JP4355458B2 - Flat roof structure and roof unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a land roof structure and a roof unit in which a water gradient is provided and a substantially horizontal roof surface is formed.
[0002]
[Background]
Conventionally, flat roofs are used in addition to the general inclined roofs in buildings such as houses. In addition, even in a roof where a roof set is installed at the center of a flat roof called a standing roof, the peripheral portion is handled as a flat roof.
A flat roof is also adopted in a unit type building constituted by combining a plurality of building units. For example, there is a roof structure (conventional example 1: Japanese Patent Laid-Open No. 10-8621) in which a roof portion is divided into a plurality of roof units having a predetermined width, individually produced at a factory, and connected and assembled on site. There is a land roof structure (conventional example 2) in which a rising portion is formed around the land roof portion of each roof unit, and a drain pipe is provided for each unit to drain rainwater accumulated in the land roof portion.
[0003]
[Problems to be solved by the invention]
However, Conventional Example 1 does not disclose means for transporting the roof unit constituting the land roof to the construction site and combining it on the site. In other words, the technical example for rationally suspending the roof unit is not disclosed in Conventional Example 1, and it cannot be said that the field work can be reduced.
On the other hand, in the conventional example 2 in which a rise is formed around each unit and the water is drained for each unit, it is necessary to provide a pipe for draining to the outside for each unit. Will become complicated. Also from this point, in the conventional example 2, the construction at the site increases and the construction cost increases.
[0004]
An object of the present invention is to provide a land roof structure and a roof unit in which a water gradient is provided and a substantially horizontal roof surface is formed.
[0005]
[Means for Solving the Problems]
Therefore, in order to achieve the above object, the present invention employs the following configuration.
The invention according to claim 1 is a land roof structure in which a substantially flat roof 60 surface is constituted by a plurality of roof units 61, and the roof unit 61 constitutes the roof 60 surface. The slab 62 includes a slab 62 and a frame 63 that supports the slab 62. The slab 62 is supported by the frame 63 with a predetermined water gradient, and the edge of the slab 62 has a slab 62 of another adjacent roof unit 61. and the limbic are continuously watertight connection, and the frame 63 is installed receptacle 631 for hanging, opening 622 is a working hanging provided on the slab 62 Rutotomoni, the suspension A lid member 621 that closes the work opening 622 is provided, and the frame 63 includes a frame main body 63A in which steel frames are combined in a plane rectangular shape, and a long side of the frame main body 63A. And a plurality of support members 633 are joined to the frame main body 63A and the joists 63B, and slab receivers 632A and 632B are attached to these support members 633. The slab 62 is supported on the upper side of the slab receivers 632A and 632B, the lid member 621 is supported via the lid receivers 634A and 634B fixed on the upper side of the slab receivers 632A and 632B, and the slab 62 is supported. And a joist 63B that supports the lid member 621 via the lid receivers 634A and 634B are provided adjacent to each other .
[0006]
According to the first aspect of the present invention, since the slab 62 is previously supported by the frame 63 with a predetermined water gradient, it is not necessary to adjust the height of the slab 62 at the site, and the mutual roof units 61 are waterproofed. By simply connecting, the entire roof 60 becomes a continuous land roof 60 with a desired water gradient. Furthermore, since the hanging holder 631 is installed in the frame 63 and the work opening 622 is provided in the slab 62, the roof unit 61 can be installed with a crane or the like. Therefore, construction is not complicated and field work is reduced.
Further, after the operation, the opening 622 is closed by the lid member 621, so that the appearance of the roof 60 is improved. Furthermore, there is no possibility that drainage such as rainwater leaks from the opening 622.
[0007]
The invention according to claim 2 is the land roof structure according to claim 1, wherein a plurality of roof units 61 are arranged along the surface of the roof 60, and the boundary between the two roof units 61 at an intermediate position among the arranged roof units 61. The portion is the highest position, and both ends that are farthest from the boundary portion of the arranged roof units 61 are the lowest positions.
[0008]
In the invention of this configuration, since rainwater and the like are drained in two directions, the drainage can be surely performed.
