JPH10292556A - Building column material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost by a method wherein the upper and the lower ends of a column material main body formed of a square steel material are compressedly squashed by pressing and thereby compressedly squashed shaftlike parts are formed coaxially, and furthermore spaces for attachment and detachment of bolts and column material attaching plates are provided at the peripheries of the shaftlike parts. SOLUTION: A column material 11 is made up of a column material main body 12 formed of a square steel material and column material attaching plates 16 provided at the faces of the upper and the lower ends of the column material main body 12. Then, the upper and the lower ends of the column material main body 12 are compressedly squashed by pressing and thereby compressedly squashed shaftlike parts 14 composed of four projecting parts in an approximately cross-shaped section are coaxially formed. Four spaces 15 for attachment and detachment of bolts are provided at places between opposite side faces of the projecting parts and column material attaching plates 16 each having a plurality of bolt holes are welded to the faces at the ends of the upper and the lower compressedly squashed shaftlike parts 14. Then, the column material attaching plate 16 at the upper end is fitted to the underside of the flange 2a of an upper beam member 2 while the column material attaching plate 16 at the lower end is fitted to a lower beam member 3 and fixation is made with bolts 10. Therefore, a sufficient strength can be developed with works for attachment made easy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building column made of square steel.

[0002]

2. Description of the Related Art Various lightweight sections are used in buildings such as houses having a steel structure, and square pillars are generally used as columns, and H-sections are used as beams. (A) of FIG.
Shows a state in which a conventional columnar member 1 made of a square steel member is bolted to upper and lower beam members 2 and 3 made of an H-shaped steel. When attaching the column member 1 made of such a square steel material to the beam members 2 and 3, bolts cannot be attached with the square steel material as it is, so it is necessary to attach a rectangular mounting plate with bolt holes to the upper and lower ends of the square steel material. There is. In this case, if the mounting plate is formed to be larger than the diameter of the rectangular steel material and is mounted on the upper and lower ends of the rectangular steel material in a flanged manner, the mounting area is widened and protrudes from the beam members 2 and 3,
In addition, there is an inconvenience such as hitting a wall plate or the like attached to the pillar 1.

Accordingly, as shown in FIG. 8A, a pillar 1 made of a rectangular steel material is connected to a pillar body 4.
, And bolt mounting blocks 5 and 5 attached to both upper and lower ends thereof, and both blocks 5 and 5 are bolted to the upper and lower beam members 2 and 3, respectively. Each of the bolt mounting blocks 5 has a rectangular welding seat plate 6 and a mounting plate with bolt holes 7a corresponding to the cross-sectional shape of the column body 4, respectively, as shown in FIGS. 7 and a pair of angle members 8 for forming a bolt attachment / detachment space interposed between the two plates. The welding seat plate 6 is welded to each of the upper and lower end surfaces of the column member main body 4 to form the pair of angles. One end of each of the angle members 8 and 8 is welded to the outer end surface of the welding seat plate 6 with the members 8 and 8 aligned in a cross shape in plan view, and a bolt hole 7a is provided on the other end of each of the angle members 8 and 8. Mounting plate 7
Are welded to form four bolt attachment / detachment space portions 9 by the two angle members 8, 8 interposed between the two attachment plates 7, 7,
The bolt holes 7 a of the mounting plate 7 are opposed to the respective spaces 9. According to such a column member 1, when attaching to the upper and lower beam members 2 and 3, the bolt attaching / detaching space portion 9 of each block 5 is used.
Each bolt 10 can be screwed from the bolt hole 7a of the mounting plate 7 into the screw hole of each of the upper and lower beams 2 and 3, and can be removed.

[0004]

However, in the conventional column member 1 as described above, it takes much time and effort to manufacture and assemble the bolt mounting blocks 5 and 5 connected to both ends of the column main body 4 by welding. However, there is a problem that the cost of the pillar 1 is high. Therefore, the present invention
It is an object of the present invention to easily manufacture a pillar having a bolt attaching / detaching space similar to a conventional pillar at both ends of a pillar body, and to reduce the cost thereof.

