JPH07217199A - Trap-constructing method and form structure thereof - Google Patents

Abstract

PURPOSE:To facilitate the execution of work, such as balcony, exterior corridor and a projected part of a building structure at a lower cost, and enable the above work to be executed with higher accuracy. CONSTITUTION:A form A, which is designed to form a rising part 4 is arranged to comprises a plurality of form units B1, B2, B3, C and D along the continuing direction of the rising part 4. An external type form 26 and an internal type form 27 and a connection member 32 for each of the form units B1, B2, B3, C and D are connected with bolt members 32 and nut members 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a projecting portion suitable for forming a projecting portion such as a balcony or an outer corridor in a building structure such as an apartment, and a formwork structure thereof. is there.

[0002]

2. Description of the Related Art Generally, in a building structure such as a condominium, a projecting portion such as a balcony or an outer corridor is provided so as to project outward from its side surface. As shown in FIG. 4, such a bounce portion 1 is made of concrete and has a floor 3 extending substantially horizontally from a building body 2 of a building structure, and a rising portion that rises upward from the tip of the floor 3. It is composed of a portion 4 and a drainage groove 5 formed in the floor portion 3 inside the rising portion 4 so as to extend in the continuous direction of the pop-out portion 1.

[0003] Conventionally, when constructing the pop-out portion 1, a mold frame as shown below is assembled and concrete is placed here. That is, as shown in FIG. 5, the mold 6 includes a lower mold 7 for forming the bottom surface of the floor 3 of the pop-out portion 1 and an outer peripheral mold for forming the outer peripheral surface of the rising portion 4. 8, an inner peripheral form 9 for forming the inner peripheral surface of the rising portion 4, and a groove form 10 for forming the drain groove 5. In addition, plywood and the like are commonly used for the lower mold 7, the outer mold 8, the inner mold 9, and the groove mold 10. The lower mold 7 is
One end side is fixed to the body (not shown), and the tip side is
It is supported by a supporter 11 which is erected upright on the projecting portion (not shown) on the lower floor already constructed. This lower formwork 7
The outer peripheral mold 8 and the inner peripheral mold 9 arranged at predetermined positions above are
The upper end of each is connected by a stile 12. Also,
A separator metal piece 13 is disposed between the outer peripheral mold 8 and the inner peripheral mold 9 and is compacted with a foam tie (registered trademark) metal mold 14 from the outside thereof, whereby the outer peripheral mold 8 and The predetermined distance from the inner peripheral form 9, that is, the thickness of the rising portion 4 is maintained. Also,
Since the groove formwork 10 forms the drain groove 5 having a predetermined slope,
It is fixed to the lower mold 7 by a separator metal piece 15 to prevent the concrete from rising when it is placed. Then, when constructing the pop-out portion 1, after assembling the mold 6 having such a configuration,
Concrete X is placed and cured in the mold 6, and then the mold 6 is dismantled.

[0004]

However, the above-described conventional method of constructing the pop-out portion 1 and the structure of the form 6 thereof have the following problems. First of all, in the construction site, a mold carpenter cuts out each member constituting the mold frame 6 from plywood, square wood, etc. in accordance with the shape of the projecting portion 1 to be formed. The current situation is to assemble it. As described above, since the work is a manual work for site adjustment, not only is it very time-consuming, but also a skilled form carpenter is required only for assembling the form 6, resulting in an increase in labor cost. . Moreover, in particular, regarding the inner mold 9 and the groove mold 10, the inner mold 9 is the separator metal piece 13 and the outer mold 8 is formed.
The groove formwork 10 is fixed to the lower formwork 7 with the separator metal fitting 15, which is, so to speak, a "floating formwork" floating in the air. For this reason, a considerable skill is required to assemble the mold 6 with high accuracy, and it is difficult to accurately construct the pop-out portion 1.

