JP6388169B2 - Outdoor floor waterproof structure - Google Patents

Description

  The present invention relates to a waterproof structure for an outdoor floor provided outdoors such as a balcony or an external corridor.

  Since outdoor floors such as balconies and exterior corridors that are provided in outdoor spaces have a high possibility of rainwater entering the building, various waterproofing measures have been taken.

  For example, in the invention described in Patent Document 1, a method for draining water that enters from a joint of an exterior material attached to a casing member of an outdoor floor or water that flows on the floor surface in an outdoor floor such as a balcony is proposed. . In this invention, the method of discharging | emitting the water which penetrate | invaded from the support | pillar penetration part of the balcony wall provided in the joint of an exterior material or a draining material to the outdoors by the draining provided in the exterior material is proposed. Also, the floor joists that support the floor are installed so as to incline downward toward the outdoor direction, and the water on the floor surface that flows toward the outdoor direction is provided on the upper surface of the floor material that is placed under the water. Therefore, a method of draining by leading to a drain pipe under the floor has been proposed. Further, in the present invention, a gutter is provided inside the waterproof pan laid on the floor joist so that water can be drained even if water enters the waterproof pan.

  However, in this invention, since it is assumed that water permeates into the back side of the exterior material, when damage or a defect occurs in the waterproof function of each part taken on the back side of the exterior material, for example, it is provided in the draining material. There is a risk that water can easily enter the building from the through-hole part of the balcony wall. In addition, the joist has a water gradient on the floor surface, but at the bottom of the opening of the floor material that collects water on the floor surface, there is a gradient for guiding the water to the drain pipe. There is a possibility that water will collect under the floor. Further, since the shape of the waterproof pan is complicated, there is a problem that the manufacturing cost increases.

JP 2009-264031 A

  Accordingly, the present invention has been made in view of the above-described problems, and prevents leakage of water from a decorative cover provided on the outer peripheral portion of the outdoor floor in an outdoor floor provided in an outdoor space such as a balcony or an external corridor. Another object of the present invention is to provide an outdoor floor waterproof structure that is economically superior by reliably draining water flowing on the floor surface to improve the drainage function of the outdoor floor.

The waterproof structure of the outdoor floor of the present invention includes a plurality of arms protruding in the outdoor direction of a building, and a beam arranged orthogonal to the arms on the outdoor side of the ends of the arms and joined to the ends of the arms A floor structure having a material, a base portion that is fixed to an outdoor side surface of the beam material and protrudes in an outdoor direction, and a handrail that is disposed outside the outer peripheral side surface of the floor structure and is supported by the base portion. the a cosmetic cover which is supported by the floor structure, wherein the handrail has a pillar portion provided with a horizontal flange portion which is joined to the base above said base at the lower end, the makeup cover, a fixed portion sandwiched between said base and said flange portion, said edge vertical from the fixed portion, have a, a vertical portion covering the outside surface of said base, said and said flange portion and said fixed portion base The upper surface of each is formed with insertion holes that overlap and align with each other, Ne combined were by inserting the insertion hole the bolt is characterized in that bonding the base and the flange portion.

  The waterproof structure of the outdoor floor according to the present invention is characterized in that a watertight material is interposed between the flange portion and the fixed portion.

Waterproof structure for outdoor floors of the invention, the floor structure, the bracket to have further a flat deck being laid, the bracket is placed to be inclined downward toward the outside direction, the The floor slab is characterized by a uniform thickness.

  The waterproof structure of the outdoor floor according to the present invention is characterized in that the floor structure is further provided with a drainage bin that is installed between the adjacent floor slabs and has a gradient means and a bin.

According to the waterproof structure of the outdoor floor of the present invention, the handrail is joined to the base portion supported by the floor structure portion, and the fixing portion of the decorative cover is sandwiched between the base portion and the pillar portion of the handrail. The handrail can be installed outside the floor structure without providing a large cutout for avoiding interference with the pillar portion. Therefore, water can be prevented from entering between the decorative cover and the pillar portion, and the waterproofness can be improved. In addition, insertion holes that are aligned and aligned are provided in the flange portion of the column portion, the fixing portion of the decorative cover, and the upper surface of the base portion, and communicated by bolts. Therefore, it is only necessary to provide an insertion hole through which the bolt is inserted in the fixing portion of the decorative cover, and it is not necessary to provide a large notch in the fixing portion to avoid interference with the pillar portion, so that waterproofness is improved. be able to.

