JPH102014A - Main entrance structure of unit building, and its forming method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a main entrance structure and its forming method capable of sufficiently securing the height of a rail, securing an extensive indoor space, and performing common use of members. SOLUTION: In forming a main entrance in an upstairs part of a unit building 10 having upstairs and downstairs, a floor member 31 to form a dirt floor of the main entrance is fixed to a downstairs unit 11, and installation of a lower beam 20 at the entrance position of the main entrance of an upstairs unit 12 is omitted. The height of the dirt floor is set to be low compared with the conventional height, and the height of a rail 34 is secured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an entrance structure of a unit building and a method of forming the same, and can be used when an entrance is formed on an upper floor portion of a unit building having upper and lower floors.

[0002]

2. Description of the Related Art Conventionally, a unit-type building having upper and lower floors constructed by assembling a plurality of building units produced in a factory on site has been performed. When a two-family house, apartment, or the like is to be built with such a unit-type building, it may be necessary to form an entrance in an upper floor unit that constitutes an upper floor portion.

In general, a box-shaped building unit constituting a unit-type building is constructed such that both upper and lower floor units are framed as frames, and are bridged between pillars erected at four corners and upper ends of these pillars. It has an upper beam and a lower beam bridged between the lower ends. Therefore, when the entrance is formed in the upper floor portion of the unit-type building, the entrance structure must enter and exit over the lower beam of the upper floor unit stacked on the lower floor unit.

[0004]

However, in the above-mentioned entrance structure which enters and exits through the lower beam of the upper floor unit, as described above, the presence of the lower beam of the upper floor unit causes the entrance to the entrance hall from the dirt or from the dirt to the entrance hall. The upward frame provided at the mouth is subject to installation restrictions. In other words, the flooring material that forms the floor between the soils usually has a structure that is supported by the lower beams of the upper floor unit, so there is a structural limit to setting the height of the floor between the soils low. Therefore, there has been a problem that the height of the ascending frame cannot be sufficiently secured. Also, in this situation, if the height of the ascending frame is sufficiently taken, the height of the floor of the entrance hall will be high, so the height width between the indoor ceiling and the floor will be small. Therefore, there is a problem that the indoor space becomes narrow.

[0005] Further, when the entrance is formed on the first floor, since the first floor has the foundation of the building, the ground is often formed by using the foundation. Since there is no equivalent to the foundation, as described above, the structure in which the floor material between the soil is supported by the lower beams of the upper floor unit is adopted. For this reason, the entrance structure on the first floor and the entrance on the second and higher floors have different support structures for the floor material between the soil, so a common member cannot be used as the floor material, and the cost is reduced by sharing the members. There was a problem that cannot be achieved.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an entrance structure of a unit-type building capable of securing a sufficient height of an upward frame, increasing an indoor space, and sharing members, and forming the same. It is to provide a method.

[0007]

The entrance structure of the unit type building according to the present invention will be described with reference to the drawings. A unit having upper and lower floors constructed by assembling a plurality of building units produced in a factory on site. In the entrance structure of the unit type building in which the entrance is formed on the upper floor portion of the type buildings 10, 40, 70, the floor members 31, 61, 61, which form the floor between the entrances in the lower floor units 11, 41, 71. 91 is fixed, and the installation of the lower beams 20, 50, 80 at the entrance positions of the entrances of the upper floor units 12, 42, 72 is omitted.

A more specific embodiment of the entrance structure of the unit-type building of the present invention has the following structure. In one embodiment, the floor surface material 31 is:
An example is a structure in which a floor surface of an entrance porch of an upper floor portion provided on the outdoor side of the soil and connected to the soil is integrally formed with the floor of the soil. Further, as another aspect, the floor surface material 61 has an area that can be accommodated in a section of the upper surface of the lower floor unit 41 and the lower floor unit 4
1 is fixed at a position above the upper surface position. Further, as still another aspect, the floor surface material 91 has an area that fits into a section of the upper surface of the lower floor unit 71 and is fixed to a position lower than the upper surface position of the lower floor unit 71. Structure.