[0009]
According to a third aspect of the present invention, in the flat roof structure according to the second aspect, a drainage groove 65 is installed at the lowest position of the arrangement of the roof units 61, and a drainage pipe 651 to the outside is provided at one end of the drainage groove 65. It is connected.
[0010]
In the invention of this configuration, since it is not necessary to drain each roof unit 61, the number of drain pipes 651 and the like is increased, and the construction at the site is not increased.
[0011]
The invention according to claim 4 is a roof unit 61 that is connected to form a flat roof 60 and includes a slab 62 that forms a surface of the roof 60 and a frame 63 that supports the slab 62. are installed receptacle 631 for hanging, along with the slab 62 is supported on a frame 63 with a predetermined water gradient, are working opening 622 hanging is provided Rutotomoni, opening for the hanging work 622 The frame 63 includes a frame main body 63A in which steel frames are combined in a planar rectangular shape, and a plurality of joists 63B joined between long sides of the frame main body 63A. A plurality of support members 633 are joined to the frame base 63A body and the joists 63B, and slab receivers 632A and 632B are attached to these support members 633. The slab 62 is supported on the upper side of the slab receivers 632A, 632B, the lid member 621 is supported via the lid receivers 634A, 634B fixed on the upper side of the slab receivers 632A, 632B, and the slab 62 And a joist 63B that supports the lid member 621 through the lid receivers 634A and 634B are provided adjacent to each other .
[0012]
In the invention of this configuration, since the slab 62 is supported by the frame 63 with a predetermined water gradient, it is not necessary to adjust the height of the slab 62, the construction is not complicated, and the workability is improved. In addition, since the frame 63 is provided with a receiving fixture 631 and the work opening 622 is provided in the slab 62, it is easy to install the roof unit 61 with a crane or the like.
Further, after the operation, the opening 622 is closed by the lid member 621, so that the appearance of the roof 60 is improved. Furthermore, there is no possibility that drainage such as rainwater leaks from the opening 622.
[0013]
The invention according to claim 5 is characterized in that, in the roof unit 61 according to claim 4, the frame 63 is a steel frame, and the slab 62 is a lightweight cellular concrete plate (hereinafter referred to as ALC plate).
[0014]
In the invention of this configuration, since the frame 63 is a steel frame, the slab 62 can be reliably supported, and the strength and rigidity of the roof 60 can be increased. In addition, since the slab 62 is made of an ALC plate, the weight per unit volume is smaller than that of a normal concrete plate, the weight of the roof 60 itself is reduced, and the burden on the building unit under the roof is reduced. In addition, there is a sound insulation effect on the lower-floor room.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 shows a building 1 according to the present embodiment. The building 1 includes a two-story building body 3 constructed on a foundation 2 and a roof 4 provided on the top of the building body 3.
Although not shown in the figure, the building body 3 is configured by combining a plurality of building units 30 configured by attaching a construction material such as a flooring material or a wall material to a substantially rectangular parallelepiped frame in which columns and beams are incorporated. The building body 3 has a terrace 10 on the first floor facing the south side, and a veranda 20 on the second floor.
Each building unit 30 is manufactured in advance at a factory and combined at a construction site.
[0018]
The roof 4 includes a land roof 60, a hut 50 provided on the top of the land roof 60, and a handrail 40 that surrounds the south side of the land roof 60.
The shed 50 includes a hut unit 51 and a roof portion 52 provided on the upper portion of the shed unit 51. The roof portion 52 has an inclined base panel (not shown), and a solar cell panel 54 is attached to the upper surface of the base panel.
The hut unit 51 is provided with a door 53 for entering and exiting the hut 50.
[0019]
As shown in FIG. 2, the flat roof 60 is configured by using four roof units 61 arranged in four rows in which three roof units 61 are arranged on the south side. The flat roof 60 has a water gradient that becomes a downward gradient toward the tip of the arrow P, and the middle portion of this arrangement, that is, the boundary between the roof unit 61 in the second row and the roof unit 61 in the third row from the south side is the highest part. The end portions of the first row and the fourth row are the most downstream portions. Further, the center roof units 61 in the first and fourth rows are inclined in the direction of arrow P. Rainwater collected by the water gradient is collected in the drainage grooves 65 provided in the longitudinal direction on the downstream side of the first and fourth row roof units 61 and is discharged from the drainage pipe 651. The drain pipe 651 is connected to a drain pipe (not shown) provided in the building unit 30 directly below the roof unit 61, and rainwater is discharged outside the building through the drain pipe.
