JP2024006303A - Joint structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satisfactorily join ends of a pair of steel plates butted against each other in a predetermined butting direction on the same plane while improving the design in a joint structure in which the ends of the pair of steel plates are joined by bolts via a splice plate.

SOLUTION: Comb tooth portions 1A and 2A formed of a plurality of convex portions 1Aa and 2Aa arranged in parallel in a width direction D2 intersecting a butt direction D1 in the in-plane direction of a pair of steel plates 1 and 2 are formed at ends 1a and 2a of the steel plates 1 and 2, respectively. Also, the ends 1a and 2a of the pair of steel plates 1 and 2 are butted against each other with the comb tooth portions 1A and 2A interlocking with each other. Bolt insertion holes are formed in each of the plurality of convex portions 1Aa and 2Aa. Each of the ends 1a and 2a of the pair of steel plates 1 and 2 is fastened to a splice plate 7 by bolts 4 inserted into the bolt insertion holes.

SELECTED DRAWING: Figure 2

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a joining structure in which end portions of a pair of steel plates that are butted against each other in a predetermined matching direction within the same plane are joined by bolts via a splice plate.

In a joint structure in which the ends of a pair of steel plates, such as an H-beam web or flat steel, are joined by bolts while butting against each other in the same plane, a splice plate is placed along the ends of the pair of steel plates, and the Each of the pair of steel plate ends is fastened to the splice plate by a bolt inserted into a bolt insertion hole formed in each of the pair of steel plate ends (see, for example, Patent Document 1).
In the joining structure described in Patent Document 1, each of the ends of the pair of steel plates is formed linearly along the width direction that intersects with the butting direction in the in-plane direction of the steel plate. Therefore, when the ends of the pair of steel plates are butted against each other, the bolt insertion holes formed in each of the ends of the pair of steel plates are arranged on both sides of the straight boundary in the butt direction. become. Each of the pair of steel plate ends is fastened to the splice plate by bolts inserted into bolt insertion holes arranged on both sides of the boundary.

Japanese Patent Application Publication No. 2012-127164

In the joining structure described in Patent Document 1, the bolt insertion holes formed in each of the ends of the pair of steel plates are spaced apart to some extent on both sides in the butting direction across the linear boundary between the ends of the pair of steel plates. Therefore, the length of the splice plate fastened by the bolts inserted into these bolt insertion holes along the abutting direction is relatively long. This makes it difficult to hide the joint between the ends of the pair of steel plates, including the splice plate, from the outside. It becomes difficult.
In view of this situation, the main problem of the present invention is to improve the design in a joining structure in which the ends of a pair of steel plates butted in a predetermined butting direction on the same plane are joined by bolts via a splice plate. It is an object of the present invention to provide a technique that can satisfactorily join the ends of a pair of steel plates while improving the quality of the joints.

A first characteristic configuration of the present invention is a joining structure in which a pair of steel plate ends that are butted together in a predetermined butting direction in the same plane are joined by bolts via a splice plate,
Each of the pair of steel plate ends is formed with a comb-tooth portion consisting of a plurality of protrusions arranged in parallel in the width direction intersecting the butting direction in the in-plane direction of the steel plate, and The steel plate ends are butted against each other with the comb teeth interlocking with each other,
A bolt insertion hole is formed in each of the plurality of convex portions, and each of the pair of steel plate ends is fastened to the splice plate by a bolt inserted into the bolt insertion hole.

According to this configuration, the pair of steel plate ends are butted in the butting direction in the same plane with the comb tooth portions formed on each of the pair of steel plate ends meshing with each other. There is. Then, the plurality of convex portions of each comb tooth portion of the pair of steel plate ends are arranged side by side along the width direction that intersects the butting direction, and each of these convex portions has a The plurality of bolt insertion holes formed fall within a relatively short range in the matching direction. Therefore, as for the splice plate fastened by the bolt inserted into the bolt insertion hole formed in each of the plurality of convex portions, it is possible to adopt a compact splice plate that is relatively short in the abutment direction, which improves the design. In order to improve safety, for example, the joint between the ends of a pair of steel plates including the splice plate can be easily hidden from the outside.
Therefore, according to the present invention, in a joining structure in which the ends of a pair of steel plates butted against each other in a predetermined butting direction in the same plane are joined by bolts via a splice plate, the ends of a pair of steel plates can be joined together while improving the design. It is possible to provide a technique that allows the ends to be joined well.

