JPH0617606B2 - Joining equipment for steel structural members for construction - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for joining pillars and beams, or pillars and beams, which are steel structural members for construction, such as pillars and beams, to each other.

[Prior Art] A conventional example of this type of joining method will be described with reference to FIGS. 9 and 10.

The figure shows columns 20 and beams 21 (H-shaped steel), which are structural steel structural members.
It shows the joined state with.

The diaphragm 22 formed on the pillar 20 is attached to the reinforcing plate 2
A bracket 24 (H-shaped steel) having 3 is welded in advance, the beam 21 to be joined is butted against the bracket 24, and upper and lower flange portions 25, 25 of the both are provided with upper and lower attachment plates 26, 27, respectively. The pillar and the beam were joined by tightening the attachment plate with the bolt 28 and the nut 29.

[Problems to be Solved by the Invention] [1] In such a joining method, [1] since bolt holes for joining are formed in the upper and lower flange portions of each of the beams of the bracket, the cross section of the base material is missing and the strength is reduced. Only 80% to 90% is utilized.

[2] Since the joining bolt is attached to both of the base materials to be joined, the bolt has to be used twice as much as the required yield strength.

[3] Since the joining method is friction joining that makes full use of the tension of the high-strength bolt, the proof stress of the high-strength bolt is not fully utilized.

[4] It is an irrational joining method that one beam is cut into three to make left and right brackets and they are connected, and this bracket is attached to the pillar at the factory and then transported to the site, It interferes with work.

There was a problem such as.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to completely separate the joint portion from the structural base material and perform the joint function by the device itself as one device. It is intended to provide a joining device for a steel structural member for construction, which is capable of sufficiently achieving the above.

[Means for Solving the Problems] In order to achieve the above object, a joining apparatus for a building steel structural member according to the present invention is a joining member welded to one of two building steel structural members to be joined and the other. A member to be welded to the substrate, the member to be joined having a vertical cross section and a web connecting the two substrates, and the rising portions at the upper and lower ends of each substrate. A plurality of upper and lower bolt insertion holes are formed in the rising portion, and the joining member is formed in a V-shaped cross section by the upper and lower substrates and a web connecting the two substrates. A rising portion is formed at the upper and lower ends, and female threads for bolt screwing are formed in the rising portion so as to respectively face the bolt insertion holes of the member to be joined, and the member to be joined and the joining member are inserted into the bolt insertion hole and the bolt. For female thread Characterized in that each bolt inserted into each bolt insertion hole is screwed into the bolt screwing female thread, and the bolt is tightened by a nut while sandwiching a rising portion formed with the bolt insertion hole. Yes, it is.

[Operation] The two structural steel structural materials to be joined are joined by joining the joining member and the joined member that each has with a bolt, a nut, and a female screw.

[Embodiment] An embodiment of the present invention will be described with reference to FIGS. 1 to 8.

FIG. 1 is a plan view showing a state in which a joining member and a joined member are joined together by bolts, FIG. 2 is a side view thereof, FIG. 3 is a sectional view taken along line AA ′ of FIG. 4, and FIG. Figure, fifth
FIG. 6 is a sectional view taken along the line BB ′ of FIG. 4, and FIG. 6 is a sectional view taken along the line C- of FIG.
FIG. 7 is a side view when the present invention is applied to the joining of columns and beams, and FIG. 8 is a plan view thereof.

In the figure, reference numeral 1 is a substrate of the member 6 to be joined.
The rising portions 2 and 3 are formed at the upper and lower ends, and a plurality of insertion holes 5 for the bolt 4 are formed in each of the rising portions 2 and 3. Then, the insertion hole 5 for the bolt 4
Are vertically symmetrical with respect to the substrate 1.

Joined member 6 having substrate 1 made of such a member
Is bonded to the upper and lower sides of the web 7 by welding or the like to have an E-shaped cross section, and is mass-produced in advance in a factory.

Reference numeral 8 denotes a substrate of the joining member 12, and rising portions 9 and 10 are formed at upper and lower end portions of the substrate 8, and bolts of the member 6 to be joined are inserted into the rising portions 9 and 10, respectively. A plurality of female screws 11 for screwing bolts are formed respectively facing the holes 5.

Joined member 12 having substrate 8 made of such a member
Also, the substrates 8, 8 are joined to the upper and lower sides of the web 13 by welding or the like to form an E-shaped cross section, which is mass-produced in advance in a factory.