[0020]
FIG. 3 is a plan view of the roof unit 61 indicated by the arrow A in the roof unit 61 in FIG. The roof unit 61 includes an ALC slab 62 and a perch 64 that serves as the floor of the hut 50, and the perch 64 is supported by a steel frame 63. The frame 63 is obtained by incorporating a joist 63B into a frame main body 63A having a rectangular plane shape having a U-shaped cross section. A brace 66 is provided on the frame 63. The slab 62 is supported by a slab receiver 632A or 632B provided on the frame 63 so as to have a predetermined water gradient. Further, the slab 62 is provided with an opening 622 for hanging work, and after the hanging work, the opening 622 is covered with a cement plate lid 621. Further, a space for installing the end panel 55 of the cabin unit 51 is provided in the central portion of the frame 63, that is, the portion between the slab 62 and the perch 64.
[0021]
Adjacent roof units 61 are waterproof connected. As a waterproof connection method, a waterproof sheet is installed on the surface of the slab 62, the waterproof sheet of one slab 62 is overlaid on the waterproof sheet of the other adjacent slab 62, and a heat seal or ultrasonic seal is applied to the overlapping portion. Alternatively, there is a method in which a waterproof sheet is installed on the upper surface of the slab 62 and the seam between adjacent slabs 62 is caulked.
[0022]
4 is a cross-sectional view in the IV-IV direction of FIG. 3, FIG. 6 (A) is a cross-sectional view in the VIA-VIA direction of FIG. 3, and FIG. 6 (B) is a cross-sectional view in the VIB-VIB direction of FIG. is there. As shown in these drawings, the slab 62 is supported by an L-shaped slab receiver 632A, and this slab receiver 632A is a U-shaped support member 633 joined to the groove-shaped portion of the joist 63B having a U-shaped cross section. It is supported by. By adjusting the attachment position of the slab receiver 632A to the support member 633, the slab 62 is supported with a predetermined water gradient.
5 is a cross-sectional view in the VV direction of FIG. 3, and FIG. 6C is a cross-sectional view in the VIC-VIC direction of FIG. The slab receiver 632B has the same structure as the slab receiver 632A, and is attached to a predetermined position of a U-shaped support member 633 having a U-shaped cross section joined to a groove-shaped portion of the U-shaped frame main body 63A.
[0023]
FIG. 7 shows a plan view of the opening 622 for the suspension work. Through the opening 622, the eyebolt 631 for suspension provided on the frame 63 can be suspended by a crane or the like. After the arrangement of the roof unit 61, the opening 622 is covered with a cement plate lid 621. Therefore, lid receivers 634A and 634B are provided in advance around the opening 622.
[0024]
FIG. 8 is a cross-sectional view in the VIII-VIII direction of FIG. A U-shaped support member 633 is joined to the groove-shaped portion of the joist 63B or the frame body 63A having a U-shaped cross section, and an L-shaped slab receiver 632A or 632B is attached to the support member 633, and this slab receiver 632A or 632B is attached. A U-shaped lid receiver 634A is provided on the top. Thereby, the height of the lid 621 and the slab 62 on the right side of the drawing is substantially the same, and a predetermined water gradient is maintained.
[0025]
9 is a cross-sectional view in the IX-IX direction of FIG. According to this figure, the lid member 621 is also supported at both ends in the IX direction by L-shaped lid receivers 634B.
[0026]
The structure of all the roof units 61 constituting the land roof 60 is basically the same as the roof unit 61 indicated by the arrow A. A rising portion 67 is provided at the edge of the roof unit 61 arranged facing the outside among these roof units 61.
