JPH07145639A - Three story house unit building - Google Patents

Abstract

PURPOSE:To make it possible to produce a three story unit building at a low cost in a state to maintain strength surely against seismic force, wind load, snow load, etc. CONSTITUTION:Heads 11, sills 12 and jambs 10, 10,... are assembled to form a wall frame, a three story unit building is so completed that a plurality of woody building units formed in the shape of a box respectively by erecting wall panels 3 constituted of structural face members 13 mounted to the wall frame along side edges of floor panels 2 are horizontally and vertically connected to each other, and the wall panels 3 are set in approximately the same wall thickness irrespective of upper and lower floors. While, the total number of jambs 10, 10,... built in one floor building unit 1 forming one floor section is so set that it is in excess of the total number of jambs built in two and three floor building units forming two/three floor sections.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-story unit building suitable for use in a detached house.

[0002]

2. Description of the Related Art A unit building system is known as a system for increasing the industrial production rate of buildings. A unit building is a building in which one building is divided into several units in advance and produced in a factory, and these are constructed / assembled at a construction site. Units that make up a building are classified by focusing on the construction method and main structural materials, and it is known that there are steel-based units that are assembled by applying the frame construction method and wooden units that are assembled by using the wall method. Has been. That is, as described in Japanese Patent Laid-Open No. 54-93807, the above-mentioned steel frame unit is a box-shaped steel frame structure in which the upper and lower ends of steel pipe columns at the four corners are rigidly connected by shaped steel beams. The steel frame is made to have proof stress, while the wood-based unit is disclosed in JP-A-55-15.
As described in Japanese Patent No. 2236, etc., a wooden floor framework and a wall framework are struck with structural surface materials to form floor panels and wall panels, and these floor panels and wall panels are assembled into a box-shaped structure to form a wall. The whole and the entire floor are made to have proof stress.

By the way, conventionally, there are two types of two-story unit buildings, one consisting of a steel frame type unit and the other consisting of a wood type unit, but as a three-story unit building, Only those consisting of a steel frame type unit having excellent fire resistance and proof stress existed in practice.

[0004]

However, since the steel-based unit has a high material cost and involves complicated and precise joining work such as welding, it is
The cost tends to be high. Moreover, when it comes to three-story steel-frame unit buildings, the number of steel-frame units will increase, so it will not be possible to sell at a reasonable price, which was one factor that prevented the spread of three-story detached houses. . Further, if the three-story unit building is limited to the steel frame system, it is against the demand for diversification of materials, and eventually, the motivation for development of materials is diminished. On the other hand, three-story detached houses are not publicly and densely packed, so strict fire-resistant structural standards are required by law as for three-story buildings such as apartments, hospitals, and dormitories. It has not been done. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a three-story unit building that can be produced at low cost while reliably maintaining the resistance to earthquakes, wind loads, snow loads, and the like. I am trying.

[0005]

In order to solve the above-mentioned problems, in the invention according to claim 1, an upper frame, a lower frame and a vertical frame are assembled into a wall frame, and a structural surface is attached to the wall frame. A plurality of wooden building units, each of which is formed in a box shape by vertically arranging the wall panels to which wood is attached, along the side edges of the floor panels, are connected to each other in the horizontal and vertical directions. Related to a three-story unit building to be completed, the plurality of wall panels forming the wall portion of the three-story unit building may be omitted regardless of whether they are on the upper floor or the lower floor. While setting the wall thickness to the same dimension, the total number of vertical frames incorporated in the building unit that constitutes the first floor portion immediately below the third floor portion of the three-story unit building is the building unit that constitutes the third floor portion. It was decided to set it to be larger than the total number of vertical frames incorporated in.

According to the second aspect of the present invention, a floor panel is constructed by combining an upper frame, a lower frame and a vertical frame into a wall frame, and a structural panel is attached to the wall frame. The present invention relates to a three-story unit building completed by connecting a plurality of wood-based building units, each of which is formed in a box shape by standing along the side edge of the panel, in a horizontal direction and a vertical direction, and The plurality of wall panels constituting the wall portion of the building unit are set to have substantially the same wall thickness regardless of whether the wall portion is on the upper floor or the wall portion on the lower floor. The vertical frame incorporated in the building unit forming the first floor portion, which is directly below the third floor portion, is made of thicker material than the vertical frame incorporated in the building unit forming the third floor portion.

