JP2004204561A - Open ceiling structure of building, and its construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form an open ceiling opening over two upper story floor panels while enhancing the degree of freedom of the plan of a building. <P>SOLUTION: One upper story floor panel 31 wherein an opening 31B and a floor remaining part 31C are mixed, and the other upper story floor panel 31 wherein the opening 31B and the floor remaining part 31C are mixed, are placed parallel so that a boundary between the opening 31B and the floor remaining part 31C of one floor panel 31, and a boundary between the opening 31B and the floor remaining part 31C are arranged on a straight line. A beam extending over two upper story floor panels 31 is laid along the boundaries. Side edges of the floor remaining parts 31C of two upper story floor panels 31 are supported to the beam 33, and the openings 31B of two upper story floor panels 31 form mutually continuous open ceiling opening 12. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a stairwell structure for a building and a construction method thereof.
[0002]
[Prior art]
As described in Patent Literature 1, a part of floor panels of two upper-floor building units is an opening part, the remaining part is a floor, and the opening parts of these floor panels are connected to each other to form a blow-through opening. Are provided with a load-bearing wall for supporting the floor of an upper-floor building unit in two lower-floor building units located below the lower-floor building unit.
[0003]
[Patent Document 1]
JP 2000-120173 ([0015], FIG. 3)
[0004]
[Problems to be solved by the invention]
In Patent Literature 1, it is necessary to provide a load-bearing wall for supporting the floor of the upper-floor building unit in the lower-floor building unit in order to form a stairwell opening straddling the floor panels of the two upper-floor building units. become.
[0005]
An object of the present invention is to form a stairwell opening over two upper floor panels while increasing the degree of freedom in a plan of a building.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, two upper floor panels at least partially open are juxtaposed such that the openings are adjacent to each other, and a floor structure spanning the two upper floor panels is erected. The floor structure is used to form floors beside the openings of the two upper floor panels, and the openings of the two upper floor panels that are not covered by the floor are continuous blow-through openings. It is an atrium structure of a building.
[0007]
The invention according to claim 2 is characterized in that one upper floor panel in which the opening portion and the remaining floor portion are mixed, and the other upper floor panel in which the opening portion and the remaining floor portion are mixed are the opening portion of one floor panel and the floor. The boundary of the remaining portion, the opening of the other floor panel and the boundary of the floor remaining portion are juxtaposed so as to be arranged in a straight line, and a beam is erected along the boundary and straddling the two upper floor panels. This is an open-air structure of a building in which the beams support the side edges of the remaining portions of the floors of the two upper floor panels, and the openings of the two upper floor panels are continuous open holes.
[0008]
According to a third aspect of the present invention, in addition to the second aspect, the upper floor panel is previously integrated with an upper wall panel to constitute a building unit.
[0009]
According to a fourth aspect of the present invention, there is provided a method for constructing a stairwell structure for a building according to the second or third aspect, wherein an outer peripheral frame is provided on the entire periphery, and an opening portion and a floor remaining portion are mixed in the outer peripheral frame. Two upper floor panels are mounted on the lower floor so that the boundary between the opening of each upper floor panel and the remaining floor is aligned, and A pillar is erected on the lower part, and the outer peripheral frames of the two upper floor panels, which are sandwiched between the openings, are removed, and both ends of the beam along the boundary of the two upper floor panels are moved upward. The upper frame is fixed to the outer peripheral frame of the floor panel, and the beams support the side edges of the remaining floor of each upper floor panel, and the openings of the two upper floor panels are formed as continuous blow-through openings. It is.
[0010]
The invention according to claim 5 is that the two upper floor panels at least a part of which is an opening are juxtaposed so that their openings are adjacent to each other, straddle the opening of the two upper floor panels, and A small floor panel that covers a part of the opening, but not the whole, is erected, and the opening part of the two upper floor panels that is not covered by the small floor panel is a continuous ventilation opening.