  According to the waterproof structure of the outdoor floor of the present invention, the watertight material is sandwiched between the flange portion and the fixed portion, so that water can be prevented from entering between the flange portion and the fixed portion, and the waterproof property is improved. Can be improved.

  According to the waterproof structure of the outdoor floor of the present invention, since the arms are inclined downward toward the outdoor direction, it is not necessary to provide a water gradient with the floor slab placed on the arms, and the floor having a uniform thickness A plate can be laid on the upper surface of the arm. Therefore, it is not necessary to produce a special floor slab with a gradient even when using a long floor slab molded like an extruded cement slab, lightweight cellular concrete slab, or precast concrete slab. Excellent waterproof structure can be constructed.

  According to the waterproof structure of the outdoor floor of the present invention, the drainage bin is installed between the adjacent floor slabs, so that the water on the upper surface of the floor slab flowing according to the inclination can be collected in the drain bin. It is possible to prevent water from accumulating on the top. Moreover, since the drainage box trough has a gradient means, the water which flowed into the drainage box trough can be drained reliably.

Sectional drawing which shows the waterproof structure of an outdoor floor. The top view which shows the waterproof structure of an outdoor floor. XX sectional drawing of FIG. The disassembled perspective view which shows the waterproof structure of the outdoor floor around a handrail. The elements on larger scale of A of FIG. The disassembled perspective view which shows the waterproof structure of the outdoor floor around a floor slab. The fragmentary sectional view which shows the attachment part of a support plate and a brace. The elements on larger scale of B of FIG.

  Hereinafter, the best embodiment of the waterproof structure of the outdoor floor will be described with reference to the drawings. As shown in FIG. 1, the waterproof structure 1 for an outdoor floor according to the present embodiment includes a floor structure 2 provided so as to protrude in an outdoor direction of a building, and a base 3 that is supported by the floor structure 2 and joined to a handrail 4. And a handrail 4 disposed outside the outer peripheral side surface of the floor structure 2 and a decorative cover 5 supported by the floor structure 2.

  As shown in FIGS. 1 and 2, the floor structure 2 joins the ends of a plurality of arms 6 protruding in the outdoor direction of the building and beam members 7 arranged orthogonal to the arms 6, A flat floor slab 8 is laid on the upper surface of the material 7 and the arm 6. Between adjacent floor slabs 8, a drain box 9 for collecting water that flows down on the upper surface of the floor slab 8 is provided. A grating lid 10 having a plurality of openings is laid above the drain box 9. As shown in the figure, a ceiling base material 22 and an eaves-back ceiling material 23 may be installed under the arm 6.

  In the present invention, the outdoor direction refers to a direction projecting from the outer wall surface facing the outside of the building outer wall 21, and the indoor direction refers to a direction facing the indoor side from the outer wall surface facing the outdoor of the building outer wall 21. Point to.

  First, a waterproof structure around the handrail 4 will be described. The base 3 is a member that is supported by the beam member 7 and joined to the handrail 4. Specifically, as shown in FIGS. 3 to 5, a flat plate portion 3 a to be joined to the beam member 7, a protruding portion 3 b that protrudes in the outdoor direction from the center in the width direction of the plate portion 3 a, and a protruding portion It is located on the upper surface of 3 b and is formed by a joint 3 c that is joined to the handrail 4. The plate portion 3a has first bolt holes 3d for inserting bolts V to be joined to the beam member 7 on both sides with the protruding portion 3b interposed therebetween. The protruding portion 3b is a substantially trapezoidal section in cross-section connecting the plate portion 3a and the joint portion 3c, and can transmit the load of the handrail 4 to the plate portion 3a when the joint portion 3c and the handrail 4 are joined. Further, the length of the protruding portion 3b protruding in the outdoor direction is adjusted by the distance in the horizontal direction between the beam member 7 and the handrail 4. The joining portion 3 c is a flat plate-like portion joined to the handrail 4 and forms a first insertion hole 3 e for inserting a bolt V joined to the handrail 4. Further, the first insertion hole 3e has a female screw formed in the inner peripheral portion, and can be screwed to the bolt V to be inserted.

