JPH0833039B2 - Mounting structure for columns and floor panels - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column and floor panel mounting structure used in a steel frame building having a column / beam structure.

2. Description of the Related Art In a building having a steel structure using H-shaped steel columns, a joining plate is previously welded to an end of the H-shaped steel, and the joining plate and a horizontal member such as a beam are joined via bolts. Is done. FIG. 8 shows the joint structure, in which the column (1) made of H-shaped steel is joined so that the web (2) is in the same direction as the beam (3). ), The joint plate (5) is welded in advance across the flanges (4), (4), and the bolt hole (6) formed in the joint plate (5) is used to make the same from the H-shaped steel. The beam (3) is attached to the upper surface of the upper flange (7) by being joined with a bolt (8). (9) is a floor panel, and the floor panel (9)
When a horizontal mounting plate (10) protruding from the end of the column is fixed onto the beam (7), the mounting plate (10) is connected to the coupling plate (of the column (1) at the column (1) portion. It is installed on the upper surface of 5) and fixed with bolts.

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In the above structure, since the mounting plate (10) of the floor panel (9) is installed on the fitting plate (5),
Floor panel (9) by the thickness of the joining plate (5)
Will be higher. Therefore, in this conventional mounting structure, since the height of the floor panel (9) installed in the pillar (1) portion becomes high, the heights of the floor panels (9) are made equal to each other, so that in other portions. However, it is necessary to install a spacer having the same thickness as that of the joining plate (5), which has the drawback of increasing the number of parts and complicating the work. The present invention has been made for the purpose of eliminating such conventional drawbacks.

Means for Solving the Problems In order to solve the above problems, according to the first invention of the present application, in a column made of H-shaped steel composed of a web and flanges on both sides of the web, at least a lower end portion of the column is provided. , A horizontal joint plate divided into the one flange side and the other flange side is fixed, bolted to a horizontal structural member such as a beam or a base by each of these joint plates, and between these joint plates. A mounting plate for the floor panel is installed and joined to the horizontal structural member.

Similarly, in the second invention of this application, in a column of H-shaped steel consisting of a web and flanges on both sides of the web, a horizontal joint plate is fixed to at least the lower end portion of the column across both flanges, The joint plate is used to fix it to a horizontal structural member such as a beam or a base with bolts, and a cutout is provided at the edge of the joint plate on the side of the web. It is characterized by being joined to a structural member.

Operation According to the configuration of the present invention, the mounting plate of the floor panel is directly installed on the beam between the joint plates divided between the flanges or in the notch portion of the joint plate even in the portion where the pillar is provided. Therefore, the mounting plate of this part is installed at the same height as the mounting plates of the other parts.

First Embodiment FIG. 1 shows a first embodiment of the present invention.
(21) is a floor beam of the upper floor of the second floor or higher of the building, and this floor beam (21) uses H-shaped steel in which the flanges (22) and (22) are arranged horizontally. . The column (23), which is also made of H-shaped steel, has one flange (24) and the other flange (24) at its lower end, as shown in FIG.
The joining plates (25) and (25) divided into and are arranged so that the flanges (24) and (24) are located at the center positions of the plates (25) and (25), respectively, and the flange (24) and the web (25). It is welded to both sides. And this joining plate (2
5) (25) is installed on the upper surface of the upper flange (22) of the beam (21) and is joined with the bolt (27). On the lower surface of the lower flange (22) of the floor beam (21), the pillar (23) of the first floor is similarly connected to the flanges (24) (24) through the joining plates (25) (25). And are joined with bolts (27). (28) (28) is the flange (2) of each pillar (23) (23)
Corresponding to 4), the upper and lower flanges (22) (2) of the floor beam (21)
2) A stiffener plate for reinforcement and beam joints installed between the two.

Reference numeral (30) is a concrete floor plate in which mesh-shaped reinforcing bars (31) are reinforced, and mounting plates (31) and (31) are projected at the ends of these floor plates. (31) to the upper flange (22) of the floor beam (21)
(22) Installed on the upper surface and fixed with bolts (33) as in the past. In this case, in the pillar (23) portion, as shown in FIG. 2, the floor beam (21) is provided between the joint plates (25) (25) divided into the flanges (24) (24). ) Of the upper flange (22) is exposed, and by installing the mounting plate on this part,
This floorboard (30) is installed at the same height as the floorboards (30) of other parts. The mounting plate (3) is shown at (34) in FIG.
It shows the bolt holes formed in the upper flange (22) for fixing 1).

