JPH10273928A - Handrail wall structure of balcony and construction method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handrail wall structure and it construction method which can reduce the weight f a skeleton of a balcony, simplify the work at site greatly, shorten a period of construction work, facilitate the industrialization of constituent members of a handrail wall to reduce cost, and have good appearance which is almost equal to that of conventional handrail wall. SOLUTION: A handrail wall 1 of a balcony is provided with a precast handrail frame 2 and a precast outer wall plate 10 which are erected vertically in a tip part Y1 of a reinforced concrete floor system Y of the balcony which is provided in such a manner than it overhangs outward and substantially horizontally from a vertical external wall of a building. The handrail frame 2 is vertically erected in the tip part Y1 of the reinforced concrete floor system Y by embedding and fixing lower end parts of a support 3 which are arranged at an interval in the longitudinal direction of the handrail frame 2 along the tip part Y1 of the reinforced concrete floor system Y and the outer wall plate 10 is fixed at a proper section on an outer face of the handrail frame 2 to constitute a wall part 1a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handrail provided along the tip of a reinforced concrete floor slab (also referred to as a slab) of a balcony, veranda or terrace (hereinafter referred to as a balcony or the like) in a building such as an apartment house. More particularly, the present invention relates to a handrail wall structure including a precast handrail frame and a precast outer wall plate.

[0002]

2. Description of the Related Art Conventionally, this type of handrail wall structure has been formed by pouring concrete on site as in the case of slab construction. Further, generally, a fence-shaped handrail portion is provided adjacent to the handrail wall. The reinforced concrete handrail wall is formed by forming a formwork together with a formwork on the slab side at the site, arranging reinforcement in each formwork, pouring concrete, and solidifying. Because such construction requires a lot of labor and time, for example,
A structure of a cantilever slab described in JP-A-3-244723 has been proposed.

[0003] This cantilever slab structure is composed of a precast (also abbreviated as PC) handrail wall and a concrete slab cast in place. The PC handrail wall has reinforcing steel bars inside it and one reinforcing steel bar. A portion (length extending into the slab) protrudes from the lower part of the handrail wall, and a nut anchor is provided on at least one of the upper end part of the PC handrail wall or the lower part on the slab side.

[0004]

However, the cantilever slab structure described in the above publication has the following problems.

[0005] PC handrail walls are easier to construct than those formed using a formwork. However, since it is necessary to increase the thickness of concrete so that the reinforcing bars arranged inside are not exposed, The weight is large and the weight has not been improved.

The PC handrail wall is fixed by embedding a reinforcing bar protruding from the lower part in the slab. When the slab is formed using a mold or the like, the PC handrail wall is erected on the mold. Thereafter, concrete is cast in a state where the protruding portion of the reinforcing bar is inserted into the formwork, thereby integrating the slab and the PC handrail wall. For this reason, from the beginning of the concrete casting work until the concrete is completely solidified,
C It is necessary to keep the handrail wall upright, and such work requires skill and time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and can reduce the weight of a vehicle such as a balcony, greatly simplifying on-site work, shortening the work period, and furthermore, constituting members of a handrail wall. It is an object of the present invention to provide a handrail wall structure such as a balcony and the like and a construction method thereof, which can be easily industrialized and cost reduction can be achieved, and the appearance thereof is not inferior to that of a conventional concrete handrail wall.

[0008]

In order to achieve the above object, a handrail wall structure such as a balcony according to the present invention comprises:
Balcony railing wall structure equipped with a precast railing frame and a precast outer wall plate that stand upright at the tip of a reinforced concrete floor slab such as a balcony that extends almost horizontally outward from the vertical outer wall of the building And b) by embedding and fixing the lower ends of the pillars arranged at intervals in the longitudinal direction of the handrail frame along the tips of the reinforced concrete floor slabs,
The handrail frame is erected perpendicularly to the tip of the reinforced concrete floor slab, and c) the outer wall plate is fixed in place on the outer surface of the precast handrail frame.