According to the present invention, the lower beams 20, 5 are located at the entrances of the entrances of the upper floor units 12, 42, 72.
Since the installation of 0,80 was omitted, the upper floor units 12,4
Since the presence of the lower beams 20, 50, 80 of 2,72 does not cause any restrictions in the design of the slabs and the upstiles 34, 64, 94, the height position of the floor between the slabs is set lower than before. And the height H of the up frames 34, 64, 94 is sufficiently secured, and the up frame 3
Even if the height H of 4, 64, 94 is sufficiently ensured, there is no inconvenience that the height of the floor in the room is increased and the space in the room is narrowed.

The floor materials 31, 61, 91 between the soils are:
Since the lower floor units 11, 41, 71 are fixed and securely supported, the lower beams 20, 50 at the entrances of the entrances of the upper floor units 12, 42, 72, which conventionally support the floor material between the floors. , 80 is omitted, the soil is surely formed.

Further, since the lower beams 20, 50, 80 of the upper floor units 12, 42, 72 are omitted, floor surface materials 31, 61, 91 forming the soil of the second floor or more, and the first floor part, It is possible to use the same member as the floor surface material that forms the soil, and it is possible to reduce the construction cost, thereby achieving the above object.

Further, the method for forming the entrance of a unit-type building according to the present invention is a method for constructing the above-described entrance structure of a unit-type building according to the present invention. Unit type building 1 having upper and lower floors constructed by assembling a plurality of produced building units on site
In a method of forming a entrance of a unit-type building in which an entrance is formed in an upper floor portion of an upper floor unit 0, an upper floor unit 12 in which installation of a lower beam 20 is omitted at an entrance position of the entrance in advance in a factory, and thereafter, After the lower floor unit 11 is installed at the site, the upper floor unit 12 is installed thereon, and then the floor material 31 forming the floor between the entrances is fixed to the lower floor unit 1.
1 is fixed.

In the case where the entrance of the upper floor is formed by such a method, the entrance structure is such that the size (area) of the floor material 31 between the soils does not fit in the section of the upper surface of the lower floor unit 11. Can be built reliably. In addition, an entrance structure in which the size of the floor materials 61 and 91 between the soils fits in the section on the upper surface of the lower floor units 41 and 71 may be formed by this method.

Still another method is described. The method of forming the entrance of a unit building according to the present invention is a unit building 40 having upper and lower floors constructed by assembling a plurality of building units produced in a factory on site. , 70, the upper-floor units 42, 72 in which the installation of the lower beams 50, 80 at the entrance position of the entrance are omitted in advance in the factory. At the same time, floor materials 61, 91 forming the floor between the entrances are fixed to the lower floor units 41, 71, and then the lower floor units 41, 71 are installed on site, and The upper-floor units 42 and 72 are installed in the second floor.

[0015] Such a method can be applied to a floor material 61, 9 between soils.
The size (area) of 1 is applied to the entrance structure that fits in the section on the upper surface of the lower floor units 41 and 71. If the upper floor entrance is formed by such a method, the factory Since the floor materials 61, 91 between the soils are fixed to the lower floor units 41, 71, simplification of the on-site construction and shortening of the construction period are achieved.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. First Embodiment FIGS. 1 and 2 show an exploded perspective view and a longitudinal sectional view of an entrance structure of a unit-type building 10 according to a first embodiment. The unit-type building 10 is a building in which an entrance is formed in an upper floor portion such as a two-family house or an apartment, for example, and a lower floor unit 11 constituting a lower floor portion and an upper floor portion which is stacked and disposed immediately above the lower floor unit 11. And an entrance structure 30 for forming an entrance of an upper floor portion. In addition, unit building 10
Are not shown in the figure.

