JP6701809B2 - Joint structure of H-section steel and H-section steel used therefor - Google Patents

Description

  The present invention relates to an H-section steel joint structure and an H-section steel used for the same, and particularly to an H-section steel joint structure that facilitates connection work and allows rigid joints during on-site construction, and the joint structure thereof. H-section steel used for.

  Conventionally, when building a frame structure such as a building or plant equipment, due to transportation problems and crane operation problems, the steel members that make up the frame structure are divided into appropriate sizes and manufactured. It is often the case that the steel frame members are transported from the country to the site and assembled there.

  Conventionally, when assembling a steel beam member made of H-section steel, as shown in FIGS. 1 to 3, the H-section steel is joined by bolts using an attachment plate. FIG. 1 is a schematic top view of the H-section steel 10 viewed from the flange surface of the flange portion 1 on the side opposite to the surface on which the web portion is present. The broken line portion represents the position of the web portion 2 existing on the back side of the flange portion 1 when facing the plane of the drawing. The H-shaped steel 10 is provided with bolt holes 7.

  FIG. 2 shows two H-section steels 10 and 10′ arranged with their ends in the axial direction facing each other, and the flange portions 1 and 1 so as to straddle the ends of the two H-section steels 10 and 10′. It is an upper surface schematic diagram of two H-section steel 10 and 10' which has the attachment plate 6 arrange|positioned on it.

  FIG. 3 shows that the attachment plate 6 is arranged on the flange portions 1 and 1′ and the web portions 5 and 5′ so as to straddle the ends of the two H-section steels 10 and 10′, and the bolts 8 and 8′ are used. It is the side surface schematic diagram which saw two fixed H-section steels 10 and 10' from the web surface of a web part. In this case, the bolts 8 and 8'for joining the addition plate 6 and the H-section steel 10 and the addition plate 6 and the H-section steel 10' in a symmetrical manner are required, and the number of bolts increases, so that it takes time and labor for processing. .. Furthermore, when joining the H-section steel and the additional plate using bolts, it is necessary to horizontally support the H-section steel so that the ends in the axial direction of the member face each other, and to perform alignment. It was long and needed heavy equipment. For such a problem, some joint structures of H-section steel have been proposed so far.

  In Patent Document 1, a Z-shaped joining plate is fixed to a supporting plate forming an H-shaped steel groove plate, and a plate to be joined is fixed to another supporting plate forming another H-shaped steel groove plate to form a joining plate. It describes a joining structure in which the plates to be joined are stacked, fastened with a plurality of bolts and nuts, and two H-section steels are joined and integrated. According to the joining structure of Patent Document 1, if one H-section steel is fixed, the other H-section steel can be supported simply by placing it on one H-section steel, so that the positioning is easy. Therefore, the working time can be shortened. In addition, since the two H-shaped steels can be directly joined by bolts, the number of bolts used can be reduced, and the working time can be reduced accordingly.

  Patent Document 2 describes that an extension portion of a lower flange portion is provided at an end portion of one steel beam member, and a cutout portion of the lower flange portion is provided at an end portion of the other steel beam member. At the time of assembling one steel beam member and the other steel beam member, with one steel frame beam member's extension part receiving the end of the other steel beam member from the lower side, Since the end portion and the end portion of the other steel beam member are connected to each other, the end portion of the steel beam member does not rock in the vertical direction, the end portion can be easily aligned, and the working time can be shortened.

JP-A-62-45846 JP, 2003-96908, A

  However, in the joint structure described in Patent Document 1, it is necessary to manufacture and fix the joint plate and the jointed plate, and it takes time and labor to process them. Further, although the H-shaped steel web portions are joined to each other, the flange portions are not joined to each other, so that a bending moment cannot be transmitted between the flange portions.

  In the joint structure described in Patent Document 2, an attachment plate is required to join the flanges of two steel beam members, and the flange and attachment plate of one steel beam member and the flange of the other steel beam member are attached. Since it is necessary to join the plates with bolts, a large number of bolts are required, and accordingly, it takes time and labor for processing.

  In this way, at the joint of two H-shaped steels, it is possible to reduce the number of parts such as attachment plates and bolts, reduce the labor, simplify the alignment during construction, and transmit the bending moment. A joint structure of H-shaped steel is required.

  The present inventors have found a new joint structure for H-section steel in view of the above problems.

The present invention includes each of the following inventions:
(1) A joining structure in which two H-section steels are joined at the ends in the material axis direction,
Each of the two H-section steels is a web portion, and one flange portion provided at one end of the web portion and the other flange portion provided at the other end of the web portion opposite to the one flange portion. Has a flange,
At least one of the two H-section steels facing each other, the one flange section of the H-section steel, and the other flange section of any one of the H-section steels, at the joining end of the H-section steel. Is provided with a slit portion that extends in the material axial direction from
With the web part inserted in the slit part,
The two H-section steels are combined so that the web surfaces of the web portions of the two H-section steels, the flange surfaces of the one flange portion, and the flange surfaces of the other flange portion face each other. ,
The web portions of the two H-shaped steels, the one flange portion, and the other flange portion are joined together,
Junction structure.
(2) The heights of the web portions of the two H-section steels are different,
The slit portion is provided on both the one flange portion and the other flange portion of the H-shaped steel having a small web portion height.
The joint structure according to the item (1).
(3) The said slit part is provided in the said one flange part of the said one H-section steel, and the said other flange part of the said other H-section steel, The said (1) term. Junction structure.
(4) At least one web portion of the two H-section steels is arranged at a position displaced in the width direction from the central position of the one flange section and the other flange section, and the two H-section steels are arranged. The joining structure according to any one of (1) to (3) above, wherein the one flange portion and the other flange portion are joined to each other such that their outer shapes match each other in the width direction.
(5) The web portions of the two H-section steels, the flange portions of the one, and the flange portions of the other are directly joined to each other, or joined with a filler plate interposed therebetween. The joining structure according to any one of (1) to (4) above.
(6) The joint structure according to any one of (1) to (5), wherein the two H-section steels are lightweight H-section steels.
(7) An H-section steel used for joining at the end in the material axis direction to an end in the material axis direction of another H-section steel,
A web portion and one flange portion provided at one end of the web portion, and the other flange portion provided at the other end of the web portion opposite to the one flange portion,
At least the one flange portion of the one flange portion and the other flange portion is provided with a slit portion for inserting the web portion of the other H-section steel, the slit portion extending in the material axis direction from the material end. Has been
H-section steel.
(8) The H-section steel according to the item (7), wherein the web portion of the H-section steel is arranged at a position displaced in the width direction from the center position of the one flange portion and the other flange portion.
(9) The H-section steel according to (7) or (8) above, which is a lightweight H-section steel.

