontally in the ALC plate 116 and protrudes from the surface of the ALC plate 116 on the structural housing 100 side, and an upward tip bent from the tip of the shaft portion 122B and protruding upward. An upward engagement groove 123 is formed by a surface having the portion 122A and the ALC plate 116 facing the structural housing 100 side and the upward leading end portion 122A.
A downward piece 114A of the lower L-shaped angle 114 is engaged with the upward engagement groove 123, and the ALC plate 116 is fixed.
[0011]
The fastener 130 has a structure in which a lightning plate 132 that engages with the upper L-shaped angle 112 is attached to the ALC plate 116 with a bolt 134 and a nut 136.
Since the lower fastener 130 receives and supports the weight of the ALC plate 116, the lower fastener 130 has a stronger structure than the upper fastener 120.
FIG. 4 is a six-sided view showing the Inazuma plate 132. FIG. 4 (1) is a top view, FIG. 4 (2) is a front view, FIG. 4 (3) is a right side view, and FIG. 4 (5) is a rear view, and FIG. 4 (6) is a left side view.
This Inazuma plate 132 is formed in a substantially h shape, and a substrate part 132A mounted on the plate surface of the ALC plate 116, a protrusion part 132E protruding from the upper and lower middle part of the substrate part 132A toward the structural housing 100, and the protrusion And an outer plate portion 132B extending downward from the tip of the portion 132E.
[0012]
The board portion 132A of the Inazuma plate 132 is formed with mounting holes 132C and 132D for bolting.
The substrate portion 132A and the outer plate portion 132B are formed in parallel with each other at an interval corresponding to the thickness of the upward piece 112A of the L-shaped angle 112, and are opened downward downward by the substrate portion 132A and the outer plate portion 132B. An engagement groove 133 is formed.
Therefore, in this Inazuma plate 132, the upward engagement piece 112A of the L-shaped angle 112 is inserted and held in the downward engagement groove 133, and the structure is received by the protruding portion 132E of the base plate portion 132A and the outer plate portion 132B. To obtain a combined state.
[0013]
In addition, a vertical wall plate 118 having an L-shaped cross section as a receiving plate and a spacer plate is interposed between a lower portion of the upper ALC plate 116A and an upper portion of the lower ALC plate 116B. Is used by being placed on the upper part of the lower ALC plate 116B when the ALC plates 116A and 116B are fixed to the structural housing 100.
FIG. 5 is a three-side view showing the vertical wall plate 118, FIG. 5 (1) is a bottom view, FIG. 5 (2) is a front view, and FIG. 5 (3) is a side view.
As shown in the figure, the vertical wall plate 118 is formed by integrally connecting a receiving plate 118A and a spacer plate 118B so as to have an L-shaped cross section.
Similar to the conventional receiving plate 18 described above, the receiving plate 118A enters the gap between the upper and lower ALC plates 116A and 116B, receives the end surface of the upper ALC plate 116A, and supports it at a predetermined height position. It is.
The receiving plate 118A is formed with an insertion hole 118C through which the joint rebar 150 embedded between the upper and lower ALC plates 116A and 116B is inserted.
[0014]
The spacer plate 118B is formed to have a vertical length that extends from the upper and lower intermediate portion of the upward piece 112A of the L-shaped angle 112 to the entire surface of the downward piece 114A of the L-shaped angle 114.
The thickness of the spacer plate 118B is the same as the thickness of the substrate portion 132A of the Inazuma plate 132.
Each ALC plate 116A, 116B is properly positioned on the same surface by the spacer plate 118B.
Further, a sealing member 140A is interposed on the outer side of the receiving plate 118A in the gap between the ALC plates 116A and 116B so as to prevent intrusion of water and the like, and the reinforcing bar 140B is provided on the inner side of the receiving plate 118A. Intervened.
[0015]
Next, when fixing a plurality of ALC plates 116 to the structural housing 100 in the above-described fixing structure, first, fasteners 120 and 130, that is, hook bolts 122 and Inazuma are placed at predetermined positions on the ALC plate 116. The plate 132 is attached.
