JP3207260B2 - Concrete building unit building - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit building having a concrete structure.

[0002]

2. Description of the Related Art In general, in a building having a concrete structure as described in Japanese Patent Application Laid-Open No. 48-23217, as shown in FIG. 5, a lower floor outer wall 1 and an upper floor outer wall 2 are made continuous so as to abut each other. By extending the floor slab 4 at the upper end of the beam 3 to the butting portion of the upper and lower outer walls 1 and 2, a fireproof section is formed.

However, when realizing a concrete structure in a unit building, when the floor height h is to be increased under the unit transportation height limit Hmax, as shown in FIG. The building unit 5B may be installed separately from the building unit 5B. At this time, a gap A occurs between the outer wall panel 6A of the lower floor building unit 5A and the outer wall panel 6B of the upper floor building unit 5B. Therefore, in this case, as shown in FIG. 4, the concrete beam 9 is cast by using the ceiling beam 7 and the auxiliary beams 8A and 8B of the lower-floor building unit 5A as a mold, and the upper end (upper floor) of the concrete beam 9 is cast. Even if the slab level is extended to the outer wall panel 6B of the upper building unit 5B, the gap A between the outer wall panel 6A of the lower building unit 5A and the outer wall panel 6B of the upper floor building unit 5B is obtained.
Must be constructed as a fire-resistant outer wall.

[0004]

However, the outer wall panel 6A of the lower-floor building unit 5A and the upper-floor building unit 5B
When the gap A of the outer wall panel 6B is constructed as a fire-resistant outer wall, even if the gap A is filled with a panel, it becomes heavy and requires fireproof treatment of the joint portion. Become.

An object of the present invention is to complete a fireproof section between the upper and lower outer walls at the same time as placing concrete beams when the outer wall of the lower-floor building unit is separated from the outer wall of the upper-floor building unit.

[0006]

The present invention SUMMARY OF] is positioned adjacent building units in the horizontal and vertical directions, the unit building constructed by pouring a concrete beam along the ceiling beam of the lower story building unit, the lower A gap is formed between the fire-resistant outer wall of the floor building unit and the fire-resistant outer wall of the upper floor building unit ,
The upper end of the concrete beam is extended in the horizontal direction until the refractory outer wall of the upper story building unit to and horizontally the lower end of the concrete beam to the refractory outer wall of the lower story building unit
It is obtained by the so extends.

[0007]

[Action] Keep the transport volume of building units within the transport limit
However, in order to increase the floor height,
A gap is formed between the wall and the outer wall of the upper floor building unit
Also , by extending the upper end of the concrete beam horizontally to the outer wall of the upper-floor building unit, and extending the lower end of the concrete beam horizontally to the outer wall of the lower-floor building unit, Is closed by the presence of the concrete beam, and as a result, the fireproof section can be completed simultaneously with the placement of the concrete beam.

[0008]

FIG. 1 is a schematic diagram showing a first embodiment of the present invention, FIG. 2 is a schematic diagram showing a second embodiment of the present invention, FIG. 3 is a schematic diagram showing a state in which a gap is formed between upper and lower outer walls, FIG. FIG. 5 is a schematic diagram showing a relationship between a concrete beam and a necessary portion of a fire-resistant outer wall, and FIG. 5 is a schematic diagram showing a conventional example.

(First Embodiment) (See FIG. 1) In a unit building 10, building units 11 are horizontally and vertically adjacently arranged (see FIG. 1 (B)), and are attached to a ceiling beam 12 of a lower floor building unit 11A. It is constructed by placing a concrete beam 20 along it.

At this time, the lower-floor building unit 11A
An outer wall panel 14A having fire resistance such as LC is previously attached at a factory, and the outer wall panel 14A of the ceiling beam 12 is provided.
The ceiling beam 12A on the A side is formed in a laterally U-shape, and the U-shaped web portion is brought into contact with the outer wall panel 14A. The upper-floor building unit 11B is also provided with a fire-resistant outer wall panel 14B such as ALC at a factory in advance.

The unit building 10 is constructed as follows. (1) Install the lower floor building unit 11A.

(2) Ceiling beam 1 of lower floor building unit 11A
Auxiliary formwork 16 is bridged between the lower ends of 2, 2A, and an auxiliary formwork 17 is placed on the upper end of the ceiling beam 12 to form a ceiling beam 12A.
The auxiliary formwork 18 is placed on the upper end of the.

