JPH10331250A - Balcony / corridor structure and floorboards used for it - Google Patents

Abstract

(57) [Problem] To provide a balcony / corridor structure which is easy to carry out construction work and therefore inexpensive, and has excellent rain finishing and quality accuracy. SOLUTION: Precast concrete floor plates (1) and (2) are placed between beams (8) taken out of a frame of a building body, and are integrally joined with bolts (40) to form a rigid balcony. Construct a floor or corridor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a balcony and a corridor provided on an outer wall of a steel structure building.

[0002]

2. Description of the Related Art Conventionally, such balconies and exterior corridors are
Cast-in-place concrete wet method and ALC
There is a dry construction method in which a lightweight concrete board such as a board is attached on site.

[0003]

In the above, the construction method using cast-in-place concrete involves, for example, attaching a deck plate to a beam and placing concrete on the deck plate. There are many disadvantages that the construction period is long and the cost is high.

On the other hand, in the case of using a lightweight concrete board as a floor material, on-site work is easy as compared with the wet construction method.
Lightweight concrete boards such as LC boards do not have the strength to support horizontal force, so it is necessary to insert braces between beams taken out of the building. For this reason, not only beams but also braces are exposed on the back of the floorboard, so the entire back must be covered with the eaves backboard, making the entire floor thicker, lowering the ceiling height, and increasing the number of work steps. become.

In addition, in this type of construction using an ALC board or the like, a plurality of floor boards are arranged side by side also in the direction in which the beams are taken out. Therefore, it is necessary to lay a waterproof sheet in order to close the gap between them. In order to protect the sheet, the surface is covered with a protective mortar, which is not necessarily excellent in workability, and has a disadvantage of increasing costs. In addition, the protective mortar itself is liable to crack, and it is hard to say that the rain is very good. The same is true for cast-in-place concrete, where beams and frames supporting deck plates are covered with eaves back plates.
There are drawbacks that the entire floor is thick, the ceiling height is low, and the use of a waterproof sheet or protective mortar increases the number of work steps and is not excellent in raining.

Further, in any case, the drain metal fittings and the hatch mounting frame for evacuation are provided with openings at the site and then fitted and mounted later. There is a drawback that it tends to occur, and in this sense, the rain is likely to deteriorate.

SUMMARY OF THE INVENTION An object of the present invention is to provide a balcony / corridor structure which solves the above-mentioned drawbacks of the prior art, is easy to carry out construction work, is low in cost, and is excellent in rain finishing and quality accuracy. Is what you do.

[0008]

In order to solve the above-mentioned problems, a balcony / corridor structure according to the present invention is composed of a precast concrete plate over a beam taken out of a frame of a building body to the outside of an outer wall. A floor plate is placed, and the beams and the floor plate are integrated by bolting.

[0009] In the above, it is conceivable that the floor plate is bolted by screwing a bolt inserted into the beam to an insert nut of the floor plate.

[0010] Further, there is provided a structure in which a beam exposed on a lower side of a floor plate is covered with a decorative plate material.

On the other hand, the decorative board material is an ALC board,
A beam fixed to a beam or a mounting attached to the beam is provided.

Furthermore, a handrail fixing plate made of a metal plate is previously embedded in the floor plate so as to be exposed on the surface, and it is conceivable to attach a handrail support to the fixing plate by welding.

Further, the floor panel of the present invention is provided which is made of a precast concrete plate, and in which a drain fitting is previously provided integrally.

[0014] Similarly, another floor plate of the present invention is provided, which is made of a precast concrete plate and is provided with a mounting frame for an evacuation hatch in advance.

[0015]

FIG. 1 is a plan view showing a state in which a floor plate made of a precast concrete plate is installed on a beam. In the figure, (1) and (1) are floor boards made of precast concrete arranged at both ends in the longitudinal direction, and one corner corresponding to a corner of a balcony floor is formed in an R shape. (2) is the first floorboard
(1) A second rectangular precast concrete floor plate arranged between (1). This second floorboard (2)
Depending on the length of the balcony in the wall direction, one or a plurality of them, or the second floor plate (2) or the first floor plate (1)
In some cases, only one of (1) is used.

On the upper surfaces of the floorboards (1) and (2), drain grooves (3) (3) are formed so as to be continuous with each other along the outer edges thereof. In addition, each floor plate is placed in this drain (3).
Drain fittings (4) (4) are provided in one place of (1) and (2). In the first floorboards (1) (1) provided at both ends,
At the corner on the outer wall (7) side of the building body, a gutter through hole (5)
(5) is formed in advance. (6) is one of the first floorboards
2 shows an attachment frame which is fitted and attached to an evacuation hatch opening formed in (1).