[0027]
At the time of construction, a roof unit 61 having a slab 62 to which a water gradient is applied is manufactured in advance by incorporating a material other than the lid 621 at the factory. The roof unit 61 is transported to the construction site by a truck. At the construction site, the roof unit 61 is hung with a crane or the like and installed at a predetermined position. When using the crane, the hook suspended from the crane arm is locked to the eyebolt. Since the opening 622 is provided, the locking operation can be easily performed. Thereafter, the opening 622 is closed with the lid 621. Since the slabs 62 of the individual roof units 61 have already been given a predetermined water gradient, the land roof 60 is completed when the adjacent slabs 62 are waterproof-connected with a waterproof sheet or the like.
[0028]
Therefore, according to the present embodiment, since the slab 62 is previously supported by the frame 63 with a predetermined water gradient, it is not necessary to adjust the height of the slab 62 at the construction site, and the waterproof connection is made with a waterproof sheet or the like. Therefore, the assembly work is not complicated. Further, since the frame 63 is provided with the eyebolt 631 for suspension and the opening 622 for suspension on the slab 62, the roof unit 61 can be arranged with a crane or the like, the work efficiency is improved, and the construction period is increased. Can be shortened. Further, after the operation, the opening 622 is closed by the concrete plate lid 621, so that the appearance of the flat roof 60 is not impaired. Further, there is no possibility that rainwater or the like leaks from the opening 622.
[0029]
The flat roof 60 has an intermediate position in the arrangement, the boundary between the roof unit 61 in the second row and the roof unit 61 in the third row from the south side is the highest portion, and the end portions in the first row and the fourth row are the most downstream portions. Since rainwater is drained in two directions, it can be drained reliably, and it is not necessary to attach a drain pipe for each roof unit 61, so that the work at the site can be reduced and the appearance of the building 1 is good. Become. In addition, since the central roof units 61 in the first and fourth rows are inclined in the direction of the arrow, it is not necessary to attach the drainage grooves 65 to the central roof unit 61, and the field work is further reduced.
[0030]
Moreover, in this Embodiment, since the frame 63 was made into the steel frame, the slab 62 can be supported reliably and the intensity | strength and rigidity of the roof unit 61 can be improved. Further, since the frame 63 is provided with the breath 66, when a force is applied in the horizontal direction, there is no possibility that the roof unit 61 collapses due to, for example, a rolling earthquake. In addition, since the slab 62 is made of an ALC plate, the weight per unit volume is smaller than that of a normal concrete plate, the weight of the roof unit 61 itself is light, and it is easy to hang it with a crane during construction. become. Further, the burden on the lower building unit 30 is reduced, and there is a sound insulation effect on the lower-floor room.
[0031]
Since the U-shaped support member 633 is joined to the groove-shaped portion of the frame main body 63A or the joist 63B, the strength of the frame 63 that is the base of the roof unit 61 can be increased. Further, an L-shaped slab receiver 632A or 632B is attached to the support member 633, and the slab 62 is supported with a predetermined water gradient by adjusting the attachment position of the slab receiver 632A or 632B to the support member 633. It will be. Therefore, it is not necessary to make slab receivers of various dimensions according to the water gradient, so that handling can be facilitated and manufacturing costs can be reduced.
[0032]
Further, since the lid receivers 634A and 634B are provided around the opening 622, the lid member 621 can be reliably supported and fixed. By the lid receivers 634A and 634B, the position of the upper surface of the lid member 621 can be matched with the position of the upper surface of the adjacent slab 62, and the appearance of the land roof 60 is improved.
[0033]
It should be noted that the present invention is not limited to the above-described embodiment, but includes modifications and improvements as long as the object of the present invention can be achieved.
For example, in the above-described embodiment, the roof 4 is provided with the land roof 60 and the hut 50, but only a normal land roof may be used.
Further, the land roof 60 has a structure in which rainwater or the like is drained in two directions, but may have a structure in which drainage is drained in one direction. Further, the drainage groove 65 may be formed by cutting the slab 62 or may be configured by attaching a groove later.
Further, the hanging support is not limited to the eyebolt 631 but may be any one that can lock the hook of the crane. The eyebolt 631 is attached to the frame 63 so as to be horizontal to the lower surface of the slab 62, but may be attached in the vertical direction.