[0007]

In the structure of the first aspect of the present invention, a building unit in which a large number of vertical frames are incorporated in the wall panel is arranged in the first floor portion where the load is the largest. Therefore, even if it receives excessive snow load, wind load, seismic force, etc., there is no fear that the building will collapse. On the other hand, the wall thickness of the wall panel forming the wall portion of the first floor portion is also set to be the same as the wall thickness of the wall panel forming the wall portions of the second floor portion and the third floor portion. Therefore, it is possible to secure the same indoor dimensions for the first and second floors of the building as for the second and third floors. This means that the interior dimensions of the first floor of a three-story unit building can be made the same as the interior dimensions of each floor of a conventional two-story unit. The existing one can be used as it is without changing the design dimensions of the menu. Therefore, the unitization of a wooden three-story building does not lead to an increase in the number of parts (type of parts).

In addition, the present invention is not intended to ensure the necessary structural strength by making the wall panel of the first floor part thicker than the wall panels of the second floor part and the third floor part. Therefore, it is not necessary to lumber a wide vertical frame from a large-diameter tree, and a stable supply of structural wood can be maintained without destroying the natural environment.

According to the second aspect of the present invention, a building unit in which a vertical frame made of a thicker material than a normal one is incorporated in the wall panel is arranged in the first floor portion where the load is the largest. . Therefore, the same effect as that of the first aspect of the invention can be obtained.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a building unit (hereinafter referred to as a first-floor building unit) that constitutes a first-floor room portion of a three-story unit building that is an embodiment of the present invention.
The same-floor building unit 1 is a wooden room unit formed by applying a wall-type construction method, and as shown in FIG.
Wall panels 3, 3, ... Are erected along the three side edges of the floor panel 2.

The floor panel 2 has a rectangular frame structure in which the end joists 6 and 6 are nailed to the floor joists 4, 4 ... And the outermost side lateral joists 5 and 5 at right angles to the wood mouths. , And floor joists 4, 7, ... And side joists 5, 5, are also attached to each other to form a floor frame, and a structural plywood or particle board is formed on the upper surface of the floor frame. , Etc., and the bases 9, 9, ... On the lower surface of the floor frame.
Are attached and configured. The bases 9, 9, ... On the back side of the floor panel 2, on the lower surfaces of the side joists 5 and the end joists 6, which are to be arranged immediately above the foundation,
Moreover, the joists 5 and 6 are abutted and fixed along the longitudinal direction of the joists 5 and 6, and one side edge portion of the joists 5 and 6 is fixed.
Of the floor panel 2 is projected from the inner surface of the floor panel 2. During the assembly and construction of the unit building, each base 9 is placed in contact with the upper surface of the foundation and fastened and fixed with anchor bolts.

The wall panels 3 have vertical frames 10, 10, ...
The upper frame 11 and the lower frame 12 are nailed at the upper end and the lower end, respectively, in a state of being butted against these wood mouths to form a wall frame structure, and a gypsum board, a wood chip cement plate or the like is provided on both inner and outer surfaces of the wall frame structure. The face materials 13 and 13 are attached, and the inside is further filled with a heat insulating material. Further, openings such as entrances and exits and windows are formed in these wall panels 3 as needed. It should be noted that 204 materials (thickness: 38 mm, width: 89 mm) referred to in the JAS dimensional format that has been widely used as a structural material for a wooden two-storied unit building
mm) is also used as it is for the vertical frames 10, 10, ... In this example. However, each of the wall panels 3 is composed of a large number of vertical frames 10, 10, ... Compared with a normal wall panel applied to a two-story unit building, and thereby structural strength is enhanced. ing.

FIG. 2 is a sectional view showing the structure of the joint portion of the first-floor building unit 1. As shown in the figure, the wall panel 3 is erected on the floor panel 2 by nailing it in the lower frame 12. 1 shows a first-floor building unit 1 in which a wall panel 3 is erected on three side edges of a floor panel 2 to form a U-shaped wall, the first-floor building unit 1 is a building unit. Depending on which part you configure
For example, a first-floor building unit forming an L-shaped wall and a first-floor building unit forming a double-walled wall are also formed.

