JP2821107B2 - Shaped steel member with drawn portion for building, joint structure and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an architectural shaped steel member having a drawn portion capable of forming a drawn portion with stable quality at an end portion of a shaped steel member, a joint structure thereof, and a method of manufacturing a drawn portion.

[0002]

2. Description of the Related Art It has been proposed to use a shaped steel member, particularly an H-shaped steel member having excellent rigidity, as a vertical rail of a frame such as an outer wall panel used for a building or the like of a prefabricated construction method.

In such a shaped steel member a, a drawn portion b is formed at the end to fit the end into a groove of a shaped steel member made of a shaped steel material such as another channel steel. Conventionally, as shown in FIG. 18, the narrowed portion b cuts off the flanges f, f at the ends of the shaped steel member main body a1 made of an H-shaped steel, reduces the width of the web c, and forms a plate at both ends of the web c. It is formed by fixing the pieces d, d by welding or the like.

[0004]

However, the above-described method for processing the drawn portion b involves cutting the flange f and the web c, welding, and the like, which tends to reduce the production tact time and increase the production cost. The quality tends to vary, making it difficult to stabilize it.

[0005] The present invention is based on forming a deformed portion on a web in a drawing portion, and the drawing portion can be formed easily with good productivity and at low cost, and the quality can be stabilized. It is an object of the present invention to provide a partially shaped steel member, a joining structure thereof, and a manufacturing method.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned object, a shaped steel part having a drawn portion for construction according to the present invention is made of a shaped steel material provided with flanges on both sides of a web, and has a flange on both ends thereof. A reduced portion having a reduced width dimension is formed, and the web is applied to the web at the reduced portion.
It is characterized in that a deformed portion is formed by out-of-plane deformation of the web without cutting in advance .

It is desirable that the deformed portion extends the web in the longitudinal direction in that the deformed portion can surely absorb the excess thickness generated by the compression of the web.

According to a third aspect of the present invention, there is provided a joint structure for a building-shaped steel member with a drawn portion, wherein the drawn portion of the building-shaped drawn steel member with a drawn portion is formed of a grooved steel member made of another shaped steel material. It is characterized in that the fixed portion is fitted and fixed in the groove portion, thereby stabilizing the strength of the fixed portion which is fitted and fixed in the groove portion of another grooved shaped steel member with a stable quality.

Further, according to a fourth aspect of the present invention, there is provided a method for manufacturing a shaped steel part having a drawn portion for a building, wherein the flange is sandwiched by compressing an end portion of a shaped steel material provided with flanges on both sides of the web. While reducing the width dimension, the surface of the web can be applied to the end web without cutting the web in advance.
It is characterized in that a deformed portion is generated by external deformation .

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a frame member having a narrowed portion for building according to the present invention, and a joint structure thereof. An embodiment of the present invention will be described with reference to the drawings, taking an example of a case where the present invention is applied to a joint structure to a steel plate (therefore, a building member A with a drawn portion for construction is hereinafter referred to as a vertical bar 3).

The panel frame 1 has a rectangular outer frame 2
And the vertical cross bar 3 and the horizontal cross bar 4.

The outer peripheral frame 2 comprises a horizontal upper outer frame member 5, a lower outer frame member 6, and a vertical
The outer frame members 7 on the book side are combined in a rectangular shape with the groove portions M1 facing each other. In the present embodiment, the outer frame member 7 on the side
Grooves M1, M1 of upper and lower outer frame members 5, 6 at the upper and lower ends of
The drawing portion 20 is formed by drawing according to the width of
20 are formed.
An outer peripheral frame 2 which is fitted and fixed in each groove portion M1 of the lower outer frame members 5 and 6 and whose surface (the "surface" in the present specification represents both surfaces of the panel frame 1) is even. Is formed.

The vertical rail 3 has flanges 1 on both sides of the web 9.
Shaped steel material provided with 0, 10 and grooves M on both sides in this embodiment
2. It is made of an H-section steel having an H-shaped cross section having M2,
Each of the grooves M2, M2 faces the grooves M1, M1 of the side frame members 7, 7, and is vertically bridged between the upper outer frame member 5 and the lower outer frame member 6 on both sides of the opening O. .

At the upper and lower ends of the vertical bar 3, there are formed squeezed portions 11, 11 in which the width sandwiching the flanges 10, 10 on both sides is reduced according to the width of the groove M1. , 11 are fitted into and fixed to the grooves M1 of the upper outer frame member 5 and the lower outer frame member 6, respectively. Therefore, in this embodiment, the upper outer frame member 5 and the lower outer frame member 6 form the grooved shaped steel members 13 and 14 made of other shaped steel materials.

