JPH1096264A - Building unit with ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect a ceiling panel from being crushed and damaged when a building unit with the ceiling panel is kept in custody. SOLUTION: In an upper story building unit B, a floor panel 20 is constituted as a floor plane of structure by mounting a floor face member 25 on the upper surface of a floor frame built up in the shape of a square by a floor joist 21, a side joist and an end joist 23. A head tie 26 for connecting between both up and down units is mounted along three side edges of a ceiling panel 10. The ceiling panel 10 constituted of a furring strip holder 12, a ceiling furring strip 11 and a ceiling face member 14 is mounted to the head tie 26 by laying the furring strip holder 12 between the upper surfaces of a pair of head ties 26 opposed to each other to nail. Since a building structural member thick in the vertical direction is used for the head tie 26, the lower surface of the ceiling panel 10 is positioned upward of the lower surface of the head tie 26.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building unit with a ceiling, and more particularly to a ceiling unit in which a wall panel is erected on a floor panel and a ceiling panel is attached below the floor panel. For building units.

[0002]

2. Description of the Related Art In general, there is a wall-type construction method in which structural members are struck on floor and wall frames to form floor panels and wall panels, and these floor panels and wall panels are assembled into a three-dimensional structure to construct a building. Are known. According to this wall-type construction method, external force is uniformly supported on the entire floor and the entire wall, so that high structural strength can be obtained. Also, as a method for increasing the industrial production rate of a building, a method of a unit building is known. When the above-mentioned wall type construction method is applied to a unit building, one building is composed of a plurality of building units having wall panels erected on a floor panel and a roof unit joined to an upper part of each building unit. After each unit is produced in a factory, these units are transported to a building site and assembled on a previously prepared foundation. As shown in FIGS. 8 and 9, the lower-floor building units A1, A1,... Are first installed on a foundation D and connected to each other, and then the lower-floor building units A1, A are installed.
The upper-floor building units A2, A2,... Are installed and connected to each other above the upper-floor building units A1,.
The roof units B, B,... Are installed on the upper portions of the units 2, A2,.

[0003] Here, when the upper-floor building unit is installed, it is not structurally preferable to directly connect the upper surface of the wall panel of the lower-floor building unit and the side edge of the floor panel of the upper-floor building unit with bolts. There is a problem. Because the side edges of the floor panel of the upper-floor building unit are narrow end joists and side joists with the board thickness oriented horizontally, and bolt insertion holes perpendicular to these joists are formed. If it is provided, the material thickness becomes extremely thin in the cross-sectional direction passing through the center of the bolt insertion hole, and the pit force against a horizontal load is significantly reduced. Conventionally, as shown in FIG. 9, bolt insertion holes 300 are formed on the back side of the floor panel 100 in a joining splice lower frame called a wide head joint 200 having a vertical thickness in a vertical direction. Pierce the head tie 20
0 is attached along the side edge of the floor panel 100 to the lower surface of the end joist 400 or the side joist (not shown) of the floor panel 100,
When installing the upper-floor building unit A2, after placing the head ties 200 constituting the lowermost part of the building unit A2 on the lower-floor building unit A1 along the upper surface of the upper frame 600 of the wall panel 500, By connecting the head tie 200 and the upper frame 600 with the bolt 700, the lower-floor building unit A
1 and the upper-floor building unit A2 (see Japanese Patent Publication No. 58-30978).

[0004]

By the way, if the unit building is one method of increasing the industrial production rate of the building,
It is preferable that the ceiling is also previously incorporated in the building unit at the factory. In the building unit of the wall type construction method, as a result of the presence of the above-mentioned head tie 200, the ceiling defining the upper part of the lower floor space is not fixed to the wall panel upper frame 600 of the lower floor building unit A1, It is generally performed to be attached and fixed below the floor panel 100 of the upper floor building unit A2.