  According to the present invention, it is possible to obtain an H-section steel joint structure in which the number of parts and the labor required for processing are small, alignment during construction is easy, and a bending moment can be transmitted.

FIG. 1 is a schematic top view of a conventional H-section steel viewed from the flange surface of a flange portion. FIG. 2 is a conventional H-section steel in which the ends in the axial direction of the material are arranged to face each other, and an H-section steel in which an additional plate is arranged on the flange portion so as to straddle the ends of the H-sections that face each other. FIG. FIG. 3 is a schematic side view of two H-section steels having an attachment plate arranged on the flange portion and the web portion and fixed with bolts, as viewed from the web surface of the web portion. FIG. 4 is a schematic top view of an H-shaped steel in which a flange portion is provided with a slit portion, as viewed from the flange surface of the flange portion. FIG. 5 is a schematic cross-sectional view of an H-shaped steel having a flange portion provided with a slit portion as viewed from the end face in the material axis direction. FIG. 6 is a schematic top view of the joint structure of Embodiment 1 as viewed from the flange surface of the flange portion of the H-section steel. FIG. 7 is a schematic side view of the joint structure of the first embodiment as viewed from the web surface of the H-section steel web portion. FIG. 8 is a schematic cross-sectional view of the joint structure of Embodiment 1 as viewed from the end face of the H-section steel in the material axis direction. FIG. 9 is a schematic cross-sectional view of the joint structure as seen from the end face in the material axis direction when the height of the web portion of the H-shaped steel having a large web portion height is further increased in the joint structure of FIG. 8. FIG. 10 is a schematic cross-sectional view of the H-shaped steel 100 in which the flange portion 11 is provided with the slit portion 13 as seen from the end face in the material axis direction. FIG. 11 is a schematic cross-sectional view of an H-shaped steel 100' having a slit portion 14' provided on the flange portion 12' as seen from the end face in the material axis direction. FIG. 12 is a schematic cross-sectional view of the joint structure of Embodiment 2 as seen from the end face of the H-section steel in the material axis direction. FIG. 13 is a joint structure viewed from the end face in the axial direction of the member in the case where the height of the web portion of the other H-section steel is made larger than the height of the web portion of one H-section steel in the joint structure of FIG. 12. FIG. FIG. 14 is a joint structure in which the web portion of the H-section steel is arranged at a position displaced in the width direction, and the flange portions at the two ends of the two H-section steels are joined so that their outer shapes match each other in the width direction. FIG. 4 is a schematic top view of the H-section steel as viewed from the flange surface of the flange portion. FIG. 15 is a schematic cross-sectional view of an H-section steel having a slit section provided in the flange section adjacent to the fillet at the joint section between the web section and the flange section, as seen from the end face in the material axis direction of the H-section steel. .. FIG. 16 is a schematic cross-sectional view of two H-shaped steels in which web portions are joined with a filler plate sandwiched therebetween, as seen from the end face in the material axis direction. FIG. 17 shows two H-section steels in which, in the joint structure of FIG. 12, the other H-section steel has a fillet at the joint between the web portion and the flange portion, and the flange portion is joined with the filler plate interposed therebetween. FIG. 3 is a schematic cross-sectional view as seen from the end face in the material axis direction. FIG. 18 shows a joining structure in which the height adjusting plate is arranged on the flange portions 11 and 12 having a small web portion height in the joining structure of FIG. 7, and the flange surfaces of the flange portions are aligned with each other. It is the side surface schematic diagram seen from the web surface of the web part of H-section steel. FIG. 19 is a schematic view of a building including joists and beams in which the joining structure according to the present invention can be used.

  The present inventor has a joining structure in which two H-section steels are joined at the end portions in the material axis direction, and is provided at the end portion in the material axis direction of the flange portion of one H-section steel, and the material end on the joining side. The joining structure in which the web portion of the other H-shaped steel is inserted into the slit portion extending in the material axial direction from the flange portions and the web portions of the end portions of the two H-shaped steels are overlapped and joined. Was newly found.

  The present invention is a joining structure in which two H-section steels are joined at ends in the material axis direction, and two H-section steels are respectively provided with a web portion and one flange portion provided at one end of the web portion, And a flange portion provided on the other end of the web portion opposite to the one flange portion, and at least one flange portion of one of the two H-section steels facing each other. , And the other flange portion of one of the H-section steels is provided with a slit portion extending in the material axis direction from the joining-side material end of the H-section steel, and the web portion is inserted into the slit portion. In the state, the two H-section steels are combined so that the web surfaces of the two H-section steels face each other, the flange surfaces of one flange section, and the flange surfaces of the other flange section face each other. A joint structure in which two H-shaped steel web portions are joined together, one flange portion is joined together, and the other flange portion is joined together.