Each of the floor plates (1), (2)... Is a cantilevered beam (8) projecting outward from an outer wall (7) of the building body.
(8).., The longitudinal ends thereof are placed and installed. Further, as shown in FIG. 7, substantially square recesses (9) (9) are provided on the outer portions of the floorboards (1) and (2) outside the drain groove (3) at intervals in the longitudinal direction. Are formed, and a plate (10) for attaching a handrail support is exposed at the bottom of the recess (9). FIG. 2 is a front view after the completion of the balcony, and (11) shows a waist wall supported by the floor boards (1) and (2).

The beams (8), (8)...
It is made of H-section steel and its upper flange (12) has a floor plate
Bolt holes (13) (13) are formed corresponding to the four corners of (1) and (2).

As shown in FIG. 3, the surface of the floor panels (1) and (2) is two in each of the drainage groove (3) and the end on the outer wall side of the building body, for a total of four. The lifting insert nuts (14) are embedded in advance, and the lifting ropes (16) are hooked onto the hook bolts (15), (15) ... And installed on beams (8) and (8). The periphery of the insert nut (14) is recessed so as to be filled with mortar or the like after removing the hook bolt (15).

On the other hand, as shown in FIGS. 5 and 6, on the back side of the floor plates (1) and (2), fixing insert nuts (39) correspond to the bolt holes (13) of the beam (8). ) Is embedded in advance, and a fixing bolt (40) inserted from below into the bolt hole (13) of the beam (8) is screwed into the insert nut (39) to tighten each floor plate (1). ) (2) is fixed at four places, and the entire structure is configured as a rigid structure.

(41) is an L-shaped plate buried so that one piece thereof is exposed on the lower surface of the floor plates (1) and (2), and the insert nut (39) is attached to the surface of the L-shaped plate (41). An anchor (42) is fixed to the L-shaped plate (41).

As described above, in the state where the floor boards (1) and (2) are attached, the periphery of the beam (8) projecting from the back side of the floor boards (1) and (2) is made of, for example, an ALC board. Decorative board (2
3) to (25) to improve appearance. At this time, mounting bases (18) (18) as shown in FIGS. 3 and 6 are mounted on the side surfaces of the beam (8).

The mounting base (18) comprises a horizontal member (19) made of lip grooved steel along the longitudinal direction of the beam, and short lip grooves projecting from the upper surfaces of both ends in the longitudinal direction of the horizontal member (19). A horizontal plate (21) consisting of a vertical member (20) (20) made of shaped steel and previously fixed inside a horizontal member (19) is mounted on the lower flange (22) of the beam (8). And fixed by welding.

A decorative panel (23) is provided on the outer surfaces of the vertical portion (20) and the horizontal member (19), and a decorative panel (24) is provided between the lower surfaces of the horizontal members (18). End faces (25) are fixed to the side surfaces on the tip side of the beam (8) with screws or the like, respectively, so that the beam (8) is completely covered so as not to be seen from the outside.

The end of the beam 8 on the building body 7 side is fixed to a main structural part of the building body, for example, a column or a beam, and the fixing means is welding. .

(27) is a lumbar wall frame forming a frame of the lumbar wall. The lumbar wall frame (27) is provided with columns (28), (28),. And an upper frame (29) connecting the upper ends of the columns (28) and (28), and a panel (35) connecting the columns (28) (28).

The strut (28) is made of a square pipe, and as shown in FIG. 7, the lower end of the stay pillar (31) provided inside the strut (28) is located below the strut (28). The lower end of the stay post (31) is placed on the upper surface of the fixing plate (10) in the recess (9) by projecting, and the lower wall frame (27) is welded.
Is fixed on floor boards (1) and (2). (45) is an anchor for fixing the fixing plate (10).

The column (28) has a pair of panel receiving members (33) (33) projecting outward with a vertical interval therebetween, and these panel receiving members (33) (33) are provided. As shown in FIG. 8, a slit (34) is formed at a certain depth from the front end surface of the front end surface. On the other hand, the waist wall panel (35) is formed of, for example, a porous punched panel provided with a large number of punched holes, and both ends in the left-right direction are bent inward at substantially right angles. (36) the slit
(33).

At this time, the bent end portions (36) of the waist wall panels (35) adjacent to each other are inserted in an overlapping manner, and inserted into the bolt holes of the receiving member (33) from the side of the receiving member (33). Mounting bolt
(37) is inserted through the bent end portion (36), and a nut (38) is screwed and tightened at the opposite end to attach the waist wall panel (35). In the upper frame (29), Kasagi (4
4) is fitted and attached.