Further, as shown in FIG. 1 and enlarged in FIG. 2, a deformed portion 1 deformed into a waveform extending in the longitudinal direction is provided on the web 9 of the vertical rail 3 in the narrowed portion 11.
2 are formed. The “waveform” referred to here includes not only a narrowly defined waveform of a trigonometric sine wave as shown in FIGS. 2 and 5, but also a zigzag cross section.

Next, a method of manufacturing the narrowed portion 11 including the deformed portion 12 will be described. For this purpose, a pressing device 21 as shown in FIGS. 3, 4 and 6 is used. The press device 21 includes a lower mold 22 and an upper mold 23 that can be lifted and lowered so as to be pressed toward the upper surface of the lower mold 22. A horizontal receiving surface 24 for receiving the web 9, insertion grooves 25, 25 on which the lower portions of the flanges 10, 10 on both sides are loosely fitted when the web 9 is supported on the receiving surface 24, and the insertion grooves 25, 25. It has vertical side surfaces 26, 26 rising from one vertical wall surface 25A, 25A beyond the receiving surface 24, and horizontal upper surfaces 27, 27 extending from the upper edge to both sides.

The receiving surface 24 has a width of an end 24A reduced to a width between the inner surfaces of the flanges 10 and 10 of the squeezed portion 11, and the end 24A has a corrugated portion for forming the deformed portion 12. 29 are provided.

Further, a step is formed from both edges of the end portion 24A so as to be smaller than the width between the other vertical wall surfaces 25B, 25B of the insertion groove 25 through the small-width inclined portions 30, 30. End walls 32, 32 are vertically lowered with 31, 31 interposed therebetween.

The one wall surface 25A and the side surface 26, which face the end wall surfaces 32, 32, respectively, are inclined surfaces 34 for supporting the rear surface of a wedge piece 33 whose width decreases downward.

The wedge piece 33 is attached to the inclined surface 34 using a suitable sliding mechanism so as to be vertically movable, and the surface of the wedge piece 33 facing the end wall surface 32 has rigidity. The large pressing plate 35 is attached to the wedge piece 33.
It is mounted so that it can move up and down.

The upper mold 23 is provided with pressing surfaces 37, 37 on both sides for lowering the wedge piece 33 by pressing the upper surfaces of the wedge pieces 33, 33 by lowering, and pressing surfaces 37, 3
7 has hanging surfaces 39, 39 hanging down from the side edges facing each other, and a horizontal lower surface 40 connecting the lower edges of the hanging surfaces 39, 39.

The ends of the hanging surfaces 39, 39 are aligned with the end wall surfaces 32, 32 in the same vertical plane.
9A, 39A, and the end hanging surface 39
A, the mold surface portion 41 of the lower surface 40 between the lower edges of 39A,
The flanges 10, 1 of the vertical rail 3 are attached to the pressing surfaces 37, 37.
The web 9 is provided with a corrugated portion 42 which forms the deformed portion 12 in cooperation with the corrugated portion 29 when the upper end thereof abuts.

As shown in FIGS. 4 and 6, the end of the vertical bar 3 made of H-section steel is connected to the web 9 by the receiving surface 24.
When the upper die 23 is lowered, the upper surfaces of the flanges 10 and 10 are pressed by the pressing surfaces 37 and 37. The wedge pieces 33, 33 are lowered as shown in FIG. 5, and the flanges 10, 10 on both sides are sandwiched between the press contact plates 35, 35 and compressed.
The narrowed portion 11 is formed by reducing the dimension of the width sandwiching the web and deforming the web 9 at the end of the vertical bar 3 into a waveform extending in the longitudinal direction by the compression of the waveform portions 29 and 42. I do. In this way, the deformed portion 12 has a resection
Surface that deforms the surface of the web in the out-of-plane direction without providing
It is formed by external deformation.

The portion of the vertical rail 3 other than the squeezed portion 11 is firmly held by a lower mold 22 and an upper mold 23 as shown in FIG.

The inclined portions 30, 30 provided on both sides of the end portion 24A of the receiving surface 24 and the inclined portions 43, 43 provided on both sides of the mold surface portion 41 form the deformed portion 12 by the corrugated portions 29, 42. In this case, the web 9 has a function to release the excess thickness.

Also, for example, the portion having the mold surface portion 41 of the upper mold 23 and the other portion are separated from each other, and the vertical beam 3 is firmly held in advance by the portion and the lower mold 22, and The unevenness of the vertical rail 3 during the processing of the portion 11 may be more reliably prevented.

As described above, the excess thickness of the web 9 can be absorbed by being deformed into a waveform, thereby facilitating drawing, and simultaneously compressing the flanges 10 and 10 and deforming the web 9 simultaneously. Therefore, the web 9 is not subjected to excessive force, so that the quality can be stabilized, the processing speed can be increased (production tact is improved), the processing cost and the cost of the press device 21 can be reduced.