However, in the above-mentioned conventional upper-floor building unit A2, a member having a small thickness, that is, JAS
Since lumber or glued lumber of the size type 204 was used as the head joint 200, when the ceiling for the lower floor is attached to the back surface of the floor panel 100, the lower surface of the ceiling edge 800 is substantially flush with the lower surface of the head joint 200. As a result, the ceiling surface material 9
00 is located below the lower surface of the head joint 200. Therefore, if a building unit with a ceiling having such a structure is to be produced in a factory in advance, the ceiling panel will be disposed at the bottom of the building unit A2. During storage or transportation, there is a possibility that a ceiling panel that does not have strength to support the wall panel 500 or the floor panel 100 may be damaged or damaged by contacting the ground or the like. Under such circumstances, ceiling installation work in the unit building still had to rely on on-site construction, and as a result, there was a problem that the ceiling installation work could not be homogenized and the construction period could not be shortened. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a building unit with a ceiling capable of reducing the on-site construction burden and shortening the construction period.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to at least a floor panel constructed by attaching a floor panel to an upper surface of a floor frame assembled in a square shape by joists. A wall panel is erected on one side edge, and a joint lower frame for joining is formed on a lower side of the floor panel at least along a side edge of the floor panel. According to the building unit attached to the end joist or the side joist, a ceiling panel is provided below the floor panel and between at least one pair of the joint lower frames, a predetermined distance from the lower surface of the joint lower frame. Is mounted on the upper side by a distance of.

According to a second aspect of the present invention, there is provided the building unit with a ceiling according to the first aspect, wherein each of the joint lower frames is located on the inner side of the side panel or end joist of the floor panel. It is characterized in that it is attached to the end joist or the side joist in a protruding state.

According to a third aspect of the present invention, there is provided the building unit with a ceiling according to the first or second aspect, wherein the ceiling panel supports a ceiling margin for supporting a ceiling panel and a ceiling margin. It is characterized by the fact that it consists of a field support.

According to a fourth aspect of the present invention, there is provided the building unit with a ceiling according to the first or second aspect, wherein the ceiling panel includes a ceiling panel, a ceiling edge for supporting the ceiling panel, and And a field support for supporting the ceiling field.

According to a fifth aspect of the present invention, there is provided the building unit with a ceiling according to the third aspect, wherein a lower surface of the floor panel has a pair of upper surfaces of the pair of joint lower frames opposed to each other. A plurality of the ridges are inserted and fixed between the ridges, and further, a plurality of the ceiling ridges arranged in a state orthogonal to the ridges are attached and fixed to the lower surface of these ridges. And the height of the joint lower frame is set higher than the height of the ceiling edge.

According to a sixth aspect of the present invention, there is provided the building unit with a ceiling according to the fourth aspect, wherein a lower surface of the floor panel has a pair of upper surfaces of a pair of the joint lower frames opposed to each other. A plurality of the ridges are inserted and fixed in between, and a plurality of ceiling ridges arranged in a state orthogonal to the ridges are attached and fixed to the lower surface of these ridges, and further, The ceiling panel is entirely or partially attached to the lower surface of the ceiling edge, and compared to the sum of the thickness of the back of the ceiling edge and the thickness of the ceiling panel. It is characterized in that the lower frame is set tall.

According to a seventh aspect of the present invention, there is provided a building unit with a ceiling according to any one of the first to sixth aspects, wherein lumber or glued laminated lumber of JAS size format 404 is used as the joint lower frame. It is characterized by being.

[0014]

According to the structure of the present invention, since the ceiling panel is mounted a predetermined distance above the lower surface of the joining lower frame, the load on the wall panel and the floor panel can be reduced as a structural member for building. Is transmitted only downward by the joint lower frame, and is not transmitted downward by the ceiling panel having insufficient strength. Therefore, even if the ceiling panel is attached to the back of the floor panel from the factory stage in advance, the ceiling panel may be crushed during storage or transportation of the building unit,
There is no risk of damage.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. The description will be specifically made using an embodiment. FIG. 1 is a partially cutaway perspective view showing the structure of an upper-floor building unit with a ceiling according to an embodiment of the present invention. FIG. 2 is a partially enlarged view showing a vertical joining portion of the upper-floor building unit. Sectional drawing, FIG. 3 is a partially enlarged sectional view showing an enlarged main part of the building unit on the upper floor, and FIG. 4 is a plan view showing a floor panel with a ceiling panel constituting the building unit on the upper floor, partially cut away. FIG. 5 is a partially enlarged perspective view showing a part of the floor panel with the ceiling panel in an enlarged manner.
Is an enlarged partial cross-sectional view showing a joint state between the upper and lower floor building units, and FIG. 7 is a partial enlarged view showing a main part of the upper floor building unit installed above the lower floor building unit. It is an expanded sectional view.