A second characteristic configuration of the present invention is that the length of the splice plate along the butting direction is set within a range between base end portions of the convex portions at each of the pair of steel plate end portions. It is in.

According to this configuration, the length of the splice plate along the butting direction is between the proximal end portions of the convex portions of each of the pair of steel plate end portions that are butted together with their comb tooth portions interlocking with each other. Therefore, bolt insertion holes are formed only in the plurality of convex portions of the comb teeth, and the bolts inserted into the bolt insertion holes connect each of the ends of the pair of steel plates to the splice plate. can be concluded.
In the abutting direction, the splice plate fits within the range where the comb tooth portions of the ends of the pair of steel plates exist, so that these can be easily hidden from the outside.

A third feature of the present invention is that in each of the pair of steel plate ends, the bolt insertion holes formed in each of the plurality of convex portions are arranged in the same row along the width direction. be.

According to this configuration, in the plurality of convex portions arranged side by side along the width direction, the bolt insertion holes formed in the plurality of convex portions are arranged in the same row along the width direction. The bolt insertion holes formed in each of the plurality of convex portions fall within a very short range in the abutting direction. Therefore, the length of the splice plate along the abutting direction can be further shortened, and these can be more easily hidden from the outside.

A perspective view showing the state of the joining structure of this embodiment before joining A perspective view showing the state of the joining structure of this embodiment after joining Front view showing the configuration of the joining structure of the first embodiment AA sectional view in Figure 3 Front view showing the configuration of the joint structure of the second embodiment BB sectional view in Figure 5

Embodiments of the present invention will be described based on the drawings.

[Basic configuration]
First, the basic configuration of the joining structure X of this embodiment will be explained based on FIGS. 1 and 2.
The joining structure This is a structure for joining with bolts 4 and nuts.
Note that FIG. 1 shows a state in which the end 1a of the first steel plate 1 and the end 2a of the second steel plate 2, which are in the same plane, are butted against each other in the abutting direction D1 before joining them. represents. Moreover, FIG. 2 represents the state after joining the end part 1a of the 1st steel plate 1 and the end part 2a of the 2nd steel plate 2 arrange|positioned in this way.
The joining structure X adopts a characteristic configuration for excellently joining the ends 1a and 2a of the first steel plate 1 and the second steel plate 2 while improving the design, and the details thereof are explained below. do.

As shown in FIG. 1, at the respective ends 1a and 2a of the pair of steel plates 1 and 2, in the in-plane direction of the steel plates 1 and 2, the steel plates 1 and 2 are arranged in parallel in the width direction D2 that intersects with the butting direction D1. Comb teeth portions 1A and 2A are formed of a plurality of convex portions 1Aa and 2Aa. That is, in the comb-teeth portion 1A formed on the end portion 1a of the first steel plate 1, a convex portion 1Aa protrudes in the shape of a band of approximately equal width toward the end portion 2a of the second steel plate 2 along the butting direction D1. They are formed at a plurality of locations (for example, three locations) at equal intervals along the width direction D2. On the other hand, in the comb tooth portion 2A formed on the end portion 2a of the second steel plate 2, a convex portion 2Aa protrudes in the shape of a band of approximately equal width toward the end portion 1a of the first steel plate 1 along the butting direction D1. They are formed at a plurality of locations (for example, two locations) at equal intervals along the width direction D2.

