JP3312881B2 - Building method and building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building method and a building for extending an existing single-family building vertically upward.

[0002]

2. Description of the Related Art Due to recent amendments to the Building Standard Law and deregulation, construction of three-story buildings is allowed even in areas where only two-story buildings have been conventionally approved. It is becoming increasingly desirable to extend existing buildings vertically above them.

Conventionally, for example, in order to convert a two-story building to a three-story building, the strength of columns, walls, beams, and the like is taken into consideration.
It was not possible to build a new three-story building on top of the second floor, first removing all existing two-story buildings and building a three-story building on the site. .

[0004]

As described above, conventionally, for example, in order to convert a two-story building into a three-story building, all the existing two-story buildings are first removed. There was no other way to build a three-story building on the site, but if the existing building was new, it would not only be extremely uneconomical, but also the increase in industrial waste, which has become a major problem in recent years. can not deny.

[0005] In addition, existing buildings that have been occupied must be removed, and residents are forced to move for several months until a new building is completed, which not only makes living inconvenient, but also causes inconvenience. Expenses cannot be ignored.

The present invention has been made in view of the above-mentioned problems of the related art, and utilizes an existing building, and a building method and a building in which a resident can extend the building vertically upward without moving even temporarily. Is to be realized.

[0007]

Means for Solving the Problems The first invention is an existing one.
In the construction method of a single-family building, a new space is newly added at the top while residents are living along the vertical direction of the single-family building without removing all of the single-family building. Existing foundation with an inverted T-shaped section of a detached building
Inside of the new inverted L-shaped foundation that matches the existing foundation
The support shall be installed on the new foundation.
And by, in the inside of the side wall near the existing single-family building, upper end erected a support member extending to above the roof member of the existing single-family building, a new roof member to the upper end of the support member by building, after providing the upper roof member of an existing single-family building new, the existing one
The roof member of the detached building is removed, and then a floor member is provided in a portion where the existing roof member is removed, and a space is formed between the floor member and the newly provided roof member. This is the method of building a single-family building .

According to the present invention, a new roof member is provided above an existing building, and then the roof member of the existing building is removed. Therefore, one or both of the old and new roof members are always provided. Therefore, the occupants can add a new space vertically upward while living.

In addition, a floor member is provided at a position where the existing roof member is removed, and a space is formed between the floor member and the newly provided roof member. A new room can be added vertically above the building.

In addition, a support member whose upper end extends above the roof member of the existing building is erected inside the side wall of the existing building, and a new roof member is provided at the upper end of the support member. Therefore, even where multiple existing buildings are being built closely, new spaces can be created vertically above existing buildings while occupants are living without affecting neighboring buildings. Can be expanded.

A second invention is based on the first invention, and is a method for building a single-family building in which a support member is formed of a steel frame.

In the present invention, since the steel frame is used as the support member, the construction cost is reduced and the construction period is shortened.

A third invention is the first or second aspect of the invention assumes, a conventional single-family buildings 2-story, single-family building detached building after build-is three-story building Is the way.

A fourth invention is a detached building constructed by the construction method according to any one of the first to third inventions.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 7 show an embodiment of the present invention. FIG. 2 is a front view schematically showing a building which changes according to the order of building except for FIG. It is a perspective view which shows a base part.

FIG. 8 is a schematic front view showing another embodiment.

FIG. 1 shows an existing general two-story building, in which a first floor part 1 and a second floor part 2 are provided.
A roof member 3 is provided at a vertically upper portion of the floor portion 2. There are neighbors on the left and right.

In order to add the third-floor portion 9 to such an existing two-story building, first, as shown in FIGS. 1 and 2, the existing building is made of concrete having an inverted T-shaped cross section. Outside the existing foundation 4, the inverse L that matches the existing foundation 4
A new foundation 5 made of concrete in the shape of a letter is united and provided. Note that the foundation 5 need not be continuous,
It may be provided partially.

Next, on the new foundation 5, a steel column 6 made of H-shaped steel having a length corresponding to the height of the first floor portion 1 and extending in the vertical direction is fixedly provided with anchor bolts 7.

At the upper end of the steel column 6, a steel beam 14 extending in the horizontal direction and made of the same H-shaped steel as the steel column 6 is fixed by bolts or the like (not shown).

A steel column 6 made of H-shaped steel having a length corresponding to the height of the second-floor section 2 is fixedly mounted on the upper part of the steel beam 14 with bolts or the like (not shown). Nine steel beams 14 and steel columns 6 are constructed, and the third-floor part 9 is expanded.

As a method of alternately stacking the steel columns 6 and the steel beams 14 as described above, there is a method called “β system method” by Sekisui House Co., Ltd., for example.

Next, the new roof member 8 is connected to the steel beam 1.
4, and a roof such as a color vest 10 is mounted on the upper surface of the roof member 8.

During this time, the occupants can continue to reside on the first floor portion 1 and the second floor portion 2.

