JPH083216B2 - Panel and beam joint structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a joint structure between a panel and a beam, which can prevent the large-sized wall panel PL from bending and deforming, and can prevent damages to face materials, cloths, and the like. .

[Conventional technology]

BACKGROUND ART Conventionally, there is a panel construction method as one of construction methods for constructing a prefabricated house in which construction members are produced in advance in a house, particularly a factory.

With the panel construction method, as shown in FIG. 9, a house is assembled by connecting wall panels e with connecting fittings i. Further, in this panel construction method, a floor beam b having a girder shape is placed on the downstairs wall panel e1, and a roof beam c is placed on the upstairs wall panel e2 to reinforce each other.

Further, in this panel construction method, since it is premised that no columns are used, the wall panel e uses a frame in which a steel frame member is arranged in a rectangular shape, and the vertical frame member bears a vertical axial force. . Regarding horizontal force, it has been formed as a stress skin panel to be carried by face materials attached to the front and back of the frame.

Although this panel construction method can make the assembly extremely efficient and can reduce the construction cost, since the weight of the wall panel is large, the machine assembly construction using a crane or the like is a prerequisite. Further, in this construction method, since it is premised on the machine assembly work, the wall panel e is 3 to 6 times as large as the reference module M.
A large wall panel that is about twice as wide is used.

On the other hand, in such a panel construction method, since the wall panel is the stress skin panel in which the face material bears the load as described above, in order to carry the load as a whole, as shown in FIG. , C and the upper surface of the wall panel e were directly contacted and fixed.

[Problems to be Solved by the Invention]

As a result, as described above, in combination with the wide width of the wall panel, the beam b, c due to the load acting on the beam b, c
When c is bent, this load is directly transmitted to the wall panel, and as a result, the wall panel is deformed such as bent.
Further, this deformation not only deteriorates the appearance of the house but also causes cracks and the like by deforming the interior material, exterior material and the like. In particular, this crack often occurs when a brittle material such as gypsum board is used as the face material. Also, the deformation of this face material is
Problems to be solved such as damage to the cloth such as cracks of the cloth attached to the face material occur.

It is an object of the present invention to provide a joint structure between a panel and a beam that can reduce deformation of the wall panel, damage to the cloth, etc., based on the provision of a gap between the large wall panel and the beam.

[Means for solving the problem]

The present invention provides an upper surface of a large wall panel having a wide frame made of steel, in which vertical frame members for axial load are bridged at least at both ends of an upper frame member and a lower frame member, and an upper surface of the large wall panel. And a horizontal lower piece which is bolted to the upper surface of the large-sized wall panel while providing a gap between the lower surface of the steel beam having a vertical member positioned substantially on the same vertical line as the vertical frame member and The horizontal metal piece that is bolted to the lower surface of the beam is joined to the vertical vertical piece, and the joint metal fittings that are arranged in the gap are positioned on the vertical line that passes through the vertical frame member and the upper surface of the large wall panel and the beam. This is a joint structure of a panel and a beam that joins the lower surface of the.

[Action]

The large-sized wall panel has a framework in which a vertical frame member made of steel for axial load is arranged, and the space between the beam and the large-sized wall panel is connected by a joint fitting located on the vertical line of the vertical frame member. As a result, the vertical frame member bears the axial force from the beam. In addition, a gap is formed between the joint fittings, so that the load does not act on the large-sized wall panel in the range where the vertical frame member does not exist, and therefore, the bending and deformation of the large-sized wall panel can be reduced. It can prevent the material from cracking and the cloth from breaking.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 shows an example of a house HA that uses a large wall panel PL.
Shown in the state of being built, the house HA has a large wall panel PL3 that is three times as long as the standard module on the lower and upper floors.
Then, a large wall panel PL4 having a length four times that of the reference module M is arranged. As the large-sized wall panel PL, one having an opening such as a doorway, a window, or a blind one having no opening is appropriately selected and used.

