JPH03158540A - Supporting structure of lower end of external wall panel - Google Patents

Abstract

PURPOSE:To facilitate the alignment of an external wall panel by supporting the lower end of the external wall panel by a supporting bolt abutable on a lower face of a lower frame member and a panel bracket with an inserting through piece which is inserted through a longitudinal long hole provided on the lower frame member. CONSTITUTION:A lower part of a frame 3 is connected through a panel bracket 6 to a lower floor beam H2. The panel bracket 6 is formed of a horizontal piece 35 and a vertical piece 36, and mounted on a flange F2 to be fastened with a supporting bolt 22, which ascends to make the upper end of the panel bracket 6 abut on a lower frame member 12 for supporting the lower end of the frame 3. An inserting through piece 24 which is inserted through a long hole 21 provided on a bracket piece 17 and has an expanding out part 23 larger than the width dimension of the long hole 21 is fitted in a hole on a boss piece with itself protruding upward. Thus an external wall panel can move laterally and vertically to facilitate its alignment, and moreover can prevent its failure during an earthquake.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention improves the earthquake resistance of the outer wall panel by supporting the lower end of the outer wall panel made of concrete plates so as to be swingable in the longitudinal direction of the panel. This invention relates to a support structure for the lower end of an exterior wall panel that can be raised.

[Conventional technology]

In recent years, concrete wall panels have been frequently used for exterior walls, partition walls, etc. in order to improve the fire resistance and sound insulation of houses.

Since such a concrete panel is heavier than a normal wall panel with side panels attached to the front and back of the framework, the panel body is usually formed in a small size for convenience of manufacturing.

[Problem to be solved by the invention]

The upper and lower ends of the concrete panel were bolted to each other via crosspieces that ran along the upper and lower floor beams, respectively, which formed the bridge members of the house. Therefore, due to the overlap of manufacturing errors in the panels, dimensional errors in the frame, etc., a positional deviation occurs between the two, which requires a great deal of effort to correct.

Furthermore, when the concrete panels are rigidly connected to the frame members as described above, there is a risk that the concrete panels will not be able to follow the shaking of the frame body in the event of lateral shaking due to an earthquake, etc., and the panels will be damaged. be.

As a measure against such earthquakes, for example, it is possible to interpose a spring body such as anti-vibration rubber in the connection part, but although this method can absorb small amplitude shaking, it will not be effective during large amplitude medium or strong earthquakes. If so, it cannot be absorbed, and the interposition of a coil spring or the like would require a complicated structure and increase costs.

The present invention provides a panel receiver that connects the lower end of an exterior wall panel to a support bolt that can come into contact with the lower surface of an upper frame member disposed at the lower end of the exterior wall panel, and an insertion piece that passes through a long hole in the longitudinal direction provided in the lower frame member. The aim of the present invention is to provide a support structure for the lower end of an exterior wall panel that is based on support using metal fittings and that not only facilitates alignment when installing the exterior wall panel, but also prevents damage to the panel support fittings even during moderate to strong earthquakes. The purpose is

[Means to solve the problem]

The present invention is a support structure for the lower end of an outer wall panel that supports the lower end of an outer wall panel in which a concrete plate is attached to the outer surface of a steel frame, and in which a panel holder is attached to a bridging member placed below the outer wall panel. , the frame has a rectangular shape in which an upper frame member along the concrete plate and a lower frame member each having a horizontal and long support piece are connected at both ends by vertical members, and a long hole extending in the longitudinal direction in the support piece. The lower frame member is vertically screwed into the panel holder so that it can move forward and backward, and is supported by a support bolt that abuts the lower surface of the receiving piece, and the panel holder is provided with a hole in the long hole of the receiving piece. This is a support structure for the lower end of the outer wall panel, which is formed by passing through an insertion piece that is provided and has a bulge above the receiving piece.

[Effect]

Since the concrete plate is attached to the outer surface of a frame formed by connecting both ends of the upper and lower frame members with vertical members, the concrete plate is reinforced by the frame and increases its rigidity.

In addition, since the frame is supported by the frame member by the panel holder having the above structure, even if there is an installation error between the frame and the frame member, alignment can be easily performed.
It can improve the efficiency of construction work.

In addition, since the bottom frame material can swing and tilt between the panel holders, even in the event of a moderate to strong earthquake, there will be no force to twist the concrete plate, and the outer wall panel will not be affected by an earthquake. damage can be prevented.

〔Example〕

An embodiment of the present invention will be described below based on the drawings.

In the figure, the support structure for the lower end of the outer wall panel of the present invention includes attaching a concrete plate 5 to the outer surface of the frame 3, and
A horizontally extending lower frame member 12 of the frame 3 is supported by a panel holder 6 attached to a frame member E.