[0005]

According to a first aspect of the present invention, there is provided a column material for building according to the present invention, wherein upper and lower ends of a column material body made of a rectangular steel material are crushed by press working, and each end has a required sectional shape. Are formed concentrically, and a space 15 for attaching and detaching bolts is formed on the outer periphery of the crushed shaft 14, and a plurality of bolt holes 1 are formed in the end face of each of the upper and lower crushed shafts 14.
A column material mounting plate 16 having 6a is fixed.

According to a second aspect of the present invention, in the column material for a building according to the first aspect, each of the crushing shaft-like portions is formed in a substantially cross-shaped cross section including four ridges. A bolt attaching / detaching space portion 15 is formed between the opposing side surfaces.

According to a third aspect of the present invention, in the pillar for building according to the first aspect, each of the crushed shaft portions 24 is formed in a hollow shape having a substantially cross-shaped cross section including four ridges 23. Strip 23
Are characterized in that a bolt attaching / detaching space portion 25 is formed between the opposing side surfaces.

According to a fourth aspect of the present invention, in the column material for a building according to the second or third aspect, of the rectangular column main bodies 12 and 22 composed of the flat wall portion a and the corner portion b, the extension of the flat wall portion a. Are formed so that the four protruding ridges 13, 23,... Come into contact with each other, whereby the respective bolt attaching / detaching spaces 15, 25 are formed on extensions of the respective corners b. And

According to a fifth aspect of the present invention, in the column material for construction according to the first aspect, each of the crushing shaft portions is formed in a substantially cylindrical shape, and an annular bolt attaching / detaching space portion 35 is formed on the outer periphery of the cylindrical shape. It is characterized by having.

[0010]

FIG. 1 shows a pillar 11 according to an embodiment of the present invention. The column member 11 includes a column member body 12 made of a square steel member and column member mounting plates 16 attached to upper and lower end surfaces of the column member body 12, respectively. Crushed by press working to form concentrically crushed shafts 14 of four ridges 13 and having a substantially cross-sectional cross section, and four bolts attached and detached between opposing side surfaces of these ridges 13. Space 1
.. Are formed, and a column material mounting plate 16 having a plurality of bolt holes 16a is fixed to the end surfaces of the upper and lower crushed shaft portions 14 by welding, thereby forming a column as shown in FIG. The material 11 is formed. FIG. 3 shows the crushed shaft 1
4 is a cross-sectional view, and FIG.

As can be seen from FIGS. 2 and 3, each of the crushing shafts 14 of the column body 12 has four ridges 13.
Are four of four flat wall portions a forming the prismatic column main body 12 and four corner portions b between the flat wall portions a.
Are formed so as to be respectively located at the center portions in the width direction on the extensions of the two flat wall portions a..., Whereby each bolt attaching / detaching space portion 15 is formed on the extension of the corner portion b of the column member body 12. Will be.

In order to manufacture the column material body 12 of the column material 11, a rectangular steel material having a length corresponding to one of the column materials 11 is used, and each end of the rectangular steel material is formed into a plurality of pieces over a required length. 4 ridges 1
3 are crushed into a substantially cross-shaped cross section so that each of the four flat walls a of the rectangular column main body 12 is located at the center in the width direction on the extension of the four flat walls a. The column member main body 12 as shown in FIG. This pillar material body 1
As another method of forming 2, a rectangular steel material having a length corresponding to two columns 11 is used, and a longitudinally intermediate portion of the rectangular steel material is gradually extended by a pressure forming roller over a required length. After being squeezed and crushed into a substantially cruciform cross section, the middle portion of the crushed portion is cut to form a crushed shaft portion 14 at each of the upper and lower ends and a bolt attaching / detaching space portion 15 at four locations on its outer periphery. . Can be manufactured simultaneously.

The column mounting plate 16 is formed of a steel plate having a required thickness into a square shape having a size corresponding to the cross-sectional shape of the column main body 12, and is formed at each of the upper and lower ends of the column main body 12. Bolt holes 161a are provided at positions corresponding to the four bolt attaching / detaching spaces 15, respectively.