In addition, the large wall panel PL is joined using the connecting fittings 6 ...
Also, a floor beam 4A made of a lattice-like lattice beam, which is a steel beam 4 according to the present invention, is attached to the upper surface of the large-scale wall panel PL of the lower floor, and a roof beam 4B is attached to the large-scale wall panel PL of the upper floor. Install.

As shown in FIG. 2 (a), the floor beam 4A includes end plates 43, 43 positioned at both ends between an upper chord member 41 and a lower chord member 42, which are groove-shaped members whose groove portions are opposed to each other, and the end plate 43. A pair of mounting plates that face the side surface of the floor beam 4A across the reference module M from
The lattices 45 connecting between the mounting plates 44, 44 and the mounting plates 44, 44, 44 and the end plates 43, 44 are connected in a V shape. A reinforcing plate 47 is fixed between the mounting plates 44 and 44 facing each other. Further, the end plates 43, 43, the mounting plate 44, the reinforcing plate 47 ,.
Are collectively called vertical materials.

The horizontal web of the upper chord member 41 and the lower chord member 42 is a mounting piece 47.
A and 47B are formed.

As shown in FIG. 2 (b), the roof beam 4B has vertical end plates 43 attached to both ends of a base body made of spliced beams in which webs of channel steel are welded back to back. The mounting pieces 47A and 47B are formed by the flanges.

The length between the end faces of the end plates 43, 43 is determined by the reference module M.
Is set to an integer multiple of.

The large wall panel PL is, as shown in FIG. 2 (a),
It includes a large wall panel PLA having a framework pLA with diagonal members 24 and a large wall panel PLB with a diagonal plam frame pLB shown in FIG.

The frame pLA is an outer frame 22 in which vertical frame members 21c, 21c made of square steel pipes are laid across both ends of an upper frame member 21a and a lower frame member 21b made of grooved steel with groove portions facing each other. Equipped with. In addition, in the outer frame 22, a vertical frame member 2 with grooves facing each other is provided.
3 and 23 are arranged so as to separate the reference module M, and the vertical frame members 23 and 2
3, the diagonal member 24 is arranged in a rhombic shape in a space surrounded by the upper and lower frame members 21a and 21b.

As a result, the large wall panel PLA has the vertical frame members 21c, 21
c and 23 bear the axial force in the vertical direction and
The horizontal force is carried by. In the case of the frame pLA shown in FIG. 2 (a), one vertical frame member 23 is replaced with the vertical frame member 2 at one end.
A middle bar 25 made of wood is provided in contact with 1c and leaves a space for forming an opening at the other end. Below the lower frame member 21b, leg members 26 having the same length as the lower frame member 21b are provided, with vertical frame members 21c and 21c at both ends, and a joint piece 27 located below the inner vertical frame member 23. To install.

Further, in this frame pLA, as schematically shown in FIG. 3, an interior material 28 which is a face material is provided between the upper frame member 21a and the lower frame member 21b.
A large wall panel PL is formed by adding A and the exterior material 28B.

In the frame structure pLB shown in FIG. 4, middle bars 25 are bridged between the outer frames 22 having the leg members 26 at appropriate pitches, and the interior material 28A and exterior material 28B (not shown) are additionally provided. As a result, a large blind wall panel PLB having no opening can be formed.

The beam 4 (floor beam 4A), the roof beam 4B, and the large-sized wall panel PL are joined together by using a joint fitting 5.

As shown in FIG. 2 (a), the joint fitting 5 is a bottomed rectangular tube in which a horizontal upper piece 51 and a lower piece 52 are joined by vertical standing pieces 53, 53 and a back piece is provided on one edge. Make a state. Further, in the joint fitting 5, the upper piece 51 is bolted to the lower surface of the lower mounting piece 47B of the beam 4, and the lower piece 52 is bolted to the upper surface of the upper frame member 21a of the large wall panel PL.