Further, the groove formwork 1 using the separator metal piece 15
If the fixation of 0 is insufficient, the groove form 10 may rise when the concrete X is placed. Then, the slope of the drainage groove 5 cannot be made as designed, and thus the original function of the drainage groove 5 cannot be achieved, so that rework work is required, which not only requires a lot of time and work cost. There is a problem of causing a rise.

Further, when the formwork 6 is dismantled, the pier 12,
After removing the form tie hardware 14 and the like, the outer peripheral form 8, the inner peripheral form 9, the groove form 10, and the lower form 7 must be dismantled, and there is a problem in that this disassembling work also takes time. is there. Moreover, when the formwork 6 is dismantled, the corners and the like of the concrete of the popped-out portion 1 formed may be chipped, and even in such a case, reworking work is required. Moreover, plywood is generally used for the formwork 6, but it is well known that reduction of the use of tropical timber and reduction of waste generation are required in order to protect the global environment. is there.

The present invention has been made in consideration of the above points, and facilitates the construction work of the projecting portion of a building structure such as a balcony, an outer corridor, and the like, and reduces the cost. An object of the present invention is to provide a method of constructing a projecting portion that can be formed with high accuracy and a formwork structure thereof.

[0008]

The invention according to claim 1 is
When constructing a repelling portion including a floor portion that revolves outward from the side surface of the building structure in a substantially horizontal direction and a rising portion that rises upward from an end portion of the floor portion, in advance,
At least the rising portion of the bounce portion to be constructed has substantially the same cross-sectional shape in the continuous direction, and a formwork for forming the rising portion of the bounce portion is formed in the continuous direction of the rising portion. Divide into multiple formwork units along the
An outer peripheral form for forming the outer peripheral surface of the rising portion, an inner peripheral form for forming the inner peripheral surface, and a connecting member for connecting the outer peripheral form and the inner peripheral form. ,
When forming the pop-out portion, the lower formwork for forming the bottom surface of the floor portion is installed at a predetermined position,
After forming the molds by assembling the mold units by combining the outer molds, the inner molds, and the connecting members of the mold units on the lower molds with a coupling means, Place concrete here and then dismantle the formwork.
It is characterized by being removed.

According to a second aspect of the present invention, in the method for constructing the projecting portion according to the first aspect, when the formwork for forming the rising part is divided into a plurality of formwork units, the rising part is formed. It is characterized in that the linear portion and the bent portion are divided into separate mold frame units.

According to a third aspect of the present invention, there is provided a repelling portion having a floor portion that revolves outward from a side surface of the building structure in a substantially horizontal direction, and a rising portion that rises upward from a tip portion of the floor portion. Formwork for forming, the lower formwork for forming the bottom surface of the floor of the pop-out portion is provided on the side portion of the skeleton of the building structure so as to be located in a substantially horizontal plane, On the upper surface of the lower mold, an outer peripheral mold having a length determined in the continuous direction of the rising portion for forming an outer peripheral surface of the rising portion and an inner peripheral surface of the rising portion are provided. In order to form, a mold unit, which is attached to the upper end of the outer peripheral mold via a connecting member and is composed of the outer peripheral mold and an inner peripheral mold having the same length, has a continuous direction of rising portions to be formed. It is configured to be installed in series along with,
In addition, a bolt hole is formed at a predetermined position of the outer mold, the connecting member, and the inner mold of each mold unit to form the outer mold and the connecting member, and the connecting member and the inner circumference. The mold frame is characterized in that it is detachably coupled by a bolt member and a nut member that are inserted and tightened in the respective bolt holes.

According to a fourth aspect of the present invention, in the formwork structure of the projecting portion according to the third aspect, the outer formwork, the inner formwork, and the connecting member of the formwork unit are made of metal or plastic, respectively. It is characterized by being said.