[0009] According to the handrail wall structure for a balcony or the like according to the present invention having the above-described structure, the handrail wall usually provided adjacent to the handrail frame is provided with a hand standing at the tip end of the slab. By simply attaching the precast outer wall plate to the sliding frame, it can be easily formed, so it is possible to omit the on-site work such as using the formwork for the wall part, arranging the reinforcing, placing the concrete, etc. as in the past, Handrail wall can be completed in a short time. Also, as compared with the conventional reinforced concrete handrail wall structure, a handrail frame is continuously provided on the living room side (inside) of the outer wall plate, so that various hardware such as laundry clothes can be easily placed at any position. It can be conveniently installed.

[0010] As described in claim 2, d) an extruded plate can be used for the outer wall plate.

According to the second aspect of the present invention, the use of an extruded plate made of, for example, mortar facilitates handling and is lighter than a conventional reinforced concrete outer wall, and supports a reinforced concrete floor slab. The strength can be reduced, and the overall weight of the balcony and the like can be reduced. In particular, by using an extruded plate made of mortar or the like, the surface can be tiled.

According to a third aspect of the present invention, e) the vertical wall at the tip end of the reinforced concrete floor slab is constituted by a second extruded plate, and f) the common surface of the second extruded plate and the outer surface of the extruded plate. A tile may be attached, and g) a gap between the extruded plate side tile and the second extruded plate side tile may be sealed.

According to the third aspect of the present invention, since the vertical wall at the tip end of the floor slab is formed by the precast second extruded plate, the second extruded plate can be used as a part of the mold of the floor slab.
By driving the second extruded plate into concrete, on-site work can be simplified, finishing work is facilitated, and the finish is good. In addition, the appearance of the handrail outer wall plate is the same as the vertical wall at the tip of the balcony slab, and it is connected by sealing to give a sense of unity, so the same finish as the conventional cast-in-place concrete handrail outer wall can be expected .

[0014] According to a fourth aspect of the present invention, h) a fitting having a projection which can be inserted into a hollow portion penetrating in a vertical direction of the extruded plate is provided at a lower portion of the support so as to project outward. The projection of the mounting hardware is inserted into the hollow portion of the extrusion-molded plate, and i) a lid-plate mounting hardware having a projection that can be inserted into the hollow portion of the extrusion-molded plate. It is preferable that the extruded plate is inserted downward into the hollow portion of the supporting member, and the extruded plate is sandwiched between the mounting member and the mounting member, and is attached to the upper portion of the support.

According to a fifth aspect of the present invention, j) a mounting member having a projection which can be inserted into a hollow portion penetrating in a vertical direction of the extruded plate is provided at a lower portion of the support column so as to protrude outward. A projection of a metal fitting is inserted into a hollow portion of the extrusion-molded plate, and k) a lid-shaped mounting metal fitting with a cushion material attached to an inner surface having a gate shape that can be fitted to an upper end of the extrusion-molded plate, and a concave portion thereof. A place may be fitted downward to the upper end of the extruded plate, and the extruded plate may be sandwiched between the mounting hardware and attached to the upper portion of the support.

According to the fourth and fifth aspects of the invention,
The extruded plate can be easily fixed to the support of the handrail frame by sandwiching the extruded plate between the upper and lower mounting hardware, and at least the hole in the hollow part on the upper surface of the extruded plate is closed by the lid plate and mounting hardware, so that rainwater etc. Does not enter the hollow part.

[0017] As described in claim 6, m) the outer wall plate and the second extruded plate may be integrated with the handrail frame in advance.

According to the sixth aspect of the present invention, the outer wall plate can be integrated with the handrail frame in a factory or the like, and cost reduction can be achieved by mass production. In addition, the handling is easy, the labor for attaching the outer wall plate on site is omitted, and the workability is improved.

