JPS60250147A - Connection structure of iron wire member - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a joint structure between a steel frame member, such as a column and a beam or a beam and a beam side member.

Problems to be Solved by the Invention In conventional steel structure columns and beams or joints between beams, reinforcing the areas where out-of-plane concentrated force of the H-beam acts acts is to A structure in which a reinforcing plate having orthogonal surfaces is inserted into a groove of an H-beam and welded to secure the reinforcing plate, that is, a structure in which a weld stiffener is provided, is often used.

However, the above structure requires a stiffener plate cutting and welding process. Furthermore, welding is complicated as it involves a wide variety of welding directions, and requires a large number of man-hours since it is carried out in a narrow area. Additionally, the stiffener point attachment point is structurally important and must have sufficient strength, but it is easily susceptible to defects as it is welded. In addition, many weld lines are adjacent to each other in columns, beam joints, etc., and many welds are performed under highly restrictive conditions, which may lead to accidents such as weld cracks.

The present invention eliminates the drawbacks of the conventional structure and provides a reinforced structure that is simple, easy to construct on-site, and reliable in terms of strength.

Structure of the Invention and Embodiments The gist of the present invention relates to a column-to-beam and beam-to-beam joint structure made of H-beam steel as described in the claims section, and the main points thereof are as follows. - The main part is the H that receives out-of-plane force and compensates for the flange deformation of the H-section steel.
The point is to insert and fix the joint fittings between the flanges of the H-beam steel.

The details will be explained below with reference to illustrated embodiments.

As shown in FIG. 1, the H-shaped joint fitting 1, which is the main component of the joint structure of the present invention, is made of H steel or cast steel.
It is inserted between the grooves or flanges of the H-beam 2 and fixed by bolting. H-type joint fitting 3 is H-type joint fitting 1
It is used as necessary to integrate the web of the H-beam 2 and the web of the H-section steel 2. The filler 4 is for absorbing the dimensional error within the flange of the H-shaped steel 2 and the flange parallelism error of the H-shaped joint 1. Note that if the accuracy of the flange parallelism and height h of the H-shaped joint fitting 1 is increased, the actual error in the internal dimensions of the flange of the H-shaped steel 2 will be 1v or less, so the filler 4
By tightening the bolts, H-type joint fitting 1 can be installed without using
The flange and the H-shaped steel flange can be brought into close contact with each other, and a sufficient joining effect can be obtained. In this case, the distance between the flanges of the H-section steel 2 will shrink by about 1 μ, but this amount is not much different from the amount of shrinkage when welding reinforcement and does not cause any particular problem.

FIGS. 2 to 4 show the present invention at a column-beam joint. H-shaped joint fittings 1 are fixed between the flanges of columns made of H-shaped steel 2 in two stages, upper and lower, and a steel beam 5 is continuously connected to the outside of the mounting position of the H-shaped joining fittings 1. The axial force of the flange of the beam 5 acts as a concentrated force on the column flange, but the flange portion of the H-shaped joint 1 restrains out-of-plane deformation of the column flange. Further, the H-shaped joint 3 transmits the axial force of the column flange to the column web as an in-plane shearing force via the H-shaped joint 1. As a result, a panel zone is formed in the column surrounded by the upper and lower H-shaped joint fittings 1 and the column flange, and the H-shaped fitting 3 also serves as a buckling agent for the panel zone.

By the way, in Fig. 2, the beam 5 is welded directly to the side of the column, whereas in Fig. 3, a cut T-joint 6 is welded to the end of the beam 5.
This joint 6 is tensile bolted to a column. In this case, the fixing bolts for the joint 6 and the H-shaped joint fitting 1 can also be used. In Figure 4, T-shaped hardware is used for the joint 6, and the beam 5 and joint 6 are
In this case, the entire joint can be joined only with bolts, and the columns forming the frame,
Since all of the beam joint fittings are divided, transportation efficiency is excellent, and deformation of the parts during transportation is completely prevented.

FIGS. 5 and 6 show a method for joining three-sided beams, in which an H-shaped joint fitting 11 is further incorporated between the webs of the upper and lower H-shaped joining fittings 1 of the column-beam joint, and This book shows a structure that uses this to connect the same beam or auxiliary material to another.

In FIG. 5, one side of the H-shaped joint 3 is divided, and a second H-shaped joint 11 is fixed vertically between the upper and lower H-shaped joints 1, 1. The beams 5 are connected. In this case, the upper end level of the beam 5 and the other beam 5 and the upper end level of the H-shaped joint fitting 11 can be aligned.