A plurality of upper and lower floor joining bolts 14 used for fixing the second-floor building unit placed directly on the upper frame 11 are separated from each other by a predetermined distance, and
It is planted with the external thread protruding upward. On the other hand, each base 9 is provided with a plurality of bolt insertion holes 15 along its longitudinal direction for inserting the anchor bolts protruding from the upper surface of the foundation.

FIG. 3 is a perspective view showing a building unit (hereinafter referred to as a second-floor third-floor building unit, a second-floor (third-floor) building unit, etc.) that constitutes the second-floor and third-floor room portions of the three-story unit building of this example. It is a figure. The second-floor third-floor building unit 16 is common to the first-floor building unit 1 in that it is a wood-based unit formed by applying a wall type construction method, but a vertical frame (204) for the wall panels 17, 17 ,. Material) 10, 1
The total number of built-in 0, ... Is smaller than that of the wall panels 3, 3, ... Applied to the first-floor building unit 1,
It is different from the 1st floor building unit 1. Wall panel 17,1
The total number of vertical frames 10, 10, ... incorporated in 7, ... Is smaller than that of the first-floor building unit 1, but the total number of vertical frames incorporated in a normal wall panel applied to a two-story unit building. And are set to the same number,
The thickness of the wall panel is set to be the same for the first-floor building unit and the second-floor third-floor building unit 16. Since the load / external stress applied to the second-floor third-floor building unit 16 is approximately the same as the load / external stress applied to each building unit of the two-story unit building, the total number of vertical frames 10, 10, ... Less than that of the 1st floor building unit 1,
There is no problem in structural strength. In addition, in the second-floor third-floor building unit 16, the portion corresponding to the base 9 of the first-floor building unit 1 is referred to as a head joint 18, 18, ..., Each head joint 18 is used when assembling / constructing the unit building,
The upper surface of the wall panel 3 of the corresponding first-floor building unit 1 (upper frame 1
It is brought into contact with 1) and joined by bolts.

The first-floor building unit 1 and the second-floor third-floor building unit 16 having the above-mentioned structure are produced in advance in a factory as a box-shaped product having a transportable size in order to increase the industrial production rate of the building. It is transported to the site, hoisted by a crane, and constructed and assembled. FIG. 4 schematically shows the three-story unit building 19 completed in this way, and the first-story building units 1, 1, ... Are fastened to the foundation 20 with anchor bolts and are adjacent to each other. The first-floor building units 1 and 1 are mutually joined between the upper frame and the upper frame via a joint plate (not shown). The connection between the first-floor building unit 1 and the second-floor building unit 16 is shown in FIG.
As shown in FIG. 5, when the second-floor building unit 16 is placed on the upper part of the first-floor building unit 1, the upper and lower floor joining bolts of the upper frame 11 projecting from the upper surface of each head joint 18 via the bolt insertion holes 15. This is done by screwing a nut 21 onto the screw 14. The same applies to the connection between the second-floor building unit 16 and the third-floor building unit 16.

As described above, according to the above configuration, since the building unit having a large number of vertical frames is used in the first floor portion having the largest load bearing, excessive snow load, wind load, seismic force, etc. The building is not afraid to collapse, even if it is received.
On the other hand, the wall thickness of the wall panel 3 that constitutes the wall of the first floor is also
Since it is set to the same thickness as the wall thickness of the wall panel 17 that constitutes the walls of the second and third floors, the same indoor dimensions as the second and third floors are secured for the first floor of the building. it can. This means that the interior dimensions of the first floor portion of the three-story unit building 19 are the same as the interior dimensions of each floor portion of the conventional two-story unit, thus changing the design dimensions of the indoor menu. The conventional one can be used without any modification. Therefore, the unitization of a wooden three-story building does not lead to an increase in the number of parts (type of parts).

In addition, in the vertical frame 10 incorporated in the first-floor building unit 1, 206 materials (thickness 38 mm, width 140 mm), 208 materials (thickness 38 mm,
Width 184 mm), 406 materials (thickness 89 mm, width 140 m)
m), and 408 materials (thickness 89 mm, width 184 mm) and the like are not used, it is not necessary to lumber a wide vertical frame from a large-diameter tree, so without destroying the natural environment,
A stable supply of structural wood can be sustained.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific structure is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. Further, in the above embodiment, the second-floor building unit constituting the second-floor portion of the building has the same configuration as the third-floor building unit, but it may have the same configuration as the first-floor building unit. If you do this,
The yield strength is further enhanced.