The method for constructing a handrail wall structure such as a balcony according to the present invention (Claim 7) includes the steps of: A) using a reinforced concrete floor slab that projects substantially horizontally outward from a vertical outer wall of a building and uses a formwork or the like; B) a plurality of holes are formed at predetermined intervals along the tip of the reinforced concrete floor slab, and C) a precast handrail frame is formed at predetermined intervals in the longitudinal direction. After inserting the lower end of the support provided in the above holes into the holes, erection is performed by pouring mortar or the like into the holes, and D) the precast outer wall plate is attached to an appropriate position on the outer surface of the handrail frame via a mounting hardware. It is fixed.

According to the construction method of the present invention, after the handrail frame is erected along the tip of the reinforced concrete floor slab, the necessary length of the precast outer wall plate is attached to the handrail frame. While the ratio between the sliding frame only part and the outer wall plate part can be set arbitrarily,
The portion of the outer wall plate can also be set arbitrarily, and both can be alternately arranged in a well-balanced manner even for the span split dimensions of all types of buildings.

[0021] As described in claim 8, E) the outer wall plate and the second extruded plate may be integrated with the handrail frame in advance.

According to the eighth aspect of the present invention, since the outer wall plate and the handrail frame are attached in advance at a factory or the like, it is effective for labor saving and industrialization of precast products.

[0023]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the construction of a handrail wall structure for a balcony or the like according to the present invention.

FIG. 1 is a front view showing an embodiment of a handrail wall structure of a balcony, FIG. 2 is an enlarged sectional view taken along the line II-II of FIG.
Is an enlarged sectional view showing another embodiment of the handrail wall structure, and FIG. 4 is a plan view showing an embodiment of a wall portion of the handrail wall in the middle of construction.

As shown in FIG. 1, the handrail wall 1 of this embodiment includes a handrail frame 2 and is provided on both sides of the handrail frame 2. Tiles are respectively attached to the surface (outer surface) of the wall portion 1a of the handrail wall 1 and the surface of the rising wall of the floor slab Y of the balcony. A handrail pipe 4 is extended in series over the upper ends of a plurality of columns 3 partially projecting upward from the upper surface of the handrail frame 2. When viewed from the front, the wall portion 1a of the handrail wall 1 is flush with the handrail frame 2, but is actually located forward of the handrail frame 2 as shown in FIG.

As shown in FIG. 2, a reinforced concrete floor slab (also called a slab) Y is provided so as to extend horizontally outward from an outer wall (not shown) of a reinforced concrete building. Reinforcing bars (not shown) are arranged inside the slab Y, and are usually formed by assembling a formwork and casting concrete on site. Slab Y
Is formed slightly higher, and a rainwater receiving groove Z which is one step lower is formed just inside the front end Y1. Holes Y2 are formed along the distal end portion Y1 at regular intervals in the longitudinal direction. The distance between the holes Y2 is
Correspond to (coincide with) the intervals between the columns 3 arranged at predetermined intervals in the longitudinal direction of the column. Further, as shown in FIG. 1, rectangular tiles 11 are attached to the upright surface (vertical wall) at the tip end of the slab Y in a horizontally oriented and regularly arranged manner. The tile 11 and the sticking pattern are common to a tile (not shown) to be stuck to the outer wall of the building. Note that the orientation when attaching the tile 11 may be vertical.

The handrail frame 2 is a precast product manufactured in a factory or the like, and is made of stainless steel in this example, and a large number of pipes 2a are arranged at regular intervals in a vertical lattice on both sides of the support column 3. The lower end 3a of the support 3 is slightly thinner, and the handrail frame 2 is set up so that each hole Y2
After that, the mortar or grout is filled in the gap of the hole Y2 and solidified, whereby the handrail frame 2 stands upright along the tip of the slab Y. Post 3 or Post 3
The L-shaped mounting hardware 6 is fixed to the lower part of the pipe 2a by welding via the mounting plate 5. Further, a connecting metal 7 for a cover plate / mounting metal fitting 8, which will be described later, is fixed to the support 3 or the upper portion of the support 3 and the pipe 2a by welding.

