JPH0444545A - Joint of column and beam and reinforcing metal - Google Patents

Abstract

PURPOSE:To make field work easier by a method in which wed-side joint plates and flange-side joint plates, each having bolt holes, are integrated with a reinforcing rib to form a reinforcing metal. CONSTITUTION:In the joint between an H-steel column 1 and beams 2, a web- side joint plate 3a, a flange-side joint plate 3b vertical to the plate 3a, and a reinforcing rib 3c vertical to them are integrated to form a reinforcing metal 3 between the flanges of the column 1 to be connected. By using the metal 3, the plate 3a is contacted with the web 1a of the column 1 and connected by bolts 4 piercing them, and the plate 3b is contacted with the inner surface of the flange 1b of the column 1 and connected by bolts 6 piercing them under a condition that the flange 1b is put between the flanges 5b of T-shaped joint metals 5 such as split tee which contacts with the periphery of the flange 1b.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to the structure of a joint and the joint in the case of joining a column and beam made of H-beam steel using a joint hardware having a T-shaped cross section such as a split tee. This relates to reinforcing hardware used in parts.

[Conventional technology]

Conventionally, when joining columns and beams made of H-shaped steel, bolt joining is often performed using a split tee provided with bolt holes.

In other words, in the case of a column connection, the flange part of the split tee is bolted to the outer surface of the flange of the column as the member to be joined, and the web part of the split tee is bolted along the outer or inner surface of the upper and lower flanges of the beam as the member to be joined. It is joined. In this case, the columns, where large stress transfer takes place,
It is necessary to strengthen the joint between the beams, and conventionally it has been common practice to weld stiffeners and ribs to the inside of the flange of the column to which the split tee is connected. The same applies to the case of passing through a beam, in which case stiffeners and ribs are welded to the inside of the flange of the beam as the member to be joined.

In addition, in Japanese Patent Application Laid-Open No. 60-250147, instead of welding stiffeners and ribs, H-shaped joint fittings are bolted between the flanges of columns that are joined members, and the H-shaped fittings are attached above and below the H-shaped fittings. A structure is disclosed in which the H-shaped joint fittings that abut the web portions of the joining fittings and the webs of the columns are also bolted together.

[Problem to be solved by the invention]

When reinforcing with welded stiffeners and ribs, on-site welding work is required, and multidirectional welding work in narrow areas is complex and time-consuming. In addition, it is a structurally important position, and welding defects pose a major problem.

On the other hand, H described in JP-A-60-250147
Structures using type joint fittings and H-type joint fittings have the advantage that on-site work can only be done by bolting, but since a large number of bolts are used in three directions, the bolts may interfere with each other in a narrow work space. In some cases, it is virtually impossible to drive bolts, and problems such as dimensional errors and slippage in bolt connections must also be taken into consideration.

The present invention aims to solve the above-mentioned problems regarding the reinforcement structure when joining a column and beam made of H-beam steel using a joining hardware having a T-shaped cross section, such as a split tee.

[Means to solve the problem]

Hereinafter, an overview of the present invention will be explained with reference to FIGS. 3 and 4.

Figure 3 shows an overview of the joint between a column and a beam in the case of a through-column type.At the joint between a column 1 and a beam 2 made of H-beam steel, the 7 flange lb of column 1 as a member to be joined is shown in Fig. 3. In between, a web side attachment plate 3a and a flange side attachment plate 3b perpendicular thereto.
Using a reinforcing metal fitting 3 formed by integrating these and a perpendicular reinforcing rib 3c, the web-side attachment plate 3a is brought into contact with the web 1a of the column 1 and joined by a plurality of bolts 4 passing through them. The flange-side attachment plate 3b is brought into contact with the inner surface of the flange 1b of the column 1, and the flange 1b of the column 1 is sandwiched between the flange portion 5b of a joining hardware 5 having a T-shaped cross section, such as a split tee attached to the outer surface of the flange 1b. In this state, they are joined by a bolt 6 passing through them. The beam 2 as a joining member has the outer or inner surface of the upper and lower flanges 2b attached to the web portion 5a of the joining hardware 5 having a T-shaped cross section joined to the outside surface of the flange 1b of the column 1 as described above, and the bolt 7 passing through these. Join by.

In the beam-through type shown in Fig. 4, the part to be joined is 2-7.
A reinforcing hardware 3 is used between the rungs 2b, and the outer or inner surface of the flange 1b of the column 1 as a joining member is aligned with the web portion 5a of the joining hardware 5, and the bolts 7 passing through these are used to join.