Further, in the above-mentioned embodiment, a general-purpose vertical frame member (204 material) is provided in the first floor portion where the load is the largest.
Although the case where a large number of are incorporated to form a wall panel has been described, instead of this, the total number of incorporated vertical frames is
While using the same number as the second and third floor building units, for example, thick materials such as 304 materials (thickness 64 mm, width 89 mm), 404 materials (thickness 89 mm, width 89 mm) in the JAS dimensional format are used as vertical frames. Even if it does so, it is possible to obtain the same effect as that of the above-described embodiment without changing the wall thickness.

[0021]

As described above, according to the configuration of the present invention, a building unit (or a thick vertical frame) having a large number of vertical frames is installed in the first-floor portion having the largest load. Since the building unit is installed, even if it receives an excessive snow load, wind load, seismic force, etc., there is no fear that the building will collapse. On the other hand, the wall thickness of the wall panel forming the wall of the first floor is also set to be the same as the wall thickness of the wall panel forming the wall of the second and third floors. As for the above, it is possible to secure the same indoor dimensions as those on the second and third floors. This means that the indoor dimensions of the first-floor portion of a three-story unit building can be set to be the same as the indoor dimensions of each floor portion of a conventional two-story unit, and if the same as the conventional two-story unit, The existing one can be used as it is without changing the design dimension of the indoor menu. Therefore, the unitization of a wooden three-story building does not lead to an increase in the number of parts (type of parts).

In addition, the present invention ensures the necessary structural strength by making the wall panel of the building unit forming the first floor part thicker than the wall panels of the building units forming the second and third floor parts. It is not meant to be done. Therefore, it is not necessary to lumber a wide vertical frame from a large-diameter tree, and a stable supply of structural wood can be maintained without destroying the natural environment.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first-floor building unit constituting a first-floor room portion of a three-story unit building which is an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a structure of a joint portion of a building unit on the same floor.

FIG. 3 is a perspective view showing a second-floor third-floor building unit constituting a second-floor third-floor room portion of the same three-story unit building.

FIG. 4 is a diagram schematically showing the same three-story unit building.

FIG. 5 is a cross-sectional view showing a structure of a joint portion of the same three-story unit building.

[Explanation of symbols] 1 First floor building unit (wooden building unit) 2 Floor panel 3 Wall panel 10 Vertical frame 11 Upper frame 12 Lower frame 13 Face material 16 Second floor Third floor building unit 19 Third floor unit building

Claims (2)

[Claims] 1. A wall panel formed by assembling an upper frame, a lower frame and a vertical frame into a wall frame, and a structural panel is attached to the wall frame, and a wall panel is erected along side edges of the floor panel. In a three-story unit building completed by connecting a plurality of wooden building units, each of which is formed in a box shape, to each other in the horizontal and vertical directions, the wall portion of the three-story unit building is completed. The plurality of wall panels constituting the, regardless of whether it is on the upper floor and the lower floor, the wall thickness is set to substantially the same dimension, while the three-story unit building of the third floor part of the It is characterized in that the total number of vertical frames incorporated in the building unit constituting the first floor portion corresponding to the immediately lower portion is set to be larger than the total number of vertical frames incorporated in the building unit constituting the third floor portion. Three-story unit building. 2. A wall panel formed by assembling an upper frame, a lower frame and a vertical frame into a wall frame, and a structural panel is attached to the wall frame, and a wall panel is erected along side edges of the floor panel. In a three-story unit building completed by connecting a plurality of wooden building units, each of which is formed in a box shape, to each other in the horizontal direction and the vertical direction, a plurality of wall units of the building unit The wall panels have the same wall thickness regardless of whether they are on the upper floor or on the lower floor, while they correspond to the portion directly below the third floor portion of the three-story unit building. A three-story unit building, wherein a thicker material is used for a vertical frame incorporated in a building unit forming a first floor portion than that used for a vertical frame incorporated in a building unit forming the third floor portion.