In this embodiment, a mortar precast extruded plate 10 is used as an outer wall plate constituting the outer surface of the wall portion 1a of the handrail wall. As shown in FIG. 4, this extruded plate 10 has a large number of rectangular hollow portions 10a penetrating in the vertical direction, and has a predetermined length (for example, 600 mm to 1 mm).
200 mm). Having a concave portion 10b on one end surface,
The other end surface has a convex portion 10c, and by fitting the convex portion 10c into the concave portion 10b, it is possible to connect to each other in the longitudinal direction. When the other extruded plate 10 is not connected, the concave portion 10b and the convex portion 10c are cut. Further, in this example, since the outer wall is finished to a tile surface, a rectangular tile 11
Are regularly arranged and attached. The tile 11 and the sticking pattern are common to the tiles on the outer wall of the building.

On the upper surface of the horizontal part of the mounting hardware 6, a rectangular projection 6a which can be inserted into the hollow part 10a of the extruded plate 10 is projected upward.
A rectangular projection 8a that can be inserted into a is projected downward. Then, the extruded plate 10 is connected to the projection 6a of the mounting hardware 6.
The hollow portion 10a is vertically inserted by inserting the hollow portion 10a into the hole. Further, on the upper surface of the extruded plate 10, a cover plate / mounting metal fitting 8 is attached by inserting the projection 8a into the hollow portion 10a to cover the hollow portion 10a. In this state, the connecting piece 8b of the lid plate / mounting metal fitting 8 is bolted to the connecting metal fitting 7.
The extruded plate 10 is fixed to the column 3 and the like by being sandwiched between upper and lower mounting hardware 6, 8 by being connected by a nut 12. Further, a cushion material 13 such as hard rubber is attached to a gap between the vertical part of the mounting hardware 6 and the extruded plate 10, and the slab Y
Of the upper surface of the tile 11 and the tile 11 of the extruded plate 10
And a gap between the upper end of the tile 11 of the extruded plate 10 and the mounting hardware 8 are filled with a ceiling 14.

The present invention can be carried out as follows, instead of the above construction method. That is, as shown in FIG. 3, a handrail frame 2 in which the lower end side of the column 3 is extended downward (having an extended portion 17 b in FIG. 2) is used, and the disk 15 is attached to the lower end of the column 3. It uses a connecting rod 16 that extends upward from the center. When the extruded plate 10 is previously produced in a factory or the like, the extruded plate 10 is fixed to the column 3 via the mounting hardware 6, 8 and the like, and the upper end of the second extruded plate 17 is previously attached to the lower end of the extruded plate 10. Connect at the factory. Further, a mounting hardware 17a is attached to a vertical intermediate position of the second extruded plate 17, and the second extruded plate 17 is connected to the column 3 (extended portion 17b in FIG. 2) via the mounting hardware 17a. The handrail frame 2 is erected on the horizontal form plate 18 with the disc 15 down, and the extruded plate 10 and the second extruded plate 17 are arranged vertically. Each operation such as attaching the tiles 11 to the surfaces of the extruded plate 10 and the second extruded plate 17 and filling the gap between the connecting points between the extruded plate 10 and the second extruded plate 17 with the sealing 14. Can be done in advance at the factory.

In addition, instead of the lid plate / mounting fitting 8, a gate-shaped lid plate / fixing fitting 8 'is used. The mounting hardware 8 'is formed by bonding a hard rubber plate (cushion material) 13' to the inner surface of the vertical portion 8k on both sides, and does not have the projection 8a. Therefore, the upper end of the extruded plate 10 can be fitted and mounted on the mounting hardware 8 '. Note that reference numeral 1
4 'is a ceiling.

