JP7394381B2 - Joint structure of H-beam steel - Google Patents

Description

The present invention relates to a joining structure for H-section steel.

A typical steel frame building is constructed using a rigid frame structure in which H-beam beams are joined (rigidly connected) to vertically erected steel pipe columns. To connect this steel pipe column and H-section steel, normally, as shown in FIG. The flange 22 of the H-section steel 2 and the end of the web 21 are firmly joined to the bracket 12 via the splint plate 13 with bolts 50 and nuts 51.

On the other hand, the above-mentioned steel pipe column 1 usually has a short H-beam bracket 12 joined to the side surface of the steel pipe column 1 at a factory, and is loaded onto a truck and transported to the site. Since the bracket has many protruding parts and is large, it is bulky, and there is a problem that loading efficiency is poor when transported by truck.

In addition, in order to maintain high joint strength at the joint between the bracket 12 and the H-shaped steel 2 of the beam, a large number of splints 13 and many bolts 50 and nuts 51 are used to fix each splint 13. It becomes necessary. Therefore, there are problems in that a very large number of parts are used, which increases costs, and it takes a great deal of effort to join them together.

Furthermore, in the general joint structure in which the front surface and back surface of the flange 22 of the H-beam steel of the bracket 12 and the H-beam steel 2 of the beam are sandwiched between two splints 13 and tightened with bolts 50 and nuts 51, Specifically, members such as the head of the bolt 50, the nut 51, and the splint plate 13 protrude from the surface side of the flange 22. When a flooring material such as a deck plate or a fab deck is laid on such a beam, members protruding from the surface of the flange 22 will get in the way, so a design is required to avoid them. Therefore, it is desired that the surface side of the flange 22 be flat.

To solve this problem, a method has been proposed that involves fixing a split tee to the side of a steel pipe column, sandwiching the upper and lower flanges of the H-section steel between the split tees, and joining them with bolts (see Patent Document 1). reference). According to this proposal, it is possible to reduce the number of splints while maintaining joint strength.

Publication No. 2004-100159

However, in the proposal of Patent Document 1, although the number of splints can be reduced, a special high-strength one-sided bolt is used to satisfy the joint strength between the steel pipe column and the split tee, and the bolt used is Since the number is about the same as before, the cost remains the same.

Further, since the split tee is brought into contact with the upper and lower surfaces of the flange of the H-shaped steel and joined with bolts and nuts, protrusions of members such as bolts and nuts on the flange surface side are unavoidable.

The present invention was made in view of the above circumstances, and has a bonding strength equal to or higher than that of the conventional bonding structure of a steel pipe column and an H-beam beam, and also reduces the number of parts for bonding. It is an object of the present invention to provide a joining structure for H-section steel, which can reduce the amount of friction, facilitate the joining process, and make the surface side of the flange of the H-section steel flat.

The joining structure of H-section steel of the present invention was made to solve the above technical problem, and is characterized by the following features.

Firstly, the H-section steel joining structure of the present invention is an H-section steel joining structure in which an H-section steel beam is joined to a steel pipe column, and in the joint between the steel pipe column and the H-section steel, the The bracket plate includes a bracket plate provided to protrude from a side surface of the steel pipe column, and a transmission plate disposed in close contact with one surface of the web of the H-shaped steel and welded to the back surface of the flange. The bracket plate, the web, and the bracket plate are bolted together with the web surface of the H-beam steel on which the transmission plate is not provided, and the bracket plate is overlapped with the surface of the web on the surface where the transmission plate is not provided.

Second, the H-section steel joining structure of the present invention is an H-section steel joining structure in which a beam of H-section steel is joined to a steel pipe column, and in the joint between the steel pipe column and the H-section steel, the A transmission plate is disposed in close contact with both sides of the web of the H-section steel and is welded to the back surface of the flange; A bracket plate having the same thickness as the total thickness of the transmission plates provided on both sides of the bracket plate, a connecting plate that is in close contact with both sides of the bracket plate, and a surface of the transmission plate on both sides of the web, The bracket plate, the web, and the transmission plate are bolted to each other via the connection plate, with their ends abutting against the ends of the web.