Further, the joint fitting 5 is a vertical frame member in the large wall panel PL.
Position them on a substantially vertical line passing through 21c and 23, respectively. Therefore,
In the case of the large wall panel PLA shown in FIG. 2 (a), it is arranged above the vertical frame members 21c, 21c at both ends and above the inner vertical frame member 23.

In the case of the large wall panel PLB shown in FIG. 4, it is arranged only above the vertical frame members 21c, 21c at both ends.

As a result, a gap G is formed between the upper surface of the large wall panel PL and the lower surface of the beam 4 arranged above the large wall panel PL as shown in FIG.
Are formed between the joint fittings 5 and 5, respectively.

The joint fittings 5 are located on the vertical lines of the vertical frame members 21c and 23 between the large-scale wall panel PL on the lower floor and the upper floor, and the floor beam 4A and the roof beam 4B, respectively. Further, the vertical frame members 21c and 23 and the floor beams 4A
The vertical members are located on substantially the same vertical line because they are separated by an integral multiple of the reference module M.

In this way, by arranging the joint fitting 5 on the vertical line of the vertical frame members 21c and 23 for bearing the axial force, the vertical axial force acting on the beam 4 can be carried by the vertical frame members 21c and 23. Transmits smoothly downward.

Further, by forming the gap G between the joint fittings 5 and 5, the flexure of the beam 4 between the joint fittings 5 and 5 is absorbed, and the flexure is prevented from being transmitted to the large wall panel PL. This allows
The interior material 28A, which prevents bending and bending that occur in the large wall panel PL when the lower surface of the beam 4 and the upper surface of the large wall panel PL contact each other,
The deformation and cracking of the exterior material 28B and the damage such as the breakage of the cloth attached to the interior material 28A are effectively prevented.

Therefore, the large-sized wall panel PL carries the axial force by the vertical frame members 21c and 23, and the horizontal force is carried by the appropriately arranged diagonal member 24.

Adjacent large wall panels PL, PL are joined together by a connecting fitting 6.

As shown in FIG. 1, the large-sized wall panels PL are laterally juxtaposed with a gap K1 therebetween and are arranged at a right angle with a gap K2 at a corner portion. The gaps K1 and K2 are both set to be the same (hereinafter referred to as the gap K), and the connecting fitting 6 is arranged in the gap K.

The connecting metal fitting 6 is a connecting metal fitting 6A for connecting in parallel between the large-sized wall panels PL, which are horizontally arranged in parallel as shown in FIGS. 1 and 5.
And a connecting fitting 6B for connecting a corner portion and for connecting a corner shown in FIGS. 1 and 6.

The connecting metal fittings 6A are aligned with the mounting holes 29a provided on the side end surface of the large-sized wall panel PL on both sides of the horizontal base piece 61 which can be inserted into the gap K by being horizontal and having the same plane shape as the gap K. A fixed piece 62 having a hole portion 62a is formed at a right angle to the base piece 61, and one side edge thereof is joined by a back piece 63, and the base piece 61 is also provided with a hole portion 61a. .

Therefore, as shown in FIGS. 7 and 8, the connecting metal fitting 6A is connected to each other by using bolts and nuts that pass through the hole portion 62a of the fixing piece 62 and the mounting hole 29a of the side end surface of the large-sized wall panel PL. it can.

In addition, connecting metal fittings that connect the large-scale wall panels PL downstairs at the bottom
The base piece 61 of 6A is bolted to the anchor bolt Da provided on the foundation D.

Note that the connecting metal fitting 6A located on the upper side has the base piece 61 facing upward, and connects the lower portion with the mounting hole 48a below the floor beam 4A, and is bolted to the base material 61 of the connecting metal fitting 6A of the same structure. .

A connecting metal fitting 6A connecting the large wall panels PL on the upper floor with the lower end
The base piece 61 is bolted to the base piece 61 of the connecting fitting 6A to be attached using the attachment hole 48a at the upper end of the floor beam 4A.