The upper-floor building unit B in this example is a wooden-wall-type building unit for forming the second-floor room portion of the two-story unit building, and the second and third-floor room portions of the three-story unit building. In connection with this, as shown in FIG. 1, wall panels 30a, 30a, 30b are formed along three side edges of the floor panel 20.
And a ceiling panel 1 on the back of the floor panel 20.
The unit 0 is also configured as a building unit with a U-shaped wall-shaped ceiling by being attached in advance at a factory.

As shown in FIGS. 1 to 3, the floor panel 20 includes floor joists 21, 21,.
The end joists 23, 23 are nailed in a state of being abutted against the respective wooden ends at both ends thereof to form a rectangular frame, and the floor joists 21, 21, ... and the side joists 22,
Are also attached between the two 22 to form a floor frame, and a floor surface material 25 such as a structural plywood or a particle board is mounted on the upper surface of the floor frame to form a floor structure. ing. In this embodiment, various joists 2
For 1, 2, 23, lumber or glued lumber of JAS size format 210 (dry size 38 × 235 mm) or JAS size format 206 (dry size 38 × 140 mm) is preferably used.

In the upper-floor building unit B, the floor panel 2
As shown in FIGS. 1 to 7, a head tie 26 for joining to the lower-floor building unit A is provided below the lower end 0 at a position corresponding to the wall panel 30 of the lower-floor building unit A. Joist 2
The bottom joists 23, 23 and the side joists 22 are attached to the lower surfaces of the side joists 3, 23 and the side joists 22. In each head joint 26, a plurality of bolt insertion holes 26a for vertical joining with the lower-floor building unit A are provided at predetermined positions along the longitudinal direction of the end joists 23, 23 and the side joists 22.
Is provided. In this example, the JAS size format 404 (dry size 89 × 89 m) is used as the head tie 26.
m) lumber or glued laminated timber, each head joint 2
6 is a state in which the end joists 22 and 2 project from the end joists 23 or the side joists 22 of the floor panel 20 to the inside of the floor panel 20.
It is attached and fixed to 2 or lateral joist 23.

The wall panels 30a and 30b are shown in FIGS.
As shown in the figure, the upper frame 3 is positioned at the upper and lower ends of the vertical frames 31, 31,.
2 and the lower frame 33 are each nailed to form a wall frame, and wall surfaces 34, 34 such as gypsum board and wood chip cement plate are attached to both sides of the inner surface and the outer surface to form a bearing wall. The material 34 extends to the floor panel 20.
The inside of the wall panels 30a and 30b is filled with a heat insulating material 35 such as glass wool, and an opening K (FIG. 1) such as a doorway or a window is formed as necessary. In this embodiment, the vertical frames 31, 31,...
Has a JAS size format 204 (dry size 38 × 89).
mm) lumber or glued laminated lumber is preferably used.

As shown in FIG. 2, the upper frame 32 of each of the wall panels 30a, 30a, 30b is provided with bolt insertion holes 32a at a plurality of locations along the longitudinal direction. Alternatively, a joint bolt 40 having a double screw structure for mounting and fixing the roof unit is buried in a state where the upper male screw portion 41 (FIG. 6) projects upward from these bolt insertion holes 32a. Wall panel 3 having such a configuration
0a and 30a are along the pair of opposing wife sides (short sides) of the floor panel 20, and the wall panel 30b is
The lower frame 33 is arranged along one side edge of the girder side (long side) and nailed to the floor panel 20 to be erected.

As shown in FIGS. 1 to 7, the ceiling panel 10 has ceiling edges 11, 11,... And field receivers 12, 12 for supporting the ceiling edges 11, 11,. ,
Are arranged vertically and horizontally at right angles to each other, and nailed into a lattice-shaped ceiling frame via spacers 13 such as plywood at each orthogonal position, and a gypsum board or the like is provided on the lower surface of the ceiling frame. The ceiling surface material 14 is stretched and configured. The ceiling panel 10 is used to form a ceiling portion on the lower floor of the unit building, and is provided between the upper surfaces of a pair of head ties 26, 26 arranged opposite to each other in the girder direction. Are fixed to each other at predetermined intervals by nailing, so that they are attached to the back surface of the floor panel 20 at a factory in advance.