  The handrail 4 is installed outside the outer peripheral side surface of the floor structure 2. As shown in FIG.1 and FIG.3, the handrail 4 supports the handrail 4, the some pillar part 4a joined to the base 3, the decorative material 4b which covers the outer periphery of the pillar part 4a, the pillar part 4a, and the decorative material 4b The cap 4c that covers the upper end of the face and the face material 4d fixed to the decorative material 4b. The column portion 4 a includes a column member 41 standing outside the outer peripheral side surface of the floor structure 2, and a flat plate-like flange portion 42 formed at the lower end portion of the column member 41 and joined to the base portion 3. . The flange portion 42 is formed in parallel with the joint portion 3 c and forms a second insertion hole 4 e for inserting a bolt joined to the base portion 3.

  The decorative cover 5 is a long member disposed on the outer periphery of the floor structure 2 as shown in FIG. 2, and as shown in FIG. 5, a fixing part 5 a sandwiched between the base 3 and the pillar part 4 a, A hanging portion 5b that hangs downward from an end portion of the fixing portion 5a on the outdoor direction side and covers the outer surface of the base portion 3, an uneven drainer 5c that extends downward from the lower end of the hanging portion 5b, and indoors from the lower end of the drainer 5c. The lower plate portion 5d is bent in the direction and closes the end portion of the eaves ceiling material on the outdoor side. The fixing portion 5a forms a third insertion hole 5e at a position that coincides with the first insertion hole 3e and the second insertion hole 4e when the joining portion 3c and the flange portion 42 are overlapped with each other. The drainer 5c can prevent water attached to the surface on the outdoor side of the decorative cover 5 from reaching the eaves ceiling of the downstairs. Further, as shown in FIG. 4, the decorative cover 5 is provided with a goby portion 5f bent inward by an amount corresponding to the thickness of the decorative cover 5 at one end portion in the longitudinal direction. 5f can be fitted together. Further, the goby portion 5f forms a fourth insertion hole 5g at a position matching the third insertion hole 5e provided in the fixing portion 5a of the adjacent decorative cover 5 when the adjacent decorative covers 5 are overlapped. Yes. The decorative cover 5 can be joined at a position where the handrail 4 is installed. The lower plate portion 5d can be omitted when the eaves ceiling material is extended to the lower end of the hanging portion 5b. Further, the drainer 5c may be provided not on the lower end of the hanging part 5b but on the lower plate part 5d.

  As shown in FIGS. 4 and 5, the watertight material 11 can be sandwiched between the flange portion 42 and the fixed portion 5a. The watertight material 11 can adjust the structure and street of the column part 4a while preventing water from entering between the flange part 42 and the fixed part 5a. The watertight material 11 forms a fifth insertion hole 11a that matches the second insertion hole 4e and the third insertion hole 5e when sandwiched between the flange portion 42 and the fixing portion 5a. In FIG. 4, the shape of the watertight material 11 is rectangular in plan view, but is not particularly limited. The material of the watertight material 11 is not particularly limited, but a hard resin excellent in watertightness and durability is assumed.

  Next, the construction procedure of the waterproof structure 1 for the outdoor floor using the base 3, the handrail 4 and the decorative cover 5 described above will be described. First, as shown in FIG. 4, the plate portion 3 a of the base 3 is brought into contact with the beam member 7 arranged in parallel with the building outer wall 21, and the second bolt hole 7 a and the plate portion provided in the beam member 7 in advance. With the position of the second bolt hole 3d of 3a matched, the bolt V is inserted from the outdoor direction side of the beam member 7, and the bolt V protruding toward the indoor direction side of the beam member 7 is screwed with the nut N. The base 3 is fixed to the beam member 7.