Thereafter, the existing roof member 3 shown by oblique lines in FIG. 5 is removed, and the steel beams 11 on the floor of the third floor portion 9 are attached as shown in FIG. 6, and finally, as shown in FIG. The floor member 12 is mounted on the upper part of the steel beam 11 on the floor of the third floor portion 9, and the wall member 13 is mounted on the outside of the steel column 6.

As described above, when the existing roof member 3 is removed, since the new roof member 8 is already provided above the roof member 3, rain or the like may not enter the second floor portion 2. Absent.

Therefore, even during the above-mentioned extension work, the first floor portion 1
And the resident who lives in the second-floor part 2 can continue to live as it is.

When the existing roof member 3 is removed and the floor member 12 of the third floor portion 9 is mounted, the resident of the second floor portion 2 needs to be evacuated. The period for removing and attaching the floor member 12 of the third floor portion 9 is as follows:
Three to four days is enough for a normal house,
Only during this time, the resident living in the second floor part 2 has only to live in the first floor part 1.

In the present embodiment, the side walls of the first floor portion 2 and the second floor portion 2 are doubled, so that the heat insulating effect and the sound insulating effect of the portions are improved.

On the other hand, when the heat insulation efficiency is not always important, the construction cost can be reduced by omitting the wall member 13.

In the present embodiment, since the steel columns 6 and the steel beams 14 are provided outside the existing building, some space is required between the building and the adjacent building. When there is almost no work, workability and livability are slightly reduced, but it is also possible to provide a steel column 6 or the like inside the side wall of an existing building as shown in FIG.

In this embodiment, the steel column 6 is composed of one continuous support. However, in this embodiment, the above-mentioned “β system construction method” can also be used.

The above embodiment is directed to a detached building.
You.

In the present invention, as in the above embodiment, the existing building is a two-story building, and it is optimal to add this building to a three-story building. The object is a one-story building, which can be expanded to a two-story or three-story building, or an existing three-story building can be expanded to a four-story building or more.

[0035]

EFFECTS OF THE INVENTION] A first aspect of the present invention, after providing the upper roof member of an existing single-family building new, the one existing units
Since the roof member of the building is removed, one or both of the old and new roof members are always provided, so that the occupants can add a new space vertically upward while living. .

In addition, a floor member is provided at a position where the existing roof member is removed, and a space is formed between the floor member and the newly provided roof member. A new room can be added vertically above a detached building.

Therefore, it is not necessary to remove the existing building as in the prior art, so it is economical (according to a certain calculation, the cost can be reduced by about 45%) and industrial waste which is a problem. Can be reduced as much as possible.

Further, since it is not necessary for the resident to relocate even temporarily, the inconvenience and uneconomical aspects of living due to relocation are eliminated.

Further, even in a place where a plurality of existing buildings are closely built, a new structure is provided vertically above the existing buildings while occupants are living without affecting adjacent buildings. Another effect is that the space can be expanded.

In the second invention, since a steel frame is used as the supporting member, the construction cost is reduced and the construction period is shortened.

In the third invention, the existing single-family building is a two-story building, and the single-family building after extension is a three-story building.

The fourth invention has the same effect as any one of the first to third inventions.

[Brief description of the drawings]

FIG. 1 shows one embodiment of the present invention, and is a schematic front view of a first step.

FIG. 2 is a perspective view showing a basic portion of one embodiment of the present invention.

FIG. 3 shows one embodiment of the present invention, and is a schematic front view of a second step.

FIG. 4 shows one embodiment of the present invention, and is a schematic front view of a third step.

FIG. 5 is a schematic front view of a fourth step, showing the embodiment of the present invention.

FIG. 6 shows one embodiment of the present invention, and is a schematic front view of a fifth step.

FIG. 7 shows one embodiment of the present invention, and is a schematic front view of a sixth step.

FIG. 8 is a schematic front view showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st floor part 2 2nd floor part 3 Roof member (existing) 4 Existing foundation 5 New foundation 6 Steel column (support member) 7 Anchor bolt 8 Roof member (new) 9 3rd floor part 10 Color vest 11 Steel beam (support member) 12 floor member 13 wall member 14 steel beam (support member)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 23/02

Claims (4)

(57) [Claims] [Claim 1] Living along the vertical direction of a single-family building without removing all of the existing single-family building
Detached house with newly added space at the top while the residents live
In construction method of a building, interruption of existing single-family buildings
Inside the existing foundation whose surface is inverted T-shaped, it matches the existing foundation
The new foundation of the inverted L-shape
By standing the support member, the inside of the side wall near the existing single-family construction <br/> Built thereof, the upper end is erected a support member extending to above the roof member of the existing single-family buildings by building a new roof member to the upper end of the support member, after providing a roof member to a new over the existing single-family buildings, to remove the roof member of the existing single-family buildings, then this existing A single-family building , wherein a floor member is provided at a portion where the roof member is removed, and a space is formed between the floor member and the newly provided roof member .
The method of construction. 2. A support member the method of building detached building according to claim 1, which is formed by steel. 3. Existing single-family buildings a 2-story, a method of building detached building according to claim 1 or 2 detached buildings after build-is 3 stories. 4. A single-family building constructed by the building method according to claim 1.