JP2002327508A - Skeleton structure for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide skeleton structure for a building that can reduce the weight of a column. SOLUTION: When three bearing wall panels 52 are assembled to a skeleton body 51, two out of three bearing wall panels 52 are arranged on both sides of an H-shape steel which constitutes a large column 30, while one remaining bearing wall panel 52 is disposed in an orthogonal direction to two bearing wall panels 52, 52, and each serves to reinforce the large column 30. That is, the H-shape steel, which constitutes the large column 30, is reinforced by each bearing wall panel 52 parallel in each direction of a span direction of a ridge direction of the building. The large column 30 is thereby reinforced in a well- balanced manner, so that a burden is reduced, and weight is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame structure in a steel structure building.

[0002]

2. Description of the Related Art As an example of a steel structure, a brace is arranged in advance on a diagonal line of a rectangular frame (joint fitting) to form a bearing wall panel. There is a configuration in which the device is incorporated in a rectangular region surrounded by constituent columns and beams. FIG. 9 shows a part of such a conventional frame structure, in which a brace 2 is arranged on a diagonal line of a rectangular frame 1 (only one corner of the frame 1 is shown in FIG. 9). The load-bearing wall panels 3 are provided, and the load-bearing wall panels 3 are arranged in pairs at positions sandwiching the columns 4. The column 4 is made of rectangular steel having a rectangular cross section, and the load-bearing wall panels 3 and 3 are fixed to both side surfaces of the rectangular steel to reinforce the column 4.

[0003]

By the way, in the above-described structure, the reinforcing strength to the column 4 is greatly different between the direction in which the load bearing wall panels 3 and 3 are arranged and the direction orthogonal thereto, and the reinforcing balance is very poor. . For this reason, in order to secure the strength in the direction where the reinforcement is weak, the entire column 4 is enlarged,
There is a problem that the weight increases.

The present invention has been made in view of the above circumstances, and has as its object to provide a building structure of a building capable of reducing the weight of columns.

[0005]

According to the first aspect of the present invention, there is provided a skeleton structure of a building which is provided with a brace on a diagonal line of a rectangular frame. In a skeleton structure of a building constructed by assembling panels in a rectangular area surrounded by columns and beams of the skeleton main body, at least three rectangular areas are located at a connection where the beams are orthogonal to each other in the skeleton main body. It is characterized in that the pillars forming one common side are made of H-shaped steel, and the load-bearing wall panels fitted into the respective rectangular regions are fixed to the respective side surfaces of the H-shaped steel.

According to the structure of the present invention, two of the three load-bearing wall panels assembled in each rectangular area are arranged on both sides of the H-beam forming the column, and the other load-bearing wall panel is , Are arranged in a direction perpendicular to the two load-bearing wall panels to reinforce the H-section steel, respectively. That is, the H-beams constituting the columns are reinforced in each of the beam-to-beam direction and the girder direction of the building by the load-bearing wall panels parallel to those directions. Thereby, the pillar is reinforced in a well-balanced manner, the burden is reduced, and the weight of the pillar can be reduced.

As a configuration for fixing the load-bearing wall panel to the H-shaped steel constituting the above-mentioned column, a bridging member is provided at a plurality of positions in the longitudinal direction of the groove of the H-shaped steel constituting the column in the width direction of the groove. The frame of one load-bearing wall panel is fixed to the bridge member with bolts, and the frame of the other load-bearing wall panel is fixed to the flange of the H-section steel with bolts ( The invention of claim 2). In addition, the beams orthogonal to each other at the connection were formed of a channel steel, an H-section steel, or an I-section steel, and the flange provided on the section steel and the frame of the load-bearing wall panel were fixed with bolts. It may have a structure (the invention of claim 3).

[0008] Further, as a structure of a joint for connecting the beams orthogonally, each beam orthogonal to the joint is formed of a channel steel, an H-section steel, or an I-section steel. Inside the groove provided in the first section steel constituting the beam of the above, a section steel connection fitting is arranged, and the section steel connection fitting is perpendicular to the groove inside the channel wall fitted into the groove. A second form in which a rib wall is integrally provided, and the side and bottom of the channel wall are bolted to the web and flange of the first section steel, and one end of the rib wall constitutes the other beam. The steel web may be fixed by bolts (the invention of claim 4).

[0009] According to this structure, since the ribs are integrally provided on the inner side of the channel wall, the rib and the side wall and the bottom portion of the channel wall reinforce each other. It is difficult to deform even under a large external force. Then, the channel wall is fitted into the groove of the first section steel and fixed by bolts, thereby playing a role of integrating and reinforcing the web and flange of the first section steel. Thereby, it is possible to increase the strength of the connection between the beams made of the shaped steel.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a building to which the present invention is applied will be described below with reference to FIGS.
The building according to the present embodiment has, for example, a two-story structure and is divided into four in the direction of the beam (the left-right direction in FIG. 1), and is a multi-unit housing with a total of eight households 50 in a row at the top and bottom. ing.