In using the column member 11 having the above-described configuration, as shown in FIG. 7, the column member 11 is disposed between the upper and lower beams 2 and 3 made of H-section steel, and the upper end thereof is used. Of the lower beam 3 is brought into contact with the upper surface of the flange 3a of the lower beam 3 while the lower column 11 is in contact with the lower surface of the flange 2a of the upper beam 2. On each of the upper and lower ends, the bolt holes 7a of the column member mounting plate 16 and the bolt holes on the side of the beam members 2 and 3 are utilized by using the respective bolt attaching / detaching spaces 15 formed around the crushed shaft portion 14. (Not shown)) and fastened with nuts. In this case, a spacer 17 having a required thickness is provided between each column mounting plate 16 and the flange 3a of each beam 2,3.
May be interposed.

In this pillar 11, since each bolt attaching / detaching space 15 is formed as an extension of the corner b of the pillar main body 12, see FIGS. 2, 4 and 7. As will be understood, when the column material mounting plate 16 is mounted on the flange 2a of each of the beams 2 and 3 made of H-section steel,
Two bolt attaching / detaching spaces 15 are respectively located on the front and rear sides of the third web 2b, so that two bolts 10 can be used on two opposing sides of the column mounting plate 16. By the way, each bolt attaching / detaching space 1
Assuming that the space 5 is formed on the extension of the flat wall portion a of the pillar body 12, two bolt attaching / detaching spaces 15 are located along the web 2b of each of the beam members 2 and 3, so that this web 2
Only one bolt attaching / detaching space portion 15 is located on each of the front and rear sides with respect to b, so that the bolt 10 cannot be used in the two bolt attaching / detaching space portions 15 located along the web 2b.

Further, in the column member 11, since the upper and lower crushing shaft portions 14 of the column member main body 12 are formed in a substantially cross-shaped cross section, the column member 11 is compressed and bent despite its reduced cross-sectional area. It has a sufficient mechanical strength and is particularly suitable when the length of the crushing shaft 14 is relatively short.

FIG. 5 shows a pillar 21 according to another embodiment of the present invention. Each of the crushing shafts 14 of the pillar 11 shown in FIGS. (In a state where the inside is closed), whereas the column main body 22 of the column 21 is
Is characterized in that each crushing shaft portion 24 is formed in a hollow shape having a substantially cross-shaped cross section composed of four ridges 23. For other configurations, the column member 11 shown in FIGS.
The configuration is exactly the same. The space for bolt attachment / detachment formed between the opposing side surfaces of each ridge 23 is indicated by reference numeral 25.

According to the pillar member 21 shown in FIG.
Since each of the crushable shaft portions 24 is formed in a hollow shape having a substantially cruciform cross section composed of four projecting ridge portions 23..., The sectional area of the crushable shaft portion is larger than that of the solid crushable shaft portion 14. Therefore, when the length of the crushing shaft portion 24 is increased, for example, as in the case of a rectangular steel column used for a three-story house, sufficient strength against buckling can be exhibited.

FIG. 6 shows a pillar 31 according to still another embodiment of the present invention.
Is characterized in that each crushing shaft portion 34 is formed in a substantially columnar shape, and an annular bolt attaching / detaching space portion 35 is formed on the outer periphery of the column. According to such a column 31, each of the crushed shaft portions 34 has sufficient strength, and the bolt mounting / dismounting space portion 35 is formed in an annular shape around the crushed shaft portion 34. The space 35 can be made as large as possible, and the bolt mounting work becomes easy.

[0020]

According to a first aspect of the present invention, there is provided a column material for construction comprising a column material body made of a rectangular steel material and column material mounting plates attached to both upper and lower ends thereof. Each end is crushed by press working, and a crush shaft portion having a required cross-sectional shape is formed concentrically at each end, and a bolt attaching / detaching space portion is formed on an outer peripheral portion of the crush shaft portion. Since the column mounting plate having a plurality of bolt holes is fixed to the end face of each crushed shaft-shaped portion,
Compared with the conventional type of building pillars, the number of members is smaller, the welding seat plate and a pair of angle materials for forming the bolt attachment / detachment space can be omitted, and welding work for fixing them to the pillar body becomes unnecessary. This makes it easier to manufacture the column material, and can reduce the cost.