The invention according to claim 5 is the invention according to claim 3 or 4.
In the formwork structure of the bounce portion according to, a groove formwork for forming a drainage groove extending along the inside of the rising portion is provided at the lower end portion of the inner formwork of each formwork unit. One of the bolt holes formed along the inner peripheral formwork and the connecting member for connecting the inner formwork and the connecting member is arranged vertically. It is characterized by being a long hole having a long diameter.

[0013]

According to the invention described in claim 1, since the formwork for forming the rising part of the bounce part is composed of a plurality of formwork units divided along the direction in which the rising part is continuous, Assembling and disassembling of the formwork for forming the parts becomes easy. Moreover, since the rising part of the bounce part has a substantially same cross-sectional shape in the continuous direction,
The work of assembling the formwork becomes a simple repetitive work, which is facilitated. Further, the outer peripheral mold, the inner peripheral mold, and the connecting member of each mold unit are connected to each other by a connecting means such as a bolt / nut member. This allows
It is not necessary to assemble the mold using nails or the like as in the conventional case, and the assembling and disassembling work can be easily performed.

According to a second aspect of the present invention, in the method for constructing the projecting part according to the first aspect, when the formwork for forming the rising part is divided into a plurality of formwork units in advance, the rising part is formed. The straight line portion and the bent portion are divided into separate formwork units. Therefore, by appropriately selecting and combining the mold unit of the linear portion and the mold unit of the bent portion, it is possible to form the pop-out portion having the rising portions of various planar shapes.

According to the third aspect of the present invention, bolt holes are formed at predetermined positions of the outer peripheral mold, the connecting member, and the inner peripheral mold of each form unit, and the outer peripheral mold, the connecting member, and the connecting member are formed. The front inner peripheral formwork is configured to be detachably connected by bolt members and nut members inserted and tightened in the bolt holes. Since each member of the form unit is bolted in this way, it is very easy to assemble and disassemble. Moreover, at the time of assembling the mold, it is possible to assemble with high accuracy by penetrating the bolt members into the bolt holes of both members to be assembled and tightening them with the nut members.

According to the fourth aspect of the invention, the outer peripheral mold, the inner peripheral mold, and the connecting member of the mold unit are made of metal or plastic. As a result, it has a higher strength than that of a conventional plywood product, and is less likely to break during handling. Moreover, it has high durability and can be diverted many times.

According to the fifth aspect of the invention, the groove formwork for forming the drainage groove is provided along the lower end portion of the inner peripheral formwork. As a result, this formwork structure can be applied even when forming the bounce portion having the drainage groove. In addition, one of the bolt holes formed in the inner peripheral form and the connecting member is an elongated hole having a long diameter in the vertical direction. As a result, it is possible to move the inner formwork vertically with respect to the connecting member, and it is possible to adjust the position of the groove formwork according to the designed inclination, that is, the slope of the drainage groove to be formed. Becomes

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. Here, for example, an example in the case of constructing a balcony provided with a drain will be described. Figure 1
Fig. 1 shows an example of a balcony to be formed by applying the method for constructing a projecting portion and the formwork structure thereof according to the present invention. In these figures, FIG.
The same parts as those of the above are denoted by the same reference numerals. As shown in FIGS. 1 (a) and 1 (b), a balcony (bounced portion) horizontally bounced from the building body 2 of the building structure.
20 is formed to extend along the side surface of the body 2. In addition, as shown in FIG.
A concave portion 21 is formed in the intermediate portion of the. As shown in FIG. 4, the balcony 20 is made of concrete, and extends upward along the floor 3 extending substantially horizontally from the body 2 of the building structure and the tip and side edges of the floor 3. It is composed of a rising portion 4 that rises up and a drain groove 5 that is formed in the floor portion 3 along the inside of the rising portion 4. Here, the rising portion 4 is shown in FIG.
End 22 of the balcony 20 shown in Figure 1 and Figure 1 (b).
Also in the concave portion 21 shown in (1), the concave portion 21 is formed along the side end portion and the front end portion of the floor portion 3. The rising portions 4 have the same cross-sectional shape in the continuous direction, that is, in the direction extending along the side surface of the body 2.