FIG. 4 to FIG. 7 show a pillar which is embodied according to the second invention of this application. In this embodiment, an integral joint is made across the lower ends of the flanges (24) (24). Weld plate (25) to attach it, and then join plate (25)
A cutout (36) for installing the attachment plate (31) is formed in the edge portion on the side of the web (26). In this case, the notches (36) are formed on both sides of the web (26), but if the floor board (30) is installed on only one side of the web (26), only one side is correspondingly formed. Notches (36) may be formed.

5 to 7 show the joint plate (25) of FIG.
Shows the structure of attachment to the pillar (23). Fig. 5 shows the ends of the flanges (24) and (24) fixed by butt welding. The flanges (24) and (24) are beveled by cutting the tip end diagonally, and the inside The backing plate (37) is fixed and butt welded (38) from the outside. In order to fix the backing plate (37), both ends of the web (26) in the width direction are cut out into semicircular scallops (39). The middle portion of the web (26) is fixed to the joining plate (25) by fillet welding.

The butt welding shown in Fig. 5 above can be applied to large buildings with high joint strength, but on the other hand, the scallop (3
The processing of 9) and the special processing for welding such as fixing the backing plate (37) are required, resulting in high cost. Further, the presence of the backing plate (37) hinders the work of inserting the bolt (27) into the bolt hole, or the butt welding has a problem that it is difficult to robotize the work. In contrast,
In FIGS. 6 and 7, instead of the butt welding, fillet welding (4) is performed over the entire circumference of the web (26) and the flange (24).
It is fixed at 0), and it has sufficient strength for buildings up to at least the middle floor, can be manufactured at a lower cost than butt welding, and does not require a backing plate (37). In the case of FIG. 3, the middle portion of the web (26) cannot be welded, but if there is no problem in strength,
Similarly, fillet welding is also possible.

EFFECTS OF THE INVENTION As described above, according to the present invention, the joint plate for attaching to the beam is divided into each flange side of the column made of H-shaped steel, or a notch is provided in the edge portion on the side of the web. ,
Since the floor plate mounting plate is installed between the joint plates or in the notch, the height of the floor plate of the pillar portion can be made the same as the height of the floor plates at other positions. Therefore, unlike the related art, it is not necessary to provide a spacer in another portion to make the height of the floorboard uniform, and there is an effect that the number of parts is reduced and the number of working steps is reduced accordingly.

[Brief description of drawings]

FIG. 1 is a perspective view of a main portion of a column-beam-floor plate joint portion showing an embodiment of the present invention, FIG. 2 is a plan view of the joint portion shown across the pillar, and FIGS. FIG. 5 is a perspective view of a lower end portion of a pillar showing an embodiment of the present invention, and FIG. 5 is a side view of an embodiment in which a pillar and a joining plate are partially fixed by butt welding
FIG. 7 is a side view of an embodiment in which a pillar and a joining plate are fixed to each other by fillet welding, FIG. 7 is a cross-sectional plan view of FIG. 6, and FIG. 8 is a perspective view of essential parts showing a conventional pillar mounting structure. is there. (21) …… beam, (23) …… column, (24) …… flange,
(25) …… Joining plate, (26) …… Web, (27)…
… Bolts, (30) …… Floor plate, (31) …… Mounting plate, (36) …… Notches, (40) …… Filled part.

Claims (2)

[Claims] 1. A column made of H-shaped steel comprising a web and flanges on both sides of the web, and a horizontal joining plate divided into the one flange and the other flange side at least at the lower end of the column. It is fixed and bolted to each horizontal structural member such as a beam or a base by each of these joint plates, and the mounting plate of the floor panel is installed between these joint plates to join the horizontal structural members. Characteristic pillar and floor panel mounting structure. 2. An H-shaped steel column composed of a web and flanges on both sides of the web, wherein a horizontal joint plate is fixed to at least the lower end portion of the column across both lounges, and a beam is provided through this joint plate. Or, it is fixed to a horizontal structural member such as a base with a bolt, and a cutout is provided in the edge portion of the joining plate on the side of the web, and a mounting plate of the floor panel is installed in this cutout portion to join the horizontal joining member. Column and floor panel mounting structure characterized by.