Thirdly, in the H-section steel joining structure of the first or second invention, it is preferable that the bracket plate is welded to the inner diaphragm or the through diaphragm.

Fourthly, in the H-shaped steel joining structure of the first or second invention, at least two or more of the brackets are provided so as to fit into and protrude from slits provided on the side surfaces of the steel pipe column. Preferably, each of the plates is welded within the steel pipe column and at a fitting portion between the slit and the bracket plate.

Fifthly, in the H-section steel joining structure of the first or second invention, the bracket plate and the reinforcing plate, which are provided to fit into the slits provided on the side surfaces of the steel pipe column, are arranged in the steel pipe column. It is preferable that the slit is welded at a fitting portion between the bracket plate and the reinforcing plate.

According to the joint structure of H-section steel of the present invention, it has a joint strength equal to or higher than that of the conventional joint structure of H-section steel that forms steel pipe columns and beams, and the number of parts can be reduced, making the joint construction easy. Yes, it is possible to make the surface side of the flange flat. Furthermore, the steel pipe column used in the present invention can improve loading efficiency on a truck during transportation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic perspective view showing a first embodiment of a joining structure for H-section steel of the present invention. FIG. 2 is a horizontal cross-sectional view of the joining structure of the first embodiment of FIG. 1; FIG. 2 is an explanatory diagram showing a manufacturing process in steel of the joining structure of the first embodiment of FIG. 1. FIG. It is a schematic diagram showing an embodiment of the joining structure of other H-section steel. FIG. 2 is a vertical cross-sectional view of the joining structure of the first embodiment of FIG. 1; FIG. 3 is a cross-sectional view showing a variation of the joining structure of the first embodiment, in which (A) shows a T-shaped joint, and (B) shows an L-shaped joint. It is a schematic perspective view which shows 2nd Embodiment of the joining structure of H-section steel of this invention. 8 is a horizontal cross-sectional view of the joining structure of the second embodiment of FIG. 7. FIG. 8 is a vertical cross-sectional view of the joint structure of the second embodiment of FIG. 7. FIG. It is sectional drawing which shows the variation of the joint structure of 2nd Embodiment, (A) has shown the T-shaped joint, and (B) has shown the L-shaped joint. FIG. 2 is a horizontal cross-sectional view of the joining structure of the first embodiment that does not use a diaphragm. FIG. 7 is a horizontal cross-sectional view of a joining structure according to a second embodiment that does not use a diaphragm. FIG. 3 is a horizontal cross-sectional view of the L-shaped joint structure of the first embodiment including a reinforcing plate. FIG. 7 is a horizontal cross-sectional view of the T-joint structure of the second embodiment including a reinforcing plate. FIG. 2 is a horizontal cross-sectional view of the T-joint structure of the first embodiment applied to a round steel pipe column. FIG. 3 is a horizontal cross-sectional view of the joining structure of the first embodiment in which the protruding position of the bracket plate is provided at the corner. FIG. 2 is a schematic cross-sectional view showing an embodiment in which H-beam steels having different beam heavies are joined to the same column. FIG. 2 is a schematic perspective view showing a conventional joining structure of a steel pipe column and an H-section steel.

The joining structure of the H-section steel of the present invention will be described in detail below based on the drawings. FIG. 1 is a schematic perspective view showing a first embodiment of a joining structure for H-beam steel according to the present invention, and FIG. 2 is a horizontal cross-sectional view of the joining structure of the first embodiment of FIG.

<First embodiment>
The H-section steel joining structure of the first embodiment is an H-section steel joining structure in which a beam of H-section steel 2 is joined to a steel pipe column 1, and a bracket provided so as to protrude from the side surface of the steel pipe column 1. The transmission plate 23 is provided with a plate 10 and a transmission plate 23 which is disposed in close contact with one surface of the web 21 of the H-section steel 2 and is welded to the back surface of the flange 22.

Then, the bracket plate 10, the web 21, and the transmission plate 23 are bolted together with the bracket plate 10 and the surface of the web 21 of the H-section steel 2 on which the transmission plate 23 is not provided overlapped. There is. In the H-beam joint structure of the first embodiment shown in FIGS. 1 and 2, the transmission plate 23 is welded to the back surface of the flange 22 along the longitudinal direction, and is provided in close contact with the surface of the web 21. ing.

