JP2596323B2 - Expansion columns and connection structure for additional frames - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial application field] In general, when adding a frame to an existing building such as a building with a high floor, such as a mezzanine floor or a corridor,
The present invention relates to expansion columns and connection structures applied to enhance structural strength.

[0002]

2. Description of the Related Art Conventionally, when a mezzanine floor or a corridor is added to a building or the like, a new pillar is newly provided near an existing pillar so as not to adversely affect an existing building, and an independent frame is formed. However, after the expansion, pillars increase in the lower floor space, making it difficult to use as a work space or a living space. Fig. 4 shows an example.
(A) and (b) show. FIGS. 4A and 4B are plan views showing a case where a column for an additional building is newly added to an existing column.

[0003]

When a mezzanine floor or a corridor is added to a building or the like, the existing building can be used as it is.
In many cases, it cannot withstand a load from an additional floor or a load due to an external force such as an earthquake. Therefore, a new pillar will be added near the existing pillar to make an independent frame. in this case,
The lower floor has more pillars, making it inconvenient to use as both a work space and a living space. Therefore, in order to be able to use the pillar without newly adding it, a pillar can be newly installed at the position of the existing pillar. The present invention provides a new column to cover an existing column, and joins the newly-created column and the newly-installed beam to form an independent frame. Provide expansion pillars and connection structure to avoid.

[0004]

When a frame is added on a higher floor of a building having a higher floor, a space is provided between the existing column and the same column so as to include the existing column. It is possible to construct an expansion column while maintaining the space, and to use the space on the lower floor effectively by joining the beam and the outer diaphragm method. Also, when adding a frame to the higher floor of a building with a higher floor,
The column is composed of four reinforced concrete pillars at the same position as the existing column so as to include the existing column, keeping a space between the column and the existing column. Even in reinforced concrete, expansion columns and outer diaphragms can be joined to make effective use of the lower floor space.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1 (a), a new column 1 including an existing column 2 is provided while maintaining a space between the column 2 and the existing column 2. In this example, the column 1 to be newly installed is vertically divided into two parts, and is integrated by combining with bolts at the site to facilitate assembly on site. Fig. 1 (b)
Shown in In addition, the connection structure between the girder 3 and the column is an outer diaphragm 4 type so that a force can be smoothly transmitted from the outside of the column 1 to the opposing girder and independently of the existing column 2, and joined by bolts. Therefore, the present invention can be said to be a pillar to which the expansion joint is applied. Since the outer diaphragm 4 is also welded to the column member 1 in advance at the factory and brought to the site, the outer diaphragm 4 is divided into two parts. However, in order to integrate the column 1 and the diaphragm 4 with high accuracy, a position slightly away from the corner of the column. Then, the diaphragms 4 are bolted to each other. All of these connections can be made by welding. This invention is illustrated in FIG.
FIG. 3 shows a comparison with FIG. FIG. 2 shows a connection structure between the pillar 1 and the girder 3 separately.

[0006] An expansion column made of reinforced concrete is also possible, and the column may be formed as an aggregate of four wall columns while keeping the space with the existing column.

[0007]

The effect of the present invention is that when a new building is added to an existing building with a floor height, the existing pillars are made into a double structure to form an expansion structure, so that a new position in the space on the lower floor can be obtained. The space can be widely used without providing extra pillars.

[Brief description of the drawings]

FIG. 1A is a diagram showing a relationship between an existing pillar and an expansion pillar. (B) It is a cross-sectional view of an expansion pillar.

FIG. 2 is a diagram showing a connection structure between an expansion column and a girder.

FIG. 3 is a plan view when an expansion column is used.

FIG. 4A is a diagram showing an example of a case where a conventional pillar is newly provided. (B) It is a figure which shows another example when the conventional pillar is newly installed.

[Explanation of symbols]

1 ... Expansion pillar, 2 ... Existing pillar, 3 ...
・ Large beam, 4 ・ ・ ・ Outer diaphragm

Claims (2)

(57) [Claims] When an additional frame is installed on a higher floor of a building with a floor height, a pillar is provided at the same position as the existing pillar so as to include the existing pillar, while maintaining a space between the existing pillar and the existing pillar. To build
Expansion columns and connection structure with additional frames, which are joined by beams and outer diaphragms. 2. When a frame is added to a higher floor of a building with a floor height, reinforced concrete is provided at the same position as the existing column so as to include the existing column, while maintaining a space between the existing columns. The expansion column and the connection structure of the extension of the frame, characterized in that the column is constituted by four wall columns made of steel, and the beam and the outer diaphragm are joined together.