The framing frame of the lower floor unit 11 includes columns 13 erected at four corners, an upper beam 14 bridged between the upper ends of these columns 13, and a lower beam 15 bridged between the lower ends.
And an intermediate beam 16 spanned between the upper beams 14. The frame of the upper floor unit 12 is
Pillars 17 standing at four corners and two pillars 17 on the near side in the figure
Intermediate pillars 18 provided at intermediate positions of the
And an upper beam 19 spanned between the upper ends of the intermediate pillars 18,
A lower beam 20 bridged between the lower ends, an intermediate beam 21 bridged between the upper end of the intermediate column 18 and the upper beam 19, and an intermediate column 1
8 and an intermediate beam 22 bridged between the lower beam 20 and the lower beam 20. The lower beam 20 is not provided over the entire periphery of the lower surface of the upper floor unit 12, and the lower beam 20 is not provided at a position corresponding to the entrance of the entrance. The framework frames of the lower floor unit 11 and the upper floor unit 12 are formed of a hollow prismatic steel material, a channel steel material having a C-shaped cross section, or the like.

The entrance structure 30 includes a floor member 31 made of lightweight cellular concrete, which integrally forms a floor surface between the soil at the entrance of the upper floor portion and a floor surface of the entrance porch connected thereto, and this floor surface. And a handrail wall 32 erected on a part of the periphery of the material 31. Therefore, in a state where the entrance structure 30 is installed in the unit building 10, the portion 31A of the flooring material 31 for forming the floor between the floors fits inside the lower floor unit 11 and the upper floor unit 12, and On the other hand, floor surface material 31
Part 31B for forming the floor of the entrance porch
But, it projects from the side position of the lower floor unit 11 and the upper floor unit 12 to the outdoor side.

The handrail wall 32 is fixed to an entrance porch forming portion 31B of the floor panel 31. This fix
It is desirable to carry out in a factory in advance. Also, as shown by a two-dot chain line in FIG. 1, a frame 33 supporting the entrance porch forming portion 31B is used as the entrance component 30 in advance in the factory.
The handrail wall 32 may be fixed to such a frame 33. Further, a stair (not shown) reaching the lower floor portion is connected to a position around the entrance porch forming portion 31B where the handrail wall 32 is not provided.

Soil forming portion 31A of floor surface material 31
Is provided on the upper side of the frame as shown by a two-dot chain line in the figure. In addition, the installation position and installation direction of
The present invention is not limited to the case shown in the figure, and may be set at an arbitrary installation position or installation direction according to the variation of the entrance.
Accordingly, the arrangement of the particle boards 35 forming the floor of the entrance hall is also arbitrary (see a two-dot chain line in FIG. 2). These ascending frames 34 and particle boards 35
May be integrated with the floor surface material 31 at the factory in advance as the entrance structure 30, or may be attached at the site.

A support member 36 having an inverted L-shaped cross section is fixed to the upper beam 14 and the intermediate beam 16 of the lower floor unit 11 for supporting the portion 31A for forming the intersoil of the floor panel 31. The floor member 31 is attached to the support member 36 by bolting. When the floor member 31 is attached to the support member 36, the floor member 31 is moved from the upper surface position of the lower floor unit 11. Is also fixed at the upper position. In addition, a fixing member 37 having a bolt hole 37A through which a bolt 37B embedded in the end surface of the flooring material 31 is provided is fixed to a portion of the lower beam 20 of the upper floor unit 12 located on the back side of the entrance. Thus, the floor member 31 is mainly fixed in the horizontal direction.

In the first embodiment, the entrance of the upper floor of the unit building 10 is formed as follows. First, in advance in the factory, the lower floor unit 11,
The entrance structure 30 including the upper-floor unit 12 and the floor material 31 in which the installation of the lower beam 20 is partially omitted is formed. Next, the lower floor unit 11, the upper floor unit 12, and the entrance structure 30 are transported to a building site by a truck or the like.