[0034]
【The invention's effect】
According to the first aspect of the present invention, since the slab is previously supported by the frame with a predetermined water gradient, it is not necessary to adjust the height of the slab at the site, and the roof units are connected to each other in a waterproof manner. Only the entire roof becomes a flat roof with the desired water gradient. In addition, since the hanging support is installed on the frame and the work opening is provided on the slab, the roof unit can be installed with a crane or the like. Therefore, construction is not complicated and field work is reduced.
Moreover, since this opening is closed by the lid material after the work, the appearance of the roof is improved. Furthermore, there is no possibility that drainage such as rainwater leaks from the opening.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a flat roof building according to an embodiment of the present invention.
FIG. 2 is a plan view showing a flat roof of the flat roof building.
FIG. 3 is a plan view showing a roof unit according to an embodiment of the present invention.
4 is a cross-sectional view taken along line IV-IV in FIG.
5 is a cross-sectional view taken along line VV in FIG.
6A is a cross-sectional view taken along line VIA-VIA in FIG. 3, and FIG. 6B is a cross-sectional view taken along line VIB-VIB in FIG. 3, and FIG. 6C is a cross-sectional view taken along line VIC-VIC in FIG.
FIG. 7 is a plan view showing a main part of the roof unit.
8 is a cross-sectional view taken along line VIII-VIII in FIG.
9 is a cross-sectional view taken along line IX-IX in FIG.
[Explanation of symbols]
60 Land Roof 61 Roof Unit 62 Slab 621 Lid 622 Opening 63 Frame 631 Eye Bolt 65 Drain Groove 651 Drain Pipe

Claims (5)

A substantially flat roof surface is a land roof structure composed of a plurality of roof units,
The roof unit includes a slab that constitutes a roof surface and a frame that supports the slab. The slab is supported by the frame with a predetermined water gradient, and an edge of the slab is adjacent to another slab. the edge of the slab of the roof units are continuously watertight connection, and wherein the frame is installed receptacle for hanging, Rutotomoni opening is provided for the work suspended in the slab, the A lid that closes the opening for hanging work is provided,
The frame includes a frame main body obtained by combining steel frames into a planar rectangular shape, and a plurality of joists joined between long sides of the frame main body.
A plurality of support members are joined to the frame main body and the joists, and slab receivers are attached to these support members, and the slab is supported on the upper side of the slab receiver and fixed to the upper side of the slab receiver. The lid member is supported via a lid receiver,
A land roof structure characterized in that a joist supporting the slab and a joist supporting the lid member via the lid receiver are provided adjacent to each other . In the flat roof structure of Claim 1,
A plurality of roof units are arranged along the roof surface, and a boundary portion between two roof units in an intermediate position is the highest position among the arranged roof units, and the boundary portion of the arranged roof units is the boundary portion. A flat roof structure characterized in that both ends farthest from each other are at the lowest position. The flat roof structure according to claim 2,
A land roof structure characterized in that a drainage groove is installed at the lowest position of the arrangement of the roof units, and a drainage pipe for guiding drainage to the outside of the building is connected to one end of the drainage groove. A plurality of roof units connected to form a flat roof,
A slab that constitutes the roof surface; and a frame that supports the slab. The frame is provided with a hanging support, and the slab is supported by the frame with a predetermined water gradient and suspended. provided the opening for the lower work Rutotomoni, lid is provided for closing the opening for the suspension work,
The frame includes a frame main body obtained by combining steel frames into a planar rectangular shape, and a plurality of joists joined between long sides of the frame main body.
A plurality of support members are joined to the frame main body and the joists, and slab receivers are attached to these support members, and the slab is supported on the upper side of the slab receiver and fixed to the upper side of the slab receiver. The lid member is supported via a lid receiver,
The roof unit , wherein the joist supporting the slab and the joist supporting the lid member via the lid receiver are provided adjacent to each other . The roof unit according to claim 4,
The roof unit characterized in that the frame is a steel frame and the slab is a lightweight cellular concrete board.

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