In FIG. 6, the H-shaped joining fitting 3 is not divided, and the H-shaped joining fitting 11, which is connected to the same beam 5, is placed between the upper and lower H-shaped joining fittings 3 and joined together.

Figure 7 shows the H-shaped joint fitting 1 joined to the place 7. The left side of the drawing shows the case where the place 7 is directly connected to the H-shaped joint fitting 1, and the right side shows the H Shape joint fitting 1 and place 7
This shows the case in which these are combined.

Figures 8 to 10 show the invention of a joint between mutually intersecting beams, in which an H-shaped joint fitting 1 is fixed between the flanges of a beam 5 made of H-shaped steel, and this H-shaped joint fitting 1 is The other beam 5
For example, it is one in which beam sub-members are connected.

In particular, FIG. 8 shows a case where the H-shaped joint fitting 3 and the joint plate 8 that connects the other beam 5 fit within the width of the flange of the beam 5. Although the joint plate 8 is shown to be joined by two-plane shearing, it is also possible to join by negative-plane shearing.

Fig. 9 shows a case where the H-shaped joint fitting 3 and the joint plate 8 cannot fit within the width of the flange of the beam 5, in which case the H-shaped joint fitting 1 is extended outside the beam width and the joint plate 8 is placed on the other side. Beam 5
join. If the distance between one beam 5 and the other beam 5 is still too large and a fulcrum is required when laying a deck plate or the like for the floor structure, a fin 9 having the same thickness as the beam flange is used.

Fig. 10 shows a case where the beam 5 and the beam sub-member 5 are joined by one-plane shearing, and the left side of Fig. 10A is the extension of the web of the H-shaped joining fitting 1, and the right side is the upper flange of the H-shaped joining fitting 1. The lower flange of the beam secondary material is notched.

Effects of the Invention This invention has the above-mentioned configuration, and uses H-shaped joint fittings that can be bolted to supplement the joints of steel frame members using H-shaped steel, where out-of-plane concentrated loads act. In particular, it does not suffer from the defects that occur with conventional welded-on stiffeners.

Furthermore, H-shaped joint fittings can be easily mass-produced by cutting or casting rolled H-shaped steel.

In addition, when using T-shaped metal fittings such as split tees to join columns and beams, it is better to use T-shaped metal fittings such as split tees together with bolts. The H-shaped joint fittings overlap each other on flanges to provide reliable reinforcement.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the components of this invention, Figs. 2, 3 and 4 are elevational views showing different embodiments of the column and beam joints, and Figs. Figures 6 A and B are elevational views of the joints between columns and beams, Figure 7 is elevational views of the pillar and beam joints where the places are attached, Figures 8 A and B, Figures 9 and 10. A,
B is an elevational view showing a different embodiment of the joint between the beam and the sub-beam. 1... H-shaped joint fitting, 2... H-shaped steel, 3... H-shaped fitting fitting, 4... Filler, 5.5'...
Beam, 6...Joint, 7...) Race, 8...Joint plate, 9
...Filler, 11...11 type joining fittings. Figure 1 Figure 5 Figure A 3 Figure 5 B Figure 6 B Figure 7 Figure 8 A Figure 8 B Figure 10 A Figure 10 B

Claims (4)

[Claims] (1) A steel member characterized in that H-shaped joint fittings are fixed vertically between the flanges of a column made of H-shaped steel, and a steel beam is continuously connected to the outside of the H-shaped joint fitting position. Joint structure. (2) H-shaped joint fittings are fixed vertically between the flanges of columns made of H-shaped steel, and a steel beam is continuously connected to the outside of the H-shaped joint fittings, and between the webs of the H-shaped fittings. A joint structure for steel frame members, characterized in that an H-shaped joint fitting is fixed to the metal member, and a steel beam in the other direction is connected to the H-shaped joint metal fitting. (3) A joint structure for steel frame members, characterized in that an H-shaped joint fitting is fixed between the flanges of a beam made of H-shaped steel, and a steel beam in the other direction is connected to this H-shaped joint fitting. (4) When fixing the H-shaped fitting to the H-shaped steel, overlap the flange of the H-shaped fitting and the flange of the H-shaped steel and bolt them together, and connect the web of the H-shaped fitting to the web of the H-shaped steel.
Joint structure 0 of steel frame members according to claim 1, 2 or 3, characterized in that the joint is bolted through a shaped joint fitting.