[0011]
The invention according to claim 6 is the invention according to claim 5, wherein the upper floor panel is integrated with an upper floor wall panel in advance to constitute a building unit.
[0012]
The invention according to claim 7 is the construction method for a stairwell structure for a building according to claim 5 or 6, wherein the peripheral frame is provided on the entire periphery, and at least a part of the peripheral frame is an opening. The two upper floor panels are mounted on the upper part of the lower floor such that their openings are adjacent to each other, and the outer frames of the two upper floor panels, which are sandwiched between the openings, are removed. Fixing both ends of the small floor panel covering a part of the opening part of the two upper floor panels, which is not the whole, to the outer peripheral frame of each upper floor panel, and covering with the small floor panels provided on the two upper floor panels Open portions that are not covered are formed as continuous blow-through openings.
[0013]
[Action]
According to the first and second aspects of the invention, there is the following operation (1).
{Circle around (1)} The floor adjacent to the opening of the two upper floor panels that forms the stairwell that straddles the two upper floor panels is constructed using beams (floor structures) that straddle the two upper floor panels. I do. Therefore, it is not necessary to provide a bearing wall or the like for supporting the upper floor on the lower floor, and the degree of freedom in the plan of the building can be increased.
[0014]
According to the invention of claim 3, there is the following operation (2).
{Circle around (2)} The upper floor panel constitutes a building unit previously integrated with the upper floor wall panel. Therefore, the above item (1) can be realized in a unit building.
[0015]
According to the invention of claim 4, there is the following operation (3).
(3) The pillars are set up at the lower part of the remaining floor of the two upper floor panels, and after removing the outer frame, beams are installed, and the beams are supported on the side edges of the remaining floor to form the floor. The floor can be temporarily and stably temporarily supported by the support until the floor remains.
[0016]
According to the first and fifth aspects of the present invention, there is the following effect (4).
{Circle around (4)} A small floor panel (floor structure) that straddles the two upper floor panels is used as the floor next to the opening of the two upper floor panels that forms a stairwell opening across the two upper floor panels. Configure. Therefore, it is not necessary to provide a bearing wall or the like for supporting the upper floor on the lower floor, and the degree of freedom in the plan of the building can be increased.
[0017]
According to the invention of claim 6, there is the following operation (5).
{Circle over (5)} The upper floor panel constitutes a building unit which is previously integrated with the upper floor wall panel. Therefore, the above item (4) can be realized in a unit building.
[0018]
According to the invention of claim 7, there are the following operations (6) and (7).
{Circle around (6)} There is no need to set up a pillar below the two upper floor panels, and the floor can be formed by installing a small floor panel simply by removing the outer frame.
[0019]
{Circle around (7)} Since one small floor panel is straddled over two upper floor panels, there is no floor difference between the two upper floor panels and between the two upper floor building units.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
1 shows a layout of a building, (A) is a plan view of a lower floor, (B) is a plan view of an upper floor, FIG. 2 shows a stairwell structure of the first embodiment, and (A) is a perspective view showing an intermediate construction state. Fig. 3 (B) is a perspective view showing a completed construction state, Fig. 3 shows a part III in Fig. 2, (A) is a perspective view, (B) is an end view, and Fig. 4 shows a blow-through structure of the second embodiment. (A) is a perspective view showing an intermediate construction state, (B) is a perspective view showing a completed construction state, FIG. 5 shows part V of FIG. 4, (A) is a perspective view, and (B) is an end view. It is.
[0021]
(1st Embodiment) (FIGS. 1-3)
FIG. 1 shows a unit building 10 constructed by mounting a plurality of upper floor building units on a plurality of lower floor building units.
[0022]
In the unit building 10, a lower-floor dining room 11 is constructed by two lower-floor building units 20, 20, as shown in FIG. 2, and a stairwell opening 12 and an upper-floor floor 13 above the dining room 11 are shown in FIG. It is constructed so as to straddle two upper-floor building units 30 and 30 as described above.