  Subsequently, as shown in FIG. 4, the fixing portion 5a of the decorative cover 5 is placed on the upper surface of the joint portion 3c, and the fixing portion 5a of the decorative cover 5 adjacent to the goby portion 5f is fitted. At this time, the fixing portion 5a, the goby portion 5f, and the joining portion 3c are overlapped so that the first insertion hole 3e, the third insertion hole 5e, and the fourth insertion hole 5g are matched. Next, the watertight material 11 is installed on the surface of the fixed portion 5 a on the outdoor side, and the flange portion 42 of the column portion 4 a is disposed above the watertight material 11. Then, in a state where the respective insertion holes are aligned, the bolts V are communicated with the respective insertion holes from above the flange portion 42, screwed with the female screw of the first insertion hole 3 e, and the handrail 4 is joined to the base portion 3. Build a waterproof structure around 4 handrails.

  Thus, since the handrail 4 does not penetrate the decorative cover 5, it is only necessary to form a hole for inserting the bolt V in the decorative cover 5, and it is not necessary to provide a large cutout or opening in the decorative cover 5. Can be improved.

  Moreover, the height of the bolt V inserted into each insertion hole can be finely adjusted by the female screw of the first insertion hole 3e. And since the watertight material 11 is inserted | pinched between the flange part 42 and the fixing | fixed part 5a, when joining the handrail 4 and the base 3 with a volt | bolt, the standing and the street of the pillar part 4a can be adjusted, and construction of each place Construction can be performed while absorbing errors.

  Next, the waterproof structure around the floor slab will be described. As shown in FIGS. 1 and 6, the arm 6 of the floor structure 2 described above is a long steel member that supports the floor slab 8 and is supported by an indoor beam 12 that is a beam inside the building. Plate 6a, support plate 6a and bolt 6 and arm portion 6b on which floor slab 8 is placed, and connecting portion 6c formed at the end of arm portion 6b in the outdoor direction and connecting arm 6 and beam material 7 It is constituted by.

  The support plate 6a is a member that joins the indoor beam 12 and the arm portion 6b. As shown in FIG. 1, a plate-like plate member that is fixed to the indoor beam 12 by welding and is bolted to the arm portion 6b to support the arm portion 6b. And a set of two support plates 6a project in the outdoor direction. The end fixed to the indoor beam 12 of the support plate 6a gradually becomes wider from the building outer wall 21 toward the indoor direction. In addition, two or more first through holes 61 for inserting bolts V for joining the support plate 6a to the arm portion 6b are formed in the portion in contact with the arm portion 6b in the outdoor direction. As shown in FIG. 7, the plurality of first through holes 61 are such that the center point of the first through hole 61 formed on the outdoor direction side is more than the center point of the first through hole 61 formed on the indoor direction side. Is also formed so as to be positioned below.

  As shown in FIGS. 1 and 6, the arm portion 6 b is formed by welding two C-shaped steel cross-section C-shaped back surfaces together to form an H-shaped steel, and a web 62 joined to the support plate 6 a and the connecting portion 6 c. And flanges 63 projecting perpendicularly to the web 62 from both ends in the width direction of the web 62. As shown in FIG. 7, two or more second through holes 64 for inserting bolts V to be joined to the support plate 6a are provided at the longitudinal ends of the web 62 that are joined to the support plate 6a. . The plurality of second through holes 64 have no vertical displacement between the center points, and when the web 62 and the support plate 6a are brought into contact with each other, the first through holes 61 and the horizontal distances are aligned with each other. Is formed. In FIG. 6, the arm portion 6b is formed by using two C-shaped steels. However, if the above function can be performed, a single C-shaped steel or H-shaped steel can be used as the arm portion 6b. Also good.

  As shown in FIGS. 1 and 6, the connecting portion 6 c is a member that connects the arm portion 6 b and the beam member 7, an arm joint portion 65 welded to the web 62 of the arm portion 6 b, and the arm joint portion 65 in the outdoor direction. From the side end, the beam joint 66 protrudes perpendicularly to the arm joint 65 and is joined to the beam member 7. As shown in FIG. 5, the beam joint portion 66 is formed with a fourth through hole 67 for inserting a bolt V to be joined to the beam member 7. Although not shown, the fourth through holes 67 are provided on both sides of the arm joint portion 65. The fourth through-hole 67 is a second bolt hole 7a formed in the beam member 7 and a first bolt hole formed in the plate portion 3a of the base 3 when the beam joint portion 66 and the beam member 7 are brought into contact with each other. It is formed at a position aligned with 3d.

