JP2000336748A - Erection method of two-story house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable erection of a house capable of coping with an extending building in compliance with the diversification of constitution of a family and versatility of life style, or the like by additionally erecting a second floor section in the house erected while reinforced by a steel frame structure and provided with a high ceiling having a specified layer part. SOLUTION: Columns 2 of a basic building are erected perpendicularly by tightly connecting them to the foundation 1 of the basic building by anchor bolts. A frame is formed on the top of the main column 2 and tie beams of the basic building are attached to the girders 3, 3 of the basic building. Bracings of the basic building are fitted to the girders 3, and the tie beam to form a steel frame structure of the basic building having two-layered height. The girder 12 for extension is laid on brackets of the girder for extension. The fixing hardware for the extension girder and the side face of the girder 12 are fixed by bolts to complete the installation of the girder 12. Likewise, extension small beams 13 are completely installed. Floor plates or the like are fitted onto the girders 12, the small beam 13, and girths 9 of the basic building with wood screws or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a method for building a two-story house.

[0002]

2. Description of the Related Art Conventionally, in the construction of a two-story house, a two-story part is constructed by being stacked on a first-story part. Similarly, when the second floor is to be added, it is built on the existing part.

[0003]

Conventionally, when constructing a house, it is necessary to increase or decrease the floor area of the house in accordance with changes in the family structure and diversification of lifestyles, etc. However, it was difficult to build them step by step while paying attention to the economy.

[0004] In addition, when the second floor is to be added, it is stacked on top of the existing house, so that there are many restrictions such as structural reinforcement on the existing part, and external work such as the roof and outer walls is also performed. Is also disadvantageous.

In addition, when the second floor is added to an existing building, the existing roof is naturally dismantled, and it is difficult to reuse the dismantled materials and the like. Is wasted, and industrial waste also increases.

[0006]

[Means for Solving the Problems]

According to the present invention, there is provided a basic building (hereinafter referred to as a basic building) having a ceiling height of two layers as shown in FIG. 1 and an extension inside the basic building as shown in FIG. It is made up of two floors. The structural strength of the basic building is designed so that it is safe against vertical loads, seismic loads, wind loads, etc., taking into account the additional space of the second floor in advance, so that the second floor can be freely added or reduced. Therefore, it is possible to add the second floor without reinforcing the basic building according to changes in the family structure and diversification of lifestyles.

In FIG. 1, the structure of the basic building is
Since it bears the horizontal force such as the seismic load and wind load of the whole building, the main pillars 2, girders 3, connecting beams 4, and braces 5 are composed of a strong steel structure. In addition, the studs 8 and body gaps 9 on the outer periphery for transmitting the wind load on the outer wall portion, the seismic load on the second floor to be added, and the like to the entire basic building are made of a wooden structure.

[0008] The structure of the second-floor extension portion is mainly made of a wooden structure, and is performed using dedicated hardware inside the basic building. The girder 12 and the girder 13 for the second floor extension are configured as a pair of two to reduce the weight of a single material and rationalize the connection. By reducing the weight of the parts, the workability for future work such as expansion or reduction and the rationalization of parts processing by using hardware are realized, and the safety of the joints and the speed of assembly and disassembly are improved. Realize.

[0009]

DETAILED DESCRIPTION OF THE INVENTION FIG.
FIG. 2 is a perspective view showing a configuration of a basic building. Even if the second-floor part is not added, it can be provided as a house with a high ceiling as it is, which is the basis for effectively using the present invention in the future.

FIG. 2 is a perspective view showing the structure of a building in which a second floor portion is added inside a basic building, with a part of the basic building being omitted. The extension of the second floor can be continued at the same time as the construction of the new basic building, or it can be done as a future extension.

[0011]

FIG. 1 is a perspective view showing the structure of a basic building and FIG. 2 showing a structure in which a second floor is added to a part of the inside of the basic building, with a part of the basic building omitted. In FIG. 1, the main column 2 is fastened to the foundation 1 with anchor bolts (not shown), and the main column 2 is suspended. The beam is rigidly connected to the top of the main pillar to form a frame, and the beams are connected to the beams and attached. Also, a bracing 5 is attached to the girder 3 and the connecting beam 4,
Build a steel frame of a basic building with a height of two layers.

Thereafter, a base 7 is attached to the cloth foundation 6 with an anchor bolt, and a stud 8 is fixed to the base 7 and the girder 3 with metal hardware or the like on the base, and is vertically suspended. At the predetermined position of the second floor extension between the studs, the trunk difference 9 is fixed to the studs 8, 8 with hardware or the like and installed. At that time, the girder 9 is used to expand the girders 12 and
3 to receive the hardware 16, 17, 19, 20 and the like, so as to have a width protruding inward from the inner side of the outer peripheral wall 22, as shown in FIG. Further, the structure of the floor 10 on the first floor will not be described because there is no problem with the conventional construction method.

