JPH09228481A - Connection structure of composite steel frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of a composite steel frame in which the holes of a connection metal tool can be safely and easily positioned in the holes of the web of the composite steel frame and further, the necessary time for processing the fitting holes for the connection metal tool, on the web of the composite steel frame, can be reduced and also the web of the composite steel frame can be reinforced. SOLUTION: In the connection structure of a composite steel frame, the composite steel frames 3a, 3b in which wooden materials 12 are attached to the outside face of the upper and lower flanges of a wide flange shape steel 1 are connected to each other with a connection plate 4. A longitudinally extending groove 2 is formed in at least one inside face of the upper and lower flanges of the wide flange shape steel 1 of the composite steel frames 3a, 3b and the connection plate 4 is arranged to freely slide in the groove 2. And holes 6 are formed in the web 10 of the wide flange shape steel 1 of the composite steel frames 3a, 3b and fitting holes 7 are formed on the connection plate 4 to correspond to the holes 6 and positioned to coincide with the holes 6 and fixed together.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a joint structure of a composite steel frame used as a beam or the like.

[0002]

2. Description of the Related Art A conventional steel frame of this type is, for example, as shown in FIG. 7, a composite steel frame 102a and 102b formed by attaching a wood material to the outer surface of the upper and lower flanges of an H-shaped steel 101.
In the case of joining in series with each other, first insert a bolt or the like into both the mounting hole 104a formed in the flat plate-like coupling fitting 103 and the hole formed in the web of the composite steel frame 102a corresponding to the mounting hole 104a. And mounting hole 1
04b and the composite steel frame 10 corresponding to the mounting hole 104b.
A bolt or the like was inserted through both of the holes formed in the web 2a to fix the connecting fitting 103 and the web of the composite steel frame 102a.

Next, bolts and the like are inserted through both the mounting hole 104c formed in the connecting metal fitting 103 and the hole formed in the web of the composite steel frame 102b corresponding to the mounting hole 104c, and the mounting hole 104d and the mounting hole are formed. Hole 1
By inserting bolts or the like into both holes formed in the web of the composite steel frame 102b corresponding to 04d, and fixing the connecting fitting 103 fixed to the composite steel frame 102a and the web of the composite steel frame 102b, the composite steel frame 102a And 102b
And were joined in series.

Further, as shown in FIG. 8, a composite steel frame 1
When the 02a and 102b are joined in a T-shape, first, the connecting fitting 1 having the upright piece 105 is fixed with a bolt or the like.
06 and the web of the composite steel frame 102a are fixed, and then
A bolt or the like is inserted through both the hole 107 formed in the upright piece 105 and the hole formed in the web of the composite steel frame 102b corresponding to the hole 107 to erect the connecting metal fitting 106 fixed to the composite steel frame 102a. By fixing the piece 105 to the web of the composite steel frame 102b, the composite steel frames 102a and 102b
b and T were joined in a T shape.

[0005]

However, in the conventional example, the web of the composite steel frame 102 must be provided with a hole for attaching the connecting fitting 103. Composite steel frame 10
Since 2 is produced for each subject, it takes a long time to process to make holes for attaching the connecting fittings 103 at different positions on the web of each composite steel frame 102. In addition, at a high place, the metal fitting 102 is connected to the web of the composite steel frame 102.
In the case of attaching, the attachment holes 104 formed in the connecting metal fitting 103 must be aligned with the positions of the corresponding holes in the web of the composite steel frame 102, which is dangerous work.

The present invention has been made in view of this point, and provides a joint structure for a composite steel frame in which alignment between the hole of the connecting fitting and the hole of the web of the composite steel frame can be performed safely and easily, and further, An object of the present invention is to provide a joint structure for a composite steel frame, which can shorten the time required to process a hole for attaching a connecting fitting to the web of the composite steel frame and can reinforce the web of the composite steel frame.

[0007]

In the joint structure of composite steel frames according to claim 1 of the present invention, the composite steel frames formed by attaching a wood material to the outer surface side of the upper and lower flanges of the H-shaped steel are joined by a connecting plate. In the joint structure of the composite steel frame, a groove along the longitudinal direction is formed on the inner surface side of at least one of the upper flange and the lower flange of the H-shaped steel of the composite steel frame, and the connecting plate is slidable in the groove, and A hole is formed in the web of the shaped steel, an attachment hole corresponding to the hole is formed in the connecting plate, and the hole and the attachment hole are aligned and fixed.

According to a second aspect of the present invention, there is provided a joint structure for a composite steel frame according to the first aspect, wherein an orthogonal connecting plate for joining the composite steel frame in a T-shape is erected on the connecting plate. It is characterized by consisting of.