The formwork structure for forming the balcony 20 having such a structure will be described below. As shown in FIG. 1, the form A forming the balcony 20 is divided into a plurality of units along the continuous direction of the rising portions 4 to be formed. That is, the straight part 4a, the corner part (bent part) 4b, and the crank part (bent part) 4c of the rising part 4 of the balcony 20 are constructed by separate formwork units B, C, and D, respectively. . Of these, the linear form unit B for constructing the straight portion 4a may be, for example, a long standard form unit B.
1, a mold unit B2 having a length about half of this length, and a mold unit B3 for length adjustment having a length shorter than these are used.

As shown in FIG. 2, the frame 2 has piers 23 extending substantially horizontally along the side surface thereof at regular intervals.
The base end of is fixed. The tip of this pier 23
It is supported on a balcony (not shown) on the floor directly below, which has already been constructed, or by a supporter 11 standing on the ground.
Then, for example, a lower formwork 2 made of plywood for forming the bottom surface of the floor portion 3 of the balcony 20 is formed on the piers 23.
5 is placed. At a predetermined position on the lower mold 25, the mold units B1, B2, B
3, C, D are installed, and the form A is constructed by this.

Here, the mold units B1, B2, B3, C, D for forming the rising portion 4 are different only in length or shape when viewed in a plan view, and otherwise have the same structure. Therefore, here, the structure of the standard form unit B1 for forming, for example, the linear portion 4a will be described. The mold unit B1 includes an outer peripheral mold 26 for forming the outer peripheral surface of the rising portion 4, an inner peripheral mold 27 for forming the inner peripheral surface of the rising portion 4 and the drain groove 5, and these outer peripheral molds. 26 and a connecting member 28 for connecting the inner peripheral form 27.

The outer peripheral form 26 is made of metal or plastic such as iron, aluminum, or alloy, and has a constant length in the continuous direction of the rising portion 4. A fixing portion 26b having a nail hole for fixing the outer peripheral form 26 to the lower form 25 is formed at the lower end of the flat form surface 26a of the outer form 26.
On the other hand, a flange portion 26c formed to match the inclination angle of the upper surface of the rising portion 4 is formed at the upper end of the mold surface 26a. At a predetermined position of this flange portion 26c,
A plurality of bolt holes (not shown) for connecting this to the connecting member 28 are formed at predetermined intervals. Further, ribs 29 for reinforcement are formed on the back surface side of the mold surface 26a. The inner peripheral form 27 is made of metal or plastic like the outer form, and the dimension of the rising portion 4 in the continuous direction is the same as that of the outer form 26. In this inner peripheral form 27, an inner peripheral form surface 27a for forming the inner peripheral surface of the rising portion 4 and a groove form surface (groove form) 27b for forming the drainage groove 5 are integrally formed. It has a formed structure. A plurality of bolt holes (not shown) for connecting the inner peripheral form 27 to the connecting member 28 are formed at predetermined intervals on the upper part of the inner peripheral form surface 27a. Reinforcing ribs 29 are also formed on the back surfaces of the inner peripheral frame surface 27a and the groove frame surface 27b. The connecting member 28 is made of a metal or plastic angle member that is L-shaped in cross section and extends in one direction. A bolt hole (not shown) is formed at one end of the connecting member 28 in the bolt hole of the outer peripheral form 26. It is formed at a position corresponding to (not shown). At the other end of the connecting member 28, a mounting surface 28a that faces the inner peripheral mold surface 27a of the inner peripheral mold 27 is formed.
The bolt hole 30 is a bolt hole of the inner mold 27 (not shown)
Is formed at a position corresponding to.