  In the joint structure of the present invention, the web portion of the other H-section steel is inserted into the slit portions provided in the flange portions at both ends of the one H-section steel web portion, or the other H-section steel web portion is formed. The web part is inserted into the slit part provided in one flange part of one H-section steel, and the web part of one H-section steel is provided in the other flange part of the other H-section steel. The two H-section steels are combined so that the web surfaces of the two H-section steel web portions face each other, the flange surfaces of one flange portion, and the flange surfaces of the other flange portion face each other. Two H-shaped steel web portions are joined together, one flange portion is joined together, and the other flange portion is joined together.

  The joining of the web portions and the flange portions of the two H-shaped steels can be performed by a desired method such as bolt joining, welding, rivet joining, high-strength bolt joining, or the like that can obtain rigid joining. For example, in the case of bolt joining, bolt holes for bolt joining as shown in FIG. 1 are provided at the ends of the flange portion and the web portion. The bolt holes are preferably (2.5 x bolt diameter) to (2.5 x bolt diameter) to (2.0 x bolt diameter) to positions (1.5 x bolt diameter) to (2.0 x bolt diameter) from the ends of the flange portion, the web portion, and the slit portion. For example, 2 to 5 rows are provided at the end of each H-section steel at intervals of 3.0×bolt diameter) depending on the proof stress required for joining. The clearance of the bolt hole is preferably 0 to 2.0 mm.

  According to the joining structure of the present invention, the flange portions and the web portions of the end portions of the two H-shaped steels to be joined are joined together without the interposing plate. When joining a H-section steel using a conventional addition plate as shown in FIG. 3, when fixing the joint portion with a bolt, stress transmission is required at the connection between one H-section steel and the addition plate. The stress transmission was required in the joining of the plate and the other H-shaped steel, and the stress transmission was required twice in total. According to the present invention, the addition plate is not required, and the flange portions and the web portions can be joined together without using the addition plate. Therefore, the number of bolts can be reduced as compared with the conventional joining structure using the addition plate. It can be halved. The flange portions and the web portions of both H-section steels may be directly joined to each other by their flange surfaces and web surfaces being directly joined to each other, and a filler plate may be sandwiched between the flange surfaces and the web surfaces. You may join with.

  According to the joint structure of the present invention, the web portion of the other H-section steel is inserted into the slit portion provided in the flange portion of the H-section steel at the time of construction so that the H-section steels are assembled and temporarily supported. Therefore, not only the alignment in the height direction of the H-section steels, but also the alignment in the width direction and the material axis direction becomes easy or unnecessary, and the ends of both H-section steels can be easily joined. it can. According to the present invention, the positioning of the H-section steel is easy or unnecessary, so that it is not necessary to support the H-section steel with a heavy machine or the like at the time of positioning and joining, and the efficiency of construction work can be improved.

  According to the joining structure according to the present invention, since the flange portions and the web portions at the end portions of both H-section steels are joined together without the interposing plate, the flange portion of one H-section steel and the H-section of the other H-section steel are joined. Since a force can be transmitted between the flange portion of the shaped steel and the web portion of one H-shaped steel and the web portion of the other H-shaped steel, the stress of the entire cross section of the H-shaped steel can be Can be transmitted from one H-section steel to the other H-section steel. That is, a rigid joint can be obtained which can transmit a bending moment.

  In the joining structure of the present invention, H-section steel in which a slit portion is provided at the end portion of the flange portion in the material axis direction is used. The H-section steel has a web portion and one flange portion provided at one end of the web portion, and the other flange portion provided at the other end of the web portion opposite to the one flange portion, and at least , A slit portion extending in the material axial direction from the material end to one flange portion of one of the two H-section steels facing each other and the other flange portion of the one of the H-section steels Is provided. FIG. 4 is a schematic top view of the H-section steel 100 in which the slit portion 13 is provided at the end portion 40 in the material axis direction of the flange portion 11 as seen from the flange surface opposite to the surface where the web portion of the flange portion 11 is present. The figure is shown. The end portion 40 is an end portion in the material axis direction, and is a portion where two web portions and two flange portions of the H-shaped steel overlap each other.

  The slit portion 13 is provided on the flange portion 11 of the H-shaped steel 100 so as to extend in the material axial direction from the material end 60 on the joining side of the H-shaped steel. The material end 60 refers to the end portion of the H-shaped steel end portion 40 in the material axial direction. In FIG. 4, the web portion 15 is indicated by a broken line.

  In the present application, the material axis direction 51 is a direction parallel to the flange surface of the flange portion and the web surface of the web portion, as shown in FIG. 4. The width direction 52 is a direction perpendicular to the material axis direction of the H-section steel and perpendicular to the web surface of the web portion. The height direction 53 is a direction parallel to the web surface of the web portion and perpendicular to the flange surface of the flange portion, and in FIG. 4, a direction perpendicular to the paper surface.

  The width of the slit portion 13 in the direction along the width direction 52 has a dimension that allows insertion of the web portion of the H-shaped steel to be combined, and is preferably the same as the thickness of the web portion to be inserted in the direction along the width direction 52. Or slightly larger, more preferably 0 to 2.0 mm wider than the thickness of the web portion to be inserted. By providing the slit portion having the width dimension in the above range on the flange portion of the H-section steel, the alignment after the temporary support of the H-section steel can be made easier and preferably unnecessary. When there is a fillet at the joint between the flange portion and the web portion of the H-section steel to be inserted, the width of the slit portion 13 can be a dimension that allows insertion including the fillet.