[0023]
The lower-floor building unit 20 is constructed by erecting a lower-floor wall panel 22 on an outer edge of a lower-floor floor panel 21. The upper-floor building unit 30 is constructed by erecting an upper-floor wall panel 32 on the outer edge of the upper-floor floor panel 31. In FIG. 2B, the upper floor wall panel 32 of the upper floor building unit 30 is omitted.
[0024]
In the present embodiment, the upper floor panel 31 of the upper floor building unit 30 that forms the atrium opening 12 and the upper floor 13 has an outer peripheral frame 31A on the entire circumference, and an opening portion 31B is formed in the outer peripheral frame 31A. And the floor remaining portion 31C are mixed. The floor remaining portion 31C includes three intersecting outer peripheral frames 31A, 31A, 31A, a joist 31D bridged over two adjacent outer peripheral frames 31A among the three outer peripheral frames 31A, and a joist. It is composed of a plurality of connecting members 31E spanned between 31D and one outer peripheral frame 31A opposed thereto.
[0025]
In the unit building 10, the stairwell opening 12 and the upper floor 13 spanning the two upper floor building units 30, 30 are configured as follows.
[0026]
(1) Two upper floor building units 30, 30 are mounted on two lower floor building units 20, 20. At this time, the upper floor panel 31 of one upper floor building unit 30 and the upper floor panel 31 of the other upper floor building unit 30 are connected to the boundary between the opening 31B of the upper floor panel 31 and the remaining floor 31C. And the other upper floor panel 31 is juxtaposed so that the boundary between the opening 31B and the remaining floor 31C is aligned on a straight line (FIG. 2A).
[0027]
(2) Stands 40 are erected below the remaining floor portion 31C of the two upper floor panels 31 (FIG. 2A).
[0028]
(3) The outer peripheral frames 31A of the two upper floor panels 31, which are sandwiched between the opening portions 31B, 31B, are removed (FIG. 2A). The outer peripheral frame 31A is cut away except for a part constituting the floor remaining portion 31C.
[0029]
(4) A beam 33 is erected along the boundary of (1) between the two upper floor panels 31 and straddling the two upper floor panels 31. Both ends of the beam 33 are fixed to the outer peripheral frame 31A of each upper floor panel 31 using the following beam receiving fittings (5) (FIG. 2B).
[0030]
(5) The beam 33 supports the side edges (the joists 31D of the remaining floor portions 31C) of the remaining floor portions 31C of the two upper floor panels 31 by nailing or the like. As shown in FIG. 3, the joists 31D and the beams 33 of the remaining floor portion 31C of the upper floor panel 31 are attached to each other, and both ends thereof are connected to the outer peripheral frame of the upper floor panel 31 by the beam receiving members 34. It is supported by 31A. The mounting plate 34A of the beam receiving member 34 is nailed and fixed to the outer peripheral frame 31A, and the joist 31D and the beam 33 are fitted into the upper open concave receiving portion 34B of the beam receiving member 34 and nailed to both side plates of the concave receiving portion 34B. Is done.
(6) The support 40 is removed.
[0031]
As described above, the opening portions 31B of the two upper floor panels 31 are formed as the blow-through openings 12 communicating with each other. Further, the floor remaining portion 31C of the two upper floor panels 31 supported by the beams 33 forms the upper floor 13.
[0032]
According to the present embodiment, the following operations are provided.
{Circle around (1)} The floor 13 on the side of the opening 31B of the two upper floor panels 31 forming the stairwell 12 extending over the two upper floor panels 31 is connected to the beam 33 (floor) that extends over the two upper floor panels 31. (Structure). Therefore, it is not necessary to provide a bearing wall or the like for supporting the upper floor 13 on the lower floor, and the degree of freedom of the unit building 10 on the plan can be increased.
[0033]
{Circle around (2)} The upper floor panel 31 constitutes the building unit 30 previously integrated with the upper floor wall panel 32. Therefore, in the unit building 10, the above (1) can be realized.