As shown in FIG. 3, this bolt hole 30 is
It is a long hole having a long diameter in the up-down direction, so that when the connecting member 28 and the inner peripheral form 27 are joined, the inner peripheral form 27 is fixed with respect to the connecting member 28 within a certain range. The structure is vertically adjustable.

As shown in FIG. 2, the outer peripheral form 26 is fixed to the upper surface of the lower form 25 by nails 31. At the upper part of the outer peripheral form 26, a connecting member 28
Are attached at predetermined intervals along the continuous direction of the rising portions 4. The peripheral form 26 and the connecting member 28 are rigidly connected to each other by inserting a bolt member (coupling member) 32 into a bolt hole (not shown) formed in each and tightening them with a nut member (coupling member) 33. Has been done. The connecting member 28 includes an inner mold 27
However, the bolt member 32 is inserted into the bolt hole (not shown) and the bolt hole 30 of the connecting member 28, and the nut member 3
It is rigidly connected by being tightened at 3. Also,
Between the mounting portion 34 at the lower end of the inner mold 27 and the upper surface of the lower mold 25, an embedded bolt member 35 for fixing the foot is mounted, whereby the groove mold surface 27b is firmly fixed. ing. As described above, the outer peripheral mold 26 and the inner peripheral mold 27 of the mold unit B1 are installed on the lower mold 25 at a predetermined interval, that is, separated by the thickness dimension of the rising portion 4. There is.

As described above, the form unit B
2, B3, C, and D are different only in the lengths or shapes of the outer peripheral mold 26 and the inner mold 27 when seen in a plan view, and the structure in the cross-sectional direction is the same as that of the mold unit B1 described above. The description is omitted here.

Next, a method for constructing the balcony 20 using the form A having the above-mentioned structure will be described. In advance, as shown in FIG. 4, the rising portion 4 of the balcony 20 is designed so that its cross-sectional shape is the same in the continuous direction except for the slope of the drain groove 5. Then, as shown in FIG. 1, the formwork unit B of the required type and quantity is selected according to the balcony 20 to be constructed.
1, B2, B3, C, D are prepared.

When constructing the balcony 20, first, as shown in FIGS. 2 and 3, the lower formwork 25 is installed. At this time, as shown in FIG. 2, the lower mold 25
At a predetermined position of the joint frame 36 for forming the drainage joint, and the face plate 3 for forming the corner of the repelling portion 20.
Attach 7 and.

The form units B1, B2, B3, C, D are assembled at predetermined positions on the upper surface of the lower form 25 as follows. First, the outer peripheral form 26 is fixed with the nails 31, and the connecting member 28 and the inner peripheral form 27 are connected to the bolts 32 and the nut members 33. At this time, the inner peripheral form 27 is adjusted in position in the vertical direction within the range of the elongated bolt hole 30 in accordance with the design gradient of the drain groove 5 to be formed, and then fixed. Then, the embedded bolt member 35 is fixed to the lower mold 25 through the mounting portion 34 of the inner peripheral mold 27, and the groove mold surface 27b is firmly fixed. Further, the outer peripheral form 26 and the connecting member 28,
Face boards 38 for forming the upper corners of the rising portions 4 are attached to the connecting portions between the connecting member 28 and the inner peripheral form 27, respectively. In this way, the formwork units B1, B
2, B3, C, and D are respectively assembled at predetermined positions on the upper surface of the lower mold 25, and adjacent units are connected to each other, whereby the assembly of the mold A is completed.

Then, in the assembled frame A,
Place concrete X.

Thereafter, the cast concrete X is cured, and after the predetermined strength is developed, the form A is disassembled. When disassembling the form A, the work may be performed in the reverse order of the above-described process of assembling the form A. At this time, the outer mold 26, the connecting member 27, and the inner mold 28 of each mold unit B1, B2, B3, C, D are connected by the bolt member 32 and the nut member 33, so that the disassembling work Can be done easily. The construction of the balcony 20 to be formed is completed as described above.