FIG. 2 shows a side view of the skeleton of this building. The skeleton body 51 is composed of columns and beams, and is formed in advance in a rectangular area S1 surrounded by the columns and beams. The installed load-bearing wall panel 52 is assembled. Here, as shown in FIG. 3, for example, the load-bearing wall panel 52 is formed by joining channel steel in a frame shape to form a rectangular frame 53, and bracing 54, 54 on both diagonal lines of the frame 53. Make the structure that was passed over. Further, bolt holes 55 are formed through both ends of each channel steel forming the frame 53. The braces 54, 54 may be formed of a flat plate member as shown in FIG. 3, or may be formed of a round bar or an angle material (not shown).

The load-bearing wall panels 52 are indicated by thick lines in FIG. 1, and when looking at each house 50, the two load-bearing wall panels 52, 52 are L-shaped along the four corners of each house 50. Are located in Looking at this in the whole building, at the door border part 96 between the adjacent dwellings 50, 50, the load-bearing wall panels 52 on one side of the L-shape are shared, and the three load-bearing wall panels 52 are formed in a T-shape. The present invention is applied to this portion.

As shown in FIG. 1, the load-bearing wall panels 52 on both flat sides of each dwelling 50 are arranged side by side as shown in FIG. Outside the load-bearing wall rows 56, 56, further, a load-bearing wall row 57 is provided in parallel with the load-bearing wall rows 56. The entire building is sandwiched between a pair of bearing wall rows 58, 58 composed of the bearing wall rows 56, 57, thereby increasing the strength. 1, a balcony 97 is formed between the load-bearing wall rows 56 and 57 shown on the lower side, and a passage 98 connecting the dwellings 50 is provided between the load-bearing wall rows 56 and 57 shown on the upper side. ing.

FIGS. 3 to 8 show details of a portion where the above-mentioned load-bearing wall panels 52 are arranged in a T-shape. In FIG. 3, reference numeral 10 denotes a beam extending along the door border portion 96 (hereinafter, referred to as “door border beam 10” as appropriate for convenience of description). The ends of a pair of beams 20, 20 (hereinafter, appropriately referred to as “girder beams 20”, which are appropriately referred to as “girder beams 20”) extending along the girder direction of the building are vertically connected to both sides of the door beam 10. Thus, a connection in which the beams are orthogonal to each other is configured. And this beam structure is provided in three layers in the whole building, the large pillar 30 is provided between the connections arranged in the up-down direction, and three small pillars 37 parallel to the large pillar 30 are provided. , Each beam 10, 20, extending in three directions from the connection
20 are provided at predetermined intervals. Thus, three rectangular areas S1 surrounded by the pillar and the beam are formed with the large pillar 30 as one common side.

Each of the beams 10, 20 and columns 30, 37 described above.
Are both made of H-shaped steel. Each of the beams 10, 20 and the small pillar 37 is arranged such that the flat surface of the flange F of the H-shaped steel constituting the beam faces the inside of the rectangular area. 52 edges are joined.

Further, a pair of flanges F, F of the H-shaped steel constituting the large column 30 are arranged so as to be aligned in a direction along the door beam 10, and the flat surface of one of the flanges F has a proof stress. It is joined to the edge of the wall panel 52. Further, a bridging member 36 is inserted and fixed to the groove of the H-shaped steel constituting the large column 30 near the end on the side of the connection side. The parts are joined.

Each beam 10, 20 and each column 30, 37
Are formed on the flange F of the H-shaped steel and the bridging member 36 so as to be aligned with the bolt holes 55 formed at the four corners of the load-bearing wall panel 52. And
As shown in FIG. 4, a nut N is welded to the back surface of the bridging member 36 coaxially with the bolt hole. Is fixed to the large pillar 30.

The door beam 10 and the double girder beams 20, 2
0 is linked as follows. That is, FIG.
As shown in FIG. 2, the steel shape connecting metal fittings 40 and 40 are accommodated in both the grooves of the H-shaped steel constituting the door beam 10. 6 is provided with a groove-shaped wall 41 formed in a U-shape along the inner surface of the groove of the H-shaped steel, and is provided inside the groove-shaped wall 41. , And the rib wall 44 that is perpendicular to the groove is welded. Then, as shown in FIG. 5, the bottom and both sides of the channel-shaped wall 41 are fixed to the flange F and the web W of the H-section steel constituting the door-to-door beam 10 by being fastened together.