The H-section steel 2 is composed of upper and lower flanges 22 and one web 21 that vertically connects the center portion of the cross section of each flange 22. The transmission plate 23 has a shape that closely contacts the surface of the joint between the flange 22 and the web 21. For example, when the joint between the flange 22 and the web 21 has an arcuate cross section, the transmission plate 23 The shape of the corresponding edge is also formed to have an arcuate or chamfered cross-section that closely contacts the edge. Further, in the first embodiment, the transmission plate 23 is joined to each of the upper flange 22 and the lower flange 22 of the H-section steel 2.

Further, the steel pipe column 1 is provided with a bracket plate 10 protruding from the side surface of the steel pipe column 1, but since the bracket plate 10 is an important member that fixes and supports the H-beam 2 as a beam, , it is necessary to firmly fix it to the steel pipe column 1 using a material having strength.

As a specific fixing structure of the bracket plate 10, for example, as shown in FIG. 2 and FIG. Then, the bracket plate 10 can be fitted into the slit 11 and welded, and the bracket plate 10 can be welded and fixed to the inner diaphragm 4 provided inside the steel pipe column 1. Thereby, one end of the bracket plate 10 having strength can be provided so as to protrude from the side surface of the steel pipe column 1.

Here, the formation position of the slit 11, that is, the protruding position of the bracket plate 10, is determined by considering the thickness of the web 21 of the H-beam 2 to be joined, so that the web 21 is located at the center of one side of the steel pipe column 1. , and are arranged offset from the middle position of one side of the steel pipe column 1 (Fig. 2).

As a method for forming the bracket plate 10 of the first embodiment, as shown in FIG. 3(A), first, a joint part in which the bracket plate 10 is fixed to the inner diaphragm 4 is prepared in advance. Next, as shown in FIG. 3(B), the above-mentioned joint part is inserted into the steel pipe column 1, the bracket plate 10 is fitted into the slit 11 provided at the end of the steel pipe column 1, and the steel pipe column 1 is fitted with the bracket plate 10. The wall surface inside the column 1 and the inner diaphragm 4 are welded together, and the fitting portion between the slit 11 and the bracket plate 10 is welded and joined.

Further, two steel pipe columns 1 having the above-mentioned configuration are created, and as shown in FIG. 3(C), the ends of the bracket plates 10 on the protrusion side are butted against each other and the ends are welded and joined. Thereby, the steel pipe column 1 in which the bracket plate 10 protrudes from the side surface of the steel pipe column 1 can be manufactured. The bracket plate 10 according to the present invention having the above configuration is much smaller than the conventional H-shaped steel bracket 12 of the steel pipe column 1, so that it is possible to improve loading efficiency on a truck during transportation. can.

In addition, in this embodiment in which the bracket plate 10 is fixed to the inner diaphragm 4, the bracket plate 10 can be firmly welded to the diaphragm 4 in advance, so that the bending stress from the H-shaped steel 2 is transferred internally to the inner side of the steel pipe column 1. It is sufficient that the welding strength is sufficient to transmit the signal to the inner diaphragm 4 that is in contact with it, and if welding to the inner diaphragm 4 alone is insufficient, welding to the intersecting bracket plates 10 and connecting the intersecting bracket plates 10 and the inner diaphragm 4 is sufficient. Since welding strength can be added, fillet welding or partial penetration welding is sufficient for design, and full penetration welding is not necessary.

Moreover, as the fixing structure of the bracket plate in the present invention, it is also possible to use a joint structure of the H-shaped steel 2 in which the inner diaphragm 4, the bracket plate 10, and the short columns are combined. Specifically, as shown in FIG. 4, for example, two sets of upper and lower blocks 60 are fabricated, each having a bracket plate 10 welded to a predetermined position of the inner diaphragm 4. Further, a short column 61 having a slit 11 at a predetermined position is produced. Then, the block 60 is inserted and fitted into the slit 11 of the short column 61, and the short column 61 and block 60 are welded to produce a short column block part.