After this, each used mold unit B1,
B2, B3, C, D as they are, balcony 20 on the upper floor
Diverted to the construction of.

As described above, in the method of constructing the balcony 20, the formwork A for forming the rising portions 4 is formed by forming a plurality of formwork units B1, B2, B3, C, along the direction in which the rising portions 4 are continuous. It was divided into D. Since the form A is unitized in this way, the form A can be formed only by assembling these at a predetermined position.
There is no need to assemble the form A on site as in the conventional case, and the work of assembling and disassembling the form A is made much easier than in the past. Moreover, since the cross-sectional shapes of the rising portions 4 are substantially the same in the continuous direction, the work of assembling the form A is a simple repetitive work, and the work can be facilitated from this point as well. Furthermore, the outer peripheral mold 26 and the inner peripheral mold 2 of each mold unit B1, B2, B3, C, D
7, the connecting member 28 is a bolt member 32, a nut member 33.
Since they are connected with each other, the work can be facilitated. As a result, the labor required for the work of assembling and disassembling the form A can be reduced, and the skilled form carpenter, which has been required in the past, is not required. Therefore, the labor cost can be greatly reduced. Can be planned
It is possible to reduce the construction cost of the balcony 20. Further, since the form A forms the form units B1, B2, B3 for forming the linear part 4a of the rising part 4, the form unit C for forming the corner part 4b, and the crank part 4c. It is configured to be divided into the form unit D of FIG. As a result, it is possible to simplify the work of the portions other than the straight portion of the balcony 20, which are very troublesome in the conventional construction method, such as the corner portion 4b and the crank portion 4c. Moreover,
Standardize the mold units B1, B2, B3, C, D,
By appropriately selecting from these and combining them, it is possible to form the balcony 20 having rising portions of various plane shapes, straight shapes as well as curved shapes, and the balconies 20 on other floors. Besides,
If the rising portion 4 having the same cross-sectional shape is provided, it can be diverted even during construction of another building structure.

In the structure of the mold A described above, the outer peripheral mold 26, the inner peripheral mold 27 and the connecting member 28 of each of the mold units B1, B2, B3, C and D are bolts formed at predetermined positions. It has a structure in which a bolt member 32 and a nut member 33 are connected through a hole (not shown). Accordingly, when the form A is assembled, it is possible to assemble the form A with high precision simply by inserting the bolt member 32 into the bolt holes (not shown) of both members to be assembled and tightening the nut member 33. Becomes Moreover, the conventional form 6 (see FIG. 5)
It is not necessary to use the separator metal piece 13 and the foam tie metal piece 14 as described above. As a result, it is possible to easily form the balcony 20 with high accuracy, to significantly reduce the rework work such as chipping and mortar coating, and to reduce the construction cost. The outer peripheral mold 26, the inner peripheral mold 27, and the connecting member 28 are made of metal or plastic, respectively. As a result, these have a higher strength than those made of conventional plywood and are less likely to break during handling. Moreover, since it has high durability, it can be diverted many times. As a result, it is possible to reduce the cost of formwork in the long term. Further, it is possible to obtain effects such as reduction of use of tropical timber and reduction of waste. Further, a groove form surface 27b for forming the drainage groove 5 is integrally formed at the lower end portion of the inner peripheral form 27, and a bolt hole 30 for attaching the inner peripheral form 27 to the connecting member 28 is a long hole. It has been configured as. As a result, the groove form surface 27b can be easily positioned at the gradient as designed, and the gradient can be formed with high accuracy when the drain groove 5 is formed. Therefore,
The rework work for correcting the gradient, which has been conventionally performed, is unnecessary, and the construction cost can be reduced also from this point.