  As shown in FIGS. 1 and 6, the floor slab 8 is a flat floor material supported by the arm 6 and the beam member 7, and all have a uniform thickness. Moreover, as shown in FIG. 1, the floor slab 8 which fixes the drain box trough 9 is formed with an L-shaped notch 8a at the side end in the width direction. The material of the floor slab 8 is not particularly limited, but a long floor slab formed as an extruded cement plate, a lightweight cellular concrete plate, or a precast concrete plate is assumed.

  As shown in FIGS. 1 and 6, the drain box 9 is installed between adjacent floor slabs 8, collects water on the upper surface of the floor slab 8 and guides it to the drain drain 13. It is a long cocoon. The drain box 9 is fixed to the floor slab 8 by bending the upper side of the box 9a open to receive water and the upper end of the side plate contacting the floor slab 8 of the box 9a to the outside of the box 9a. The engaging portion 9b and the drainage hole 9c connected to the drainage drain 13 are provided in the box rod 9a. As shown in FIG. 8, the box cage 9a is composed of a bottom plate 91 that forms a bottom surface, and a side plate 92 that protrudes upward from each side end of the bottom plate 91 and forms a side surface. The bottom plate 91 is inclined toward the drain hole 9c, so that the collected water can be reliably guided to the drain drain 13. The locking portion 9 b includes an extension portion 93 that extends outward from the longitudinal upper end of the side plate 92, a drooping portion 94 that hangs downward from the longitudinal end of the extending portion 93, and a lower end of the drooping portion 94. It is comprised from the mounting part 95 extended outside and mounted in the floor slab 8. As shown in FIG. The upper surfaces of the two extending portions 93 located on both sides of the side plate portion 92 are formed so as to be flush with each other, and the grating lid 10 is laid on the upper portion when installed between the floor slabs 8. The hanging portion 94 is formed such that when the grating lid 10 is laid on the extending portion 93, the upper surface of the grating lid 10 and the upper surface of the floor slab 8 have substantially the same height. As shown in FIG. 6, a plurality of holes 96 are formed on the surface of the mounting portion 95 at regular intervals in the longitudinal direction for inserting the fixture 14 to be fixed to the floor slab 8.

  The grating lid 10 is a steel member that covers the upper side of the drain box 9 and prevents accumulation of dust in the drain box 9 and prevents an accident in which a pedestrian fits in the drain box 9. Can do. As shown in FIG. 6, a large number of openings are provided on the upper surface of the grating lid 10 so that water on the floor slab 8 flows down from the openings into the drain box 9. The opening shape of the grating lid 10 is not particularly limited as long as it has the above-described function.

  Then, the construction procedure of the waterproof structure around the floor slab 8 using the floor structure 2 mentioned above is demonstrated. First, the web 62 of the arm portion 6b is inserted between the two support plates 6a welded to the indoor beam 12 in advance, and the positions of the first through hole 61 and the second through hole 64 are aligned. At this time, as described above, the center points of the plurality of first through holes 61 are displaced in the vertical direction, and the center points of the plurality of second through holes 64 are not displaced in the vertical direction. In addition, the arm portion 6b inevitably inclines downward toward the outdoor direction. In this state, the bolt V is communicated with the first through hole 61 and the second through hole 64 and is fastened and fixed with the nut N. Next, the beam joint portion 66 of the connecting portion 6 c in which the arm joint portion 65 is welded to the web 62 in advance and the beam member 7 arranged orthogonal to the arm tree 6 are brought into contact with each other, and are joined with bolts V. At this time, the base 3 and the arm 6 are joined by connecting the bolt V to the fourth through hole 67, the second bolt hole 7a, and the first bolt hole 3d formed in the base 3 and tightening and fixing with the nut N. can do.

