JPH04265337A - Device for joining column and beam - Google Patents

Abstract

PURPOSE:To reduce the manufacturing cost by dividing a beam joining cylindrical body into two upper and lower parts to connect them with a connection member, welding the top and bottom ends of the cylindrical body to upper and lower columns and, at the same time, joining the front ends of brackets welded to the cylindrical body to a beam with bolts. CONSTITUTION:A beam joining cylindrical body 3 is divided into two upper and lower parts and the bottom end of an upper column 1 is welded to the upper end of one cylindrical body 3 to weld a lower column 2 to the bottom end of the other cylindrical body 3. The upper and lower cylindrical bodies 3 are connected between the cylindrical bodies 3 through a connection member 8, and brackets 7 are fixed to the outsides of the cylindrical bodies 3 to weld plates 15 are welded. After that, a weld plate 10 forming bolt holes 11 is welded to the end of a beam 9, and the weld plate 10 is brought into contact with the sides of the cylindrical bodies 3 to fix with high strength bolts. Accordingly, a joining device can be manufactured at a low cost by making use of the same joining cylindrical body.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for joining a column mainly made of square steel pipes and a beam made of H-beam steel, and particularly relates to an apparatus for joining columns made of square steel pipes with bolts.

0002

[Prior Art] There are two ways to connect a beam to the side of a column with bolts: one is to screw the end of the beam directly to the side of the column with a bolt, and the other is to attach a bracket to the side of the column and attach the bracket to the side of the column. There is a method of bolting the end of the beam to the end of the beam. In this case, if the wall thickness of the column is not large, the strength of the joint will be insufficient, so use a thick-walled joint cylinder such as cast steel or one equipped with a diaphragm for this joint. However, it is being considered to connect beams directly or indirectly to this. For example, Japanese Patent Publication No. 61-58620 discloses a device in which such a thick cylindrical body is used and a bolt is screwed into a screw hole formed in the cylindrical body for joining.

0003

[Problem to be Solved by the Invention] However, in the above-mentioned conventional joining device using a joining cylinder, when beams with different cross-sectional dimensions are used, the size of the bracket must be changed accordingly. However, it is also necessary to replace the joining cylinder itself. Therefore, in order to accommodate such changes, joining cylinders of different dimensions must be used, which has the disadvantage of increasing the number of types of joining cylinders. In particular, the production cost of this joining cylinder is high because it uses compressed walls or a diaphragm to ensure the strength of the joining part, and it is uneconomical to prepare a large number of such expensive parts. be.

[0004] The present invention has been made with the aim of eliminating such conventional drawbacks.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a column in which a beam joint cylinder is integrally interposed in the beam joint portion of a steel pipe column, in which the beam joint cylinder is arranged vertically. The lower end of the upper column is welded to the upper end of one cylinder, and the lower pillar is welded to the lower end of the other cylinder, and a connecting member is interposed between the cylinders to connect each cylinder. The end of the bracket made of H-shaped steel is fixed so as to straddle the outer surface of each cylindrical body, and the joint plate at the tip of the bracket and the joint plate at the tip of the beam are joined with bolts.

[0006]

[Example] In Fig. 1, numerals 1 and 2 are pillars made of square steel pipes that are divided into upper and lower halves at the beam joint. Cylindrical body 3, 3
is interposed. As shown in FIG. 2, the joining cylinder 3 is made of a rectangular cylinder having a wall pressure greater than that of the pillars 1 and 2, and a diaphragm 4 is integrally formed between the upper and lower sides thereof. Further, at both upper and lower ends of the joining cylinder 3, a small diameter part 6 is formed by a stepped part 5 formed on the outer periphery, and the ends of the pillars 1 and 2 are fitted onto the small diameter part 6, so that the pillar 1, The end face of the column 2 and the stepped portion 5 are welded to be integrated with the columns 1 and 2.

Reference numeral 8 denotes a connecting member of the present invention made of shaped steel pipes having the same cross section as the columns 1 and 2. The upper end of this connecting member 8 is connected to the small diameter portion 6 at the lower end of the joining cylinder 3 on the upper side. It is externally fitted onto the small diameter part 6 at the upper end of the lower joining cylinder 3, and the step part 5 and the end face of the connecting member 8 are welded in the same manner as described above, and both the joining cylinders 3 are connected via this connecting member 8. are connected. 7 is a joining bracket made of H-shaped steel, and its upper flange 12 is brought into contact with the upper joining cylinder 3, and the lower flange 13 is brought into contact with the lower joining cylinder 3, so that these can be joined. It is welded and fixed so as to straddle the cylinder body 3. The outer surface of the connecting member 8 is substantially flush with the outer surface of the joining cylinder 3, and the web 14 of the bracket 7 may be welded to this connecting member 8. Furthermore, a thick joining plate 15 is vertically welded to the tip of this bracket 7, and bolt holes 16 are formed in this joining plate 15.

Reference numeral 9 denotes a beam made of H-shaped steel, and a vertical joint plate 10 is welded to the end thereof, and bolt holes 11, 11, . . . are formed in the joint plate 10. Then, the joining plate 10 is brought into contact with the outer surface of the joining cylinder 3 by aligning these bolt holes 11, 11, . . . with the bolt holes 16, 16, . 16 and is fixedly connected by tightening with a high-strength bolt 17 inserted from the outside.

In the above, when changing the interval between the joining cylinders 3, 3 according to the size of the beam 9 and the bracket 7, use the connecting members 8 of different lengths for each joining. It is only necessary to connect the cylindrical bodies 3 to each other. In this case, although it is necessary to prepare the connecting members 8 of different lengths to match them, the same expensive joining cylinder 3 can be used, and the manufacturing cost can be reduced accordingly. be. In addition, since the joining cylinder 3 and the columns 1 and 2 are welded by fitting the ends of the columns 1 and 2 onto the small diameter portion 6, positioning during welding is easy and highly accurate welding is possible. be able to.

0010

[Effects of the Invention] As described above, in the present invention, in the case where a high-strength beam joining cylinder is used for joining, the joining cylinder is divided into two parts and these parts are connected by a connecting member. When changing the dimensions of the joining cylinder to match the size of the joining bracket to the beam, all you need to do is use the same joining cylinder and change only the connecting members, which eliminates the need for expensive joining cylinders. There is no need to prepare many types of materials, and the overall manufacturing cost is low.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a beam joint according to an embodiment of the invention.

FIG. 2 is an overall vertical cross-sectional view of a joint portion in a beam-joined state.

[Explanation of symbols]

1 Pillar 2 Pillar 3 Cylindrical body for beam joining 7 Bracket 8 Connection member 9 Beam 17 bolts

Claims (1)

[Claims] Claim 1: In a column in which a beam joint cylinder is integrally interposed in the beam joint part of a steel pipe column, the beam joint cylinder is divided into two vertically, and the upper column is attached to the upper end of one of the cylinders. The lower end of the lower pillar is welded to the lower end of the other cylindrical body, and a connecting member is interposed between the cylindrical bodies to join each cylindrical body, and the end of the bracket made of H-beam steel is attached to the outside of each cylindrical body. A device for joining a column and a beam, which is fixed so as to straddle the sides, and a connecting plate at the tip of the bracket and a connecting plate at the tip of the beam are connected with bolts.