Further, the second extruded plate 17 is used as a part of the mold, and a reinforcing bar is arranged in the mold to cast concrete. While the concrete is solidified, the second extruded plate 1
7 is fixed integrally with the concrete, and forms a part of the slab Y. By doing so, the construction of the handrail frame 2 and the extruded plate 10 is completed at the same time as the concrete placing work for the slab Y. Other configurations are the same as those of the above-described embodiment, and thus the common members are shown using the same reference numerals, and description thereof will be omitted.

As mentioned above, the handrail wall structure has been described in connection with the two embodiments, and the construction method for each embodiment has been described. The handrail wall structure of the present invention can be implemented as follows.

(A) By using a precast slab, the handrail frame 2 and the extruded plate 10 are attached in advance at a factory, and the precast slab is driven into a slab Y to cast concrete. Thereby, the on-site work is omitted and the construction period is further shortened.

(B) A concrete wall material is sprayed on the surface of the extruded plate 10 and finished.

(C) A tempered glass plate is mounted on one surface of the handrail frame 2 instead of the extruded plate 10.

(D) As described above, the handrail frame 2, the extruded plate 10 (outer wall plate) and the second
The extruded plate 17 is integrated and the sealing 14
・ Transport to the site after filling of 14 ′.

[0038]

As is apparent from the above description,
The handrail wall structure such as a balcony and the construction method according to the present invention have the following excellent effects.

(1) According to the first aspect of the present invention, the weight of the entire vehicle body such as a balcony can be reduced, the on-site work can be greatly simplified, the work period can be shortened, and industrial components of the handrail wall can be industrialized. In addition to being easy to reduce costs, the appearance is as good as that of conventional concrete handrail walls. In addition, the handrail outer wall provided adjacent to the handrail frame can be easily formed simply by attaching the precast outer wall plate to the handrail frame erected on the reinforced concrete floor slab, so that the form On-site work such as using, arranging, and placing concrete can be omitted, and the handrail wall can be completed in a short time. Furthermore, as compared with the conventional concrete handrail wall structure, the handrail frame is continuously provided on the living room side (inside) of the outer wall plate, so that various hardware such as laundry clothes can be easily placed at any position. It can be attached and convenient.

(2) According to the second aspect of the present invention, by using an extruded plate made of mortar or the like, the structure is lightweight and easy to handle, and has a simple structure and a large structure as compared with a conventional concrete outer wall. It is light and can reduce the supporting strength of the reinforced concrete floor slab, and can reduce the overall weight of the vehicle such as a balcony.

(3) According to the third aspect of the present invention, since the vertical wall at the tip end of the floor slab is formed by the precast second extruded plate, the second extruded plate is used as a punching mold.
The on-site work can be simplified and the finishing work can be facilitated. In addition, the finish is good and the appearance of the handrail outer wall plate is the same as the vertical wall at the tip of the floor slab, and it is connected by sealing to give a sense of unity, so it is almost the same as the conventional cast-in-place concrete handrail outer wall Finish.

(4) According to the fourth and fifth aspects of the present invention,
The extruded plate can be easily fixed to the support of the handrail frame by sandwiching the extruded plate between the upper and lower mounting hardware, and at least the hole in the hollow portion on the upper surface of the extruded plate is closed by the lid plate / mounting hardware. The garbage and the like do not enter the hollow portion, and the appearance is good.

(5) According to the invention of claim 6, the outer wall plate and the second extruded plate can be integrated with the handrail frame at a factory or the like,
Cost reduction can be achieved by mass production,
It is easy to handle, eliminating the need to attach the outer wall panels on site and improving workability.

(6) In the invention of claim 7, after the handrail frame is erected along the tip of the concrete floor slab, the necessary length of the precast outer wall plate is attached to the handrail frame. The ratio between the sliding frame only part and the outer wall panel can be set arbitrarily, and the position of the outer wall panel can also be set arbitrarily, and both are alternately and well-balanced for the span split dimensions of all types of buildings. it can.