3 and 4 show a method of expanding the second floor. A main pillar 11 for extension is fixed on a floor 10 of the basic building. At this time, the pillar fixing hardware 14 is fixed to a predetermined position on the floor 10 of the basic building with a wood screw, a bolt, or the like, and a hole 14a corresponding to the metal is formed in a leg of the main pillar 11 corresponding to the metal. Then, they are fitted together and fixed from the side surface of the main column 11 with a wood screw or the like, and the main column 11 is vertically installed. (Wood screws and bolts are not shown)

A part of the top of the main column 11 is machined, and the girder support 15 and the girder fixing bracket 17 are fixed at predetermined positions on the top of the main column with wood screws or the like. 9
Then, the girder fixing hardware 17 is fixed to a predetermined position of the stud 8 or the stud 9 with a wood screw or the like. After that, the girder 12 is mounted on the girder fittings 15 and 16, and the girder fixing hardware 17 and the side surfaces of the girder are fixed with bolts or the like, thereby completing the installation of the girder 12. At this time, the girder connection hardware 18 is provided at a mounting position of the small beam 13 to be described later, and the girder 12 is connected to each other via the hardware 18 to maintain the rigidity of the girder against bending, vibration, and the like.

Similarly, the beam support 19 is fixed at a predetermined position between the beam 12 and the trunk 9 with a wood screw or the like.
0 is fixed to the girders 12 and the studs 9 or the studs 8 with wood screws or the like. Thereafter, the small beam 13 is hung on the small beam holder 19, and the small beam fixing hardware 20 and the side surface of the small beam are fixed with bolts or the like.
The erection of the beam 13 is completed. At that time, small beam connection hardware 21
The small beams are connected to each other via the bridge, and the rigidity of the small beams 13 is maintained.

The girder 12 and the girder 1 made by the above method
3. Attach structural plywood, floorboard, and the like to the body gap 9 with wood screws or the like to complete the expansion of the second floor. The extension girder 12 and the small girder 13 are configured as two pairs to reduce the weight of a single member.
In addition, the simplification and unification of connections made of hardware are performed to improve workability at construction sites.

In the above embodiment, the steel frame portion of the basic building can be made of another material, for example, a reinforced concrete structure or a wooden structure, or a combination thereof, depending on the scale of the building. is there.

Similarly, the wooden structure of the studs 8 and the studs 9 of the basic building is made of a steel structure, or the main pillars 11, the large beams 12, the small beams 13 and the like for extension use lightweight steel frame materials. Alternatively, it is also possible to make them in combination.

FIGS. 6, 7, 8 and 9 show examples of the shape of the metal fitting for the second floor extension. As shown in FIG. 3, the metal fittings for the second floor extension can all be installed from inside the basic building.

[0020]

According to the present invention, when planning a house, first build a basic building to build a house that can accommodate expansion, etc., in accordance with changes in the future family structure and diversification of lifestyles. Is possible. In addition, economical investment for acquiring a home can be selected from temporary and short-term investment to a continuous and long-term investment in the future.

In addition, according to the present invention, by planning a house by dividing the basic building portion and the second-floor extension portion, restrictions on the second-floor portion are structurally reduced. Since it is not dismantled or reinforced, there is little waste of materials and the like, and the construction period is short and economical.

The structure of the second-floor extension part can be mainly determined by considering the life load. Therefore, the attachment of the main pillar, the girder, and the small beam of the extension part can be simplified by using a dedicated extension hardware. Can be easily added or removed. Also, by making the components and hardware that make up the second floor part compatible,
Recycling between buildings made by this method is also possible, which helps to save resources.

[Brief description of the drawings]

FIG. 1 is a perspective view of a frame structure of an embodiment of a basic building.

FIG. 2 is a perspective view of a framed structure of an embodiment in which a second floor is added inside a basic building, with a part of the basic building omitted.

FIG. 3 is a perspective view showing a part of a second-floor extension part of FIG. 2 and an enlarged view of the part, showing a relationship between members;

FIG. 4 is a plan view showing a configuration of members of a second-floor extension portion.

FIG. 5 is a sectional view taken along line AA shown in FIG.

FIG. 6A is a plan view of a main pillar fixing hardware for second floor extension, and FIG. 6B is a vertical sectional view of the center thereof.

FIG. 7 is a perspective view of an embodiment of a girder and a small girder for second floor extension.

FIG. 8 is a perspective view of an embodiment of a fixing hardware for a girder and a small girder for the second floor extension.

FIG. 9 is a perspective view of an embodiment of the connecting hardware of the girder and the girder for the second floor extension.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foundation of basic building 2 Main pillar of basic building 3 Girder of basic building 4 Connecting beam of basic building 5 Brace of basic building 6 Cloth foundation of basic building 7 Base of basic building 8 Stud of basic building 9 Height of basic building Reference Signs List 10 Floor of basic building 10a Enlargement of basic building 11 Main pillar for extension 12 Large beam for extension 13 Small beam for extension 14 Main pole fixing hardware for extension 14a Leg mounting holes for extension of main pillar 15, 16 Extension Girder fittings for extension 17 girder fixtures for extension 18 girder fittings for extension 19 small girder fixtures for extension 20 girder fixtures for extension 21 small girder fixtures for extension 22 outer peripheral wall of basic building 23 Use position of wood screw or bolt

Claims (1)

[Claims] 1. A method of constructing a two-story house by adding a second-floor portion inside a house having a two-story ceiling height reinforced by a steel frame structure.