JPH06212695A - Joining metal of column with beam and joining work - Google Patents

Abstract

PURPOSE:To decrease operating time of a crane by easily and temporarily supporting a beam in a jointing work of a column and a beam through connection of jointing blocks, by providing jointing blocks in which jointing pieces with pierced holes for bolts are protruded at every short distance like comb- teeth, at the end of beam and the side of column respectively and forcing these jointing pieces of jointing blocks to engage with each other to fasten the bolts inserted in the pierced holes. CONSTITUTION:The jointing pieces 3 of jointing blocks 5 at the side of a column 2 have trapezoidal cross sections decreasing in area toward the tops and the jointing pieces 3 of jointing blocks 5 at the end of a beam 1 have trapezoidal cross sections increasing in area toward to the bottoms. When the beam 1 is lifted up and the jointing pieces 3 of the jointing blocks 5 at the end of the beam 1 are forced to engage with the jointing pieces 3 of the jointing blocks 5 at the side of the column 2, the jointing pieces 3 of the jointing blocks 5 at the end of the beam 1 are temporarily supported between the jointing pieces 3 of the jointing blocks 5 at the side of the column 2 so as to put the former pieces between the latter pieces.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal joint for a column and a beam, which is a steel structural material, and a joint construction method in the fields of construction, civil engineering and bridges.

[0002]

2. Description of the Related Art First, the inventor of the present invention devised a metal joint for steel frame structural material which can be joined at one-touch because it can be joined at a few welding spots and bolt tightening spots. Filed as Japanese Utility Model Publication No. 4-62804).

4 to 6 show a beam-column joining method using such a steel-framed structural metal fitting. In the figures, 1 is a beam of a steel frame, 2 is a column of a steel frame, and a through hole through which a bolt penetrates. Bonding pieces 3 having 4 formed therein are provided at small intervals in the shape of comb teeth, and are provided at the end of the flange 1a of the beam 1 and the side surface of the column 2, respectively.

The installation of the metal joint 6 on the beam 1 and the pillar 2 is carried out on the factory side, and the beam 1 and the pillar 2 are shipped and transported with the metal joint 5 as shown in FIG.

At the site, as shown in FIG. 5, the beam 1 is hung between the columns 2 previously built by a crane, and at that time, the joining pieces 3 of the joining hardware 5 are engaged with each other, and the beams 1 and 2 are engaged with each other. As shown in FIG. 5, the high-strength bolt 6 is inserted into the through hole 4 and tightened with a nut so that the beam 1 and the pillar 2 are joined together.
It joins through the bond of each other.

By doing so, the toothed joint pieces 3 of the comb are alternately positioned and meshed with each other,
Moreover, since this meshing is fastened in the orthogonal direction by the high-strength bolt 6, the tooth-shaped joining piece 3 of each comb can transmit 90% or more of the axial force of the bolt due to the two-sided friction.

Further, since each of the joining pieces 3 is subdivided into a comb tooth shape as small as possible, the cross-section axial proof strength of each joining piece 3 is smaller than the frictional force. That is, when each joint piece 3 is given a frictional force by the high-strength bolt 6, its cross-section proof strength is 100%.
As a result, it becomes difficult to separate the metal joints 5 from each other like two books are entwined and combined.

In the illustrated example, the pillar 2 is described as a steel pipe pillar having the inner diaphragm 7, but it may be an H-shaped steel pillar. Further, the joint metal 5 is provided with a base portion 8 on which the respective joint pieces 3 are gathered, and the base portion 8 is welded to the beam 1 or the column 2. However, the base portion 8 may be a series, but as shown in the figure, it is expanded to each joint piece 3. Alternatively, the protruding portion 9 may be provided and the protruding portions 9 may be arranged side by side.

[0009]

However, in the conventional method shown in FIGS. 4 to 6, the suspended beam 1 must be supported by the crane until the joining pieces 3 are fastened with the high-strength bolt 6. Therefore, the operating time of the crane will increase accordingly.

The object of the present invention is to eliminate the disadvantages of the above-mentioned conventional example, and to provide a joining metal article in which joining pieces each having a through hole through which a bolt penetrates are projected at small intervals in the shape of a comb tooth, at the beam end side and the column side surface. Side and side, the joint pieces of these joint metal pieces are meshed with each other, and bolts are inserted into the through holes and tightened to connect the beam and the column with each other by joining the joint metal pieces to each other. In the construction method, it is an object of the present invention to provide a joint metal fitting for a column and a beam and a joint construction method capable of easily receiving temporarily and shortening the operation time of the crane.

[0011]

In order to achieve the above-mentioned object, the present invention achieves the above-mentioned object. The joining metal article on the side surface of the column has an upward trapezoidal cross section in which the joining piece is narrowed upward, and the joining metal article on the beam end side is formed. The joining piece has a trapezoidal downward cross-section that narrows downward, and when the beam is hung, the joining end of the joining metal article on the side of the column is engaged with the joining piece of the joining metal article on the side of the column. The gist of the present invention is to temporarily support the joint piece of the joint metal article on the part side in a state of being sandwiched between the joint pieces of the joint metal article on the side surface of the column.

[0012]

According to the present invention, the beam is suspended between the columns previously built by the crane so that the joining pieces of the joining metal article on the side surface of the column and the joining pieces of the joining metal article on the beam end side are engaged with each other. However, at this time, the joint pieces of the joint metal article on the side of the beam end enter in a wedge state between the joint pieces of the joint metal article on the side surface of the column and do not come out downward. As a result, the entire beam is temporarily supported and does not fall even if the crane is removed.