  The slit portion 13 may have a length equal to or longer than the end portion 40 in the material axis direction 51, and preferably has substantially the same length as the end portion 40. More specifically, the slit portion 13 may have a length in the material axis direction 51 that is required by the design of a general bolt joint or the like. The length of the slit portion 13 can be determined according to the length of inserting the web portion of the H-shaped steel to be combined, based on the design of a general bolt joint portion or the like.

The length of the slit portion 13 preferably has a dimension of 1/4 to 2 times the height of the web portion. When joining the two H-section steel web portions and the flange portions by bolt joining, the length of the slit portion 13 is preferably
{(Number of rows of bolts to be fastened-1) x 2.5 x Bolt diameter + 3.0 x Bolt diameter} ~ {(Number of rows of bolts to be fastened-1) x 3.0 x Bolt diameter + 4.0 x Bolt diameter}. By providing the slit portion having the length in the above range in the flange portion of the H-section steel, it is possible to obtain a sufficient length of the end portion where the flange portions of the two H-section steels and the web portions overlap each other. As a result, a joint capable of transmitting the stress of the entire H-section steel from one H-section steel of the two H-section steels to the other H-section steel, that is, a bending moment according to the design can be transmitted. A rigid joint can be obtained more reliably, and if necessary, a joint that does not break until the H-shaped steel reaches a yielding stress and reaches a plastic region where large deformation occurs is achieved.

  The slit portion can be provided in the flange portion by a desired method such as mechanical cutting, gas cutting, laser processing, press processing, punching and the like.

  INDUSTRIAL APPLICABILITY The joint structure according to the present invention can be used for general constructions using H-section steel. When the H-section steel is used for the floor joists, the joint structure according to the present invention can rationalize the structure of the joint section of the H-section steel and rationalize the construction.

  The H-section steel used in the present invention may have commonly used material axis dimensions, web dimensions, flange dimensions, and a ratio of flange width to web height, etc., except that it has a slit portion in the flange portion. It can be, for example, H-section steel defined by JIS G3136, JIS G3106, or JIS G3101.

  The H-section steel can be a lightweight H-section steel. The lightweight H-section steel is an H-section steel having a plate thickness of 12 mm or less in the flange portion and the web portion, which is manufactured by roll forming, assembly by laser welding, assembly by electric resistance welding, assembly by arc welding, or the like. When the H-section steel is a light-weight H-section steel, the joining structure according to the present invention can be preferably used not only for a steel structure but also for a wooden 2×4 construction method incorporating a light-weight H-section steel.

  In the wooden 2×4 construction method in which the lightweight H-section steel is incorporated, the lightweight H-section steel can be used for joists and beams, and the joining structure according to the present invention is applicable to the joining structure of the lightweight H-section steel used for joists and beams. Can be used. For example, by using lightweight H-section steel having excellent bending resistance for the floor joists, it is possible to suppress the deflection, and thus it is possible to realize a large span structure. In the conventional wooden 2×4 construction method, the span is about 3 to 4 m, but by using lightweight H-section steel for the floor joists, the span is increased to about 5 to 8 m, and further to a medium to large span of more than 8 m. It can be expanded, and it becomes easy to construct, for example, a storehouse and a health facility using the wooden 2×4 method.

  FIG. 19 shows a schematic diagram of a building 30 in which the joining structure according to the present invention can be used. As shown in FIG. 19, the joint structure according to the present invention is made of an H-shaped steel such as a connection between joists and joists such as a floor joist 33 on which a floor board 34 is placed, and a connection between beams 31 and 31 that support joists. It can be used for joining.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the second and subsequent embodiments, the same constituent members as those described in the following first embodiment and constituent members having the same functions are designated by the same reference numerals as those of the constituent members of the first embodiment, and their description will be given. May be omitted or simplified. Further, in the drawings for explaining the respective embodiments, the two H-shaped steels to be joined are not particularly distinguished. Even if the two H-section steels in the drawing are left and right interchanged, or even if the two H-section steels are turned upside down, the embodiment is applied. For example, for the description of the embodiments, the two H-section steels to be joined are described as one H-section steel 100 and the other H-section steel 100′, but the other H-section steel 100, one H-section steel. Even if it replaces with 100', it is applied to the embodiment. Similarly, even if the one flange portion and the other flange portion provided in the H-section steel are replaced with the other flange portion and the one flange portion, the embodiment is applied. The same applies to the web portion and the slit portion.

(Embodiment 1)
In the joining structure of the first embodiment, which is a preferred embodiment of the present invention, H-section steel in which slit portions are provided in the flange portions at both ends of the web portion is used. FIG. 4 is a schematic top view of the H-shaped steel 100 in which the slit portions 13 and 14 are provided in the flange portions 11 and 12 at both ends of the web portion, as seen from the flange surface of the flange portion 11, and a cross section seen from the end face in the material axis direction. A schematic diagram is shown in FIG. FIG. 5 is a schematic sectional view taken along the broken line AA′ shown in FIG.

  As shown in FIG. 5, the H-section steel 100 includes a web portion 15, one flange portion 11 provided at one end of the web portion 15, and the other end of the web portion 15 opposite to the one flange portion 11. Has the other flange portion 12 provided in, and the flange portions 11 and 12 are provided with slit portions 13 and 14 extending from the material end 60 in the material axial direction 51.

  In FIG. 5, the slit portions 13 and 14 provided in the flange portion are provided adjacent to the base 19 of the joint portion between the web portion 15 and the flange portions 11 and 12. The joint root 19 refers to a corner portion of a right-angled joint between the vertically intersecting flanges 11 and 12 and the web portion 15.