(7) According to the eighth aspect of the present invention, since the outer wall plate, the second extruded plate, and the handrail frame are previously mounted in a factory or the like, labor saving and industrialization of the precast product can be effectively achieved.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a balcony handrail wall structure according to the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged sectional view showing another embodiment of the handrail wall structure, and is a drawing corresponding to FIG. 2;

FIG. 4 is a plan view showing an example of a wall portion of a handrail wall in a state in the middle of construction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handrail wall 1a wall part 2 Handrail frame 3 Prop 4 Handrail pipe 6 Mounting hardware 7 Connecting metal fitting 8 ・ 8 ′ Cover plate / mounting hardware 10 Extruded plate 11 Tile 13.13 ′ Cushion material 14.14 ′ Sealing 17 Second extruded plate 18 Form plate Y Slab (reinforced concrete floor slab) Y1 tip Y2 hole Z Rainwater receiving groove

Claims (8)

[Claims] 1. A balcony provided with a precast handrail frame and a precast outer wall plate which are erected vertically at the tip of a reinforced concrete floor slab such as a balcony provided substantially horizontally outward from a vertical outer wall of a building. The handrail wall structure, by embedding and fixing the lower end of the support pillars arranged at intervals in the longitudinal direction of the handrail frame along the tip of the reinforced concrete floor slab, A handrail wall structure for a balcony or the like, characterized in that a handrail frame is erected perpendicularly to the tip of the reinforced concrete floor slab, and the outer wall plate is fixed at an appropriate position on the outer surface of the handrail frame. 2. The method according to claim 1, wherein said outer wall plate is an extruded plate.
Handrail wall structure such as the balcony described. 3. The vertical wall at the tip end of the reinforced concrete floor slab is constituted by a second extruded plate, and a common tile is attached to an outer surface of the second extruded plate and the outer surface of the extruded plate. The handrail wall structure for a balcony or the like according to claim 2, wherein a gap between the tile and the second extruded plate side tile is sealed. 4. A mounting member having a projection which can be inserted into a hollow portion penetrating in a vertical direction of the extruded plate, is provided at a lower portion of the support column so as to protrude outward, and the protrusion of the mounting member is connected to the extruded plate. The fitting is also inserted into the hollow part of the extruded plate, and is also provided with a projection that can be inserted into the hollow part of the extruded plate. The handrail wall structure for a balcony or the like according to claim 2 or 3, wherein the extruded plate is sandwiched between and attached to an upper portion of the support. 5. A mounting member having a projection which can be inserted into a hollow portion penetrating in a vertical direction of the extruded plate, is provided at a lower portion of the support column so as to protrude outward, and the protrusion of the mounting member is connected to the extruded plate. A fitting that is fitted into the hollow portion of the extruded plate and has a gate-shaped fitting with a cushioning material on the inner surface that can be fitted to the upper end of the extruded plate, and the recessed portion is provided at the upper end of the extruded plate. The handrail wall structure of a balcony or the like according to claim 2 or 3, wherein the extruded plate is sandwiched between the fittings downward, and the extruded plate is sandwiched between the fittings and attached to an upper portion of the support. 6. The handrail frame according to claim 1, wherein the outer wall plate and the second extruded plate are integrated with the handrail frame in advance.
5. A handrail wall structure such as a balcony according to any one of 5. 7. A reinforced concrete floor slab is formed by projecting from a vertical outer wall of a building outwardly and horizontally by using a formwork or the like, and a predetermined slab is formed along the tip of the reinforced concrete floor slab. A plurality of holes are drilled at intervals, and the precast handrail frame is embedded and fixed by pouring mortar or the like after inserting the lower ends of the columns provided at predetermined intervals in the longitudinal direction into the holes. A method for constructing a handrail wall for a balcony or the like, characterized in that a precast outer wall plate is fixed at an appropriate position on an outer surface of the handrail frame via a mounting hardware. 8. The method according to claim 7, wherein the outer wall plate and the second extruded plate are integrated with the handrail frame in advance.