Next, the receiving plate 118A is placed on the upper end surface of the lower ALC plate 116, and the vertical wall plate 118 is arranged with the spacer plate 118B aligned with the surface where the lower ALC plate 116 faces the structural housing 100.
In this case, the lower ALC plate 116 is fixed to the upper structural housing 100 by being engaged with the upward engagement groove 123 in a state where the spacer plate 118B and the downward piece 114A are overlapped.
Next, the lower plate 132 of the upper ALC plate 116 is attached to the L-shaped angle 112 installed in the structural housing 100. That is, the upward piece 112 </ b> A of the L-shaped angle 112 is inserted into the downward engagement groove 133 of the inazuma plate 132.
Then, similarly to the above, the receiving plate 118A is placed on the upper end surface of the upper ALC plate 116, the spacer plate 118B is aligned with the surface where the ALC plate 116 faces the structural housing 100, and the vertical wall plate 118 is thereby arranged. The spacer plate 118B and the downward piece 114A are overlapped to engage with the upward engagement groove, and the upper portion of the ALC plate 116A is fixed.
Thereafter, by repeating such operations, a plurality of ALC plates 116 are arranged one above the other and are sequentially installed on the structural housing 100.
[0016]
In the present embodiment, the downward engagement groove 133 is formed by the substrate portion 132A and the outer plate portion 132B of the Inazuma plate 132 that is separate from the ALC plate 116, and each ALC plate 116A is formed by the spacer plate 118B. 116B are properly positioned on the same plane.
Therefore, the engagement between the downward engagement groove 133 and the upward piece 112A, which is important for receiving the weight of the ALC plate 16, is maintained in a uniform engagement state regardless of the finish of the surface of the ALC plate 116 such as irregularities. This can be done properly and easily, and this type of work efficiency can be greatly increased.
Further, in the embodiment, since the vertical wall plate 118 in which the receiving plate 118A and the spacer plate 118B are integrated is provided, handling becomes convenient, which is advantageous in performing the fixing operation of the ALC plate 16 more efficiently.
[0017]
In the present invention, the receiving plate 118A and the spacer plate 118B may be separated to obtain the function of the receiving plate and the function of the spacer plate separately.
Moreover, although the case where it applied to the fixing structure of an ALC board was demonstrated in the embodiment, this invention is not limited to this, Other various light weight precast concrete cast board bodies are fixed to a structural housing. Needless to say, the present invention can be applied to a fixing structure.
[0018]
【The invention's effect】
As described above, in the fixing structure of the lightweight precast concrete cast plate according to the present invention, the downward engagement groove with which the upward piece is engaged is formed with the base plate portion of the first fixture separate from the plate. It is formed by an outer plate part, and the spacer plate having the same thickness as the substrate part and the downward piece are engaged with the upward engagement groove so that each plate body is positioned on the same surface. I made it.
Therefore, the engagement of the downward engagement groove and the upward piece, which is important for receiving the weight of the plate body, can be performed properly and easily in a uniform engagement state regardless of the finish of the surface of the plate body, This type of work efficiency can be significantly increased.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an example of an ALC plate fixing structure according to the present invention.
FIG. 2 is an enlarged cross-sectional view showing a main part of the fixing structure shown in FIG.
3 is a three-sided view showing fastener mounting positions of the ALC plate shown in FIG. 1, FIG. 3 (1) is a front view, FIG. 3 (2) is a bottom view, and FIG. 3 (3) is a side view.
4 is a hexahedral view showing an example of the Inazuma plate used in the fixing structure shown in FIG. 1. FIG. 4 (1) is a top view, FIG. 4 (2) is a front view, and FIG. 4 (3) is a right side view. 4 (4) is a bottom view, FIG. 4 (5) is a rear view, and FIG. 4 (6) is a left side view.