The nut 14 works together with the head of the headed bolt 4 to fix the bolt.

In the case of joining a column and a beam (H-shaped steel), the member 6 to be joined, which is manufactured in advance in a factory, has the substrate 1, 1 on the flange of the beam 15 and the web 7 on the web of the beam in a steel frame factory. Are welded by welding or the like. In the steel factory, the joining members 12 are welded to the upper and lower diaphragms 17 of the pillars 16 by welding the substrates 8 and 8 and the side plates of the pillars by the web 13 respectively.

Next, at the construction site, the beam 15 to be joined is connected to the pillar 1.
6 and 16, and the member 6 to be joined attached to the beam 15 and the joining member 12 attached to the pillar 16 are opposed to each other.

Next, each headed bolt 4 is screwed into each female screw 11 of the joining member 12 through each bolt insertion hole 5 of the joined member 6.
At this time, the nut 14 is interposed between the members 6 and 12 so that the bolt 4 also penetrates the nut 14.

Then, when the bolt 4 is completely screwed into the female screw 11, the nut 14 is rotated toward the bolt insertion hole 5 side, and the head portion of the bolt 4 and the nut 14 sandwich the rising portions 2 and 3, and the bolt 4 is tightened. Tighten and fix 4.

Next, a splint plate 18 is provided on the front and back sides of the webs 7 and 13 between the webs.
The two webs 7 and 13 are connected to each other by applying a required number of bolts 19.

In addition, although the above embodiment has described the connection between the pillar 16 and the beam 15, the present invention can be applied to the connection between the beams.

[Advantages of the Invention] In the present invention, a joining member is brought into contact with and welded to a building steel structural member to be joined, and a member to be joined is welded to a building steel structural member to be joined, and upper and lower end portions of each substrate are joined. Since the joining member and the member to be joined are joined with a plurality of the same number of bolts penetrating the rising part of the above, the joining of the flange portions of the upper and lower surfaces, which requires the most force, is sufficiently performed. No secondary stress is applied to the flange due to joining,
In addition, it is not necessary to form a bolt hole for joining in the flange portion, and the cross section of the base material is not damaged to weaken the strength.

Further, since the joining member and the joined member are joined by a plurality of bolts and the bolts inserted in the joining member are respectively tightened by nuts, it is possible to attach the joining bolt to both of the base materials to which the joining bolt is joined as in the conventional case. Since it is not necessary to use the bolt twice as much as the required proof stress, further, since the two members are separated from each other by at least the distance that the nut is interposed, the joining by the bolt becomes flexible, It is possible to easily determine the dimensions of the two structural steel structural members to be joined without requiring any particular degree of precision.

[Brief description of drawings]

FIG. 1 is a plan view of a joining member and a joined member according to an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a sectional view taken along line AA ′ of FIG. 4, and FIG. Fig. 5 is a sectional view taken along the line BB 'in Fig. 4, Fig. 6 is a sectional view taken along the line CC' in Fig. 4,
FIG. 7 is a side view of the case where the present invention is applied to the connection of columns and beams, FIG. 8 is a plan view thereof, FIG. 9 is a side view of a conventional example, and FIG. 10 is a plan view thereof. 1, 8 ... Substrate, 2, 3, 9, 10 ... Rise, 4 ... Bolt, 5 ... Bolt insertion hole, 6 ... Joined member, 7, 13 ... Web, 11 ... Female screw, 12 ... Joining member, 14 ... Nut, 15 ... Steel structural member for building to be joined, 16 ... Steel structural member for building to be joined.

Claims (1)

[Claims] 1. A joining member welded to one of two structural steel structural members to be joined and a joined member fused to the other, wherein the joined member is a substrate arranged vertically and a substrate to be joined. A web connecting the two substrates is formed into a V-shaped cross section, and rising portions are formed at the upper and lower end portions of each substrate, and a plurality of upper and lower bolt insertion holes are formed in the rising portions. And a web connecting the two substrates to each other to form an E-shaped cross section, and rising portions are formed at the upper and lower ends of each substrate, and the rising portions face the bolt insertion holes of the members to be joined. A female screw for inserting a bolt is formed, and the member to be joined and the joining member are arranged so that the bolt insertion hole and the female screw for inserting a bolt face each other, and each bolt inserted in each bolt insertion hole is inserted into the bolt. When screwed into a female screw Bonding device construction steel structural member, characterized in that tightening the bolt with a nut sandwiching the rising portion formed with the bolt insertion holes.