Next, the ends of the steel pipe column 1 are directly and completely welded to the top and bottom of the inner diaphragm 4 of the produced short column block part. Thereby, the steel pipe column 1 in which the bracket plate 10 protrudes from the side surface of the steel pipe column 1 can be manufactured.

Furthermore, in another embodiment of the present invention, in addition to fixing using the inner diaphragm 4 described above, it is also possible to fix by welding to a through diaphragm. Specifically, the bracket plate 10 is made of two upper and lower through-diaphragms, and the bracket plate 10, which is the upper and lower part of the H-shaped steel web 21 that was divided into upper and lower parts, is integrated into the upper and lower parts of the inner diaphragm 4, and the bracket that intersects the inner diaphragm 4 in the same way. It is firmly welded to the plate 10 and the upper and lower through diaphragms, and the outer peripheral panel (an L-shaped cross-section steel plate made by dividing a short column: panel in structural calculation) is completely welded to the upper and lower through diaphragms. Meat welding. As a result, a block part (a short column part with a through diaphragm) having the same shape as the steel pipe column 1 with the bracket plate 10 protruding from the through diaphragm is completed.

Next, the ends of the steel pipe column 1 are directly and completely welded to the top and bottom of the through diaphragm of the manufactured block part. Thereby, the steel pipe column 1 in which the bracket plate 10 protrudes from the side surface of the steel pipe column 1 can be manufactured.

In the joining structure of the H-beam steel according to the first embodiment, as shown in FIG. On the opposite side of the web 21 on which the transmission plate 23 is provided, the bracket plate 10 is provided in close contact with the surface of the web 21.

Then, with the bracket plate 10, web 21, and transmission plate 23 stacked one on top of the other, a coaxial through hole is provided, and a high-strength bolt 50 is inserted into the through hole and tightened with a nut 51, so that they are friction welded together. There is. In the above bonded state, one side of the web 21 is one-sided shear friction bonded between the bracket plate 10 and one side of the web 21. With such a joint structure, it is possible to create a simple, low-cost joint structure in which the center misalignment (displacement of the center of stress) between the bracket plate 10 and the H-shaped steel 2 is minimized, and which has the same strength as a conventional joint structure. can.

In the joint structure of the first embodiment, the number and arrangement positions of the bracket plates 10 protruding from the side surface of the steel pipe column 1 can be determined as appropriate according to the design. Specifically, for example, in addition to the cross-shaped joint structure of the first embodiment shown in FIG. 2, a T-shaped joint structure as shown in FIG. The structure of a Shiguchi can be exemplified.

On the other hand, when using a plurality of steel pipe columns 1 of the same type with each of the above configurations, for example, when aligning the column core and beam core, the positions of the bracket plates 10 of two opposing steel pipe columns 1 as shown in FIG. This results in a shift corresponding to the total thickness of the web 21 of the H-shaped steel 2 to be fixed and the transmission plate 23.

In the H-shaped steel 2 that is connected to the two steel pipe columns 1 in such a state, the transmission plate 23 disposed at the end of the H-shaped steel 2 is opposite to the other end with the web 21 in between. Set to position. As a result, even when steel pipe columns 1 of the same type are used, it is possible to join them using the H-section steel 2 of a common configuration.

In addition, since the arrangement position of the transmission plate 23 of the H-beam 2 depends on the protruding position of the bracket plate 10 of the steel pipe column 1 as described above, it can be set appropriately according to the protruding position of the bracket plate 10. can.

In addition, in the H-section steel joining mechanism of the first embodiment, since the transmission plate 23 is welded to the back surface of the flange 22, the surface side of the flange 22 has a flat surface with no protrusions caused by bolts 50 or steps caused by splints, etc. This can improve the workability of the flange 22 on the surface side.

<Second embodiment>
In addition to the first embodiment described above, the joining structure of the H-beam steel of the present invention includes the end of the bracket plate 10 protruding from the side surface of the steel pipe column 1, the web 21 of the H-beam 2, and the end of the transmission plate 23 joined together. It is also possible to adopt a joining structure in the embodiment in which the parts are butted against each other and each is joined by a connecting plate 3. FIG. 7 is a schematic perspective view showing the second embodiment, and FIG. 8 is a horizontal cross-sectional view of the joining structure of the second embodiment shown in FIG.