  6-8, the joint structure of Embodiment 1 is a schematic top view of the flange portion of the H-section steel as seen from the flange surface, a schematic side view of the web portion as viewed from the web surface, and a schematic sectional view of the end face in the material axis direction. The figure is shown. FIG. 8 is a schematic cross-sectional view taken along the broken line A-A′ shown in FIGS. 6 and 7.

  In the joint structure of the H-section steels shown in FIGS. 6 to 8, the heights 63 and 63′ of the two H-section steels 100 and 100′ in the height direction 53 of the web portions 15 and 15′ are different from each other. The slit portions 13 and 14 are provided in the flange portions 11 and 12 at both ends of the H-shaped steel 100 having a smaller height. The height of the web portion is the height of the web portion in the height direction 53 that does not include the thickness of the flange portion in the height direction 53. In FIGS. 6 to 8, the height 63 ′ of the web portion 15 ′ of the H-section steel 100 ′ is the height 63 of the web portion 15 of the H-section steel 100 and the flange portions 11 and 12 in the height direction 53. The joint structure in the case of the same as the total of thickness is shown.

  The web portion 15′ of the H-section steel 100′ having a large web portion height is inserted into the slit portions 13 and 14 provided in the flange portions 11 and 12 at both ends of the H-section steel 100 having a small web portion height. The two H-section steels 100, 100', the web portions 15, 15' of the web surfaces 18, 18', the one flange portion 11, 11' of the flange surfaces 16, 16', and the other flange portion 12 of the two H-section steels 100, 100'. , 12', the two H-section steels 100, 100' are combined so that the flange surfaces 17, 17' face each other, and the web portions 15, 15' of the two H-section steels 100, 100', one side, The flange portions 11 and 11' are directly joined to each other and the other flange portions 12 and 12' are directly joined to each other.

  Since the flange portions and the web portions are joined to each other without the intervening plate, the number of bolts can be reduced by half compared to the conventional joining structure using the adding plate.

  As shown in FIG. 8, since the web portion 15′ of the H-section steel 100′ having a large web portion height is inserted into the slit portions 13 and 14 provided in the flange portions 11 and 12 of the H-section steel 100, At the time of construction, for example, if the H-section steel 100 is fixed to a vertical column or the like so that the axial direction of the material is horizontal, the flange section 11 of the H-section steel 100' can be mounted on the flange section 11 of the H-section steel 100. As it is placed, the web portion 15′ of the H-section steel 100′ is inserted into the slit portions 13 and 14 provided in the flange portions 11 and 12 of the H-section steel 100 to facilitate the H-section steel 100 and 100′. Can be combined with.

  Therefore, the two H-section steels 100, 100' can be easily and preferably not aligned in the height direction, the width direction, and the material axis direction. Moreover, it is not necessary to support the H-section steel with a heavy machine or the like, and the joints of both H-section steels can be easily joined.

  In the joining structure shown in FIGS. 6 to 8, the web portions 15 and 15′ of the two H-shaped steels 100 and 100′, the flange portions 11 and 11′, and the flange portions 12 and 12′ do not have an attachment plate. To be directly contacted with. Therefore, it is possible to obtain a rigid joint that transmits the stress of the entire cross section from one H-section steel to the other H-section steel.

  As described above, since the two H-section steels are not particularly distinguished from each other, the H-section steel 100′ is defined as the H-section steel having the smaller height of the web portion, and the flange portions 11′, 12 at both ends of the H-section steel 100′ are used. Even when the slit portions 13' and 14' (not shown) are provided in the', a joint structure having the same effect can be obtained. As described above, the two H-section steels are not distinguished from each other, and one H-section steel and the other H-section steel are replaced with the other H-section steel and one H-section steel, and the present embodiment is also applied. The same applies to the following embodiments, and the same description will be omitted.

  The slit portion provided in the flange portion is preferably provided adjacent to the root of the joint between the web portion and the flange portion, but is provided at a position away from the root of the joint between the web portion and the flange portion. May be.

  In the joint structure shown in FIG. 8, the height of the web portion 15 of the H-section steel 100 may be smaller, or the height of the web portion 15' of the H-section steel 100' may be larger. FIG. 9 shows a schematic cross-sectional view as seen from the end face in the material axis direction when the height of the web portion 15' of the H-section steel 100' is further increased in the joining structure of FIG.

  In FIG. 9, since the height of the web portion 15' of the H-section steel 100' is large, gaps are formed between the flange portions 11 and 11' and between the flange portions 12 and 12'. The filler plate 21 can be arranged in the gap between the flange portions 11 and 11' and the gap between the flange portions 12 and 12'. By joining the flange portions with the filler plate sandwiched therebetween, the stress can be transmitted from the flange portion of one H-shaped steel to the flange portion of the other H-shaped steel. A gap may be formed only between the flange portions 11 and 11' or between the flange portions 12 and 12'.

  When arranging the filler plates, as shown in FIG. 9, two H-section steels are arranged so that the gaps are symmetrically formed between the flange portions at both ends of the web portion, and the fillers are placed in the respective gaps. It is preferable to arrange the plate 21. However, two H-section steels may be arranged so that a gap is formed only between the flange portions at one end of the web portion, and one of the flange portions, for example, the flange portions 11 and 11′ is directly contacted with each other. Then, the other flange portions 12 and 12 ′ may be joined by sandwiching the filler plate therebetween. The filler plate may be any material that can transmit stress, and is preferably made of the same material as H-section steel.