In such a state of temporary support, a high-strength bolt is inserted into the through hole and tightened with a nut so that the beam and the column are completely joined together by joining the joining pieces of the joining metal.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 3 show an embodiment of a metal joint for a pillar and a beam of the present invention, in which the same constituent elements as those in FIGS. 4 to 6 showing the conventional example are designated by the same reference numerals.

Similar to the above-mentioned conventional example, the joining piece 5 having the joining pieces 3 formed with the through holes 4 through which the bolts penetrate is formed at small intervals in the shape of a comb tooth, and the end of the flange 1a of the beam 1 and the side surface of the column 2. It is provided in each.

In the present invention, the joining metal piece 5 to be welded to the side surface side of the pillar 2 has a trapezoidal cross section in which the joining piece 3 is narrowed upward. As a result, the joining pieces 3 have a trapezoidal downward cross-section which is widened upward. After joining, the outermost joining piece is not tapered.

On the other hand, the joint metal 5 to be welded to the end of the flange 1a of the beam 1 has a trapezoidal downward cross section in which the joint piece 3 is tapered downward. As a result, the space between the joining pieces 3 becomes a trapezoidal shape having an upward cross-section that spreads downward.

The joint metal 5 to be welded to the side surface of the column 2
The cross-sectional shape of the joining piece 3 and the cross-sectional shape of the joining piece 3 of the joining metal 5 to be welded to the end of the flange 1a of the beam 1 are the same as the top and bottom, and since these joining pieces 3 are juxtaposed at equal intervals, The shape between the joining pieces 3 of the joining metal article 5 to be welded to the side surface side of the column 2 is the same as the shape of the joining piece 3 of the joining metal article 5 to be welded to the end of the flange 1a of the beam 1, and the flange 1a of the beam 1
The shape between the joining pieces 3 of the joining metal piece 5 to be welded to the end matches the shape of the joining piece 3 of the joining metal piece 5 to be welded to the side surface side of the column 2.

The beam 1 is hung by a crane between the pillars 2 previously built, and as shown in FIG.
The joining piece 3 of the joining metal piece 5 on the end side of the beam 1 between the joining pieces 3 of
Is inserted from above and the joint pieces 3 are engaged with each other.

In this way, the joint piece 3 of the joint metal piece 5 on the end side of the beam 1 enters in a wedge state between the joint pieces 5 of the joint metal piece 5 on the side surface side of the column 1 and does not come out downward. As a result, the entire beam 1 is temporarily supported and will not fall even if the crane is removed.

[0021]

As described above, the pillar-and-beam joining metal and the joining method according to the present invention include a joining piece in which a joining piece having a through hole through which a bolt passes is projected at a small interval in the shape of a comb tooth. The beams and columns are provided on the beam end side and the column side face side, respectively, and the joining pieces of these joining metal pieces are engaged with each other, and the bolts are inserted into the through holes and tightened to join the beams and columns through the joining of the joining metal pieces. In the method of joining pillars and beams, it is possible to shorten the operating time of the crane by making it possible to easily receive the temporary support.

[Brief description of drawings]

FIG. 1 is a perspective view showing one embodiment of a metal joint for a pillar and a beam according to the present invention.

FIG. 2 is a side view at the time of joining showing one embodiment of the joining metal article for columns and beams and the joining method of the present invention.

FIG. 3 is a side view after joining showing one embodiment of a joining metal article for columns and beams and a joining method of the present invention.

FIG. 4 is a plan view showing a conventional example before erection.

FIG. 5 is a front view of a conventional example during construction.

FIG. 6 is a plan view after erection showing a conventional example.

FIG. 7 is a perspective view after erection showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Beam 1a ... Flange 2 ... Column 3 ... Joining piece 4 ... Through hole 5 ... Joining metal 6 ... High-strength bolt 7 ... Diaphragm 8 ... Base 9 ... Swelling part

Claims (2)

[Claims] 1. Bonding pieces having through holes through which bolts are formed are provided at the beam end side and the column side surface side, respectively, and the bonding pieces are provided at small intervals so as to project like comb teeth. A joint piece of a joint metal piece on the side surface of a column, which is a joint metal piece of a column and a beam, in which a beam and a column are joined together by joining the joint pieces by joining each other and tightening by inserting a bolt into the through hole. Is a pillar-and-beam welded metal fitting, characterized in that it has an upward trapezoidal cross section that narrows upward, and the joining piece of the bonded metal article on the beam end side has a downward trapezoidal cross section that narrows downward. 2. Joining pieces formed by forming through holes through which bolts penetrate are provided at small intervals in the shape of comb teeth, and are provided on the beam end side and the column side surface side, respectively. In a joining method of a pillar and a beam, which joins each other and tightens a bolt through the through hole to fasten the beam and the pillar through the joining of the joining metal objects, a joining piece of the joining metal article on the side surface of the column Is a trapezoidal cross-section that tapers upward, and the joining piece of the metal fitting on the beam end side has a trapezoidal cross-section that tapers downwards. When engaging the joining piece of the joining metal article on the beam end side with the joining piece, temporarily supporting the joining piece of the joining metal article on the beam end side in a state of being sandwiched between the joining pieces of the joining metal article on the pillar side surface side. The method of joining columns and beams that features