  Next, as shown in FIG. 6, a floor slab 8 is laid on the upper surfaces of the arms 6 and the beam members 7. At this time, the brace 6 and the beam member 7 joined to the brace 6 are inclined downward in the outdoor direction, so that a water gradient is formed on the upper surface of the floor slab 8. Subsequently, the drain box 9 is installed between the adjacent floor slabs 8. The position at which the drain box 9 is provided is not particularly limited, but it is preferably provided at a position close to the bottom of the water gradient. First, as shown in FIG. 6 and FIG. 8, the box trough 9 a of the drain bin trough 9 is fitted between the floor slab 8, and the bottom surface of the mounting portion 95 is brought into contact with the bottom surface of the notch 8 a of the floor slab 8. Then, a fixing tool 14 such as a screw or a screw is inserted into the hole 96 of the mounting portion 95 and fixed to the floor slab 8 with a tightening fixing tool, and the upper portion of the mounting portion 95 is filled with the caulking material 15 from the hole 96. Prevent water ingress. Then, the drainage drain 13 is connected to the lower part of the drainage hole 9c, and the grating lid 10 is laid on the upper part of the extension part 93 to construct a waterproof structure around the floor slab 8.

  Thus, since the arm 6 is installed to be inclined downward toward the outdoor direction, it is not necessary to form a water gradient with the floor slab 8, and the floor slab 8 having a uniform thickness can be laid. . Therefore, when using a long floor slab 8 molded like an extrusion-molded cement slab, a lightweight cellular concrete slab, or a precast concrete slab, there is no need to specially process the floor slab 8 and it is economically superior. A waterproof structure can be constructed. In addition, since the drain box 9 having a gradient between the floor slabs 8 is provided, the water flowing down to the upper surface of the floor slab 8 can be surely drained. Moreover, if the grating lid | cover 10 is removed, the inside of the drainage jar 9 can be visually confirmed, and the maintenance after construction can be performed easily.

  Here, the description has been made on the assumption that a column is not erected at the lower part of the floor structure 2, but the waterproof structure 1 of the outdoor floor of the present application is not limited to this, and the downstairs It can also be used when a pillar is installed on the roof or on a flat roof on the rooftop floor.

  Needless to say, the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The present invention can be suitably used for an outdoor floor provided outdoors such as a balcony or an external corridor.

DESCRIPTION OF SYMBOLS 1 Waterproofing structure of outdoor floor 2 Floor structure member 3 Base 3e First insertion hole 4 Handrail 4a Pillar part 42 Flange part 4e Second insertion hole 5 Cosmetic cover 5a Fixing part 5b Hanging part 5e Third insertion hole 6 Arm 8 Floor slab 9 Drainage box 9a Box box 11 Watertight material V Bolt

Claims (4)

A floor structure having a plurality of arms projecting in the outdoor direction of the building, and a beam member arranged orthogonally to the arms on the outdoor side of the ends of the arms and joined to the ends of the arms, and
A base portion fixed to the outdoor side surface of the beam member and protruding in the outdoor direction ;
A handrail disposed on the outer peripheral side surface of the floor structure and supported by the base,
A decorative cover supported by the floor structure,
The handrail has a pillar portion provided at the lower horizontal flange portion which is joined to the base above said base,
The decorative cover includes a fixing portion sandwiched between the base portion and the flange portion, and a hanging portion that hangs down from the fixing portion and covers an outer surface of the base portion ,
The upper surfaces of the flange portion, the fixed portion, and the base portion are formed with insertion holes that overlap and align with each other,
A waterproof structure for an outdoor floor, wherein a bolt is inserted into the overlapped insertion hole to join the flange portion and the base portion. The waterproof structure for an outdoor floor according to claim 1, wherein a watertight material is interposed between the flange portion and the fixed portion. The floor structure is
It further has a flat floor slab laid on the arm,
The arm is installed to be inclined downward toward the outdoor direction,
The slab is waterproof structure for outdoor floors according to claim 1 or 2, wherein the thickness is uniform. The floor structure is
The waterproof structure for an outdoor floor according to claim 3 , further comprising a drainage bin installed between the adjacent floor slabs and having a gradient means and a box bin.

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