(Embodiment 2)
In Embodiment 2, which is a preferred embodiment of the present invention, H-section steels in which a slit portion is provided in a flange portion at one end of each of the H-section steels are used. 10 and 11 are schematic sectional views of the H-section steel 100 in which the slit portion 13 is provided in the flange portion 11 as viewed from the end face in the material axis direction, and the H-section steel in which the slit portion 14′ is provided on the flange portion 12′. The cross-sectional schematic diagram seen from the end surface of 100' of the material axis direction is shown.

  The H-section steel 100 includes a web portion 15, and one flange portion 11 provided at one end of the web portion 15 and the other flange provided at the other end of the web portion 15 opposite to the one flange portion 11. The flange portion 11 and the flange portion 12, at least the flange portion 11, is provided with the slit portion 13 extending from the material end 60 in the material axis direction 51.

  The H-section steel 100′ is provided on the web portion 15′, one flange portion 11′ provided at one end of the web portion 15′, and the other end of the web portion 15′ opposite to the one flange portion 11′. The other flange portion 12 ′ is provided, and at least the flange portion 12 ′ of the flange portion 11 ′ and the flange portion 12 ′ is provided with the slit portion 14 ′ extending from the material end 60 in the material axial direction 51. ing.

  In FIGS. 10 and 11, the slit portion 13 provided on the flange portion 11 and the slit portion 14 ′ provided on the flange portion 12 ′ are located adjacent to the root 19 of the joint portion between the web portion 15 and the flange portion 11, respectively. , And is provided at a position adjacent to the root 19' of the joint between the web portion 15' and the flange portion 12'.

FIG. 12 shows a schematic cross-sectional view of the joint structure of Embodiment 2 as seen from the end face of the H-section steel in the material axis direction. In the joint structure of the H-section steels shown in FIG. 12, the heights 63 and 63′ of the web portions 15 and 15′ of the two H-section steels 100 and 100′ are the same,
Slits 13 and 14' are provided on the flanges 11 and 12' at one end of each H-section steel,
The web part 15 of one H-section steel 100 is inserted into the slit part 14' provided in the flange part 12' of the other H-section steel 100', and the web part 15' of the other H-section steel 100' is formed. One of the H-section steels 100 is inserted into the slit portion 13 provided in the flange portion 11 at one end, and the web portions 15, 15' of the two H-section steels 100, 100', the web surfaces 18, 18', one of The two H-section steels 100 and 100' are combined so that the flange surfaces 16 and 16' of the flange portions 11 and 11' and the flange surfaces 17 and 17' of the other flange portions 12 and 12' face each other. Thus, the web portions 15, 15' of the two H-section steels 100, 100', the flange portions 11, 11' on one side, and the flange portions 12, 12' on the other side are joined.

  In the joining structure shown in FIG. 12, the web portions 15 and 15′ of the two H-shaped steels 100 and 100′, the flange portions 11 and 11′, and the flange portions 12 and 12′ are directly connected to each other without using an attachment plate. They are touching and joined.

  According to the joining structure of the second embodiment, as in the first embodiment, the number of bolts can be reduced by half, the positioning can be easily performed, and the rigid joining can be obtained, as compared with the conventional joining structure using the attachment plate.

  In the second embodiment, the heights of the web portions 15 and 15' of the two H-section steels 100 and 100' may be different. As an example, FIG. 13 shows an end face in the axial direction when the height of the web portion 15′ of the H-section steel 100′ is made larger than the height of the web portion 15 of the H-section steel 100 in the joint structure of FIG. The cross-sectional schematic diagram seen from FIG.

  In the joining structure of the H-section steels shown in FIG. 13, the height of the web portion 15′ of the H-section steel 100′ is larger than the height of the web portion 15 of the H-section steel 100, and one end of each H-section steel is The flange portions 11 and 12' are provided with slit portions 13 and 14'.

  Since the height 63′ of the web portion 15′ of the H-section steel 100′ is larger than the height 63 of the web portion 15 of the H-section steel 100, a gap is formed between the flange portions 11 and 11′. A filler plate 21 is arranged in the gap, and the flange portions 11 and 11 ′ are joined with the filler plate 21 sandwiched therebetween. Even when the filler plate 21 is sandwiched, stress can be transmitted between the flange portions 11 and 11'. In FIG. 13, the filler plate 21 is arranged between the flange portions 11 and 11′, but a gap is formed both between the flange portions 11 and 11′ and between the flange portions 12 and 12′. Alternatively, the H-section steels 100 and 100′ may be arranged, and the filler plate 21 may be arranged both between the flange portions 11 and 11′ and between the flange portions 12 and 12′.

  In either of the first and second embodiments, preferably, at least one web portion of the two H-section steels is arranged at a position displaced in the width direction from the center position of the flange portions at both ends of the web portion, The flange portions at both ends of the two H-section steels are joined to each other so that their outer shapes match each other in the width direction. In FIG. 14, the web portion 15 of the H-section steel 100 is arranged at a position displaced in the width direction 52, and the flange portions at both ends of the two H-section steels are joined so that their outer shapes match each other in the width direction 52. The upper surface schematic diagram which looked at the joined structure from the flange surface of the flange part of H-section steel is shown.

  In the first embodiment, the slit portions 13 and 14 provided adjacent to the base 19 of the joint portion between the web portion 15 and the flange portions 11 and 12 of the one H-section steel 100 and the other H-section steel 100 ′ are provided. By inserting the web portion 15', the web surfaces 18, 18' of the web portions 15, 15' of both H-section steels can be directly contacted with each other, and the two web portions of the H-section steels can be directly contacted with each other. Can be joined together. By directly contacting and joining the web portions to each other, the stress can be transmitted from the web portion of one H-section steel to the web portion of the other H-section steel.