In this embodiment, the field receivers 12, 1
, And ceiling ridges 11, 11, ... are lumber or laminated wood having a vertical thickness of approximately 38 mm, spacers 13 are plywood having a thickness of approximately 9 mm, and ceiling panels 14 are thick. Saga 1
Gypsum boards of 2 to 15 mm are each suitably used. From this dimension setting, in this embodiment, the vertical thickness of the head ties 26, 26,... Is 89 mm, while the top surface of the spacer 13
Through the steps 11,..., The thickness up to the surface of the ceiling panel 14 is 59 to 62 mm. As a result, the upper surface of the spacer 13 is substantially flush with the head ties 26, 26,.
The ceiling panel 20 is fixed such that the lower surface of the ceiling panel 10 is located on a plane about 27 to 30 mm above the lower surface of the head ties 26, 26,.

An upper-floor building unit B with a ceiling having the above structure.
Is produced in a factory together with the roof unit and the lower-floor building unit A, transported to a construction site, and assembled on a previously prepared foundation to complete the unit building.
The assembling is performed by first installing the lower-floor building unit A on the foundation and connecting them together, and then, as shown in FIGS. 6 and 7,
The wall panel 30a of the installed lower-floor building unit A,
The upper-floor building unit B is installed on the upper portion of the upper-floor building unit 30b and connected to each other.
This is performed by installing a roof unit on the upper part of 30b and interconnecting them.

In the joining operation between the upper and lower floor building units A and B, first, as shown in FIG. 6, the crane is lifted above the lower floor building unit A (the upper frame 32 such as the wall panel 30a). The lower part (head joint 26) of the upper-floor building unit B is drilled in the joining bolt 40 projecting upward from the upper surface of the (lower floor) upper frame 32 and the head joint 26 (upper floor). With the bolt insertion hole 26a
As you descend, the head tie 26 (upper floor) (lower floor)
The joint bolt 40 of the upper frame 32 (on the lower floor) is inserted into the bolt insertion hole 26a of the head tie 26 (on the upper floor). Then, the nut 43 is screwed into the male screw portion 41 at the upper end of the inserted joining bolt 40, thereby completing the joining of the upper and lower building units A and B. Thereafter, a part located on the inner side surface of the head tie 26 (upper floor side) and below the ceiling surface member 14 and an adjustment wall member 36 such as a gypsum board are attached.

As described above, according to the upper-floor building unit B having the above-described structure, the ceiling panel 10 has the head ties 26, 26,
Are mounted about 27 to 30 mm above the lower surface of the wall panel 30a, 30b or the floor panel 20.
Load of the head tie 26, 2 as a structural member for building
.. Are transmitted downward only by the ceiling panel 10 having insufficient strength.
Therefore, even if the ceiling panel 10 is previously attached to the back surface of the floor panel 20 from the factory stage, the ceiling panel 10 will not be crushed or damaged when the upper floor building unit B is stored or transported.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and there may be changes in the design without departing from the gist of the present invention. Is also included in the present invention. For example, in the above-described embodiment, the JAS size format 404
Although lumber or glued laminated lumber (dimensions 89 x 89 mm at the time of drying) was used, the present invention is not limited to this.
0 may be attached to the upper side of the lower surface of the head joint 26 by a predetermined distance.

Further, in the above-described embodiment, the head joints 26, 26 on the back surface of the floor panel 20 are provided with
3. The case where the ceiling panel 10 is completed by attaching the ceiling edge 11 and the ceiling surface material 14 in this order has been described. Instead of this, first, the edge support 11, the spacer 13, and the ceiling edge 1
1 and the ceiling panel 14 are assembled to complete the ceiling panel 10, and the completed ceiling panel 10 is connected to the heads 26, 26,.
May be attached to the floor panel 20 after being attached to the upper surface of the floor panel 20.

In the above embodiment, the ceiling panel 10
However, although the above description has been made of the case where the frame is composed of the ridge 11, the spacer 13, the ceiling ridge 11 and the ceiling panel 14, the present invention is not limited to this, and the spacer 13 may be omitted. In addition, the ceiling surface material 14 may be attached on site. Further, the ceiling frame may be formed by using another frame member such as a horizontal rail instead of the ridge support 11 and the ceiling ridge 11.

In the above-described embodiment, the ceiling panel 10 is mounted on a U-shaped upper-floor building unit having wall panels 30a, 30a and 30b erected on three side edges of the floor panel 20. Although the case of mounting has been described, the present invention is not limited to this, and a wall panel is provided upright on two opposing side edges of the floor panel 21 according to which part of the unit building constitutes the unit building. The ceiling panel 10 having the above configuration can also be attached to a character-shaped upper-floor building unit.