The vertical rail 3 having the drawn portions 11, 11 formed by drawing at both ends (upper and lower ends) is formed by the drawing bar 11,
11 is the groove portion M of the upper outer frame member 5 and the lower outer frame member 6.
1. The outer frame 2 and the vertical bar 3 are fitted vertically to the M1 and are arranged vertically, and the outer frame 2 and the vertical bar 3 are made to have the same width so that the surfaces of the outer frame 2 and the vertical bar 3 are substantially flush.

The horizontal rail 4 has upper, lower and side outer frame members 5,
6 and 7 are formed of a channel steel having the same width and a groove, and at both ends thereof, drawn portions 46, 46 are formed by drawing according to the width of the grooves M1, M2 to be fitted. One of the narrowed portions 46 (one end of the horizontal rail 4) is fitted in the groove M2, and the other narrowed portion 46 (the other end of the horizontal rail 4) is fitted in the groove M1 of the outer frame member 7 on the side. It is installed horizontally with the grooves facing the two positions.

Further, between the vertical bars 3, 3, horizontal bars 17, 17 made of channel steel, which are members surrounding the opening O, are horizontally hung at the same height as the horizontal bars 4, 4. At the same time, the surfaces of the outer peripheral frame 2, the vertical rails 3, the horizontal rails 4, 17 are substantially flush with each other, thereby facilitating the attachment of the face material 50.

A vertical reinforcing member 52, which is located substantially at the center in the longitudinal direction and has a surface substantially flush with the outer peripheral frame 2, is vertically bridged between the horizontal bars 4, 4 arranged vertically. Reinforcing members 53, 53 are disposed in a rectangular shape in the rectangular area surrounded by the outer frame member 5 and the vertical bars 3, 3 above and below the horizontal rail 17.

As described above, by using the shaped steel member A with the drawn portion made of H-shaped steel as the vertical rail 3 of the panel frame 1, for example, the horizontal rail 4 can be attached to the difference in the position and size of the opening O. Since it is only necessary to change the position and it is not necessary to change the vertical rail 3 itself, it is possible to reduce the number of products and to use a so-called binding material obtained by welding shaped steel members made of channel steel back to back. Therefore, since there is no welding, the productivity can be improved and the weight can be reduced.

The deformed portion 12 formed on the web 9 is
As shown in FIGS. 8 (A) and 8 (B), one curved portion 15 having a substantially semicircular cross section extending in the longitudinal direction along the center line of the web 9 may be used. Shaped steel member A
Along with the center line of the web 9, an iron member such as the anchor bolt 55 can be easily welded to the curved portion 15 with high positional accuracy.

It should be noted that the deformed portion 12 is also different from FIGS.
As shown in FIG. 12, two curved portions 15 </ b> A, 15 </ b> A (deformation at two locations facilitates press working), a square groove 16 extending in the longitudinal direction along the center line of the web 9, or a V-shape Various configurations, such as a configuration including the groove 19 and a configuration in which the V-shaped groove 19 is provided in a zigzag manner (FIG. 12), can be employed.

Further, as shown in FIG.
May include, at a root portion of the narrowed portion 11, round convex portions 50, 50 formed by a punch or the like at the same time as the press working of the narrowed portion 11 to facilitate the press working.

The convex portions 50 may be employed together with the curved portions 15 extending in the longitudinal direction (FIG. 13). However, as shown in FIG. 14, a plurality of convex portions 50 are averagely arranged in a staggered manner. In such a case, the strength can be stabilized.

As shown in FIG. 15, a deformed portion 12 composed of curved portions 15A, 15A which does not reach the edge of the web 9 is formed.
Can also be formed. As described above, the deformed portion 12 shown in FIGS.
Is the out-of-plane variation of the web without the need to pre-cut the web.
Formed by shape.

FIG. 16 shows that a notch 57 extending in the longitudinal direction from the edge of the web 9 is provided in advance prior to drawing, and the projections 50, 50 are cut when forming the drawn portion 11.
It illustrates a case where the forming on both sides. In this case, the notch 57 and the protrusions 50, 50 can reliably absorb the excess thickness generated in the web 9, and can form the narrowed portion 11 easily and with stable quality.
Can be used for welding iron members such as anchor bolts.

FIG. 17 shows holes 59, 5 such as round holes in advance.
9 is provided on the web 9, and when the narrowed portion 11 is formed,
An example in which the curved portion 15 is formed between the holes 59, 59
Have . In this case, the deformation of the holes 59, 59 can absorb the excess thickness at the time of pressing without notching the edge of the web 9, so that the strength can be stabilized.

It is to be noted that the shaped steel member A with a drawn portion for construction of the present invention A
Is not limited to those formed from H-beams,
It may be made of a channel steel, a channel steel with a lip, or the like.