Then, at the site, the lower floor unit 11
Is installed, and then the upper floor unit 12 is installed thereon.
After that, the frame 33 is fixed to the upper beam 14 of the lower floor unit 11, and then the entrance structure 30 is attached. In addition, the frame 33 is used as the entrance structure 30 in advance in the factory.
If they are integrated with one, they are integrally attached.

According to the first embodiment, the following effects can be obtained. That is, the installation of the lower beam 20 at the entrance position of the entrance of the upper floor unit 12 is omitted, so that the presence of the lower beam 20 of the upper floor unit 12 does not limit the design of the dirt floor and the upward frame 34. ,
The height of the floor between the soil can be set low. For this reason, the height dimension H of the up frame 34 can be sufficiently secured, and even if the height dimension H of the up frame 34 is sufficiently secured in this way, the height of the indoor floor surface (the particle board 35 There is no inconvenience that the indoor space becomes narrow due to an increase in the height position).

Further, since the floor panel 31 is fixed to the lower floor unit 11 via the support member 36 and is securely supported, the entrance of the upper floor unit 12 which has conventionally supported the floor panel between soils is provided. Even if the lower beam 20 at the entrance position is omitted, the soil can be reliably formed.

Further, since the lower beam 20 of the upper floor unit 12 is omitted, the members of the floor member 31 forming the floor of the second floor or more and the floor member forming the floor of the first floor are common. And construction costs can be reduced.

[Second Embodiment] FIGS. 3 and 4 are an exploded perspective view and a longitudinal sectional view of an entrance structure of a unit-type building 40 according to a second embodiment. Unit building 40
Is a building in which an entrance is formed in an upper floor portion of, for example, a two-family house or an apartment, and a lower floor unit 41 constituting a lower floor portion and an upper floor constituting an upper floor portion which are stacked and disposed immediately above this unit. And a floor unit 42. The other building units constituting the unit building 40 are not shown.

The frame of the lower floor unit 41 includes columns 43, upper beams 44, lower beams 45, and intermediate beams 46 as in the case of the first embodiment. The frame of the upper floor unit 42 includes a column 47, an intermediate column 48, an upper beam 49, a lower beam 50, and intermediate beams 51 and 52, as in the case of the first embodiment. The lower beam 50 is not provided over the entire periphery of the lower surface of the upper floor unit 42, and the lower beam 50 is not provided at a position corresponding to the entrance of the entrance.

The upper beam 44 and the intermediate beam 46 of the lower floor unit 41 are provided with a floor member 61 made of lightweight cellular concrete which forms a floor surface between soils of the upper floor portion via a support member 66 having an inverted L-shaped cross section. Are fixed by bolting. The floor surface material 61 has an area that can be accommodated in a section on the upper surface of the lower floor unit 41 and is fixed at a position above the upper surface position of the lower floor unit 41.

Above the floor panel 61, an upward frame 64 is provided as shown by a two-dot chain line in the figure. In addition, the installation position and the installation direction of the upward frame 64 are not limited to the illustrated case, and may be any installation position and the installation direction according to the variation of the entrance. Accordingly, the arrangement of the particle boards forming the floor of the entrance hall is arbitrary. The upward frame 64 and the particle board may be installed at a factory or on-site.

In the second embodiment, the entrance of the upper floor of the unit building 40 is formed as follows. First, in a factory, the floor material 61 is fixed to the lower floor unit 41, and the upper floor unit 42 in which the installation of the lower beam 50 is partially omitted is formed. Next, the lower floor unit 41 and the upper floor unit 42 are transported to a construction site by a truck or the like. Thereafter, at the site, the lower floor unit 41 is installed, and then the upper floor unit 42 is installed thereon.

According to the second embodiment, the following effects can be obtained. That is, similarly to the case of the first embodiment, the lower beam 5 at the entrance position of the entrance of the upper floor unit 42 is used.
Since the installation of 0 is omitted, the height position of the floor between the soil can be set lower than before. Therefore, the height dimension H of the up frame 64 can be sufficiently secured, and the up frame 6
Even if the height dimension H of 4 is sufficiently ensured, there is no inconvenience that the height of the floor in the room is increased and the space in the room is narrowed.