In the above-described embodiment, the building unit with a ceiling according to the present invention is applied to the upper-floor building unit (the second-floor building unit and the third-floor building unit). (1st floor building unit). As an example of suitably applying the present invention to a lower-floor building unit (a first-floor building unit), a case where a basement is provided in a unit building can be cited.

[0031]

As described above, according to the structure of the present invention, since the ceiling panel is mounted a predetermined distance above the lower surface of the joint lower frame, the ceiling panel is mounted on the wall panel or the floor panel. The load is transmitted downward only by the joint lower frame as a structural member for a building, and is not transmitted downward by a ceiling panel having insufficient strength. therefore,
Even if the ceiling panel is attached to the back of the floor panel in advance from the factory stage, the ceiling panel will not be crushed or damaged when storing or transporting the building unit. Shortening can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view, partially broken away, of a configuration of an upper-floor building unit with a ceiling according to an embodiment of the present invention.

FIG. 2 is a partially enlarged cross-sectional view showing, in an enlarged manner, a vertical joint portion of the upper-floor building unit.

FIG. 3 is a partially enlarged cross-sectional view showing a main part of the upper-floor building unit in an enlarged manner.

FIG. 4 is a partially cutaway plan view showing a floor panel with a ceiling panel constituting the upper floor building unit.

FIG. 5 is a partially enlarged perspective view showing a part of the floor panel in an enlarged manner.

FIG. 6 is a partially enlarged cross-sectional view showing a joint state between the upper and lower floor building units in an enlarged manner.

FIG. 7 is a partially enlarged cross-sectional view showing an enlarged main part of the upper-floor building unit installed above the lower-floor building unit.

FIG. 8 is a perspective view showing the structure of a unit building.

FIG. 9 is a diagram showing a conventional joint structure of unit buildings.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ceiling panel 11 Ceiling field edge 12 Field edge support 14 Ceiling surface material 20 Floor panel 21 Floor joist (joist) 22 Side joist (joist) 23 Edge joist (joist) 25 Floor surface material 26 Head joint (joint lower frame) 30 a , 30b wall panel

Claims (7)

[Claims] 1. A wall panel is erected on a floor panel constructed by attaching a floor panel to an upper surface of a floor frame assembled in a square shape by joists. Is a building unit attached to a pair of end joists or side joists at least facing each other along a side edge of the floor panel, wherein the lower side of the floor panel and at least one pair of A ceiling-mounted building unit, wherein a ceiling panel is attached between the joint lower frames by a predetermined distance above a lower surface of the joint lower frame. 2. The joint lower frame is attached to the end joist or the side joist in a state protruding inward of the floor panel from the end joist or the side joist of the floor panel. The building unit with a ceiling according to claim 1. 3. The ceiling with a ceiling panel according to claim 1, wherein the ceiling panel comprises a ceiling edge for supporting a ceiling surface material, and a field edge support for supporting the ceiling edge. Building unit. 4. The ceiling panel according to claim 1, wherein the ceiling panel includes a ceiling panel, a ceiling edge for supporting the ceiling panel, and a field support for supporting the ceiling panel. Or 2
Building unit with ceiling as described. 5. A plurality of ridges are fixed across the lower surface of the floor panel between upper surfaces of a pair of the joint lower frames disposed opposite to each other. A plurality of the ceiling ridges arranged in a state orthogonal to the field ridges are attached and fixed to the lower surface of the field ridges, and the joint lower frame is compared with the back of the ceiling ridges. The building unit with a ceiling according to claim 3, wherein the height of the building is set high. 6. A plurality of field margin supports are inserted and fixed below the floor panel between upper surfaces of a pair of the joint lower frames disposed to face each other. On the lower surface of the edge support, a plurality of the ceiling edges arranged in a state orthogonal to the edge edge are attached and fixed, and further, on the lower surface of these ceiling edges, the ceiling face material is wholly or partially. The height of the joint lower frame is set to be higher than the sum of the thickness of the back of the ceiling edge and the thickness of the ceiling surface material. Building unit with ceiling. 7. The building unit with a ceiling according to claim 1, wherein lumber or glued laminated wood of JAS size format 404 is used as the joint lower frame.