In this embodiment, in addition to the lower frame member 12, the frame 3 is attached to the upper frame member 7, lower mounting fittings 10.10 attached to both ends of the upper frame member η, and both ends of the lower frame member 12. It has a lower mounting fitting 15.15 and a vertical member 16.16 for connecting the upper and lower mounting fittings 10.15 and for attaching the interior material U, respectively.

The upper frame member 7 is a channel steel having an inner piece 7b and an outer piece 7C hanging from the outer edge of a long upper piece 7a, as shown in FIG.
Bolt holes d1 and d2 are provided near both ends of the outer piece 7C.

The lower frame member 12 is a groove-shaped member having a groove formed by an inner piece and an outer piece rising from the outer edge of the long lower piece, respectively,
A receiving piece 17 whose lower piece is supported by a panel receiving fitting 6
A pair of elongated holes 21 extending in the longitudinal direction are bored in the receiving piece 17 . Further, bolt holes d2, d2 are provided in the outer piece near both ends thereof.

The lower mounting fitting 10 is made of a rectangular plate and includes an upper substrate 8 on the inward surface of which the outer piece 7C of the upper frame material 7 comes into contact, and the upper substrate 8 has holes on the upper side aligned with the bolt holes d1. An upper mounting piece 9 that projects inwardly and vertically is provided at the lower part of the through hole. A pair of lower mounting fittings 10
．． 10. Both ends of the upper frame member 7 are integrally fixed to the upper frame member 7 by welding.

The lower mounting fitting 15 includes a lower substrate 13 made of a rectangular plate similar to the lower mounting fitting 10, and the lower substrate 13 has a through hole formed in the lower part aligned with the bolt hole d2, and an upper part. A lower mounting piece 14 is provided between the lower mounting piece 9 and the lower mounting piece 9, and located on the same plane as the lower mounting piece 9. A pair of lower mounting brackets 15.15 are integrally fixed to the lower frame member 12 at both ends of the lower frame member 12.

In this embodiment, the lower mounting fitting 15 is provided with an overhang piece 13a that extends outward from the lower end of the lower substrate 13.

A vertical member 16 is installed between the lower mounting piece 9 and the lower mounting piece 14.

In this embodiment, the vertical member 16 is a channel steel arranged with the groove part facing the center, and the upper and lower ends are bolted to the upper mounting piece 9 and the lower mounting piece 14, respectively, so that the lower mounting bracket 10 is secured to the vertical member 16. ,
Connect between the lower mounting brackets 15.

Therefore, the upper frame material 7 and the lower frame material 12 have upper and lower mounting brackets 10,
15 to the vertical members 16.16, a rectangular frame 3 is formed by the upper frame member 7, the lower frame member 12, the upper and lower mounting brackets 1O215, and the vertical members 16.16.

Further, the frame 3 maintains high strength and rigidity by forming all the above-mentioned members constituting the frame 3 using steel materials.

Further, an interior material U is attached to the inner surface of the vertical member 16, and the interior material U is passed between the vertical members 16 and 16 arranged oppositely.

The concrete plate 5 has a rectangular flat plate shape that is formed by pouring concrete into a mold and solidifying it, and the concrete material is ALC, which has a high degree of heat insulation due to the formation of closed cells during solidification. can be suitably adopted.

Further, the concrete plate 5 has a width larger than the width of the frame 3, and has an upper part on the inner surface that is aligned with the bolt hole d1 provided in the upper frame material 7 and protrudes inward. A bolt 31 is installed. Also concrete board 5
A bolt 32 that is aligned with the bolt hole d2 provided in the lower frame member 12 and protrudes like the bolt 31 is installed at the lower part of the inner surface of the lower frame member 12.

The lower end of the concrete plate 5 is placed on the overhang piece 13a of the lower mounting bracket 5, and the upper bolt 31 is pushed through the bolt hole d1 of the upper frame member 7 and tightened, while the lower bolt 32 The concrete plate 5 is attached to the outer surface of the frame 3 by passing it through the bolt hole d2 of the lower frame material 12 and tightening it into a nut, thereby forming the outer wall panel 2. Further, the frame 3 is connected at its upper part to the upper floor beam H1 and at its lower part to the lower floor beam H2.

The upper floor beam H1 and the lower floor beam H2 are connected at both ends to pillars erected on the foundation, and form a bridge member E of the house. In addition, in this embodiment, the upper floor beam H1 and the lower floor beam H2 are I-beams with flanges on the upper and lower sides, and the lower floor beam H2 is constructed as shown in FIG. It is attached to the side surface using a connecting metal fitting L. Therefore, the downstairs beam H2 is arranged to protrude outward from the upstairs beam H1.