  Also in the second embodiment, similarly, the slit portions 13 and 14 ′ provided on the flange portions at one end of each of the H-shaped steels are the base of the joint portion between the web portion 15 and the flange portion 11, and the web portion 15 ′. When it is provided adjacent to the base of the joint between the flange portion 12' and the flange portion 12', the web surfaces 18, 18' of the web portions 15, 15' of the two H-section steels 100, 100' are brought into direct contact with each other. Can be joined together.

  When the fillet is present at the joint between the flange portion and the web portion, the slit portion provided in the flange portion is preferably provided adjacent to the fillet present at the joint portion between the web portion and the flange portion. .. FIG. 15 is a cross-sectional view of an H-section steel having slit portions 13 and 14 provided in the flange portion adjacent to the fillet 20 at the joint portion between the web portion 15 and the flange portions 11 and 12 as viewed from the end face in the material axis direction. A schematic diagram is shown.

  When the other H-section steel web portion 15' is inserted into the slit portions 13 and 14 provided adjacent to the fillet 20 at the joint portion between the web portion 15 and the flange portions 11 and 12, it is A gap is formed between the web surfaces 18, 18' of the web portions 15, 15'. The filler plate 21 can be arranged so as to fill the gap. FIG. 16 shows a schematic cross-sectional view of the joint structure of the H-section steels 100 and 100' in which the web portions 15 and 15' are joined with the filler plate 21 interposed therebetween, as seen from the end face in the material axis direction. By joining the web portions with the filler plate sandwiched therebetween, stress can be transmitted from the web portion of one H-section steel to the web portion of the other H-section steel.

  The H-shaped steel joint structure shown in FIG. 16 is different from the joint structure shown in FIG. 8 in that a joint portion between the web portion 15 and the flange portions 11 and 12 of the H-section steel 100 has a fillet 20 and is adjacent to the fillet 20. The web portion 15 ′ of the H-section steel 100 ′ is inserted into the slit portions 13 and 14 provided by the filler plate 21 in the gap formed between the web surfaces 18 and 18 ′ of the web portions 15 and 15 ′. Is an embodiment in which is arranged.

  Even if the position of the slit portion is shifted from the root of the joint portion between the web portion and the flange portion by providing a fillet at the joint portion between the web portion and the flange portion, it is between the web portions of both H-section steels. By arranging the filler plate in the gap of and joining the web portions with the filler plate sandwiched between them, stress can be transmitted from the web portion of one H-section steel to the web portion of the other H-section steel. it can.

  In FIG. 17, in the joint structure shown in FIG. 12, when the H-section steel 100′ has the fillet 20 at the joint between the web portion 15′ and the flange portions 11′ and 12′, the fillet 20 exists. The cross-sectional schematic diagram which saw from the end surface of the material axis direction of the joining structure which has arrange|positioned the filler plate 21 in the clearance gap between the flanges 11 and 11' which were formed, and the clearance gap between the web parts 15 and 15' is shown. In FIG. 17, the height of the web portion 15 ′ of the H-section steel 100 ′ is larger than the height of the web portion 15 of the H-section steel 100.

  Since the joint portion between the web portion and the flange portion has a fillet, even when a gap is formed between the flange portions and between the web portions, a gap between the flange portions of both H-section steels and By arranging a filler plate in the gap between the web parts and joining the flange parts and the web parts with the filler plate interposed therebetween, the flange part of one H-section steel to the flange part of the other H-section steel The stress can be transmitted to the web section of one H-section steel and the stress can be transmitted from the web section of one H-section steel to the web section of the other H-section steel. In addition, when the width of the slit portion 13 has a dimension that allows the web portion 15′ including the fillet 20 to be inserted, no gap is formed between the flange portions 11 and 11′, and it is not necessary to dispose a filler plate. The height of the web portion 15 ′ of the H-section steel 100 ′ may be the same as the height of the web portion 15 of the H-section steel 100.

  18, the height adjusting plate 25 is arranged on the flange portions 11 and 12 of the H-section steel 100 having a small web portion height 63 in the joining structure of FIG. 7, and the H-section steels 100 and 100′ are arranged. The side view which looked at the joint structure which matched the position of the flange surface of the flange parts 11, 11', 12, and 12' of FIG. 2 from the web surface of the web part of H-section steel is shown. The height adjusting plate is preferably made of the same material as the H-section steel, and the flange portion and the height adjusting plate can be joined by a rigid joint such as a bolt joint, a welding, a rivet joint, or a high strength bolt joint. Can be performed in any desired manner. When the H-section steel having the connection structure according to the present invention is used for a beam or joist by adjusting the positions of the flange portions 11, 11', 12, 12' of the H-section steels 100, 100', It becomes easy to arrange the floor board etc. horizontally.

  As described in Embodiments 1 and 2, the web portions 15 and 15′ of the two H-section steels 100 and 100′, the flange portions 11 and 11′ on one side, and the flange portions 12 and 12′ on the other side are The two H-section steels 100, 100' are preferably joined, but the web portions 15, 15' of the two H-section steels 100, 100', the flange portions 11, 11' of the one and the flange portions 12, 12' of the other are respectively, , They are directly contacted with each other, or they are bonded with a filler plate sandwiched therebetween.

  More preferably, the web portions 15, 15′ of the two H-section steels 100, 100′, the one flange portion 11, 11′, and the other flange portion 12, 12′ are directly contacted and joined. There is.