As shown in FIG. 1, the respective end portions 1a and 2a of the pair of steel plates 1 and 2 are butted against each other with their comb teeth portions 1A and 2A interlocking with each other. That is, in a state where the end 1a of the first steel plate 1 and the end 2a of the second steel plate 2 are butted against each other, the convex portion 1Aa of the comb tooth portion 1A on the first steel plate 1 side and the comb on the second steel plate 2 side The convex portions 2Aa of the tooth portion 2A are arranged alternately along the width direction D2. In addition, between the protrusions 1Aa and 2Aa adjacent to each other, and between the ends 1a and 2a of the steel plates 1 and 2 on one side and the tips of the protrusions 1Aa and 2Aa on the other side of the steel plates 1 and 2, there are , a slight gap is formed to compensate for the deviation in relative position between the pair of steel plates 1 and 2.

Bolt insertion holes 1B and 2B are formed in the plurality of protrusions 1Aa and 2Aa, respectively. That is, a bolt insertion hole 1B is bored approximately in the center of each of the plurality of convex portions 1Aa constituting the comb tooth portion 1A on the first steel plate 1 side, and the comb tooth portion 2A on the second steel plate 2 side is formed with a bolt insertion hole 1B. A bolt insertion hole 2B is formed approximately at the center of each of the plurality of convex portions 2Aa.

As shown in FIG. 2, the ends 1a, 2a of the pair of steel plates 1, 2 are fastened to the splice plate 7 by bolts 4 and nuts inserted through both bolt insertion holes 1B, 2B, and the ends 1a, 2a are joined together. That is, the splice plate 7 is made of flat steel that is elongated in the width direction D2 and has a configuration that covers the entire plurality of convex portions 1Aa on the first steel plate 1 side and multiple convex portions 2Aa on the second steel plate 2 side. . As shown in FIG. 1, the splice plate 7 has a plurality of bolt insertion holes 1B formed on the first steel plate 1 side and a plurality of bolt insertion holes 2B formed on the second steel plate 2 side, respectively. A plurality of corresponding bolt insertion holes 7B are formed.

The splice plate 7 is arranged along the plurality of convex portions 1Aa and 2Aa arranged side by side along the width direction D2 on the first steel plate 1 side and the second steel plate 2 side. In this embodiment, the first steel plate 1 and the second steel plate 2 have the same thickness, but if the thicknesses are different, a filler material is used to fill the gap between them and the splice plate 7. You may intervene as appropriate.
With respect to the splice plate 7 arranged in this way, the ends 1a and 2a of the pair of steel plates 1 and 2 are connected to the bolt insertion holes 1B and 2B formed in the plurality of convex parts 1Aa and 2Aa, respectively, and the splice plate. They are fastened together by a plurality of bolts 4 and nuts inserted into respective bolt insertion holes 7B formed in bolts 7.
Although the splice plate 7 can be provided only on one side of the ends 1a and 2a of the pair of steel plates 1 and 2, as shown in FIG. A strong joint is achieved by arranging the splice plate 7.

The width, which is the length along the butting direction D1 of the splice plate 7, is within the range between the proximal ends 1Ab and 2Ab of the protrusions 1Aa and 2Aa at the ends 1a and 2a of the pair of steel plates 1 and 2, respectively. It is set. Specifically, the width of the splice plate 7 is set to be equal to the width between the tips of the protrusions 1Aa, 2Aa at the ends 1a, 2a of the pair of steel plates 1, 2, respectively. As a result, at the ends 1a and 2a of the pair of steel plates 1 and 2, the splice plate 7 is attached only to the plurality of convex portions 1Aa and 2Aa of the comb tooth portions 1A and 2A, and Bolt insertion holes 1B and 2B are formed only in the plurality of convex portions 1Aa and 2Aa. The splice plate 7 is compact enough to fit within the range where the comb teeth 1A, 2A of the ends 1a, 2a of the pair of steel plates 1, 2 exist in the butting direction D1, and is It can be easily hidden from

In each of the ends 1a and 2a of the pair of steel plates 1 and 2, bolt insertion holes 1B and 2B formed in the plurality of protrusions 1Aa and 2Aa are arranged in the same row along the width direction D2. Specifically, the respective bolt insertion holes 1B and 2B are arranged in a line along the width direction D2. As a result, each of the bolt insertion holes 1B and 2B falls within a very short range in the butting direction D1, so the splice plate 7 has a smaller width and can be more easily hidden from the outside. .