Further, as shown in detail in FIG. 6, the connecting fitting 6B for connecting the corner portion has a base piece 61 having the same shape as the base piece 61 of the connecting fitting 6A.
Further, fixing pieces 62, 62 having a hole portion 62a and intersecting at a right angle are formed.

At the time of installation, as shown in FIG. 3, the large wall panel PL and the beam 4 are previously connected by the joint fitting 5. Further, it is erected while being lifted by a crane or the like using eye bolts 49 passing through mounting holes 48b provided in the vicinity of both ends of the mounting piece 47A on the beam 4.

Further, the large-scale wall panel PL downstairs is bolted by inserting the attachment hole provided in the leg member 26 into the anchor bolt Da of the foundation D. In addition, using the connecting metal fittings 6A and 6B, a large-scale wall panel P downstairs
L and floor beam 4A are connected, and large-scale wall panel PL on the floor is also built.

As a result, the house HA can be formed by erecting the walls in sequence and providing floors, roofing materials, and the like.

〔The invention's effect〕

The large wall panel PL has a framework in which a vertical frame member for axial load bearing made of steel is arranged, and a space between the beam and the large wall panel is provided by a joint fitting located on the vertical line of the vertical frame member. By being connected, the vertical frame member bears the axial force from the beam. Further, a gap is formed between the joint fittings, and therefore, in the range of the large-sized wall panel where the vertical frame member does not exist, no load acts on the large-sized wall panel, thus reducing the bending and deformation of the large-sized wall panel. The surface material can be prevented from cracking and the cloth can be prevented from being damaged. Moreover, since the horizontal upper piece and the lower piece of the joint metal fitting are joined by the vertical standing piece, the axial piece from the beam can be smoothly transmitted to the vertical frame member by the standing piece, and the joint piece has a simple structure. Therefore, in addition to being easily manufactured, it is also useful for increasing the efficiency of the connection work between the beam and the large wall panel.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a house using a panel-beam joint structure of the present invention, and FIG. 2 (a) is a perspective view illustrating a frame of a floor beam and a large-sized wall panel. b) is a perspective view illustrating a roof beam, FIG. 3 is a perspective view illustrating a large wall panel joined to a floor beam, FIG. 4 is a perspective view illustrating a large wall panel having no diagonal member, and FIG. FIG. 6 is a perspective view illustrating a connecting metal fitting, FIG. 7 is a front view illustrating a connected state of a large-sized wall panel using the connecting metal fitting, FIG. 8 is a cross-sectional view thereof, and FIG. 9 is an outline of a panel construction house. The front view shown and FIG. 10 are cross-sectional views illustrating a conventional structure. 4 ... Beam, 4A ... Floor beam, 4B ... Roof beam, 5 ... Joint fitting, 6, 6A, 6B ... Connecting fitting, 21a ... Upper frame material, 21b ...
Lower frame material, 21c, 23 ... Vertical frame material, 24 ... Diagonal material, 29a ... Mounting hole, G ... Gap, PL ... Large wall panel, pLA, pLB ... Large wall panel framework,

Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical indication location E04B 2/56 605 E 6951-2E 611 B 6951-2E 621 A 6951-2E J 6951-2E 631 J 6951-2E 632 D 6951-2E 651 Q 6951-2E A 6951-2E

Claims (1)

[Claims] 1. An upper surface of a large wall panel having a wide frame made of steel in which vertical frame members for axial load are bridged at least at both ends of an upper frame member and a lower frame member, and above the large wall panel. A horizontal lower piece provided with a gap between the vertical frame member and a lower surface of a steel beam having a vertical member positioned substantially on the same vertical line and bolted to the upper surface of the large wall panel. And a horizontal upper piece bolted to the lower surface of the beam are joined with a vertical standing piece, and a joint metal fitting arranged in the gap is positioned on a vertical line passing through the vertical frame member and the upper surface of the large wall panel. A panel and beam joint structure that connects the lower surface of the beam.