According to the second aspect, since the upper and lower crushing shaft portions of the column main body are formed in a substantially cross-shaped cross section, the cross-sectional area is reduced at the end of the column main body forming the crushing shaft portion. Nevertheless, it has sufficient mechanical strength to resist compression and bending, and is particularly effective when the length of the crushed shaft is relatively short.

According to the third aspect, each of the crushing shafts is formed in a hollow shape having a substantially cruciform cross section composed of four ridges, so that the crushing shafts have a solid cruciform cross section. As a result, the cross-sectional area of the crushed shaft is increased, and therefore, particularly when the length of the crushed shaft is long, sufficient strength against buckling can be exhibited.

According to the fourth aspect of the present invention, four ridges are formed on the extension of the flat wall portion of the rectangular columnar body composed of the corner portion and the flat wall portion so that each bolt can be attached and detached. Since the space for use is formed on the extension of each of the corners, when the column material mounting plate is attached to the flange of the beam made of H-section steel, the beam is sandwiched between the front and rear sides of the web of the beam. Two bolt mounting / demounting spaces will be located, so that two bolts can be used on two opposite sides of the column mounting plate, thereby properly bolting the column to the beam. it can.

According to a fifth aspect of the present invention, each of the crushing shafts is formed in a substantially cylindrical shape, and when an annular bolt attaching / detaching space is formed on the outer periphery of the cylinder, each of the crushing shafts is formed. In addition to having sufficient strength, the bolt attaching / detaching space is formed in an annular shape around the crushed shaft portion, so that the bolt attaching / detaching space can be made as large as possible, and the bolt mounting work becomes easy. .

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a column main body and a column mounting plate of a building column according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the building column material in a state where a column material mounting plate is attached to a crushed shaft portion of the column material main body.

FIG. 3 is a cross-sectional view of a crushed shaft-shaped portion in the building column material.

FIG. 4 is a plan view of the same building column material.

FIG. 5 is an exploded perspective view showing a column main body and a column mounting plate of a building column according to another embodiment of the present invention.

FIG. 6 is a perspective view showing a pillar main body of a building pillar according to still another embodiment.

FIG. 7 is a perspective view showing a usage state of the building column shown in FIGS.

8 (A) is a perspective view showing a state of use of a conventional building column, FIG. 8 (B) is a perspective view showing a column main body of the building column, and FIG. 8 (C) shows a bolt mounting block. It is an exploded perspective view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conventional building column material 2, 3 Beam material 11 Building column material 12 Column material main body 13 Ridge part 14 Crush shaft part 15 Bolt attaching / detaching space part 16 Column material mounting plate 21 Building column material 22 Column material main body 23 Protrusions 24 Crushed Shafts 25 Bolt Mounting / Removing Space 31 Building Columns 32 Column Main Body 34 Crushed Shafts

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Shinichi Hori 3-26, Showa Minami-dori, Amagasaki-shi, Hyogo Prefecture Amagasaki Matsumoto Building New Building 4th Floor 401 Kantoku Metal Co., Ltd.

Claims (5)

[Claims] 1. An upper and lower end of a columnar body made of a rectangular steel material is crushed by press working, and a crushed shaft having a required cross-sectional shape is formed concentrically at each end and the crushed shaft is formed. A column material for construction, in which a bolt attaching / detaching space portion is formed in an outer peripheral portion of the member, and a column material mounting plate having a plurality of bolt holes is fixed to end surfaces of upper and lower crushed shaft portions. 2. The crushing shaft-like portion is formed in a substantially cross-sectional shape including four ridges, and a space for bolt attachment / detachment is formed between opposing side surfaces of each ridge. The column material for construction according to 1. 3. Each of the crushing shaft-like portions is formed in a hollow shape having a substantially cruciform cross section composed of four ridges, and a bolt attaching / detaching space is formed between opposing side surfaces of each of the ridges. The building column material according to claim 1. 4. A rectangular column material body comprising a flat wall portion and a corner portion, wherein the four ridges are formed so as to extend on an extension of the flat wall portion. The building column material according to claim 2, wherein the pillars are formed on extensions of the corners. 5. The architectural column material according to claim 1, wherein each of the crushing shaft-like portions is formed in a substantially cylindrical shape, and an annular bolt attaching / detaching space portion is formed on an outer periphery of the cylindrical shape.