JPH0656033B2 - Joint structure of steel column with closed section and beam made of laminated wood - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a joint structure of a column having a closed cross section such as a rectangular steel tube column and a steel beam, and a beam made of laminated wood.

[Conventional technology]

Recently, an laminated material formed by laminating a plurality of thin wooden boards while adhering the same with an adhesive material is a uniform material with no defects, and is therefore widely used as a structural material for buildings.

When using this type of structural material, it is naturally conceivable to use it together with an iron frame material such as an H-shaped steel or a rectangular steel pipe. Conventionally, most of this type of joining has been performed using joining hardware with various shapes. ing.

[Problems to be Solved by the Invention]

However, when the H-section steel is used for the column, the column and the beam can be relatively easily joined by using the joining metal item, but when the closed section material such as the rectangular steel pipe is used, the attachment of the joining item to the column and the joining item It is not easy to join the column and the beam because the joining of the beam and the end of the beam is very troublesome.

The present invention has been proposed to solve the above-mentioned conventional problems, and it is possible to perform the joining of a steel column having a closed cross section and a beam made of laminated wood very easily and surely and firmly. An object of the present invention is to provide a joint structure between a steel column having a closed cross section and a steel beam made of laminated wood.

[Means for solving problems]

The present invention relates to a joint structure between a steel column having a closed cross section such as a square steel pipe or a circular steel pipe and a steel beam made of laminated wood. A slit is formed at the end of a beam made of laminated wood, an anchor nut is installed on the back side of the joint hole, and a male screw portion is formed on the outer periphery of the joint hole and a cylindrical body having a screw hole on the inner periphery is formed. Insert, screw the tip portion into the anchor nut, screw the male thread portion of the battledore bolt into the screw hole of the cylinder, and insert the flange portion of the battledore bolt into the slit of the beam end while The above object is achieved by joining the column and the beam by bolting the flange portion and the beam end portion with a plurality of joining bolts.

〔Example〕

 The present invention will be described below with reference to an embodiment shown in the drawings.

1 and 2, reference numeral 1 is a steel column having a circular closed cross section (hereinafter referred to as a pillar), number 2 is a wooden beam (hereinafter referred to as a beam), and number 3 is a battledore bolt. .

A plurality of joint holes 4, ... Are bored at regular intervals in the vertical direction on the side surface of the joint portion of the pillar 1, and a plurality of anchor nuts 5 ,. ing.

The joint hole 4 is preliminarily drilled in a factory or the like when processing a steel frame, and the anchor nut 5 is also attached by welding or the like in advance when a steel frame is processed in a factory or the like.

A cylindrical body 6 is inserted into each of the joint holes 4.

A male screw portion 7 is formed on the outer circumference of the cylinder body 6, and a screw hole 8 is formed on the inner circumference of the cylinder body 6.

The beam 2 is formed by stacking a plurality of thin plates of about 2.5 to 5 cm while vertically adhering with a bonding material, and at the end of the beam 2, a slit 9 continuous in the lateral direction is vertically formed. It is formed at regular intervals in the direction.

A front end side portion of the battledore bolt 3 is formed as a male screw portion 10, and a rear end side portion thereof is formed as a laterally flat flange portion 11.

Then, the battledore plate bolt 3 is projectingly provided on the joint portion of the column 1 by screwing the male screw portion 10 into the screw hole 8 of the cylindrical body 6.

In addition, the end portion of the beam 2 is formed by connecting the flange portion 11 of the battledore bolt 3 to the beam 2.
It is inserted deeply into the slit 9 at the end and the flange 1
1 and a beam 2 correspondingly formed therewith
It is joined to the pillar 1 by bolting with a plurality of joining bolts 12 penetrating the joining holes at the ends.

The diameters and the numbers of the battledore bolts 3 and the joining bolts 12 are appropriately changed depending on the sectional size of the beam 2 to be joined.

4 and 5 show another embodiment of the present invention, in which the battledore bolts 3 are vertically attached to the joints of the pillars 1 and the slits 9 are vertically elongated at the ends of the beams 2. The end of the beam 2 is inserted deeply into the slit 9 and the end of the beam 2 and the flange 11 are bolted together.

Reference numeral 13 in the drawing is a reinforcing plate attached for the purpose of reinforcing the joint portion.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

A battledore bolt can be used as the joining hardware, and the battledore bolt can be projected on the pillar joint by screwing the male screw part into the screw hole of the cylinder attached to the pillar joint. Since the beam end made of the material can be joined by inserting the flange portion of the battledore bolt into the slit formed in the beam end portion and bolting the beam end portion and the flange portion together, the column and the beam can be joined. It is extremely easy and reliable to join.

[Brief description of drawings]

FIGS. 1, 2 and 3 show an embodiment of the present invention. FIG. 1 is a cross-sectional view of a column joint portion showing a state where columns and beams are joined, and FIG. A longitudinal sectional view thereof, FIG. 3 is a detailed view of essential parts in FIG. 1, and FIGS. 4 and 5 show another embodiment of the present invention. FIG. 4 shows a column and a beam. FIG. 5 is a horizontal cross-sectional view of the column connection portion showing the joined state, and FIG. 1 ... Pillar, 2 ... Beam, 3 ... Battle plate bolt, 4 ... Joining hole, 5 ... Anchor nut, 6 ... Cylindrical body, 7 ... Male screw part, 8 ... Screw hole, 9 ... Slit 10 ... Male screw part, 11 ... Flange part, 12 ... Joining bolt, 13 ...
… Reinforcement plate.

Claims (1)

[Claims] 1. A plurality of joint holes are formed in a side portion of a steel column joint portion having a closed cross section, and a slit is formed in an end portion of a beam made of laminated wood. An anchor nut is installed on the back side, and a male screw part is provided on the outer periphery of the joining hole.
A tubular body having a screw hole in the inner periphery is inserted and the tubular body tip portion is screwed into the anchor nut, and a male thread portion of the battledore bolt is screwed into the screw hole of the tubular body,
Further, the flange portion of the battledore plate bolt is inserted into the slit of the beam end portion, and the flange portion and the beam end portion are bolted by a plurality of joining bolts, and the steel column having a closed cross section is characterized. And a structure made of laminated wood and a beam.