Further, the both ends of the H-shaped steel constituting the large column 30 are formed so as to cover the opening of the end of the groove in the H-shaped steel.
The fixing plate 32 is fixed. Further, bolts for fixing the shaped steel connection fitting 40 and the flange F of the door beam 10 are also formed through the fixing plate 32 and fastened together.

Further, the H-shaped steel and the shape steel connecting bracket 40 constituting the beam 20 are connected as follows. That is, an H-section steel web W constituting the girder beam 20,
The rib wall 44 of the shaped steel connection fitting 40 is arranged in a straight line with its end faces facing each other, and the plate 3
3 and 33, and apply these plates 33 and 33 to the web W
And the rib wall 44 are bolted together.

Next, the operation and effect of this embodiment will be described. A load-bearing wall panel 52 is attached to the rectangular area S1 provided in the main body 51 as follows. First, as shown in FIG.
1, the load-bearing wall panel 52 is fitted. The bolt holes 55 (see FIG. 3) formed in the load-bearing wall panel 52 are aligned with the bolt holes (see FIG. 3) formed in the flanges F of the door beams 10 and the columns 30, 37, and the bolts 55 Pass the bolt through the hole and tighten the nut N on the other side. At this time,
The groove of the H-shaped steel constituting the door beam 10 and the columns 30, 37 is as follows.
Since it is open to the side, the nut N or the bolt can be held in the groove, and the tightening operation can be easily performed. As described above, the load-bearing wall panel 52 is fixedly fastened to each of the door beams 10 and the columns 30 and 37 with bolts.

Next, as shown in FIG. 7, the load-bearing wall panels 52 are fitted into the two rectangular areas S1 and S1 along the girder beam 20, respectively. Then, the bolt holes 55 (see FIG. 3) formed in the load-bearing wall panel 52 are connected to the girder beams 20 and the small pillars 37.
The bolts are passed through the bolt holes (see FIG. 3) formed in the bridging members 36 provided in the grooves of the large column 30 and the flanges F of the large columns 30. At this time, the groove of the large pillar 30 is closed by the load-bearing wall panel 52, but the nut N is fixed to the back side of the bridging member 36 at a position matching the bolt hole as shown in FIG. Therefore, the tightening operation can be performed simply by turning the bolt.
As described above, since the groove of the H-beam forming the girder beam 20 and the small column 37 is open to the side, it is necessary to hold the nut N or the bolt in the groove and perform the tightening operation. Can be. As described above, the load-bearing wall panel 52 is jointly fixed to each of the girder beams 20 and the columns 30 and 37 with bolts.

In this manner, the three load-bearing wall panels 52
When two of the load-bearing wall panels 52 are assembled to the frame body 51, two of the load-bearing wall panels 52 are disposed on both sides of the H-beam forming the large column 30, and the other load-bearing wall panel 52 is provided with the two load-bearing walls. Arranged in a direction orthogonal to the panels 52, 52,
Each serves to reinforce the pillar 30. That is, the H-section steel constituting the large column 30 is reinforced by the load-bearing wall panels 52 parallel to each other in both the beam-to-beam direction and the girder direction of the building. Thereby, the large pillar 30 is reinforced in a well-balanced manner, the burden is reduced, and the weight is reduced. In other words, the H-section steel is advantageous in terms of weight reduction and simplicity of construction, but has a disadvantage that it is weak against buckling in the column axis direction. However, by integrating with the frame 53 of the load-bearing wall panel 52, Therefore, the difficulty can be solved, and the cross section of the pillar can be used effectively.

Further, in this embodiment, since the shaped steel connecting metal fittings 40 for connecting the beams have a structure in which the rib wall 44 is welded to the grooved wall 41 so as to be integrally provided, the both sides of the grooved wall 41 are provided. In addition, the bottom and the rib wall 44 reinforce each other, and are hardly deformed even when subjected to a large external force. Then, as shown in FIG. 7, the channel wall 41 is fitted into the groove of the H-beam of the door beam 10 and fixed with bolts, so that it is integrated with the web W and the flange F of the H-beam. Serve to reinforce. In addition, in the present embodiment, the shape steel connection fittings 40 are arranged in both the grooves of the H-shaped steel of the door beam 10, and are reinforced in a well-balanced manner. Thereby, the strength of the connection between the beams formed of the H-section steel is increased.

