JP2004092188A - Floor structure of balcony - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the floor structure of a balcony in which a crossover step can be reduced in height, while maintaining floor rigidity excellently. <P>SOLUTION: An auxiliary floor beam (21) approximately parallel with a floor beam (20) at the front end of the balcony is installed, and a backing material (30) for the structure in the vicinity of the front end of the balcony is dropped between the front-end floor beam (20) and auxiliary floor beam (21) while a drain gutter (35) is mounted on the backing material (30). Since even a floor-face level on the interior side of the upwardly inclined balcony from the drain gutter can be reduced in height by lowering the finishing level of the drain gutter (35) on the balcony front-end side, the height of a waterproof vertical wall (43) of a window (42) is lowered, and the crossover step (H) can be reduced in height. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a balcony floor structure in a wooden house.
[0002]
[Prior art]
As a floor structure of a balcony of a wooden house, there is a structure in which a structural plywood as a structural material is directly constructed on floor beams to form a rigid floor. 4 and 5 show an example of a floor structure of a balcony employing a rigid floor.
[0003]
In the figures, (1) (1) ... are floor beams made of wooden beams, (2) (2) ... are joists inserted between the floor beams (1) (1) ... The structural plywood (3) is fixed on the upper surfaces of the floor beams (1) (1) and the joists (2) (2).
[0004]
Further, (4) is a gradient floor installed on the structural plywood (3), and the gradient floor (4) is obtained by attaching a fireproof sound insulation material (6) to the upper surface of the heat insulating material (5). Become. (7) is a drainage ditch formed along the width direction of the balcony near the tip of the balcony, and (8) is a boundary wall provided between the room and the balcony. Is provided with a window (9) for entering and exiting between the room and the balcony. Then, in order to improve the drainage property of the balcony, the upper surface of the gradient floor (4) is directed from the drainage groove (7) at the tip of the balcony to the rising wall (10) of the window (9) at the back of the balcony. The slope is up.
[0005]
(11) is a waterproof layer laid on the upper surface of the gradient floor (4), (12) is a handrail wall of a balcony, and (13) is a roof.
[0006]
[Problems to be solved by the invention]
In the above-mentioned balcony floor structure, the plywood (3) is fixed on the floor beams (1), (1),..., And the drainage groove (7) is provided above the plywood (3). The finishing level of the drain (7) was higher. Therefore, as described above, when securing a water gradient such that the floor surface becomes higher from the balcony tip side to the balcony depth side, especially when the depth dimension of the balcony becomes longer, the floor level at the depth side of the balcony becomes higher. Therefore, the height level of the rising wall (10), which is raised so as to prevent inundation into the room, is necessarily increased.
[0007]
For this reason, the height from the indoor floor surface (14) to the lower end of the window (9), that is, the step (H), is large, and there is a problem that it is difficult to enter and exit between the balcony and the room.
[0008]
Accordingly, an object of the present invention is to provide a balcony floor structure capable of solving the above-mentioned disadvantages and maintaining a good floor rigidity and suppressing a straddling step.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention provides a method of manufacturing a base material for a structure, which is installed on a floor beam, in which an upper surface is inclined upward from a drainage ditch near a tip of a balcony to a waterproof rising wall of a window on a back side of the balcony. In a balcony floor structure with a sloped floor provided, an auxiliary floor beam substantially parallel to the floor beam at the tip of the balcony is provided, and a structural foundation near the balcony tip is provided between these floor beams and the auxiliary floor beam. The material is dropped, and a drain groove is provided on the structural base material.
[0010]
Specifically, the auxiliary floor beams are arranged at a depth of about 0.5 module from the tip of the balcony. Further, the height level of the upper surface of the structural base material near the tip of the balcony is adjusted to the height level of the upper surfaces of the tip floor beam and the auxiliary floor beam. Further, a joist is attached to each of the opposing side surfaces of the tip floor beam and the auxiliary floor beam, and a structural base material near the tip of the balcony is provided across the upper surface of the joist.
