JPH0781310B2 - Pillar mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is capable of forming a floor body in advance of the installation of a pillar material on a floor in a building constructed by a stacking method, and The present invention relates to a column mounting structure that can improve the efficiency of assembly work and enhance the safety of the work.

[Prior art]

In the multi-storey building H of the dry construction method, for example,
As shown in the figure, in many cases, a so-called stacking method is employed in which the upper-level frame structure F2 is sequentially assembled on the lower-level frame structure F1 that has been erected and framed in advance.

[Problems to be Solved by the Invention]

However, in such a construction method, the assembling of the upper-floor frame structure F2 is conventionally performed prior to laying the upper-floor floor panel P on the lower-floor frame structure F1. The structure becomes unstable, such as a skeleton, which greatly impairs the safety of assembly work and reduces work efficiency. Moreover, this is a pillar material 3B for forming the frame structure F2 on the upper floor during assembly.
It is not possible to form a temporary storage space for the equal frame material on the frame structure F1 below, and therefore it is necessary to lift and carry in the frame material from the lower floor each time, which further contributes to the reduction of the work efficiency. The reason why the frame structure F2 on the upper floor is assembled first is No. 4
As shown in FIGS. (A) and (b), when the floor panel P is laid first, the beam material 2A of the downstairs frame structure F1 and the pillar material for the upstairs
When bolting 3B, since the bolting position is at the back, the insertion gap d of the bolting tool cannot be sufficiently formed between the pillar material 3B and the floor panel P, and the bolting becomes difficult. This is because

The present invention is basically based on the use of a connecting metal fitting on the lower surface of the base plate, to which a nut member is hung at the cutout portion of the floor panel and whose lower end is in contact with the lower plate of the pillar material. An object of the present invention is to provide a column mounting structure that can solve the above problems.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the pillar mounting structure of the present invention is a pillar member in which a rectangular lower plate at the lower end is placed on the upper surface of the flange of a beam made of a shaped steel material having a horizontal flange at the upper end. Is a pillar mounting structure that has a notch formed by notching a portion of the lower plate and is mounted using bolts that pass through the four corners of the lower plate at the notch of the floor panel placed on the upper surface of the flange. In addition, the pillar includes a leg portion connecting a middle plate and the lower plate above and below a vertical plate-shaped rib at a lower end of a long base, and a substrate lower surface having a slit into which the rib is loosely inserted. In the nut member of the connecting metal fitting, which has a nut member that hangs down at the cutout portion and contacts the lower plate at the lower plate and separates adjacent bolts passing through the lower plate, from the bottom to the flange and the lower plate. Pillar material by screwing the bolt that passes It is attached to the beam material.

[Action]

In the pillar mounting structure coupling hardware configured as described above, the rib of the pillar member is loosely inserted into the slit to position and prevent the rib from hanging, and the lower end contacts the lower plate of the pillar member at the notch of the floor panel. The nut member is attached. Therefore, even after the floor panel is laid, even if the insertion gap of the bolting tool cannot be sufficiently formed between the floor panel and the pillar material, the slit of the substrate is used to prevent the beam flange, By screwing the bolts that pass through the plates from below respectively to the nut member, it becomes possible to attach the pillar member to the beam member, stabilize the scaffolding, and form a sufficient temporary space for the frame member. , It is possible to improve the work efficiency while improving the safety of the frame structure assembly work on the floor.

〔Example〕

The pillar mounting structure of the present invention is adopted in a multi-storey building H which is formed by sequentially assembling an upstairs frame structure F2 on a downstairs frame structure F1 as shown in FIG. The case where the pillar member 3B for the upper frame structure F2 is erected on the beam 2A of the first frame structure F1 will be described with reference to the drawings.

The downstairs frame structure F1 is a frame structure for forming the first floor portion in this example, and the beam members 2A are horizontally bridged between the upper ends of the pillar members 3A standing on the upper end of the cloth foundation 5. With the beam 2A
After a floor panel P forming a floor body on the upper floor is laid on the upper surface, a pillar member 3B for forming a frame structure F2 on the floor is bolted by using a coupling fitting 6 according to the present invention.

As shown in FIG. 2, the beam 2A is made of a shaped steel material made of I-shaped steel in which upper and lower flanges 10 and 11 are horizontally provided on the upper and lower ends of a vertical web 9 in this example. As the beam member 2A, a composite beam such as a lattice beam, which is a combination of channel steels and the like, can be preferably used.

Further, the pillar material 3B is a joint pillar having the same shape as the pillar material 3A for forming the downstairs frame structure F1 supporting the beam material 2A at its upper end and having the same height as the height of the upper floor, In the example, at the lower end of a long base 12 made of a rectangular steel pipe having a rectangular cross section, legs connecting a middle plate 13 and a lower plate 15 arranged in parallel with each other and above and below with a leg piece 16 are connected. The part 17 is fixed. The middle plate 13
Is a rectangular plate having the same width as the base 12 and the lower plate 15 having the same width as the flange 10, and is a vertical plate-shaped rib 19 having a height exceeding the height h of the floor panel P described later. ... are integrally connected by the leg pieces 16 projecting in a cross shape. Also, the lower plate 15
Through holes 20 for inserting bolts are formed between the ribs 19 and at the four corners of the lower plate 15.