Further, the simplicity of the implementation of the present embodiment will be described below in comparison with the conventional one.
That is, as shown in FIG. 9, in the conventional one, in order to completely separate the inside and outside of the square steel tube wall constituting the column 4, for example, a bolt is passed through the tube wall and a nut is tightened from the back side. Or the nut could not be welded to the back side in advance. On the other hand, in the H-shaped steel constituting the large column 30 of the present embodiment, as described above, the bolt is passed through the flange F and the nut is tightened from the back side, or the bridging member 36 that is The operation of welding the nut to the back side in advance can be easily performed, and the degree of freedom of the connection between the column and the load-bearing wall panel is higher than that of the conventional one.

<Other Embodiments> The present invention is not limited to the above embodiments. For example, the following embodiments are also included in the technical scope of the present invention.
In addition to the following, various changes can be made without departing from the scope of the invention. (1) In the above-described embodiment, the load-bearing wall panels 52 are arranged in the three rectangular areas S1 having the large pillar 30 as one common side. However, in the present invention, at least three common rectangular areas are used. Since the load-bearing wall panels may be fixed to the pillars forming one side, for example, a structure in which four load-bearing wall panels are fixed to the pillars forming one common side of the four rectangular regions may be employed.

(2) In the above embodiment, the load-bearing wall panel 5
2 was fixed to the main body 51 with bolts.
For example, a configuration may be adopted in which the load-bearing wall panel is fixed to the main body by welding.

(3) In the above embodiment, the nut N is fixed to the back surface of the bridging member 36. However, for example, the frame 53 of the load-bearing wall panel 52 may be fixed without fixing the nut N.
Of these, a work hole may be formed in the joint surface to the large column 30, a finger may be inserted through the work hole to hold the nut N, and tighten the bolt. Further, a female screw hole for screwing a bolt to the bridge member 36 may be cut.

(4) The beams 10 and 20 of the above embodiment are H
Although these beams are made of a section steel, these beams may be made of an I-section steel or a channel steel.

(5) In the above embodiment, the load-bearing wall panel 5
The second frame 53 was directly joined to the beams 10 and 20, but between the beam and the frame of the load-bearing wall panel.
For example, a configuration may be adopted in which another member such as concrete is interposed.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of a building according to an embodiment of the present invention.

FIG. 2 is a side view of a building frame.

FIG. 3 is a perspective view showing a structure around a connection;

FIG. 4 is a cross-sectional plan view of a pillar provided at a connection;

FIG. 5 is a perspective view of the connection viewed from obliquely below.

FIG. 6 is a perspective view of a shaped steel connection fitting.

FIG. 7 is a side sectional view taken along the line AA of FIG. 4;

FIG. 8 is a side sectional view taken along the line BB of FIG. 7;

FIG. 9 is a perspective view showing a conventional frame structure.

[Explanation of symbols]

 10, 20 ... Beam 30, 37 ... Column 36 ... Bridge member 40 ... Shaped steel joint fitting 41 ... Channel wall 44 ... Rib wall 51 ... Frame body 52 ... Load-bearing wall panel 53 ... Frame 54 ... Brace F ... Flange S1 ... Rectangular Area W ... Web

Claims (4)

[Claims] 1. A skeleton structure of a building constructed by assembling a load-bearing wall panel in which a brace is arranged on a diagonal line of a rectangular frame in a rectangular region of a skeleton body surrounded by columns and beams. The beam is located at the connection where the beams are orthogonal to each other,
A pillar that forms one side of at least three of the rectangular regions is formed of an H-shaped steel, and a load-bearing wall panel fitted into each of the rectangular regions is fixed to each side surface of the H-shaped steel. Building frame structure. 2. The groove of the H-shaped steel constituting the column,
At a plurality of positions in the longitudinal direction, a bridging member is spanned and fixed in the width direction of the groove, a frame of one of the load-bearing wall panels is fixed to the bridge member with bolts, and a frame of the other load-bearing wall panel is provided. 2. The skeleton structure of a building according to claim 1, wherein is fixed to the flange of the H-section steel with bolts. 3. A beam orthogonal to said connection is formed by a channel steel or H
3. The skeleton structure of a building according to claim 2, wherein the frame structure is made of one of a shaped steel and an I-shaped steel, and a flange provided on the shaped steel and a frame of the load-bearing wall panel are fixed by bolts. . 4. Each of the beams orthogonal to each other at the connection is made of a channel steel, an H-beam or an I-beam, and is provided in a first steel bar constituting one of the beams. Inside the groove, there is provided a shape steel connecting fitting, wherein the shape steel connecting fitting is integrally provided with a rib wall perpendicular to the groove inside a groove-shaped wall fitted in the groove, The side and the bottom of the channel wall are bolted to the web and flange of the first section steel, and one end of the rib wall is bolted to the web of the second section steel constituting the other beam. The frame structure of a building according to any one of claims 1 to 3, wherein: