JPH06316973A - Joint construction of unit structural body - Google Patents

Abstract

PURPOSE:To simplify joint work, and to facilitate the demolition of a building unit or moving work. CONSTITUTION:In joint construction of unit structural bodies connecting a ceiling beam 1a of a first floor (lower floor) unit structural body 1 to a floor beam 2a of a second floor (upper floor) unit structural body 2, bolt insertion holes 3 are formed in horizontal flanges 1FU and 2FL opposed respectively to the ceiling beam 1a and floor beam 2a. A cylindrical body 5 filled with hardening filler is mounted to the lower part of the bolt insertion hole 3 of the ceiling beam 1a, and the inside of the cylindrical body 5 is filled with the hardening filler. A bolt 8 having a downward screw is inserted into the bolt insertion holes 3 of the floor beam 2a and ceiling beam 1a, and the bolt 8 is fixed by solidifying the hardening filler to connect the first floor unit structural body 1 to the second unit structural body 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joining structure of unit structures for joining and fixing unit structures which are vertically stacked.

[0002]

2. Description of the Related Art In a unit type building such as a unit house in which about 80% of the production is industrialized, a unit structure is made in a factory by framing various shaped steel sections, and the ceiling is attached to the unit structure. A building unit is made by installing panel materials such as panels and wall panels. These building units are joined together at the construction site to assemble the building body.

In a multi-storey unit house, etc., building units are stacked, but in general, the building beams located above and below those units generally have a ceiling beam of a lower unit structure and an upper unit structure. It was joined to the floor beams of the body. That is, the flange portions of U-shaped section steels used in those ceiling beams and floor beams are joined together by bolts.

However, this type of joining structure has a drawback in that the ceiling panel and floor panel must be cut out for joining, which makes the work troublesome.

Therefore, for example, Japanese Patent Publication No. 52-40490
As disclosed in Japanese Patent Laid-Open No. 60-181441 and Japanese Patent Laid-Open No. 60-181441, anchor bolts are previously attached to the pillars or beams of one of the upper and lower unit structures by a curable filling material, and the other pillars and beams are also stacked and stacked. A joining structure has been adopted in which the upper and lower unit structures are joined by filling a curable filler. According to this, since the joining work only needs to be filled with the filling material, the work is simple.

[0006]

However, in such a joint structure, once the joints have been made, the surroundings of the bolts are hardened with a hardening filler, so that the building unit is disassembled or relocated. Therefore, there is a problem that the anchor bolt must be cut and the work cannot be performed easily.

The present invention was created in view of such circumstances, and provides a joining structure for a unit structure which is easy to join and can be easily disassembled or relocated to a building unit. Is intended.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a bolt on each of horizontal flange portions of a ceiling beam of a lower floor unit structure and a floor beam of an upper floor unit structure which face each other. An insertion hole is formed, and a cylindrical body that is filled with a curable filler is attached to the lower portion of the bolt insertion hole of the ceiling beam, and the curable filler is filled in the cylindrical body to form the floor beam and the ceiling. A bolt whose screw direction is directed downward is inserted into the bolt insertion hole of the beam, and the bolt is fixed by hardening of the curable filler to join the lower unit structure and the upper unit structure. It is characterized by that.

[0009]

According to the joint structure of the unit structure of the present invention, the curable filler is filled in the cylindrical body attached to the ceiling beam of the lower unit structure. Before the curable filler is cured, the bolt is pushed into the curable filler. Eventually, the curable filler will cure and the bolts straddling the ceiling and floor beams will be fixed without having to be fastened. After the hardenable filler is hardened, a female screw around which the thread of the bolt is screwed is formed. Therefore, the bolt can be removed by turning the head of the bolt.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a joint structure of a unit structure according to the present invention will be described below with reference to the drawings.

First, the structure will be described.

FIG. 3 shows a unit structure U of a unit house.
It is the side view which looked at from the wife side. Reference numeral 1 denotes a first floor (lower floor) unit structure, and 2 denotes a second floor (upper floor) unit structure.

In the second-floor unit structure, a floor beam 2a is joined to a ceiling beam 1a of the first-floor unit structure 1 and stacked on the first-floor unit structure 1.

As shown in FIG. 1, the ceiling beam 1a of the first-floor unit structure 1 and the floor beam 2a of the second-floor unit structure 2 are both U-shaped section steels.

Both ends of the upper horizontal flange portion 1FU of the ceiling beam 1a and the lower horizontal flange portion 2FL of the floor beam 2a which face each other, that is, the columns 4 of the unit structure U are opposed to each other.
Near (see FIG. 3), there is formed a bolt insertion hole 3 whose axis is aligned in the vertical direction.