The basic configuration of the joining structure X has been described above, and the joining structures of the first example and the second example, which are application examples thereof, will be explained in order below.

[First example]
As an application example of the above-mentioned joining structure X (see FIGS. 1 and 2), the configuration of the joining structure X1 of the first embodiment will be described based on FIGS. 2 and 3.
In the following description, detailed descriptions of structures similar to the above-mentioned joining structure X (see FIGS. 1 and 2) may be omitted.

The joining structure X1 of this embodiment is a structure in which the lower gusset plate 13 of the windproof beam 10 and the lower mullion material 20 are joined.
That is, in the joining structure They are butted against each other in the butting direction D1, which is a vertical direction, in the same vertical plane perpendicular to the current direction, and are joined by bolts 24 and nuts via a pair of splice plates 27 provided on both sides.

A comb tooth portion 13A is formed on the lower end portion 13a of the lower gusset plate 13. The comb tooth portion 13A is formed of three convex portions 13Aa arranged in parallel in the width direction D2, which is the horizontal direction within the plane. On the other hand, the upper end 20a of the lower mullion material 20 is formed with a comb tooth portion 20A consisting of two convex portions 20Aa arranged in parallel in the width direction D2.
Then, the lower end portion 13a of the lower gusset plate 13 and the upper end portion 20a of the lower mullion material 20 are butted together along the abutting direction D1 with their comb teeth portions 13A and 20A interlocked with each other.

A pair of splice plates 27 have a plurality of convex portions 13Aa arranged in line along the width direction D2 at the comb teeth portions 13A and 20A of the lower gusset plate 13 and the lower mullion material 20 that are butted together as described above. , 20Aa. Note that since the thickness of the lower gusset plate 13 is thinner than the lower mullion material 20, filler material 28 is provided on both sides of the convex portion 13Aa of the lower gusset plate 13 to fill the gap between it and the splice plate 27. equipped.
Then, the lower gusset plate 13 and the lower mullion are inserted into the lower gusset plate 13 and the lower mullion by the bolts 24 and nuts inserted into the bolt insertion holes 13B and 20B formed in the plurality of convex parts 13Aa and 20Aa and the bolt insertion holes 27B formed in the splice plate 27. A pair of ends 13a and 20a of the material 20 are joined together.

In short, when comparing each structure of the joint structure X1 of the present embodiment shown in FIGS. 3 and 4 with each structure of the joint structure X shown in FIGS. The portion 13a and the upper end 20a of the lower mullion material 20 correspond to the end 1a of the first steel plate 1 and the end 2a of the second steel plate 2 in the joint structure X. Further, the comb teeth portions 13A and 20A in the joint structure X1 and the plurality of convex portions 13Aa and 20Aa that constitute them correspond to the comb tooth portions 1A and 2A in the joint structure X and the plurality of convex portions 1Aa and 2Aa that constitute them. do. Furthermore, the splice plate 27 and bolt 24 in the joint structure X1 correspond to the splice plate 7 and bolt 4 in the joint structure X.

The windproof beam 10 includes a horizontal plate portion 11 that extends in a horizontal plane, and a vertical plate portion 12 that extends downward from both front and rear (left and right in FIG. 3) ends of the horizontal plate portion 11. It is provided across a pair of vertical plate parts 12 in a posture perpendicular to these plate parts 11 and 12. Therefore, in the windproof beam 10, a groove 10a is formed which is open at the bottom and surrounded by the horizontal plate portion 11 and the pair of vertical plate portions 12, and the lower gusset plate 13 is housed in the groove 10a. It is located in Although the configuration of the joint structure X1 is not limited, as shown in FIG. The joining structure X1 is applied to each joining portion of the lower mullion material 20.