(3) The upper-floor building unit 11B is installed above the lower-floor building unit 11A with a gap A therebetween. Thereby, between the outer wall panel 14A of the lower floor building unit 11A and the outer wall panel 14B of the upper floor building unit 11B,
A gap A is formed. The gap A allows the unit building 10 to increase the floor height while keeping the transport height of the building units 11A and 11B within the transport restriction range. The upper-floor building unit 11B is a floor slab 1
9 is provided.

(4) Ceiling beam 1 of lower floor building unit 11A
The concrete beam 20 is cast using the floor slab 19 of the upper-floor building 11B and the auxiliary formwork 16 to 18 as a discard formwork. Accordingly, the upper end of the concrete beam 20 extends horizontally to the outer wall panel 14B of the upper building unit 11B by the auxiliary formwork 18, and the lower end of the concrete beam 20 is formed by the U-shaped ceiling beam 12A. 1
1A extends horizontally to the outer wall panel 14B, and as a result, the gap A between the upper and lower outer wall panels 14A, 14B is closed by the concrete beam 20.

The operation of this embodiment will be described below.
When the outer wall panel 14A of the lower-floor building unit 11A is separated from the outer wall panel 14B of the upper-floor building unit 11B, the upper end of the concrete beam 20 is placed in the upper-floor building unit 1
Extending in the horizontal direction until the outer wall panel 14B of 1B, and the lower end is lower story building unit 11 of the concrete beam 20
By extending horizontally to the outer wall panel 14A of A, the gap between the upper and lower outer wall panels 14A, 14B is closed by the presence of the concrete beam 20, and as a result, a fireproof section can be completed simultaneously with the placement of the concrete beam 20.

Second Embodiment (See FIG. 2) The second embodiment is different from the first embodiment in that, among the ceiling beams 12 of the lower-floor building unit 11A, the ceiling beams 12 on the side of the outer wall panel 14A and the outer walls are different. That is, the auxiliary mold 21 is extended between the panels 14A. The ceiling beams 1 2 below story building unit 11A, the floor slab 19 of the upper story building unit 11B, an auxiliary frame 1 6-18 as捨型frame, concrete beams 22
And the concrete beam 23 is cast using the ceiling beam 12, the outer wall panel 14A, and the auxiliary formwork 21 of the lower-floor building unit 11A as a discarded formwork. 24 is an anchor.

[0017] Concrete In this case, the upper end of the concrete beam 22 which extends in the horizontal direction until the outer wall panel 14B of the upper story building unit 11B by the auxiliary mold 18, is formed at the lower end of the concrete beam 2 2 The beam 23 extends in the horizontal direction to the outer wall panel 14A of the lower-floor building unit 11A by the auxiliary formwork 21. As a result, the gap A between the upper and lower outer wall panels 14A, 14B passes through the concrete beam 22,
Blocked by 23.

[0018]

As described above, according to the present invention, the building unit
Floor height within the transport restrictions
To take listening, even gap is formed between the outer wall of the outer and upper floor building unit of the lower story building unit, building units
Floor height while keeping the transportation height of
To take, be gap formed between the outer wall of the outer and upper floor building unit of the lower story building unit, at the same time as the pouring of concrete beams makes it possible to complete a fire compartment between the upper and lower outer walls.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a second embodiment of the present invention.

FIG. 3 is a schematic diagram showing a state in which a gap is formed between upper and lower outer walls.

FIG. 4 is a schematic view showing a relationship between a concrete beam and a necessary portion of a fire-resistant outer wall.

FIG. 5 is a schematic view showing a conventional example.

[Explanation of symbols]

10 Unit Building 11A Lower Floor Building Unit 11B Upper Floor Building Unit 14A, 14B Exterior Wall Panels 20 , 22, 23 Concrete Beam

Claims (1)

(57) [Claims] Claims: 1. A fireproof outer wall of a lower-floor building unit of a unit building constructed by arranging a building unit horizontally and vertically adjacent to each other and casting a concrete beam along a ceiling beam of the lower-floor building unit; of the fireproof outer wall of the upper floor building unit
A gap is formed therebetween, and the upper end of the concrete beam extends horizontally to the fireproof outer wall of the upper-floor building unit
And a lower end portion of the concrete beam extending horizontally to a fireproof outer wall of the lower-floor building unit.