[0034]
{Circle around (3)} After the outer frame 31A is removed by setting up the pillars 40 at the lower part of the remaining floor portion of the two upper floor panels 31, the beam 33 is installed, and the beam 33 supports the side edge of the remaining floor portion. Then, the floor remaining portion until the floor 13 is formed can be temporarily and stably supported by the columns 40.
[0035]
(2nd Embodiment) (FIG. 4, FIG. 5)
Similarly to the unit building 10 of the first embodiment, the unit building 10 of the second embodiment also has two upper building units 30 on the dining room 11 constructed by the two lower building units 20 and 20. , 30 and having a stairwell opening 12 and an upper floor 13.
[0036]
In the present embodiment, the upper floor panel 31 of the upper floor building unit 30 constituting the atrium opening 12 and the upper floor 13 has an outer peripheral frame 31A on the entire circumference, and at least a part of the outer peripheral frame 31A. In the present embodiment, the whole is formed as the opening portion 31B (FIG. 4A). In FIG. 4B, the upper floor wall panel 32 of the upper floor building unit 30 is omitted.
[0037]
In the unit building 10 of the second embodiment, the stairwell opening 12 and the upper floor 13 straddling the two building units 30, 30 are constructed as follows.
[0038]
(1) Two upper floor building units 30, 30 are mounted on two lower floor building units 20, 20. At this time, the upper floor panels 31 of the two upper floor building units 30 are juxtaposed such that their openings 31B are adjacent to each other (FIG. 4A).
[0039]
(2) The outer frames 31A of the two upper floor panels 31, which are sandwiched between the opening portions 31B, 31B, are removed.
[0040]
(3) A small floor panel 50 spans the opening 31B of the two upper floor panels 31. The small floor panel 50 covers a part of the opening 31 </ b> B of the two upper floor panels 31. In the small floor panel 50, a plurality of connecting members 52 are bridged between floor beams 51 on both sides, and a floor surface member 53 is attached. Of the floor beams 51 of the small floor panel 50, both ends of the floor beams 51 abutting on the intermediate portion of the outer peripheral frame 31A are attached to the outer peripheral frames 31A of the respective upper floor panels 31 as shown in FIG. It is fixed using. The mounting plate 54A of the beam receiving member 54 is nailed and fixed to the outer peripheral frame 31A, and the beam 33 is fitted into the upward concave receiving portion 54B of the beam receiving member 54 and nailed to both side plates of the concave receiving portion 54B. Note that, of the floor beams 51 of the small floor panel 50, both ends of the floor beams 51 abutting against the ends of the outer peripheral frame 31 </ b> A are nailed and fixed to the outer peripheral frames 31 </ b> A of the respective upper floor panels 31.
[0041]
As described above, the opening portions 31B that are not covered by the small floor panels 50 provided on the two upper floor panels 31 are the blow-through openings 12 that are continuous with each other. The small floor panel 50 forms the upper floor 13.
[0042]
According to the present embodiment, the following operations are provided.
{Circle around (1)} The floor 13 on the side of the opening 31B of the two upper floor panels 31 forming the blow-through opening 12 extending over the two upper floor panels 31 and the small floor panel 50 extending over the two upper floor panels 31. (Floor structure). Therefore, it is not necessary to provide a bearing wall or the like for supporting the upper floor 13 on the lower floor, and the degree of freedom of the unit building 10 on the plan can be increased.
[0043]
{Circle around (2)} The upper floor panel 31 constitutes the building unit 30 previously integrated with the upper floor wall panel 32. Therefore, in the unit building 10, the above (1) can be realized.
[0044]
{Circle around (3)} There is no need to set up a pillar below the two upper floor panels 31, and the floor 13 can be formed by installing the small floor panel 50 only by removing the outer peripheral frame 31A.
[0045]
{Circle over (4)} Since the single small floor panel 50 is straddled over the two upper floor panels 31, a floor step is formed between the two upper floor panels 31 and between the two upper floor building units 30. Does not occur.