Further, since the floor panel 61 is fixed to the lower floor unit 41 via the support member 66 and is securely supported, the entrance of the upper floor unit 42 which has conventionally supported the floor panel between soils is provided. Even if the lower beam 50 at the entrance position is omitted, it is possible to reliably form the soil.

Further, since the lower beams 50 of the upper floor unit 42 are omitted, the members of the floor surface material 61 forming the floor of the second floor or higher and the floor surface material forming the floor of the first floor are common. And construction costs can be reduced.

Since the floor panel 61 is fixed to the lower floor unit 41 in the factory in advance, the on-site work can be reduced, and the construction period can be shortened.

[Third Embodiment] FIGS. 5 and 6 are an exploded perspective view and a longitudinal sectional view of an entrance structure of a unit building 70 according to a third embodiment. Unit building 70
Is a building in which an entrance is formed on the upper floor of a two-family house or an apartment, for example. The lower floor unit 71 constituting the lower floor and the upper floor constituting the upper floor by being stacked immediately above the lower unit 71 And a floor unit 72. Other building units constituting the unit building 70 are not shown.

As in the first and second embodiments, the frame of the lower floor unit 71 includes a column 73 and an upper beam 7.
4, a lower beam 75, and an intermediate beam 76. The framing frame of the upper floor unit 72 includes the first,
As in the case of the second embodiment, it is configured to include a column 77, an intermediate column 78, an upper beam 79, a lower beam 80, and intermediate beams 81 and 82. The lower beam 80 is connected to the upper floor unit 72.
The lower beam 80 is not provided at a position corresponding to the entrance of the entrance.

The upper beam 74 and the intermediate beam 76 of the lower floor unit 71 are provided with a floor member 91 made of lightweight cellular concrete which forms a floor surface between soils of the upper floor portion via a support member 96 having an L-shaped cross section. It is fixed by bolting. The floor material 91 has an area that fits within the section of the upper surface of the lower floor unit 71 and is fixed at a position below the upper surface position of the lower floor unit 71.

Above the floor panel 91, an up frame 94 is provided as shown by a two-dot chain line in the figure. In addition, the installation position and installation direction of the upward frame 94 are not limited to the illustrated case, and may be any installation position and installation direction according to the variation of the entrance. Accordingly, the arrangement of the particle boards forming the floor of the entrance hall is arbitrary. The upward frame 94 and the particle board may be installed at a factory or on-site.

In the third embodiment, the entrance of the upper floor of the unit building 70 is formed as follows. First, a floor surface material 91 is fixed to a lower floor unit 71 in advance in a factory, and an upper floor unit 72 in which installation of the lower beam 80 is partially omitted is formed. Next, the lower floor unit 71 and the upper floor unit 72 are transported to a construction site by a truck or the like. Thereafter, at the site, the lower floor unit 71 is installed, and then the upper floor unit 72 is installed thereon.

According to the third embodiment, the following effects can be obtained. That is, as in the first and second embodiments, the installation of the lower beam 80 at the entrance position of the entrance of the upper floor unit 72 is omitted. Can be set low. For this reason, the height dimension H of the up frame 94 can be sufficiently secured, and even if the height dimension H of the up frame 94 is sufficiently secured in this way, the height of the floor in the room rises, thereby increasing the indoor space. Does not occur.

Further, since the floor panel 91 is fixed to the lower floor unit 71 via the support member 96 and is securely supported, the entrance of the upper floor unit 72 which has conventionally supported the floor panel between soils is provided. Even if the lower beam 80 at the entrance position is omitted, it is possible to reliably form the soil.

Further, since the lower beam 80 of the upper floor unit 72 is omitted, the members of the floor material 91 forming the floor of the second floor or more and the floor material forming the floor of the first floor are common. And construction costs can be reduced.