Further, according to the present invention, the structural steel member with a drawn portion for a building, the joint structure and the method of manufacturing the same are provided by the vertical bar 3 of the panel frame 1.
However, the present invention is not limited to this, and can be used for various purposes, for example, it can be used for columns, beams, and the like forming a frame structure of a house.

[0042]

According to the first aspect of the present invention, a shaped steel member with a drawn portion for building is formed of a shaped steel material and has a drawn portion at an end portion. Further, a deformed portion is formed on the web at the drawn portion. Because it is formed, when forming the squeezed portion, the excess thickness due to compression generated in the web can be absorbed by the deformed portion,
The narrowed portion can be formed easily and with stable quality as compared with the conventional one using cutting and welding, and it can be useful for improving productivity, reducing cost, and the like.

According to the second aspect of the present invention, when the deformed portion extends in the longitudinal direction of the web, the excess thickness can be more reliably absorbed by the deformed portion.

According to a third aspect of the present invention, in the jointed structure of a building-shaped steel member with a drawn portion, the drawn portion is fitted and fixed in a groove of a grooved steel member made of another shaped steel material. Therefore, the strength of the fixed portion of the narrowed portion formed with stable quality can be reliably and stabilized.

According to a fourth aspect of the present invention, a method of manufacturing a shaped steel member with a drawn portion for a building is characterized in that the width of the flange is reduced by compressing the flange on both sides to reduce the width of the flange.
In order to generate a deformed portion in the web at the end of the shaped steel material, the excess thickness due to the compression of the web can be absorbed by the deformed portion, and the drawn portion can be formed easily and with stable quality. Since the deformation is performed at the same time, the production tact time can be improved, the processing cost can be reduced, and the processing quality can be further stabilized because excessive force is not applied to the flange and the web.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a panel frame to which an example of an embodiment of the present invention can be applied;

FIG. 2 is a partial perspective view showing an expansion portion in an enlarged manner.

FIG. 3 is an exploded perspective view schematically showing a pressing device for forming a drawn portion.

FIG. 4 is a cross-sectional view showing a state before a drawing portion is processed.

FIG. 5 is a cross-sectional view showing a state after a drawing portion is processed.

FIG. 6 is a cross-sectional view of a non-drawn portion in a state before the drawn portion is processed.

FIG. 7 is a cross-sectional view of a non-processed part of the drawn part, showing a state after processing of the drawn part.

FIG. 8 is a sectional view and a side view showing another embodiment of the deformed portion.

FIG. 9 is a cross-sectional view and a side view showing another embodiment of the deformed portion.

FIG. 10 is a sectional view showing another embodiment of the deformed portion.

FIG. 11 is a sectional view showing another embodiment of the deformed portion.

FIG. 12 is a cross-sectional view showing another embodiment of the deformed portion.

FIG. 13 is a side view showing another embodiment of the deformed portion.

FIG. 14 is a side view showing another embodiment of the deformed portion.

FIG. 15 is a side view showing another embodiment of the deformed portion.

FIG. 16 simply discloses another embodiment, (A) before production,
(B) is a side view which shows the state after manufacture.

FIG. 17 simply discloses another embodiment, wherein (A) is before production,
(B) is a side view which shows the state after manufacture.

FIG. 18 is a partial perspective view for explaining a conventional technique.

[Explanation of symbols]

 Reference Signs List 9 Web 10 Flange 11 Restricted part 12 Deformed part 13, 14 Grooved shaped steel member A Shaped steel member with constricted part for construction

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Noriaki Masuda 1-4-1 Shinsenri Nishimachi, Toyonaka-shi, Osaka National Housing Industry Co., Ltd. (56) References JP-A-49-74141 (JP, A) Japanese Utility Model Application Sho 57-97626 (JP, U) Japanese Patent Publication No. 47-7620 (JP, B1) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04C 3/04 B21D 7/06 B21D 13/02 B21D 47/01 E04C 2/38

Claims (4)

(57) [Claims] To 1. A consists shape steel having a flange to the web sides and ends, with narrowed portion obtained by subtracting the size of the width sandwiching the both sides of the flange is formed, on the web at the throttle portion, the web Without pre-cutting the web
A deformed section-formed steel member for a building, wherein a deformed portion is formed by out-of-plane deformation of the structure. 2. The shaped steel member with a drawn portion for a building according to claim 1, wherein said deformed portion extends the web in the longitudinal direction. 3. The building according to claim 1, wherein the drawn portion of the building-shaped steel member with a drawn portion according to claim 1 is fitted and fixed in a groove of a grooved shaped steel member made of another shaped steel material. Structure of a shaped steel member with a drawing part for use. The end of 4. A shape steel having a flange to the web sides, while reducing the size of the width sandwiching the flange by compressing across the opposite sides of the flange, the web of the end portion, the web Out-of-plane deformation of web without prior removal
A method for producing a shaped steel member with a drawn portion for a building, wherein a deformed portion is generated depending on the shape.