At the lower portion of the bolt insertion hole 3 of the upper horizontal flange portion 1FU of the ceiling beam 1a, square steel 5 as a tubular body having a U-shaped cross section as shown in FIG. 2B is attached.

As shown in FIG. 1, the square steel 5 is dimensioned so as to fit between the upper horizontal flange portion 1FU and the lower horizontal flange portion 1FL of the ceiling beam 1a.

On the top and bottom of the square steel 5, the upper horizontal flange 1FU or the lower horizontal flange 1FL is provided.
Is provided with a flange f fixed by a rivet R. A flange g fixed to the vertical wall 6 of the ceiling beam 1a by welding is provided on the back surface of the square steel 5.

The square steel 5 having such a structure has a tubular shape and is filled with a curable polymer compound 7 as a curable filler.

On the other hand, the lower horizontal flange portion 2F of the floor beam 2a
A bolt 8 having a screw direction directed downward is inserted into a bolt insertion hole 3 formed in the L and the upper horizontal flange portion 1FU of the ceiling beam 1a.

As shown in FIG. 2A, the head 8a of the bolt 8 is located on the upper surface of the lower horizontal flange portion 2FL of the floor beam 2a with the washer 9 interposed therebetween. In this state, the bolt 8 is fixed by the hardening of the curable polymer compound 7 and the ceiling beam 1a of the first floor unit structure 1 and the floor beam 2a of the second floor unit structure 2 are joined.

Next, the operation (construction) of the joint structure of the unit structure having the above structure will be described.

First, the ceiling beam 1a of the unit structure 1 on the first floor
The curable polymer compound 7 is filled in the tubular portion of the square steel 5 attached to the.

Next, before the curable polymer compound 7 is cured, the bolt 8 is inserted into the bolt insertion hole 3 and the head 8 is inserted.
The a is pushed into the curable polymer compound 7 until it sits on the washer 9.

When left in this state for a predetermined time,
By the hardening of the curable polymer compound 7, the bolt 8 straddling the ceiling beam 1a and the floor beam 2a is completely fixed without the need to fasten it with a tool such as a spanner.

On the other hand, after the curable polymer compound 7 is hardened, a female screw around which the thread of the bolt 8 is screwed is formed. Therefore, this bolt 8
The bolt 8 can be removed by simply turning the head of the head with a spanner or the like.

The present invention is not limited to the above embodiments, and design changes made by those skilled in the art are also included in the technical scope of the present invention. For example, although the square steel is used as the tubular body in the above-described embodiment, it may be a cylindrical tubular steel or the like. Although a curable polymer compound is used as the curable filler, grout or the like used for geological improvement can also be used.

[0028]

As described above, according to the joining structure of the unit structure according to the present invention, the joining operation is simple, and the disassembling and relocating work of the building unit can be performed easily. There is.

[Brief description of drawings]

1 is a sectional view taken along line XX in FIG. 3, showing a main part of a joint structure of a unit structure according to the present invention.

2A and 2B also show a main part of a joint structure of a unit structure according to the present invention, wherein FIG. 2A is a sectional view taken along the line YY in FIG. 1, and FIG. It is a figure.

FIG. 3 is a side view of the unit structure of the unit housing to which the joining structure of the unit structures according to the present invention is applied, as viewed from the end face side.

[Explanation of symbols]

 1 1st floor (lower floor) Unit structure 1a Ceiling beam 1FU Upper horizontal flange part 2 2nd floor (upper floor) Unit structure 2a Floor beam 2FL Lower horizontal flange part 3 Bolt insertion hole 5 Square steel (cylindrical) 7 Curable polymer compound (curable filler) 8 Volts.

Claims (1)

[Claims] 1. A joining structure of a unit structure for joining a ceiling beam of a lower floor unit structure and a floor beam of an upper floor unit structure, wherein the ceiling beam and the floor beam are opposed to each other. A bolt insertion hole is formed in the horizontal flange portion, a cylindrical body for filling a curable filler is attached to the lower portion of the bolt insertion hole of the ceiling beam, and the curable filler is filled in the cylindrical body, A bolt whose screw direction is directed downward is inserted through the bolt insertion holes of the floor beam and the ceiling beam, and the bolt is fixed by curing the curable filler to fix the lower floor unit structure and the upper floor unit structure. A joint structure of a unit structure, which is characterized by joining to a body.