FIG. 9 shows a cross section of a drain metal fitting (4) mounting portion previously mounted in the drain groove (3). The drain metal fitting (4) is buried in advance and attached when molding the floorboards (1) and (2). Therefore, compared to the case where an opening is formed at the site and the metal fitting (4) is inserted and attached, the rain around the metal fitting (4) is better,
A phenomenon such as water leakage due to poor construction does not occur.

FIG. 10 is a sectional view of a mounting portion of the evacuation hatch mounting frame (6).
It is buried integrally at the time of molding. This mounting frame
The hatch body (43) equipped with an evacuation ladder is fitted to (6) at the site, and attached. There is no problem such as water leakage due to poor construction.

The gap between the floorboards (1) and (2) is
Watertightly closed by caulking material (30)
(1) Similarly, the gap between the outer wall (7) and the outer wall (7) is watertightly constructed by the caulking material (30).

[0033]

As described above, the floor panel of the present invention is made of a precast concrete panel. Since the floor panel made of a precast concrete panel having high rigidity is fixed to the beam by a bolt to a rigid structure, it supports horizontal force. There is no need to use braces to do this. For this reason, only the good concrete surface of the skin surface manufactured in advance at the factory is exposed on the back surface of the floor plate of the piping, so it is sufficient to cover only the periphery of the beam, and at least between the beams, the balcony for each floor The ceiling height between them can be increased.

Further, since the space between the beams is covered with an integrated precast concrete floor plate, and it is possible to perform the rain by itself, unlike the case where the ALC plate is used, it is necessary to lay a waterproof sheet and to apply a protective mortar thereon. , Workability is good and construction can be carried out at low cost. Moreover,
Since only the floorboard is carried in, installed on the beams and fixed with bolts, no scaffolding is required and construction can be performed in a short period of time.

In addition, since there is no waterproof sheet or protective mortar layer as described above, the high-strength concrete surface becomes a direct walking surface. Since there is no part that depends on craftsmen, the quality and accuracy are constant.

In addition, in the floor panel of the present invention, the mounting frame for the drain metal fittings and the evacuation hatch is integrally attached when the floor panel is molded. In comparison, there is no inconvenience such as rain leak due to poor construction, and in this respect, a product excellent in quality and accuracy can be obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state after a floor plate is installed on a balcony.

FIG. 2 is a front view after a balcony is completed.

FIG. 3 is an exploded perspective view showing a main part of a balcony floor.

FIG. 4 is a cross-sectional view of a balcony.

FIG. 5 is an enlarged cross-sectional view of a balcony floor portion.

FIG. 6 is an enlarged cross-sectional view of a main part of a balcony floor, which is shown by crossing a beam portion.

FIG. 7 is a longitudinal sectional view of a waist wall portion.

FIG. 8 is an enlarged cross-sectional view of a waist wall panel attachment portion.

FIG. 9 is an enlarged cross-sectional view of a main part of a drain plate mounting portion of a floor plate.

FIG. 10 is an enlarged cross-sectional view of an escape hatch attachment frame portion of the floorboard.

[Explanation of symbols]

 (1) Floor plate (2) Floor plate (4) Drain metal fittings (6) Hatch mounting frame (7) Exterior wall of building body (8) Beam (10) Post fixing plate (28) Handrail post (31) Stay column (39) Fixed Insert nut (40) fixing bolt

Claims (7)

[Claims] 1. A floor plate made of a precast concrete plate is placed over a beam taken out of an outer wall from a frame of a building body, and the beam and the floor plate are integrated by bolting. Balcony / corridor structure characterized by the following. 2. The balcony / corridor structure according to claim 1, wherein a bolt inserted into the beam is screwed to an insert nut of the floor plate and bolted. 3. The balcony / corridor structure according to claim 1, wherein the beam exposed on the lower side of the floorboard is covered with a decorative board material. 4. The balcony / corridor structure according to claim 3, wherein said decorative plate material is an ALC plate, and is fixed to a beam or a mount attached to said beam. 5. A handrail fixing plate made of a metal plate is embedded in advance so as to be exposed on the surface, and a handrail support is welded to the fixing plate. 4. The balcony / corridor structure described in any of 4. 6. A floor plate used for a balcony or corridor, which is made of a precast concrete plate and is provided with a drain fitting in advance. 7. A floor plate used for a balcony or a corridor, which is made of a precast concrete plate and is provided with a mounting frame for an evacuation hatch in advance.