According to a third aspect of the present invention, in the joint structure of the composite steel frame according to the first aspect or the second aspect, the height of the connecting plate is substantially the same as the height of the web of the H-section steel. It is characterized by being formed.

According to a fourth aspect of the present invention, there is provided a joint structure for a composite steel frame according to the first aspect, the second aspect, or the third aspect, wherein the H-shaped steel web has holes along the longitudinal direction. It is characterized in that a plurality of them are formed at regular intervals.

According to a fifth aspect of the present invention, there is provided a joint structure for a composite steel frame according to the first aspect, the second aspect or the third aspect, wherein the web of the H-section steel has a long hole along the longitudinal direction. It is characterized by being formed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded perspective view of a joint structure of a composite steel frame which is one embodiment of the present invention. FIG.
It is a perspective view of the connecting plate used for the joint structure of the composite steel frame which is the same embodiment. FIG. 3 is a cross-sectional view of the joint structure of the composite steel frame according to the same embodiment.

The joint structure of the composite steel frame is the joint structure of the composite steel frame 3 in which the composite steel frames 3a and 3b formed by attaching the wood material 12 to the outer surface of the upper and lower flanges of the H-shaped steel 1 are joined by the connecting plate 4. , A convex portion 13 along the longitudinal direction is formed on the inner surface side of the upper flange and the lower flange of the H-shaped steel 1 of the composite steel frame 3, and the convex portion 13 and the web 10 of the H-shaped steel 1 form the groove 2 along the longitudinal direction. Is forming.

The connecting plate 4 is slidable in the groove 2, a plurality of holes 6 are formed in the H-shaped steel 1 of the composite steel frame 3, and the connecting plate 4 is provided with mounting holes 7 corresponding to the holes 6. By forming and fixing the hole 6 and the mounting hole 7, the composite steel frames 3a and 3b are joined together.

The connecting plate 4 has its upper and lower ends bent to form a bent portion 14. By forming the bent portion 14, when the connecting plate 4 is inserted into the groove 2, the welded portion 11 between the web 10 of the H-shaped steel 1 and the upper and lower flanges is avoided, and the connecting plate 4 is smoothly inserted and along the groove 2. It slides smoothly.

Further, the height of the connecting plate 4 is formed to be substantially the same as the height of the web 10 of the H-section steel 1, so that the mechanical strength of the web 10 of the H-section steel 1 can be reinforced. The mechanical strength of the web 10 can also be reinforced by continuously integrating the convex portion 13 on the inner surface side of the upper flange and the convex portion 13 on the inner surface side of the lower flange.

Further, the plurality of holes 6 in the web 10 of the H-section steel 1 are formed at regular intervals along the longitudinal direction of the web 10. Therefore, since the composite steel frame 3 is produced for each subject, a plurality of holes 6 are formed in the web 10 of the H-shaped steel 1 in the longitudinal direction even though the positions of the holes 6 formed are different for each subject. By doing so, when joining the composite steel frames 3a and 3b to each other, it is only necessary to use the webs 10 of the composite steel frame 3 at the proper positions from the plurality of holes 6 at regular intervals. It is sufficient if the plurality of holes 6 formed in the web 10 are formed at regular intervals.

Accordingly, since the web 10 of the composite steel frame 3 may be preliminarily perforated at regular intervals, the time required for perforation can be shortened.

The holes 6 may be formed at regular intervals over the entire length of the web 10, or may be formed at regular intervals in the portion used for joining the composite steel frame 3.

The connecting plate 4 can be made of metal, plastic or the like. Further, the convex portion 13 may be formed integrally with the H-shaped steel 1 or may be attached to the flange of the H-shaped steel 1 afterwards.

A method of constructing the joint structure of the composite steel frame will be described below with reference to FIGS. 1 and 3. First,
The connecting plate 4 is inserted into the groove 2 of the composite steel frame 3a, the connecting plate 4 is slid along the groove 2, and the holes 6 of the web 10 of the composite steel frame 3a and the mounting holes of the connecting plate 4 are placed at appropriate positions. Adjust the position of 7.

Then, the connecting plate 4 and the composite steel frame 3a are fixed by inserting bolts or the like into the holes 6 and the mounting holes 7 to fix the connecting plate 4 and the web 10.

In this case, with the connecting plate 4 inserted in the groove 2 of the composite steel frame 3a, the connecting plate 4 is slid along the groove 2 so that the positions of the holes 6 and the mounting holes 7 of the composite steel frame 3a. Since they can be aligned, they can be easily aligned. In particular, when working at a high place, the alignment can be performed safely and easily.