Similarly to the joint structure X shown in FIGS. 1 and 2, the width of the splice plate 27 in the joint structure X1 shown in FIG. Since the joint structure X1 is set to be small within the range between the proximal ends 13Ab and 20Ab of the protrusions 13Aa and 20Aa in each of the protrusions 13Aa and 20A, the joint structure X1 is appropriately accommodated in the groove 10a of the windproof beam 10, Can be properly hidden from the outside.

Furthermore, an upper mullion material 25 is joined to the upper surface of the wind-resistant beam 10 via an upper gusset plate 15 fixed to the upper surface of the horizontal plate portion 11 of the wind-resistant beam 10 .

[Second example]
As an application example of the above-mentioned joining structure X (see FIGS. 1 and 2), the configuration of a joining structure X2 of a second embodiment will be described based on FIGS. 5 and 6.
In the following description, detailed descriptions of structures similar to the above-mentioned joining structure X (see FIGS. 1 and 2) may be omitted.

The joining structure X2 of this embodiment is a structure in which the support plate 31 of the handrail 30 and the bracket 42 of the vertical rim 41 are joined.
That is, in the joining structure 5) are butted against each other in the matching direction D1, which is a horizontal direction, within the same vertical plane orthogonal to the direction in which the plurality of support plates 31 are arranged side by side (the left-right direction in FIG. 6), They are joined by bolts 44 and nuts via a pair of splice plates 47 provided on both sides.

A comb tooth portion 31A is formed on the lower back end portion 31a of the support plate 31. The comb tooth portion 31A is formed of two convex portions 31Aa arranged in parallel in the width direction D2, which is the vertical direction within the plane. On the other hand, the front end 42a of the bracket 42 is formed with a comb-teeth portion 42A consisting of two protrusions 42Aa arranged in parallel in the width direction D2.
Then, the lower back end 31a of the support plate 31 and the front end 42a of the bracket 42 are abutted along the abutting direction D1 with their comb teeth 31A and 42A interlocking with each other. .

A pair of splice plates 27 are attached to both surfaces of the plurality of convex portions 31Aa and 42Aa arranged in line along the width direction D2 in the comb teeth portions 31A and 42A of the bracket 42 and of the butted support plate 31 as described above. It is placed in line with the . Note that the support plate 31 and the bracket 42 have substantially the same thickness.
Then, the bolts 44 and nuts inserted into the bolt insertion holes 31B and 42B formed in the plurality of convex parts 31Aa and 42Aa and the bolt insertion hole 47B formed in the splice plate 47 are inserted into the support plate 31 and the bracket 42. A pair of end portions 31a and 42a are joined together.

In short, when comparing each configuration of the joint structure X2 of the Honji Directive shown in FIGS. 5 and 6 with each configuration of the joint structure X shown in FIGS. 1 and 2 described above, The side end 31a and the front end 42a of the bracket 42 correspond to the end 1a of the first steel plate 1 and the end 2a of the second steel plate 2 in the joint structure X. Furthermore, the comb teeth portions 31A and 42A in the joint structure X2 and the plurality of convex portions 31Aa and 42Aa that constitute them correspond to the comb tooth portions 1A and 2A in the joint structure X and the plurality of convex portions 1Aa and 2Aa that constitute them. do. Further, the splice plate 47 and bolt 44 in the joint structure X2 correspond to the splice plate 7 and bolt 4 in the joint structure X.

The waist wall 40 is constructed by constructing finishing materials such as field boards, outer walls, and cap wood around the vertical rim 41.
Further, a parting member 32, which is a steel plate, is fixed to the intermediate portion of the support plate 31 of the handrail 30, and is a steel plate that protrudes from the support plate 31 toward the waist wall 40 in a horizontal position covering the upper side of the joint structure X1. Although the configuration of the joint structure X2 is not limited, as shown in FIG. Structure X2 is applied. Furthermore, a finishing material 49 is provided along the vertical plane including the front end portions of the parting material 32 and the plurality of support plates 31, and the parting material 32 and the finishing material 49 separate the waist wall 40 and the support plate 31. The joining structure X2 housed between the two is covered up.