The upper part of the frame 3 has a connecting fitting 33 having a vertical piece 33b that hangs down along the inner piece 7b of the upper frame member 7 from the outer edge of the horizontal piece 33a attached to the lower surface of the lower flange F1 of the upper floor beam H1 and bolted. The vertical piece 33b and the inner piece 7b are bolted to each other, and the upper part of the outer wall panel 2 is fixed to the frame member without being displaced.

On the other hand, the lower part of the frame 3 is connected to the downstairs beam H2 via the panel holder 6 as described above.

The panel holder 6 includes a horizontal piece 3 placed on the upper flange F2 of the downstairs beam H2 and bolted to the flange F2.
The vertical piece 36 includes a pair of nut pieces 39 and 39 having vertical screw holes, and a pair of boss pieces 40 having vertical holes.
．． 40 is installed.

The nut piece 39 has a support bolt 22 with a head at the upper end.
are screwed together vertically so that they can move forward and backward. As the support bolt 22 rises, its upper end comes into contact with the lower surface of the receiving piece 17 of the lower frame member 12, and the lower end of the frame 3 is supported by this contact.

Further, the hole of the boss piece 40 has the long hole 21 provided in the receiving piece 17.
The insertion piece 24, which has a bulging portion 23 larger than the width of the elongated hole 21 above, is attached by inserting its base 24a through the elongated hole 21 and protruding upward from the receiving piece 17. It will be done.

The insertion piece 24 and the boss piece 40 are fixed so that they cannot move up and down.

Therefore, the lower end of the frame 3 can swing laterally by the length of the elongated hole 21 as shown in FIG. It becomes possible to move in the direction.

As a result, when the upper floor beam H1 and the lower floor beam H2 move horizontally relative to each other during a moderate earthquake, the lower end of the outer wall panel 2 can move horizontally, and during a strong earthquake, as shown in Figure 7(b), Since the outer wall panel 2 can tilt, the outer wall panel 2 is not subjected to any force acting in its longitudinal direction due to any shaking, and damage to the outer wall panel 2 can be prevented.

Moreover, since the insertion piece 24 is provided with the bulging portion 23, there is no danger that the outer wall panel 2 and the panel holder 6 will come off (the outer wall panel can be prevented from falling off).

〔Effect of the invention〕

The supporting structure at the lower end of the exterior wall panel of the present invention, like the ridges, is a structure in which a concrete plate is attached to a frame, so the concrete plate is reinforced and the rigidity of the panel is increased.

In addition, since the frame is supported by the frame members using the panel holders configured as described above, even if there is an installation error between the frame and the frame members, positioning can be easily performed, improving the efficiency of construction work. improves.

In addition, since the bottom frame material can swing and tilt with respect to the panel holder, no torsional force is generated on the concrete plate even in the event of a moderate or strong earthquake, which prevents damage to the concrete plate due to an earthquake. Moreover, by providing the insertion piece with a bulge, it is possible to prevent the lower end of the outer wall panel from falling off from the frame member.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a cross-sectional view thereof, Fig. 3 is a perspective view showing the connection between a downstairs beam and a column of a frame member, and Fig. 4 is a main point of the present invention. Fig. 5 is a front view showing the panel holder together with its installation; Fig. 6 is an exploded perspective view showing the
The figure is an exploded perspective view, Figure 7 (a) to crest) is a striped diagram showing the function of the panel holder, and Figure 8 is a perspective view showing an example of a house in which the support structure for the lower end of an exterior wall panel of the present invention is adopted. It is a diagram. 2... Exterior wall panel, 3... Frame, 5...
Concrete plate, 6...-Panel bracket, 7...
- Upper frame material, 12- Lower frame material, 16- Vertical member, 17- Receptacle piece, 21- Long hole, 22- Support bolt, 23- Protruding portion, 24・−・−insertion piece,
E-・Framework material. 1g3 figure

Claims (1)

[Claims] 1. A support structure for the lower end of an outer wall panel that supports the lower end of an outer wall panel in which a concrete plate is attached to the outer surface of a steel frame, in which a panel holder is attached to a frame member arranged below the outer wall panel, and the frame has a rectangular shape in which both ends of an upper frame member that runs along the concrete plate and a lower frame member that has a horizontal and long support piece are joined by vertical members, and a long hole that extends in the longitudinal direction is provided in the support piece. , the lower frame material is vertically screwed into the panel holder so that it can move forward and backward, and is supported by a support bolt that abuts the lower surface of the receiver piece, and the long hole of the receiver piece is provided in the panel holder. A support structure for the lower end of an outer wall panel, which is formed by passing through an insertion piece having a bulge above the receiving piece.