The mounting structure of the bracket plate 10 in the joint structure of the second embodiment is similar to the first embodiment described above, in which the bracket plate 10 is fitted into the slit 11 and welded, and the inner diaphragm 4 to which the bracket plate 10 is welded is attached. It can be of a structure in which it is welded and fixed within the steel pipe column 1, or a structure in which it is welded and fixed to a through diaphragm. In addition, in the case of the second embodiment, when aligning the column core and the beam core, the end of the bracket plate 10 and the end of the web 21 of the H-shaped steel 2 and the joined transmission plate 23 are arranged so as to butt against each other. Therefore, the protruding position of the bracket plate 10, that is, the formation position of the slit 11 of the steel pipe column 1 is at the center of the width of the steel pipe column 1.

Furthermore, in the H-shaped steel 2 to be joined, the transmission plates 23 are welded and disposed along the longitudinal direction on the back surface of the flange 22 with the transmission plates 23 in close contact with both sides with the web 21 in between.

The connection plate 3 connects the sides of the bracket plate 10 and the transmission plate 23 with the ends of the web 21 and the transmission plates 23 on both sides abutted against each other, and the two connection plates 3 It is arranged so that it is sandwiched from both sides. At this time, the thickness of the bracket plate 10 is set to be equal to the total thickness of the web 21 and the transmission plates 23 on both sides, and the sides are flush with each other when the ends are butted together, so the connection The plate 3 can have a plate-like and elongated shape.

In addition, the connection between the bracket plate 10 and the H-beam 2 by the connection plate 3 is achieved by providing a coaxial through-hole with the bracket plate 10 and the connection plate 3 stacked together, and connecting the web 21, the transmission plate 23, and the connection plate. 3 are overlapped, coaxial through holes are provided, and high strength bolts 50 are inserted into these through holes and tightened with nuts 51 to frictionally join them together.

In the joining structure of H-shaped steel according to the second embodiment, one friction surface of the transmission plate 23 and the connecting plate 3 is joined by one high-strength bolt 50 from both sides of the web 21, so that the H-shaped steel is joined as shown in FIG. The high-strength bolted joint of Steel 2 is a two-sided shear friction weld.

The force transmitted to the transmission plate 23 welded to the four back surfaces of the upper and lower flanges 22 on both sides of the web 21 is transmitted from the weld to the flange 22, but the transmission plate 23 and the web 21 are fastened together with high-strength bolts 50. Therefore, the force transmitted to the transmission plate 23 is also transmitted to the web 21, and the force is transmitted from the joint between the web 21 and the flange 22 to the flange 22.

Due to the connection between the bracket plate 10 and the H-beam 2 by the connection plate 3, the force transmitted from the connection plate 3 to the transmission plate 23 is transmitted to the flange 22 via the weld between the web 21 and the transmission plate 23. Therefore, the bending moment, axial force, and shear force applied to the bracket plate 10 and the H-shaped steel 2 can be transmitted only within the area surrounded by the back side of the flange 22 and the web 21, and the number of parts is reduced. It becomes possible to join with strength equal to or higher than that of the conventional method. This is due to the joint between the transmission plate 23 and the flange 22 by welding, and the overall bonding force of fastening the web 21, the transmission plate 23, and the connection plate 3 together with the high-strength bolts 50.

Also, in the joining mechanism for H-beam steel according to the second embodiment, since the transmission plate 23 is welded to the back surface of the flange 22, the surface side of the flange 22 is flat with no protrusions caused by the bolts 50 or steps caused by splints, etc. This makes it possible to improve workability on the surface side of the flange 22. Further, by welding and providing a plate member 24 having the same width as the flange 22 of the H-beam 2 on the upper edge of the bracket plate 10, the workability of the steel pipe column 1 can be further improved.