Next, the composite steel frame 3b is moved, the connecting plate 4 fixed to the composite steel frame 3a is inserted into the groove 2 of the composite steel frame 3b, and the composite steel frame 3b is slid along the groove 2 to an appropriate position. At, the holes 6 of the web 10 of the composite steel frame 3b and the mounting holes 7 of the connecting plate 4b are aligned.

Also in this case, with the connecting plate 4 inserted in the groove 2 of the composite steel frame 3b, the composite steel frame 3b is slid along the groove 2 so that the positions of the holes 6 and the mounting holes 7 of the composite steel frame 3b. Since they can be aligned, they can be easily aligned.
In particular, when working at a high place, the alignment can be performed safely and easily.

Next, bolts or the like are inserted into the holes 6 and the mounting holes 7 to fix the connecting plate 4b and the web 10 of the composite steel frame 3b, thereby completing the fixation of the composite steel frame 3a and the composite steel frame 3b. . Thereby, the composite steel frame 3a and the composite steel frame 3b can be joined in series.

FIG. 4 is a block diagram of a building having a joint structure of composite steel frames which is an embodiment of the present invention. As shown in FIG. 4, this building is a two-story building, and the outer wall material 15
A ventilation passage 16 that is continuous from the floor on the first floor to the front of the eaves is provided inside. The composite steel frame 3 is installed in the attic 17 and the attic 18 on the first floor.

In this case, among the plurality of holes 6 formed in the web 10 of the composite steel frame 3, the hole 6 to which the connecting plate 4 is not attached is in an open state, so that it occurs on the first floor. The air containing moisture is discharged to the ventilation passage 16 from the hole 6 of the composite steel frame 3 on the ceiling 17 of the first floor, and the air containing the moisture generated on the second floor flows from the hole 6 of the composite steel frame 3 of the attic 18 to the eaves. Is discharged. That is, it is possible to ventilate the room through the holes 6 to which the connecting plate 4 is not attached.

FIG. 5 is an exploded perspective view of a joint structure of a composite steel frame which is another embodiment of the present invention. FIG. 6 is a perspective view of a connecting plate used in the joint structure of the composite steel frame according to the same embodiment. The difference between the joint structure of the composite steel frame and the case of FIGS. 1 to 3 is that the composite steel frame 3a has a long hole 9 formed in the web 10 of the H-shaped steel 1 along the longitudinal direction. The orthogonal connecting plate 8 for joining the parts 3 and 3b in a T shape is erected on the connecting plate 4, and the attaching hole 7 corresponding to the long hole 9 of the H-shaped steel 1 of the composite steel frame 3a is formed in the connecting plate 4. The difference is. Other configurations are the same as those in FIGS. 1 to 3. The orthogonal connecting plate 8 also has mounting holes 7 corresponding to the holes 6 of the H-shaped steel 1.

By providing the orthogonal connecting plate 8 in this manner, the composite steel frames 3a and 3b can be joined in a T-shape. Further, since the composite steel frame 3 is produced for each subject, although the positions of the holes 6 formed are different for each subject,
When the composite steel frames 3a and 3b are joined to each other by forming the long hole 9 along the longitudinal direction in the web 10 of the H-shaped steel 1, an appropriate portion of the long hole 9 of the web 10 may be used.

Therefore, the web 10 of the composite steel frame 3 need only be subjected to the long hole processing in advance, so that the time required for the hole processing can be shortened.

The construction method of the joint structure of the composite steel frame will be described below with reference to FIGS. 5 and 6. First, the connecting plate 4 is inserted into the groove 2 of the composite steel frame 3 a, and the connecting plate 4 is slid along the groove 2 to an appropriate position.

Next, bolts or the like are inserted into the holes 6 and the long holes 9 to fix the connecting plate 4 and the web 10 to each other.
The connecting plate 4 and the composite steel frame 3a are fixed.

In this case, with the connecting plate 4 inserted in the groove 2 of the composite steel frame 3a, the connecting plate 4 is slid along the groove 2 to position the holes 6 and the mounting holes 7 of the composite steel frame 3a. Since they can be aligned, they can be easily aligned. In particular, when working at a high place, the alignment can be performed safely and easily.

Further, since one side is the long hole 9, the hole 6
And the slot 9 can be aligned easily and accurately,
When working in high places, work can be done safely and easily.

Next, the composite steel frame 3b is moved, and the mounting hole 7 of the orthogonal connecting plate 8 of the connecting plate 4 fixed to the composite steel frame 3a and the web 1 of the composite steel frame 3b are moved in the groove 2 of the composite steel frame 3b.
Align the position with the hole 6 of 0.

Next, bolts or the like are inserted into the holes 6 and the mounting holes 7 to connect the orthogonal connecting plate 8 and the web 10 of the composite steel frame 3b.
By fixing and, the composite steel frame 3a and the composite steel frame 3b
The fixing with is completed. Thereby, the composite steel frame 3a and the composite steel frame 3b can be joined in a T-shape.