[0011]
The above floor structure is applied to a wooden house, wherein the floor beam is made of a wooden bar and the base material is made of structural plywood.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
The balcony according to one embodiment of the present invention is provided, for example, on the second floor of a wooden house. And the floor of the balcony is basically a rigid floor, and by lowering the floor surface level on the tip side where the drainage channel is formed, the water gradient rising upward from the tip side to the back side is reduced. The floor level on the back side is lowered while securing good conditions.
[0013]
Hereinafter, the floor structure of this balcony will be described in detail with reference to the drawings. In the figure, (20), (20)... Are floor beams made of, for example, wooden timbers, of which the top floor beam (20), the middle floor beam (20), and the rear floor beam (20) extend along the balcony width direction. 20) are arranged substantially parallel to each other at substantially equal intervals in the depth direction of the balcony. Between the tip floor beam (20) and the intermediate floor beam (20), an auxiliary floor beam (21) made of, for example, a wooden square member is provided substantially parallel to the floor beams (20) and (20). .
[0014]
The auxiliary floor beam (21) is arranged at a depth of about 0.5 module (about 50 cm) from the tip of the balcony, and the height level of the upper surface is the same as that of the other floor beams (20) (20). Aligned to height level.
[0015]
Then, as shown in FIG. 3, joists (25), (25)... Made of, for example, wooden square beams are assembled in a square frame shape between the front floor beam (20) and the auxiliary floor beam (21). The joists (25) and (25) at the front and rear ends are fixed to the opposing side surfaces of the front floor beam (20) and the auxiliary floor beam (21) by nailing or the like. Have been. The height level of the upper surface of these joists (25) (25) is lower than the height level of the upper surface of the floor beams (20) (21).
[0016]
In addition, between the auxiliary floor beam (21) and the intermediate floor beam (20), and between the intermediate floor beam (20) and the rear end floor beam (20), a joist (26) made of, for example, a wooden timber is used. (26) are arranged, and the height level of the upper surface thereof is aligned with the height level of the upper surface of the floor beams (20), (21).
[0017]
(30) is a structural base material near the tip of the balcony made of structural plywood, and the base material (30) has, for example, a height level of the upper surface of the floor beams (20), (21). It is dropped between the top floor beam (20) and the auxiliary floor beam (21) so as to match the height level, and is fixed across the upper surfaces of the joists (25) (25). . (31) is a base material also made of structural plywood, and as shown in FIG. 3, the base material (31) has its front end covered over the rear end of the base material (30) from above. Are fixed directly on the floor beams (20), (21)... Except for the tip floor beam (20) and the joists (26), (26) to form a rigid floor.
[0018]
A horizontal floor (36) near the tip of the balcony is constructed on the base material (30) near the tip of the balcony so as to form a drainage groove (35) along the width direction of the balcony. 31) Above, a sloping floor (37) is constructed so as to be continuous with the horizontal floor (36) on the tip side of the balcony. These floors (36) and (37) are made by bonding a fireproof sound insulating material (39) to the upper surface of a heat insulating material (38). The upper surface of the sloping floor (37) is inclined upward from the vicinity of the drainage groove (35) on the tip side of the balcony toward the back of the balcony. Specifically, it inclines at a gradient of about 1/100.
[0019]
(40) is a handrail wall erected on the tip side and the side end side of the balcony, and (41) is a boundary wall separating the room and the balcony on the back side of the balcony. A handrail (44) is attached to the upper end of the handrail wall (40). The boundary wall (41) is provided with a window (42) for entering and exiting between the room and the balcony, and the lower side of the window (42) is a waterproof rising wall (43). This prevents water from entering the room from the balcony side. (45) is a waterproof layer that covers the horizontal floor (36), the sloping floor (37), the drainage groove (35), the lower end of the handrail wall (40), and the rising wall (42).
[0020]
In such a floor structure, since the floor surface level at the tip of the balcony is lower than before by lowering the base material (30), the sloping floor (37) connected to the horizontal floor (36) at the tip of the balcony. Can be made thinner, the thickness of the rear end side of the sloping floor (37) becomes thinner than before, and the floor level at the back of the balcony can be kept low. Therefore, the height level of the rising wall (43) of the window portion (42) on the back side of the balcony can be suppressed to be low, whereby the height from the indoor floor surface (46) to the lower end of the window portion (42), that is, the straddle. The level difference (H) is also reduced, so that entry and exit between the balcony and the room can be easily performed.