  The present invention is also an H-section steel used to join the ends of other H-section steels in the direction of the material axis in the direction of the material axis, the H-section steel being provided at the web portion and one end of the web portion. One flange portion, and one flange portion in the web portion and has the other flange portion provided at the other end on the opposite side, at least one flange portion of the one flange portion and the other flange portion, It is intended for H-section steel in which a slit portion extending from the material end in the material axis direction is provided for inserting a web portion of another H-section steel. The H-section steel according to the present invention can be used for the above-mentioned joint structure.

  The web portion of the H-section steel according to the present invention is preferably arranged at a position displaced in the width direction from the center position of the one flange portion and the other flange portion. By arranging the H-section steel according to the present invention with another H-section steel by arranging the web portion at a position deviated in the width direction from the center position of the one flange portion and the other flange portion. The flange portions of the two H-shaped steels to be joined and the flange portions of the other H-shaped steel can be joined to each other so that their outer shapes match each other in the width direction.

  Preferably, a set of H-section steels comprising the H-section steel according to the invention and another H-section steel to be joined can be provided. In the set of the H-section steels of the H-section steel and the other H-section steels according to the present invention, the other H-section steels include the web portion, one flange portion provided at one end of the web portion, and the web portion. It has the other flange part provided in the other end on the opposite side to the one flange part. A set of H-section steels can be used for the above-mentioned joint structure.

  In a set of H-section steels of H-section steel according to the present invention and other H-section steels, preferably, the height of the web portion of the H-section steel according to the present invention is higher than the height of the web portion of the other H-section steels. The slit portion is provided on both of the one flange portion and the other flange portion of the H-section steel according to the present invention. This set of H-section steels can be used in the joint structure of Embodiment 1 as illustrated in FIGS. 8 and 9.

  In a set of H-section steels of the H-section steel according to the present invention and another H-section steel, preferably, a slit is provided in one flange portion of the H-section steel according to the present invention, and the other of the other H-section steels is provided. In the flange portion, a slit portion for inserting the web portion of the H-shaped steel according to the present invention is provided extending from the material end in the material axis direction. This set of H-section steels can be used in the joint structure of Embodiment 2 as illustrated in FIGS.

  In the set of H-section steels of H-section steel and other H-section steels according to the present invention, preferably, the web portions of the other H-section steels are arranged in the width direction from the center position of one flange portion and the other flange portion. It is located at a position deviated from. The web portion of the other H-section steel is arranged at a position displaced in the width direction from the center position of one flange portion and the other flange portion of the other H-section steel, so that the H-section steel according to the present invention is formed. When joined to other H-section steels, one flange portion of each of the H-section steels to be joined and the other flange portion of the other H-section steels can be joined so that their outer shapes match each other in the width direction. .

10 H-section steel 1, 1'Flange section 2, 2'Flange section 5, 5'Web section 6 Attachment plate 7, 7'Bolt hole 8, 8'Bolt 100, 100' H-section steel 11, 11', 12, 12' Flange part 13, 13', 14, 14' Slit part 15, 15' Web part 16, 16', 17, 17' Flange surface of flange part 18, 18' Web surface of web part 19, 19' Web part Root of the joint between the flange and the flange 20 Fillet 21 Filler plate 30 Building 31 Beam 32 Column 33 Floor joist 34 Floor board 40 End 51, 51' Material axial 52, 52' Width 53, 53' Height 60 Edge 63, 63' Web part height

Claims (5)

A joining structure in which two H-section steels are joined at the ends in the axial direction of the material,
Each of the two H-section steels is a web portion, and one flange portion provided at one end of the web portion and the other flange portion provided at the other end of the web portion opposite to the one flange portion. Has a flange,
At least one of the two H-section steels facing each other, the one flange section of the H-section steel, and the other flange section of any one of the H-section steels, at the joining end of the H-section steel. Is provided with a slit portion that extends in the material axial direction from
With the web part inserted in the slit part,
The two H-section steels are combined so that the web surfaces of the web portions of the two H-section steels, the flange surfaces of the one flange portion, and the flange surfaces of the other flange portion face each other. ,
The web portions of the two H-section steels, the one flange portion, and the other flange portion are joined ,
The heights of the web portions of the two H-section steels are different,
The slit portion is provided on both the one flange portion and the other flange portion of the H-shaped steel having a small web portion height.
Junction structure. A joint structure in which two H-section steels are joined at the ends in the material axial direction,
Each of the two H-section steels is a web part, and one flange part provided at one end of the web part, and the other flange part provided at the other end of the web part opposite to the one flange part. Has a flange,
At least one of the two H-section steels facing each other, the one flange section of the H-section steel, and the other flange section of the one H-section steel, at the joining end of the H-section steel Is provided with a slit portion extending in the material axis direction from
With the web portion inserted in the slit portion,
The two H-section steels are combined so that the web surfaces of the web portions of the two H-section steels, the flange surfaces of the one flange portion, and the flange surfaces of the other flange portion face each other. ,
The web portions of the two H-section steels, the one flange portion, and the other flange portion are joined ,
At least one web portion of the two H-section steels is arranged at a position displaced in the width direction from the center position of the one flange section and the other flange section, and one of the two H-section steels The flange portions and the other flange portions are respectively joined so that their outer shapes match each other in the width direction,
Junction structure. The joining structure according to claim 2 , wherein the slit portion is provided on the one flange portion of the one H-section steel and the other flange portion of the other H-section steel. The two web portions of the H-section steel, the one flange portion, and the other flange portion, respectively, are either directly in contact with each other or joined with a filler plate sandwiched therebetween. joint structure according to any one of claims 1-3. The two H-beams are lightweight H-beam, joining structure according to any one of claims 1-4.

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