Also in this case, the room can be ventilated by the portion of the long hole 9 formed in the web 10 of the composite steel frame 3 to which the connecting plate 4 is not attached.

[0039]

According to the joint structure of the composite steel frame according to claim 1 of the present invention, a groove along the longitudinal direction is formed in the H-shaped steel of the composite steel frame, and the connecting plate is slidable in the groove. When joining composite steel frames to each other, you can align the holes of the composite steel frame with the mounting holes of the connecting plate by sliding along the groove with the connecting plate inserted in the groove of the composite steel frame. Can be done easily. In particular, when working at a high place, the alignment can be performed safely and easily.

In addition to the effect of the joint structure of the composite steel frame according to the first aspect, the joint structure of the composite steel frame according to the second aspect of the present invention can bond the composite steel frames to each other in a T-shape.

The joint structure of the composite steel frame according to claim 3 of the present invention has, in addition to the effect of the joint structure of the composite steel frame according to claim 1 or 2, a height substantially equal to the height of the web of the H-section steel. The mechanical strength of the H-section steel web can be reinforced by the connecting plate formed in the above.

In addition to the effect of the joint structure of the composite steel frame according to claim 1, claim 2 or claim 3, the joint structure of the composite steel frame according to claim 4 of the present invention can be applied to the web of H-section steel in the longitudinal direction. By forming multiple holes at regular intervals along
When joining composite steel frames to each other, it is sufficient to use the ones at appropriate positions from the plurality of holes of the composite steel web at regular intervals. Therefore, the plurality of holes formed in the web of the composite steel frame are It is sufficient if they are formed at regular intervals. Therefore, the web of the composite steel frame needs to be preliminarily perforated at regular intervals, so that the time required for perforation can be shortened.

The joint structure of the composite steel frame according to claim 5 of the present invention has, in addition to the effect of the joint structure of the composite steel frame according to claim 1, claim 2 or claim 3, the longitudinal direction of the web of H-section steel. When the composite steel frames are joined together by forming the long holes along them, an appropriate portion of the long holes of the web of the composite steel frame may be used. Therefore, the web of the composite steel frame needs to be subjected to the long hole processing in advance, so that the time required for the hole processing can be shortened. Further, since one side is a long hole, the long hole and the mounting hole of the connecting fitting can be easily and accurately aligned. In particular, in the case of work at a high place, the work can be performed safely and easily.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a joint structure for a composite steel frame that is an embodiment of the present invention.

FIG. 2 is a perspective view of a connecting plate used in the joint structure of the composite steel frame according to the above embodiment.

FIG. 3 is a cross-sectional view of the joint structure of the composite steel frame according to the above embodiment.

FIG. 4 is a configuration diagram of a building assembled by the joint structure of the composite steel frame according to the above embodiment.

FIG. 5 is an exploded perspective view of a joint structure of a composite steel frame which is another embodiment of the present invention.

FIG. 6 is a perspective view of a connecting plate used in the joint structure of the composite steel frame according to the above embodiment.

FIG. 7 is an exploded perspective view of a conventional example.

FIG. 8 is an exploded perspective view of a conventional example.

[Explanation of symbols] 1 H-shaped steel 2 Groove 3 Composite steel frame 4 Connecting plate 6 Hole 7 Mounting hole 8 Orthogonal connecting plate 9 Long hole 10 Web 12 Wood material

Claims (5)

[Claims] 1. In a joint structure of composite steel frames in which wood materials are attached to the outer surface side of the upper and lower flanges of the H-section steel, and the composite steel frames are joined together by a connecting plate, an upper flange or a lower flange of the H-section steel of the composite steel frame is formed. A groove along the longitudinal direction is formed on at least one inner surface side, a connecting plate is slidable in the groove, a hole is formed in the H-shaped steel web of the composite steel frame, and the connecting plate is attached corresponding to the hole. A joint structure for a composite steel frame, characterized in that a hole is formed, and the hole and the mounting hole are aligned and fixed. 2. The joint structure for a composite steel frame according to claim 1, wherein an orthogonal connecting plate for connecting the composite steel frame in a T-shape is provided upright on the connecting plate. 3. The joint structure for a composite steel frame according to claim 1, wherein the height of the connecting plate is substantially the same as the height of the web of the H-section steel. 4. The joint structure for a composite steel frame according to claim 1, wherein a plurality of H-section steel web holes are formed at regular intervals in the longitudinal direction. . 5. The joint structure for a composite steel frame according to claim 1, wherein the web of H-section steel is formed with elongated holes along the longitudinal direction.