The reinforcing hardware 3 used at the joint between the column and the beam is, for example, a flange-side splicing plate 3 that comes into contact with the inner surface of the flange of the member to be joined.
The T-shaped piece is formed into a T-shaped cross section by the flange portion forming b and the web portion forming the reinforcing rib 3c perpendicular to the flange portion, and the web-side splicing plate 3a that comes into contact with the web of the member to be joined is formed. It consists of a plate-shaped piece, and the plate-shaped piece is vertically integrated with the T-shaped piece by welding or the like at one end of the T-shaped piece.
A plurality of bolt holes are formed at the positions of the flange side attachment plate 3b and the web side attachment plate 3a.

In addition, as another example of reinforcing metal fittings, a T-shaped cross section is formed by a flange part forming a web-side splicing plate 3a that comes into contact with the web of the member to be joined, and a web part forming a reinforcing rib 3C perpendicular to the flange part. The plate-shaped piece is made of a T-shaped piece and a plate-shaped piece constituting the flange-side splicing plate 3b that comes into contact with the inner surface of the flange of the member to be joined. You can use the integrated version.

In addition, welding and assembling the flange side attachment plate 3b, web side attachment plate 3a and reinforcing rib 3C,
Alternatively, these may be integrally formed as a casting.

〔Example〕

Next, the illustrated embodiment will be described.

FIG. 1 and FIG. 2 show a concrete example of the joint between a column and a beam according to the present invention.
This is a case of a beam-through type in which columns 1 as joining members are joined above and below.

Since it is a beam-through type, the joining hardware 5 has a T-shaped cross section.
are projected from the upper and lower surfaces of the upper and lower flanges 2b of the beam 2 by a predetermined distance 11i! (distance between the outer surfaces of the flanges of the column 1), two of each are provided, and are joined with bolts 7 so that the flange 1b of the column 1 is sandwiched between a pair of joining hardware 5. In the figure, reference numeral 8 denotes a fixture for erection, which is welded to the web 1a of the column 1.

The reinforcing hardware 3 is attached to the upper and lower columns 1 on both sides of the beam 2, respectively.
A total of four locations are provided at positions connecting the joining metal fittings 5 arranged to join the parts.

The reinforcing hardware 3 in this embodiment is shown in FIG. 6(a), which will be described later.
Corresponding to the reinforcing hardware in (b), it is formed into a T-shaped cross section by the flange part that makes up the flange side attachment plate 3b that comes into contact with the inner surface of the flange of the member to be joined, and the web part that makes up the reinforcing rib 3C perpendicular to the flange part. The T-shaped piece is made up of a T-shaped piece, and a plate-shaped piece constituting the web-side splicing plate 3a that comes into contact with the web of the member to be joined, and the plate-shaped piece is integrated at one end of the T-shaped piece.

Figures 5(a) and 5(c) show an example of a specific configuration of the reinforcing hardware 3, in which a plate-shaped piece 12 perpendicular to the H-beam 11 is integrated with one end of the H-beam 11 by welding. It is.

The H-shaped steel 11 has a plurality of bolt holes formed in its flange, and constitutes a flange-side joining plate 3b that comes into contact with the inner surface of the flange of the member to be joined, and a reinforcing rib 3 whose web part is perpendicular to this.
Configure c. A plurality of bolt holes are also formed in the plate-like piece 12, and constitutes a web-side joining plate 3a that comes into contact with the web of the member to be joined. In this case, since it is dimensionally difficult to process commercially available H-beam steel as the reinforcing hardware 3 for the H-shape steel that constitutes the welded parts, it may be necessary to create a building (H) that matches the dimensions of the welded parts. many.

FIGS. 6(a) and 6(b) show another example of the reinforcing hardware 3, in which a pair of T-shaped pieces 13 each having a T-shaped cross section facing each other with a predetermined gap a in between is attached to one end of the T-shaped piece 13, which is perpendicular to this. The plate-like pieces 12 are integrated by welding.

The flange portion of the T-shaped piece 13 constitutes the flange-side attachment plate 3b, and the web portion constitutes the reinforcing rib 3c. The plate-like piece 12 constitutes a web-side attachment plate 3a. In this case, as the T-shaped piece 13, one cut from commercially available H-shaped steel or a T-shaped steel can be used, and the gap a
By adjusting the above, it is possible to process the H-beam steel to match the dimension between the flanges of the H-shaped steel that constitutes the members to be joined, and it is also possible to easily deal with dimensional errors (distortion, etc.) between the flanges of the roll H or the like.

FIGS. 7(a) and 7(b) show yet another example of the reinforcing hardware 3, in which plate-shaped pieces 15 perpendicular to the T-shaped piece 14 are integrated at both ends by welding. .