Further, the pillar member 3B is arranged with the lower plate 15 placed on the pillar standing place Q provided on the upper surface of the upper flange 10, and the floor panel P is arranged on the upper surface of the upper flange 10. It will be laid before the column 3B described above.

The floor panel P includes a base 21 made of a rectangular plate-shaped concrete panel using ALC in this example, and the pillar standing place Q
In the portion of the lower plate 15 facing to the above, the notch 22 is formed by enclosing the pillar standing place Q by notching and enabling the lower plate 15 to be arranged at the pillar standing place Q from above. It

A recess 23 is formed on the upper surface of the base body 21 at a small depth along the cutout edge of the cutout portion 22 to receive the lower surface of the base plate 25 of the coupling fitting 6.

The coupling fitting 6 includes a horizontally long rectangular plate-shaped substrate 25 whose upper surface is aligned with the upper surface of the floor panel P by fitting in the recess 23, and the rib 19 is provided at the front edge of the substrate 25. A slit that allows the substrate 25 to be placed above the lower plate 15 by being loosely inserted.
26 is formed. Further, the coupling metal fitting 6 has a length substantially the same as the height h of the floor panel P at a position where the adjacent bolts 31, 31 passing through the through holes 20, 20 are spaced apart from each other on the lower surface of the substrate 25. Nut members 29, 29 having a lower end in contact with the lower plate 15 and having screw holes 27 opened are attached to the lower portion at the portion 22. Therefore, the pillar member 3B has a hole 30 formed through the upper flange 10 and the through hole 20 of the lower plate 15 inserted from below, and a bolt 31 screwed into the nut member 29. Thus, the upper flange 10 and the lower plate 15 can be connected without being interfered with by the floor panel P.

Further, in this example, the coupling metal fitting 6 functions as a fixing plate of the floor panel P which supports the upper surface of the floor panel P by preventing the positional displacement thereof by fitting the base plate 25 into the recess 23.
The slit 26 also acts as a rotation stopper for the substrate 25 when the bolt 31 is screwed.

As shown in FIG. 2, such a coupling fitting 6 is used facing each other in the front-rear direction at right angles to the longitudinal direction of the beam 2A, and is also used facing left and right as indicated by the alternate long and short dash line in FIG. You can also do it.

〔The invention's effect〕

As described above, since the pillar mounting structure of the present invention uses the coupling fitting in which the lower end of the board having the slit in which the rib of the pillar is loosely inserted, the nut member whose lower end is in contact with the lower plate of the pillar is suspended. Even if the floor panel is laid on the beam member before the pillar member is attached, the co-rotation of the board can be prevented by screwing the bolt that passes through the flange of the beam member and the lower plate from below to the nut member. Preventing by the rib loosely inserted in the slit, you can attach the pillar material to the beam material without interfering with the floor panel,
It becomes possible to lay a floor panel prior to the installation of pillars, stabilize the scaffolding, and safely and efficiently perform the work of assembling the frame structure on the upper floor, and temporarily place the frame structure material for the structure structure. A sufficient space can be formed, and the working efficiency can be further improved, and many effects can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a building to which the present invention is applied, and FIG.
FIG. 3 is an exploded perspective view showing an embodiment of the present invention, FIG. 3 is a sectional view thereof, and FIGS. 4 (a) and 4 (b) are an exploded perspective view and a sectional view for explaining a conventional technique. 2A ... Beam, 3B ... Column, 6 ... Coupling, 10 ... Flange, 12 ... Base, 13 ... Middle plate, 15 ... Lower plate, 17 ... Leg, 19
...... Rib, 22 ...... Cutout, 25 ...... Board, 26 ...... Slit, 29 ...... Nut member, 31 ...... Bolt, P ...... Floor panel, h ...... Floor panel height.

Claims (1)

[Claims] 1. A column member on which a rectangular lower plate at the lower end is placed on the upper surface of the flange of a beam made of shaped steel having a horizontal flange at the upper end, and a portion of the lower plate is cut away. A column mounting structure for mounting using a bolt passing through the four corners of the lower plate in the notch of the floor panel placed on the upper surface of the flange having a notch formed by The lower end of the base includes a leg connecting the middle plate and the lower plate above and below a vertical plate-like rib, and the lower surface of the substrate having a slit into which the rib is loosely inserted has a lower end that hangs at the notch. A pillar by screwing the bolt that passes through the flange and the lower plate from the bottom to the nut member of the fitting that is attached to the lower plate and that separates the interval between adjacent bolts that pass through the lower plate. Pillar characterized by attaching timber to beam material With structure.