In addition, in the joining structure of the H-shaped steel of the second embodiment, when the column core and the beam core are aligned, the protruding position of the bracket plate 10 is the width center of the steel pipe column 1, and the H-shaped steel is connected between the opposing bracket plates 10. Since the structure is such that the steel 2 is disposed, the connection can be made without considering the end configuration of the H-shaped steel 2.

Also, in the joint structure of the second embodiment, the number and arrangement positions of the bracket plates 10 that protrude from the side surface of the steel pipe column 1 can be determined as appropriate according to the design. Specifically, for example, in addition to the cross-shaped joint structure of the second embodiment shown in FIG. 8, a T-shaped joint structure as shown in FIG. The structure of a Shiguchi can be exemplified.

<Bracket plate configuration>
In the structure of the bracket plate 10 in the first and second embodiments, the bracket plate 10 is welded to the inner diaphragm 4 or the through diaphragm in order to obtain a predetermined strength, but no diaphragm is used. Alternatively, the bracket plate 10 may be arranged on the side surface of the steel pipe column 1.

Specifically, at least two or more bracket plates 10 are provided so as to fit into slits 11 provided on the side surface of the steel pipe column 1 so as to protrude, and each of the plurality of bracket plates 10 is welded within the steel pipe column 1. In addition, a configuration in which welding is performed at the fitting portion between the slit 11 and the bracket plate 10 is illustrated.

The above configuration includes, for example, as shown in FIG. 11, slits 11 are provided at predetermined positions on each of the four sides of the square steel pipe column 1 so as to have the same arrangement as in the first embodiment. The bracket plate 10, which is a cross joint part in which the ends of the bracket plates 10 are butted together and welded to form a substantially cross shape, is inserted and fitted into the slits 11 on each side, and the fitting parts are welded. be able to.

In addition, as shown in FIG. 12, two bracket plates 10 are joined and welded at right angles with a cross-shaped notched joint to form a cross joint part so as to have the same arrangement as in the second embodiment. It is also possible to insert and fit into the slit 11 of the steel pipe column 1 and weld.

In still another embodiment, as shown in FIGS. 13, 14(A) and 14(B), the bracket plate 10 and the reinforcing plate 25 are fitted into the slit 11 provided on the side surface of the steel pipe column 1, and the bracket plate 10 and the reinforcing plate 25 may be welded within the steel pipe column 1, and the fitting portions of the slit 11 and the bracket plate 10 and the reinforcing plate 25 may be welded. In this case, it is preferable that the reinforcing plate 25 is set to a length that does not protrude from the side surface of the steel pipe column 1 and welded to the slit 11.

When the bracket plate 10 is provided between the upper and lower steel pipe columns 1 in joining the bracket plates 10 in the embodiment without using a diaphragm, the slits 11 provided in the upper and lower steel pipe columns 1 are The bracket plate 10 is set to half the height, and the bracket plate 10 is inserted into the slit 11 of the upper and lower steel pipe columns 1 and fitted in a sandwiched manner and welded. If further strength is required, the ends of the upper and lower steel pipe columns 1 are joined by welding. On the other hand, when the bracket plate 10 is provided at the top of the steel pipe column 1, the slit 11 provided at the upper end of the steel pipe column 1 is set to the height of the bracket plate 10, and the entire bracket plate 10 is inserted into the slit 11. Insert, fit and weld.

With the above configuration, the bracket plate 10 can be arranged to protrude from the side surface of the steel pipe column 1 with a predetermined strength without providing the inner diaphragm 4 or the through diaphragm.

Note that the joining structure of this embodiment can be applied not only to the square steel pipe column 1 but also to the round steel pipe column 1 as shown in FIG. Furthermore, as shown in FIG. 16, by shifting the position of the slit 11 in the square steel pipe column 1, the bracket plate 10 can be arranged so as to protrude from the corner side.

The joint structure of the H-beam steel of the present invention has been described above based on the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the invention. It is.

For example, in the first and second embodiments described above, the H-beams 2 connected to one steel pipe column 1 are all of the same size, but the bracket that protrudes from one steel pipe column 1 By forming the plates 10 in two or more different sizes, it is possible to connect a plurality of H-shaped plates with different beam widths to one steel pipe column 1. In this case, the height of the upper flange 22 of the H-beams 2 of different beams to be joined can be appropriately set at any height depending on the design of the bracket plate 10.