Since the floor material 91 is fixed to the lower floor unit 71 in the factory in advance, the on-site work can be reduced, and the construction period can be shortened.

It should be noted that the present invention is not limited to the above-described embodiment, and modifications and the like within a range that can achieve the object of the present invention are included in the present invention. That is, in the second and third embodiments, the floor surface members 61 and 91 are fixed in advance to the lower floor units 41 and 71 at the factory, but may be attached on site. However, it is preferable to fix it in a factory in advance because it can reduce the on-site work.

The lower floor unit 1 of each of the above embodiments
1, 41, 71 and the upper floor units 12, 42, 72
It is not limited to the building units constituting the first floor part and the second floor part, but may be building units constituting the second floor part and the third floor part, or building units constituting higher and lower floors. Any building unit may be used.

[0047]

As described above, according to the present invention, the installation of the lower beam at the entrance position of the entrance of the upper floor unit is omitted, and the floor material forming the soil is fixed to the lower floor unit. Therefore, the height of the floor between the soil can be set lower than before, so that the height of the rising frame can be sufficiently secured, and even if the height of the rising frame is sufficiently secured in this way, the indoor There is no inconvenience that the height of the floor surface rises and the indoor space becomes narrower, and the floor surface material that forms the soil between the second floor and the first floor and the floor material that forms the floor between the first floor There is an effect that the members can be shared.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the first embodiment.

FIG. 3 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of the second embodiment.

FIG. 5 is an exploded perspective view showing a third embodiment of the present invention.

FIG. 6 is a longitudinal sectional view of the third embodiment.

[Explanation of symbols]

 10, 40, 70 Unit-type building 11, 41, 71 Lower floor unit 12, 42, 72 Upper floor unit 20, 50, 80 Lower beam of upper floor unit 31, 61, 91 Floor surface material that forms a floor between soil 34, 64, 94

Claims (6)

[Claims] 1. An entrance structure of a unit-type building which forms an entrance at an upper floor portion of a unit-type building having upper and lower floors constructed by assembling a plurality of building units produced at a factory on site, wherein the lower floor unit is An entrance structure for a unit-type building, wherein a floor material forming a floor surface between the entrances is fixed, and installation of a lower beam at an entrance position of the entrance of an upper floor unit is omitted. 2. The entrance structure of a unit-type building according to claim 1, wherein the floor surface material is a floor surface of an entrance porch in an upper floor portion provided on an outdoor side of the soil and continuous with the soil. Entrance structure of a unit-type building characterized by being formed integrally with the floor of the soil. 3. The entrance structure of a unit-type building according to claim 1, wherein the floor surface material has an area that fits into a section on the upper surface of the lower floor unit, and is located at a position higher than the upper surface position of the lower floor unit. The entrance structure of a unit building, which is fixed at the upper position. 4. The entrance structure of a unit-type building according to claim 1, wherein the floor surface material has an area that fits into a section on the upper surface of the lower floor unit, and is larger than an upper surface position of the lower floor unit. The entrance structure of a unit building, which is fixed at the lower position. 5. A method for forming a front door of a unit building having a plurality of building units produced in a factory and assembling the building unit on site, and forming an entrance on an upper floor portion of the unit building having upper and lower floors. In the upper floor unit where the installation of the lower beam is omitted at the entrance position of the entrance in advance, then, after installing the lower floor unit on site, and then installing the upper floor unit thereon, A method for forming an entrance of a unit-type building, comprising fixing a floor material forming a floor between soil to the lower floor unit. 6. A method of forming a front entrance in a unit building having upper and lower floors constructed by assembling a plurality of building units produced in a factory at a site and having upper and lower floors. At the entrance position of the entrance, an upper floor unit in which the lower beams are not installed at the entrance position is formed, and the floor material forming the floor between the entrances is fixed to the lower floor unit. Forming the entrance of a unit-type building, wherein the lower-floor unit is installed and then the upper-floor unit is installed thereon.