5 is a three-side view showing an example of a vertical wall plate used in the fixing structure shown in FIG. 1, FIG. 5 (1) is a bottom view, FIG. 5 (2) is a front view, and FIG. 5 (3) is a side view. It is.
FIG. 6 is a cross-sectional view showing an outline of a conventional ALC plate fixing structure.
7 is an enlarged cross-sectional view showing the main part of the ALC plate fixing structure shown in FIG. 6;
8 is a three-side view showing an example of the Inazuma plate used in the fixing structure shown in FIG. 6. FIG. 7 (1) is a top view, FIG. 4 (2) is a front view, and FIG. 4 (3) is a left side view. It is.
[Explanation of symbols]
100 Structural frame 110 H-shaped steel beam 112A Upward piece 114A Downward pieces 116, 116A, 116B ALC plate 118 Vertical wall plate 118A Receiving plate 118B Spacer plate 122 Hook bolt 123 Upward engagement groove 132 Inazuma plate 132A Substrate portion 132B Outer plate portion 133 Downward Engaging groove

Claims (6)

In a fixed structure in which a plurality of lightweight precast concrete plates constituting the wall plate of the structure are arranged side by side on the structure frame and fixed,
The structural housing is provided with a first fixing member having an upwardly projecting piece at a position corresponding to the lower end of each plate arranged vertically, and corresponds to the upper end of each plate. A second fixing member having a downward-facing piece protruding downward is provided at a position;
The plate body is attached to the vicinity of the lower end of the plate body, and has a first fixing tool having an open downward engaging groove that engages with the upward piece, and is attached to the vicinity of the upper end of the plate body. A second fixture having an open upward engaging groove on the upper side to be engaged with the downward piece,
The first fixture includes a substrate portion attached to the plate body, a protruding portion that protrudes from the upper and lower halfway portion of the substrate portion to the structural housing side, and an outer portion that extends downward from the tip of the protruding portion. Having a plate part,
The downward engagement groove is formed by the substrate portion and the outer plate portion,
A spacer plate having the same thickness as the substrate portion is disposed on the surface of the plate body facing the structural housing,
The downward engagement piece and the spacer plate are engaged with the upward engagement groove ,
The first fixing member is composed of an L-shaped angle formed of two pieces orthogonal to each other, one piece is attached horizontally to the structural housing, and the other piece projects upward, and above this The upward piece is constituted by the protruding piece, and the upper part of the spacer plate is aligned with the lower part of the upward piece,
This is a lightweight precast concrete plate fixing structure.   The second fixing member is configured by an L-shaped angle formed of two pieces orthogonal to each other, one piece is horizontally attached to the structural housing, and the other piece projects downward, and below this The fixed structure for a lightweight precast concrete plate according to claim 1, wherein the downward facing piece is constituted by a protruding piece. A receiving plate is arranged between the lower end surface of the plate body located on the upper side and the upper end surface of the plate body located on the lower side, and the lower end surface of the plate body located on the upper side is located above the plate body located on the lower side. 3. A lightweight precast concrete plate fixing structure according to claim 1, wherein the light receiving plate is received by an end face through the receiving plate, and the receiving plate and the spacer plate are integrally formed. And the lower end surface of the plate member positioned on the upper side, between the upper end surface of the plate member positioned on the lower side, according to claim 3, wherein the sealing member is interposed at a position apart from the structural framework than the backing plate Lightweight precast concrete plate structure. A hook bolt is attached to the vicinity of the upper end of the plate body. The hook bolt has a shaft portion that protrudes almost horizontally from the surface of the plate body facing the structure housing to the structure housing side, and is bent upward from the tip of the shaft portion. The lightweight precast concrete product according to any one of claims 1 to 4 , wherein the upward engaging groove is formed by a surface of the plate body facing the structural housing and the upward leading end portion. Plate fixing structure. 6. The light precast concrete plate fixing structure according to any one of claims 1 to 5 , wherein the plate is an ALC plate.

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