[0021]
For example, in order to comply with the grade 4 for consideration of the elderly specified in the housing performance display system of the Quality Assurance Act, the step height (H) needs to be 180 mm or less, but in the above floor structure, the depth of the balcony is required. Even if the height of about 3 m is secured, the step height (H) can be suppressed to 180 mm or less, and a specification that can easily cope with the consideration class 4 for the elderly, which was difficult to achieve with the conventional floor structure, is established. be able to.
[0022]
In addition, by lowering the floor level of the balcony as a whole, the height of the upper end of the handrail (44) of the handrail wall (40) can also be kept low, whereby the height of the roof (50) and the handrail (44) can be reduced. By increasing the interval (h) between them, the openness of the balcony can be increased. Furthermore, when the openness of the balcony is increased in this way, in the method of calculating the floor area of the balcony, the floor area of the balcony may not need to be included in the floor area of the second floor, which may be advantageous in calculating the floor area ratio. is there.
[0023]
Note that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention.
[0024]
【The invention's effect】
As is evident from the above description, the floor structure of the present invention has a structural rigidity on a floor beam and a rigid floor provided with a sloped floor on the structural structural grounding material. At the tip of the balcony, which has no effect, the structural base material has been dropped to reduce the finishing level of the drain, making it easier to lower the overall height of the balcony floor that is inclined upward from the vicinity of the drain. Also, the floor level on the back side of the balcony can be kept low. Therefore, while maintaining good floor rigidity, the height level of the rising wall on the back side of the balcony can be reduced to reduce the straddling step, and it is possible to easily enter and exit between the balcony and the room.
[0025]
In addition, by keeping the floor surface level of the balcony low, the height of the upper end of the handrail on the handrail wall can also be kept low, thereby improving the openness of the balcony.
[0026]
Furthermore, only the base material on the tip side of the balcony is dropped, and there is no major change in the fundamental construction method as compared with the prior art, so that a rise in construction costs and the like can be suppressed.
[Brief description of the drawings]
FIG. 1 is a diagram showing a floor structure of a balcony according to an embodiment of the present invention.
FIG. 2 is an enlarged sectional view of a main part of the same.
FIG. 3 is an enlarged sectional view of the tip of the balcony.
FIG. 4 is a diagram showing a floor structure of a conventional balcony.
FIG. 5 is an enlarged sectional view of a main part of the same.
[Explanation of symbols]
(20) Floor girder (21) Auxiliary floor girder (25) Gejo (30) Structural base material near balcony tip (31) Remaining structural base material (35) Drainage gutter (37) Slope floor (42) Window Part (43) Waterproof rising wall

Claims (5)

In a balcony floor structure, a sloped floor is provided on the structural base material installed on the floor beams, with the upper surface inclined upward from the vicinity of the drainage ditch at the tip of the balcony to the waterproof rising wall of the window at the back of the balcony. An auxiliary floor beam that is substantially parallel to the floor beam at the tip of the balcony is provided, and a structural base material near the tip of the balcony is dropped between the front floor beam and the auxiliary floor beam. Balcony floor structure characterized by drainage channels. 2. The floor structure of a balcony according to claim 1, wherein the auxiliary floor beam is disposed at a depth of about 0.5 module from the tip of the balcony. 3. The balcony floor structure according to claim 1, wherein a height level of an upper surface of the structural base material near the tip of the balcony is adjusted to a height level of upper surfaces of the tip floor beam and the auxiliary floor beam. 4. A structural base material near the tip of the balcony, wherein a joist is attached to each of opposing side surfaces of the tip floor beam and the auxiliary floor beam, and a straddle is provided between upper surfaces of the joists. The floor structure of the balcony described in Crab. The balcony floor structure according to any one of claims 1 to 4, wherein the floor beam is made of a wooden timber, and the structural base material is made of a structural plywood, which is applied to a wooden house.

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