Normally, when joining H-beams with different beam heights to the same column, it is necessary to install a diaphragm 4 at the same height as the upper and lower flanges 22 of each H-beam, but in the present invention, as shown in FIG. A bracket plate 10 having a shape that matches the beam width of the H-beams 2, 2' to be joined is welded to the two inner diaphragms 4 at the uppermost and lowermost ends of the H-beams 2, 2' to be joined. Just that is enough. Therefore, a large number of diaphragms and associated welding are not required, which is economical.

Further, in the embodiment described above, the bolts 50 and the nuts 51 are used to frictionally join the bolts 50, but the bolts 50 and nuts 51 may be used for shearing joining using fasteners such as rivets. Moreover, although high-strength bolts are normally used as the bolts 50, ultra-high-strength bolts can be used, thereby making it possible to reduce the number of bolts 50. Furthermore, from the viewpoint of increasing the strength of the frictional joint, the surface of the connection plate 3 that is in close contact with the transmission plate 23 or the web 21 may be subjected to red rust treatment or blast treatment.

Furthermore, when the joint between the flange 22 and the web 21 is formed to have an arcuate cross-section, the corresponding edges of the transmission plate 23 and the connection plate 3 that come into close contact with the joint may also be formed to have an arcuate or chamfered cross-section. Interference can also be avoided by applying a washer having a thickness that avoids the arcuate shape of the joint between the flange 22 and the web 21 to the web 21.

According to the H-section steel joint structure of the present invention having the above configuration, it has a joint strength equal to or higher than that of the conventional H-section steel joint structure, the number of parts can be reduced, and the joint construction is easy. Furthermore, it is possible to make the flange surface side flat. Furthermore, the steel pipe column used in the present invention can improve loading efficiency on a truck during transportation.

1 Steel pipe column 10 Bracket plate 11 Slit 12 Bracket (H-shaped steel)
13 Splint 2 H-shaped steel 21 Web 22 Flange 23 Transmission plate 24 Plate member 25 Reinforcement plate 3 Connection plate 4 Inner diaphragm 50 Bolt 51 Nut 60 Block 61 Short column

Claims (5)

An H-beam joint structure in which an H-beam beam is joined to a steel pipe column,
At the joint between the steel pipe column and the H-section steel,
a bracket plate provided to protrude from a side surface of the steel pipe column;
a transmission plate disposed in close contact with one surface of the web of the H-shaped steel and welded to the back surface of the flange;
The bracket plate, the web, and the transmission plate are bolted together with the bracket plate and the web surface of the H-shaped steel on which the transmission plate is not provided overlapped. Joint structure of H-beam steel. An H-beam joint structure in which an H-beam beam is joined to a steel pipe column,
At the joint between the steel pipe column and the H-section steel,
a transmission plate disposed in close contact with both surfaces of the web of the H-shaped steel and welded to the back surface of the flange;
a bracket plate that is provided to protrude from the side surface of the steel pipe column and has the same thickness as the total thickness of the web of the H-beam steel and the transmission plates provided on both sides of the web;
comprising connection plates that are in close contact with both surfaces of the bracket plate and the surfaces of the transmission plate on both sides of the web,
H characterized in that the bracket plate, the web, and the transmission plate are bolted together via the connection plate with the end of the bracket plate and the end of the web abutted against each other. Joint structure of shaped steel. The H-section steel joining structure according to claim 1 or 2, wherein the bracket plate is welded to an inner diaphragm or a through diaphragm. Each of the at least two or more bracket plates provided to fit into and protrude from a slit provided on the side surface of the steel pipe column is welded within the steel pipe column, and the slit and the bracket plate are welded together. The joining structure of H-beam steel according to claim 1 or 2, characterized in that the fitting portion is welded. The bracket plate and the reinforcing plate, which are provided to fit into a slit provided on a side surface of the steel pipe column, are welded within the steel pipe column, and the fitting portion between the slit, the bracket plate, and the reinforcing plate The joining structure of H-section steel according to claim 1 or 2, characterized in that the joint structure is welded with.

Images