JPS62189232A - Connection structure of pillar and beam - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a joint structure of columns and beams constituting the frame of a building.

Conventional technology Conventionally, when constructing a steel frame using columns and beams, it is common to weld a joint plate to the upper end of the column and fasten the end of the beam to this joint plate with bolts, etc. .

Problems to be Solved by the Invention In the above-mentioned conventional joint structure, if the joint plate is welded to the column on-site, the number of man-hours for on-site construction will increase significantly;
The joining plate must be welded to the pillar in advance and then transported to the site.However, if the joining plate is welded to the pillar and made to protrude, the component becomes larger, transportation costs increase, and IT costs increase. Therefore, there are drawbacks that make on-site work difficult.

This invention eliminates these drawbacks and makes the components smaller so that they can be easily transported and handled on site.
The purpose is to provide a joint structure for beams.

Means for Solving the Problems In order to achieve the above object, the present invention uses a hollow column (5
), insert the protrusion (17) on the lower surface of the joint member (16), fit the lower end of the cylindrical boss (11) onto the protrusion (17) on the upper surface of the joint member (16), and stack the cylinder. state (
11) Tighten and fix the cylindrical boss (11) with the through bolt (9) inserted into the boss, and fix the end of the beam (36) to the joining member (13) that protrudes laterally from the cylindrical boss. It is characterized by

The working joint members (13) (14) are the cylindrical boss (11)
(12), the size of each member is less likely to increase compared to when it is attached to the pillar (5) in advance.

Further, by rotating the cylindrical bosses (11) and (12), the orientation of the joining members (13) and (14) can be changed arbitrarily. Additionally, the coupling member (16) supports horizontal shear forces.

EXAMPLE Below, the structure of the present invention will be explained based on an illustrated example in which the structure of the present invention is implemented on an L-shaped corner. In FIGS. An anchor bolt buried in the foundation (1), which connects the channel steel base (3) installed on the cloth curtain 1 (1) to the flange (4) on the lower side.
Fix the part with this anchor bolt (2).

(5) is a pillar made of steel pipe, and an L-shaped board (6) is fixed to the lower end of this pillar (5).
is fixed to the upper flange (8) of the foundation (3) with bolts (7), and the column (5) is erected. (9) is the pillar (5
), the lower end of the through bolt (9) passes through the board (6) and the upper flange (8), and the lower end of the through bolt (9) passes through the board (6) and the upper flange (8). It is supported by a nut (10) that is screwed into the hole so that it does not fall out upwards. (11) (12) is
It is a pair of upper and lower cylindrical bosses, and this cylindrical boss (11) (1
2) each have one joint plate (13) (14
) is vertically welded at one end.

A plurality of bolt holes (15) (15), . . . are formed in advance in each joining play 1- (13) (14).

(16) is a pillar (5) and a cylindrical boss (11) (12
), and has pillars (5) and cylindrical bosses (11) (12) on both its upper and lower surfaces.
) with a slightly smaller outer diameter than the inner diameter of the protrusion (17
) (17) are integrally formed.

In such a structure, the pillars (5
), attach one coupling ring (16) by inserting its lower protrusion (17), and then attach the lower end of the lower cylindrical boss (12) to its upper protrusion. (17) and stack the cylindrical bosses (12). Furthermore, another joint ring (16) is similarly inserted and attached to the upper part of this lower cylindrical boss (12), and the joint ring (1
6) To the upper protrusion (17), insert the second upper side cylindrical boss (
11) Fit the bottom ends to the outside and stack. A similar joint ring (16) is inserted and attached to the upper end of the cylindrical boss (11) on the upper side, and each of these joint rings (16)
(1B) (16) and cylindrical boss (11) (12)
passing through the interior and protruding the upper end of the through bolt (9);
A long nut (18) screwed onto the upper end of the through bolt (9)
The respective cylindrical bosses (11) and (12) are tightened and fixed. At that time, each joint plate (13)
(14) are normally set so that they are perpendicular to each other according to the angle of the corners, but for example, in the case of narrow spaces, there are cases where it is not possible to take the corners at right angles. In this case, each cylindrical boss (11) (12) is rotated horizontally and set at an appropriate angle, either acute or obtuse.