The flange portion of the T-shaped piece 14 is attached to the web side splicing plate 3.
a, and the web portion constitutes a reinforcing rib 3C. The plate-shaped piece 15- constitutes the flange side attachment plate 3b. In this case as well, processing can be performed in accordance with the dimension between the flanges of the H-section steel that constitutes the members to be joined.

The reinforcing hardware 3 in FIGS. 8(a) and (b) is shown in FIG. 6(a),
This corresponds to half of the reinforcing hardware 3 in (b). This method can be applied when a joint member such as a pole or pillar is attached only to one side, or when the beam composition is different on the left and right sides, for example.

Similarly, the reinforcing hardware 3 shown in FIG. 9(a) and 7(a) is
).

This corresponds to half of the reinforcing metal fittings 3 of 3).

〔Effect of the invention〕

■ In the joint structure of columns and beams made of H-shaped steel using joining hardware such as split tees, all on-site work, including the installation of reinforcing metal fittings, can be done by bolting using high-strength bolts, etc., making on-site work easier. It becomes easier.

■ There is no need to weld columns or beams, and compared to reinforcing with stiffeners or ribs, the manufacturing cost of steel frames can be reduced, and problems such as welding distortion are eliminated.

■ Regarding reinforcing hardware, the number of bolt joints is kept to a minimum, eliminating problems such as interference between bolts.

■ If the reinforcing hardware is manufactured as a single piece, the number of parts on site will be reduced and it will be easier to handle.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a front view showing one embodiment of the present invention, Fig. 2 is a side sectional view thereof, Fig. 3 is a front view showing an outline of the present invention in a pillar-through type, and Fig. 4 is a front view showing an outline of the present invention in a pillar-through type. The figure is a front view showing the outline of the present invention in a kamitoshi type similar to Fig. 1, and Fig. 5 (a), (b).
) is a plan view and a front view showing one embodiment of the reinforcing hardware used in the joint of the present invention, FIGS. 6(a) and (b) are a plan view and front view showing another embodiment of the reinforcing hardware, and Figure 7 (a
), (b) are a plan view and a front view showing still another embodiment of the reinforcing hardware, and FIG. 8(a). 9(b) is a plan view and a front view showing still another embodiment of the reinforcing metal article, and FIG. 1... Column, 2... Beam, 3... Reinforcement hardware, 4...
Bolt, 5... Joining hardware, 6... Bolt, 7...
Bolt, 11... H-shaped steel, 12... Plate piece, 1
3...T-shaped piece, 14...T-shaped piece, 15
...Plate piece Figure 7 Figure 8 Figure 9 C a

Claims (3)

[Claims] (1) Bolt the flange portion of a joint metal fitting formed in a T-shape in cross section by a flange portion having a plurality of bolt holes and a web portion having a plurality of bolt holes to the outer surface of the flange of a member to be welded made of H-beam steel. The web part is bolted to the outer surface or inner surface of a flange of a joining member made of H-beam steel, and a web side support having a plurality of bolt holes is used at a joint between a column and a beam as a joined member and a joined member. A connecting plate, a flange side connecting plate having a plurality of bolt holes and perpendicular to the web side connecting plate, and reinforcing ribs perpendicular to the web side connecting plate and the flange side connecting plate are integrated. The web-side splicing plate is brought into contact with the web of the member to be joined and joined by a plurality of bolts passing through them, and the flange-side splicing plate is attached to the flange of the member to be joined. Joining of a pillar and a katana, characterized in that the flange of the member to be joined is held between the flange-side splicing plate and the flange portion of the joining member, and is joined by a bolt passing through the flange of the joining member. Department. (2) a T-shaped piece formed in a T-shape in cross section by a flange portion constituting a flange side splicing plate that contacts the inner surface of the flange of the member to be joined, and a web portion constituting a reinforcing rib perpendicular to the flange portion; and a plate-like piece constituting a web-side splicing plate that comes into contact with the web of the member to be joined, and the plate-like piece is vertically integrated with the T-shaped piece at one end of the T-shaped piece. The reinforcing hardware for a joint between a column and a beam according to claim 1. (3) A T-shaped piece formed in a T-shape in cross section by a flange portion constituting a web-side splice plate that contacts the web of the member to be welded and a web portion constituting a reinforcing rib perpendicular to the flange portion; and a plate-like piece constituting a flange-side splicing plate that comes into contact with the inner surface of the flange of the joining member, and the plate-like piece is vertically integrated with the T-shaped piece at both ends of the T-shaped piece. The reinforcing hardware for a joint between a column and a beam according to claim 1.