Similarly to the joining structure X shown in FIGS. 1 and 2, the width of the splice plate 47 in the joining structure X2 shown in FIG. 3 (the length along the horizontal direction D1 in FIG. Since the convex portions 31Aa and 42Aa are set to be small within the range between the proximal ends 31Ab and 42Ab of the protrusions 31Aa and 42Aa, even when the support plate 31 of the handrail 30 is brought close to the waist wall 40, there will be no space between them. The joining structure X2 can be appropriately housed and appropriately hidden from the outside.

[Another embodiment]
Other embodiments of the present invention will be described. Note that the configurations of each embodiment described below are not limited to being applied individually, but can also be applied in combination with the configurations of other embodiments.

(1) In the above embodiment, the width (length along the butting direction D1) of the splice plates 7, 27, 47 is the width of the convex portion 1Aa at the end portion 1a, 13a, 31a of the first steel plate 1, 13, 31. , 13Aa, 31Aa, and the proximal ends 2Ab, 20Ab, 42Ab of the protrusions 2Aa, 20Aa, 42Aa at the ends 2a, 20a, 42a of the second steel plates 2, 20, 42. Although the widths of the splice plates 7, 27, and 47 are set within the range between the two, the widths of the splice plates 7, 27, and 47 may be changed as appropriate.

(2) In the above embodiment, the bolt insertion holes 1B, 13B, 31B formed in the protrusions 1Aa, 13Aa, 31Aa at the ends 1a, 13a, 31a of the first steel plates 1, 13, 31, and the second steel plate 2 , 20, 42, the bolt insertion holes 2B, 20B, 42B formed in the convex portions 2Aa, 20Aa, 42Aa at the ends 2a, 20a, 42a are arranged in a line along the width direction D2, but as appropriate. They may be arranged in multiple rows or may not be arranged in the same row.

1, 2 Steel plates 1A, 2A Comb tooth portions 1Aa, 1Ab Convex portions 1Ab, 2Ab Base end portions 1B, 2B Bolt insertion holes 1a, 2a End portion 4 Bolt 7 Splice plate 13 Lower gusset plate (steel plate)
13A Comb tooth portion 13Aa Convex portion 13Ab Base end portion 13B Bolt insertion hole 13a Lower end (steel plate end)
20 Lower mullion material (steel plate)
20A Comb tooth part 20Aa Convex part 20Ab Base end part 20B Bolt insertion hole 20a Upper end part (steel plate end part)
24 Bolt 27 Splice plate 31 Support plate (steel plate)
31A Comb tooth portion 31Aa Convex portion 31Ab Base end portion 31B Bolt insertion hole 31a Lower back end (steel plate end)
42 Bracket (steel plate)
42A Comb tooth portion 42Aa Convex portion 42Ab Base end portion 42B Bolt insertion hole 42a Front end (steel plate end)
44 Bolt 47 Splice plate D1 Butting direction D2 Width direction X Joining structure X1 Joining structure X2 Joining structure

Claims (3)

A joining structure in which ends of a pair of steel plates butted together in a predetermined butting direction in the same plane are joined by bolts via a splice plate,
Each of the pair of steel plate end portions is formed with a comb tooth portion consisting of a plurality of convex portions arranged in parallel in the width direction intersecting the abutting direction in the in-plane direction of the steel plate, and The ends of the steel plates are butted against each other with the comb teeth interlocking with each other,
A joining structure in which a bolt insertion hole is formed in each of the plurality of convex portions, and each of the pair of steel plate ends is fastened to the splice plate by a bolt inserted into the bolt insertion hole. The joining structure according to claim 1, wherein the length of the splice plate along the butting direction is set within a range between base end portions of the convex portions at each of the pair of steel plate end portions. The joining structure according to claim 1 or 2, wherein the bolt insertion holes formed in each of the plurality of convex portions are arranged in the same row along the width direction in each of the pair of steel plate end portions.

Images