Each cylindrical boss (11) (1
2) (13) and (14) have a pair of angled upper web members (21) along their upper edges.
) (21) is the joining plate (13) (14
), and this web material (21)
The bolt holes (23) (23) formed in the vertical piece (22) (22) of (21) and the joining plate (13)
) C14) upper side bolt hole (15) (15
)...hebol) (24) and insert the web material (
21) (21) Join the ends.

Also, along the lower edge of (13) (14) a similar pair of angled web members (25)
(25) are connected in the same way. As shown in Figure 2 (26
) (27) are a vertical bundle material and a diagonal bottom material, and these bundle materials (26) and bottom material (27) are inserted between the lower web materials (21) and (25), respectively. Bolt (2
8) and attach it while joining, thereby creating a lattice beam (
36).

(29) is a pillar for the second floor with a board (30) fixed to its lower end, and the lower end of the pillar (29) is externally connected to the upper protrusion (17) of the uppermost joint ring (16). At the same time, bolts are inserted into the bolt holes (33) and (34) formed in the horizontal pieces (32) of the substrate (30) and the upper web members (21) and (21) to fix them. In addition, the through bolt (35) inserted into the second floor column (29) is attached to a long bolt (18) whose lower end is screwed into the upper end of the first floor through bolt (9). This column (2
9) A cylindrical boss is stacked on the upper end in the same manner as above.

The above example shows the case where it is implemented at the corner of an L shape, but
For example, in the case of a T-shaped corner, as shown in FIG.
A joining plate (14) protruding in the opposite direction to the shown joining plate (14) is welded, and the beam, that is, the web material (21) <25) is connected to this. In addition, in the case of a structure in which the beams connected to rejoining play 1- (14) (14) are not necessarily aligned on a straight line, each joining play (14) (14) is welded at an angle. This is shown in Figure 4. In the above embodiment, the lower end of the through bolt (9) is fixed to the base (3), but the upper end of the column (5) may be fixed.

Effects of the Invention According to this invention, the connecting member is made to protrude to the cylindrical boss stacked at the upper end of the column, and the end of the beam is connected to this connecting member. Therefore, when such a connecting member is made to protrude from the upper end of the column, Compared to the above, the pillars do not become large and can be easily transported. Similarly, since each member is miniaturized, processing in a factory is easy, and these members can be easily coated with fireproof coating such as concrete or ceramic. Furthermore, the weight of the members is reduced, making them easier to handle on site and improving work efficiency. Furthermore, each cylindrical boss can be rotated horizontally to change the angle of the joining member, so if the corner cannot be squared, such as in a narrow space, the angle of the joining member can be changed as desired. can be changed, and therefore, there is an advantage that there is no need to attach the joining member at a precise angle in accordance with such an angle in advance.

Furthermore, in the present invention, since the protrusion of the joint member is inserted into the joint between the cylindrical boss and the column or between the cylindrical boss and the cylindrical boss, this member supports the shearing force in the horizontal direction. A product with high strength can be obtained.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view of main parts showing an embodiment of the present invention, and FIG.
This figure is an exploded perspective view of the main part, and FIGS. 3 and 4 are perspective views showing modified examples of the cylindrical boss. (5)...Column, (9)...Through bolt, (11)
(12)...Cylindrical boss, (13) (14)...
・Joining plate, (16)...Joint member, (17)・
...Protrusion, (36)...beam. Patent applicant Sekisui House Co., Ltd. Representative Patent Attorney
Hisayuki Tarumoto Figure 3 Figure 4

Claims (1)

[Scope of Claims] 1. The protrusion on the lower surface of the joint member is inserted into the upper end of the hollow column, and the lower end of the cylindrical boss is also fitted externally to the protrusion on the upper surface of the joint member and stacked, and the through hole inserted into the cylindrical boss is stacked. A joint structure of a column and a beam, characterized in that the cylindrical boss is tightened and fixed with a bolt, and the end of the beam is fixed to a joining member that protrudes laterally from the cylindrical boss. 2. Insert the protrusion on the lower surface of the ring-shaped joint member into the upper end of the cylindrical boss stacked on the upper end of the column, and similarly fit the lower end of another cylindrical boss onto the protrusion on the upper surface of this ring-shaped joint member and stack it up;
The column-to-beam joint structure according to claim 1, wherein each cylindrical boss is tightened and fixed by a through bolt inserted through the cylindrical boss and the joint member.