[0046]
As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to the embodiments, and there may be a design change or the like without departing from the gist of the present invention. This is also included in the present invention.
[0047]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the open-air opening which straddles two upper floor panels can be formed, increasing the degree of freedom in a plan of a building.
[Brief description of the drawings]
FIG. 1 shows a layout of a building, (A) is a plan view of a lower floor, and (B) is a plan view of an upper floor.
FIGS. 2A and 2B show a blow-through structure according to the first embodiment, wherein FIG. 2A is a perspective view showing an intermediate construction state, and FIG. 2B is a perspective view showing a completed construction state.
FIG. 3 shows a part III in FIG. 2, wherein (A) is a perspective view and (B) is an end view.
4A and 4B show a blow-through structure according to a second embodiment, in which FIG. 4A is a perspective view showing an intermediate construction state, and FIG. 4B is a perspective view showing a completed construction state. FIG. 5A is a perspective view, and FIG. 5B is an end view.
[Explanation of symbols]
Reference Signs List 10 unit building 12 atrium opening 13 upper floor floor 30 upper floor building unit 31 upper floor panel 31A outer frame 31B opening 31C remaining floor part 32 upper floor wall panel 33 beam 40 column 50 small floor panel

Claims (7)

Two upper floor panels, at least partially open, are juxtaposed such that the openings are adjacent,
A floor structure spanning the two upper floor panels is erected, and the floor structure is used to form a floor beside the opening of the two upper floor panels;
A stairwell structure of a building in which two upper floor panels have opening portions that are not covered by the floor and are continuous vent holes. One upper floor panel where the opening and the remaining floor are mixed, and the other upper floor panel where the opening and the remaining floor are mixed are the boundary between the opening of one floor panel and the remaining floor and the other. Are arranged side by side so as to align the boundary between the opening part of the floor panel and the remaining floor part on a straight line,
A beam is erected along the boundary and straddling the two upper floor panels,
The beams support the side edges of the remaining floor of the two upper floor panels,
A stairwell structure for a building in which the openings of two upper floor panels are continuous stairwell openings. 3. The structure according to claim 2, wherein the upper floor panel is integrated with an upper wall panel in advance to constitute a building unit. It is a construction method of an atrium structure of a building according to claim 2 or 3,
An outer frame is provided around the entire circumference, and two upper floor panels, each having an opening and a floor remaining portion, are arranged within the outer frame, and the boundary between the opening of each upper floor panel and the floor remaining portion is aligned. Mounted on the lower floor,
Stand up the lower part of the remaining floor of the two upper floor panels,
The outer frames of the two upper floor panels are removed, and the outer frames sandwiched between the openings are removed.
Fixing both ends of the beam along the boundary of the two upper floor panels to the outer peripheral frame of each upper floor panel, supporting the side edge of the floor remaining portion of each upper floor panel with the beam;
A method of constructing an open-air structure of a building in which openings of two upper-floor floor panels are continuous open openings. Two upper floor panels, at least partially open, are juxtaposed such that the openings are adjacent,
A small floor panel spans the opening of the two upper floor panels and covers a part of the opening not entirely,
A stairwell structure of a building in which the opening portions of the two upper floor panels which are not covered by the small floor panels are continuous stairwell openings. 6. The structure according to claim 5, wherein said upper floor panel is integrated with an upper floor wall panel in advance to form a building unit. It is a construction method of a stairwell structure of a building according to claim 5 or 6,
Having an outer peripheral frame on the entire periphery, two upper floor panels at least a part of which in the outer peripheral frame are open, mounted on the upper part of the lower floor so that their openings are adjacent to each other,
The outer frames of the two upper floor panels are removed, and the outer frames sandwiched between the openings are removed.
Fixing both ends of the small floor panel covering a part of the opening part of the two upper floor panels which is not the whole, to the outer peripheral frame of each upper floor panel,
A method for constructing an open-air structure of a building in which openings that are not covered by small floor panels provided on two upper floor panels are continuous open openings.

Images