In the above embodiment, the balcony 2
The shape of 0 is not limited to the above-mentioned one in both the plane shape and the cross-sectional shape.
Even if the shape is other shape, or even if the drain groove 5 is not provided, the same configuration as described above can be applied. In addition, the form A is made up of a plurality of form units B1 and B.
Although the structure is divided into 2, B3, C, and D, the dividing method is not limited to the above example. Further, for example, when forming a rising portion having a curved shape in plan view, the same configuration may be applied. Further, as for the lower mold 25, if the construction is easy, it is possible to use, for example, one having a size of 3 × 6 plate as in the conventional case, and the mold units B1, B2, B3 of the above-mentioned embodiment. , C, and D, the lower mold 25 may be unitized. In addition, as the repelling part to be formed,
Although the balcony 20 is used as an example, of course, when forming an outer corridor or the like, a completely similar configuration is applied,
It goes without saying that the same effect as described above can be obtained.

[0035]

As described above, according to the method of constructing the pop-out portion according to the first aspect, the rising portions of the pop-out portions have substantially the same cross-sectional shape in the continuous direction, and the rising portions are The formwork to be formed is divided into a plurality of formwork units along the direction in which the rising portions are continuous, and when forming the projecting part, these formwork units are assembled to form the formwork. And Further, the outer peripheral mold, the inner peripheral mold, and the connecting member of each mold unit are rigidly connected by a connecting means such as a bolt / nut member. As a result, unlike the conventional case, it is not necessary to assemble the formwork on site, and the work of assembling and disassembling the formwork can be easily performed. As a result, when assembling and disassembling the formwork, the labor required for the work can be reduced, and the skilled formwork carpenter, which was required in the past, is not required, so the labor cost can be significantly reduced. Therefore, it is possible to reduce the construction cost of the projecting portion.

According to the method for constructing the projecting portion of the second aspect, when the formwork is divided into a plurality of formwork units, the straight part of the rising part and the bent part are divided into separate formwork units. It was configured. As a result, the work can be facilitated even for a bent portion, which was very troublesome in the conventional construction method. Moreover, by standardizing the formwork unit and appropriately selecting and combining the formwork units, it is possible to form various plane-shaped protrusions, and only the protrusions on other floors of the same building structure can be formed. Not only that, but it can be diverted even during the construction of other building structures.

According to the formwork structure of the projecting portion according to claim 3, the outer formwork, the connecting member, and the inner formwork of each formwork unit are formed by bolt members and nut members which are inserted and tightened in the bolt holes. It is configured to be combined. Since each member of the form unit is bolted in this way, it is very easy to assemble and disassemble. Moreover, when assembling the formwork,
By simply passing the bolt members through the bolt holes of both members to be assembled and tightening them with the nut members, the mold can be assembled with high accuracy. As a result, the rising part of the bounce part can be easily formed with high accuracy without using metal parts such as separators and foam ties, and rework work such as chipping and mortar coating can be significantly reduced, and construction costs can be reduced. It can be reduced.

According to the formwork structure of the projecting portion according to the fourth aspect, the outer peripheral formwork, the inner peripheral formwork, and the connecting members of the formwork unit are made of metal or plastic. As a result, these have a higher strength than those made of conventional plywood and are less likely to break during handling. Moreover,
Since it has high durability, it can be diverted many times. As a result, it is possible to reduce the cost of formwork in the long term. Further, it is possible to obtain effects such as reduction of use of tropical timber and reduction of waste.

According to the formwork structure of the projecting portion according to the fifth aspect, the groove formwork is provided along the lower end of the inner peripheral formwork. As a result, this formwork structure can be applied even when forming the repellent portion having the drainage groove, and the above-described respective effects can be achieved. Moreover, since one of the bolt holes formed in the inner peripheral form and the connecting member is a long hole having a long diameter in the vertical direction, the inner peripheral form can be vertically adjusted in position, and the groove mold It is possible to fix the frame easily and reliably according to the inclination as designed, that is, the inclination of the drain groove to be formed. Thereby, the gradient of the drainage groove can be formed with high accuracy, the rework work that has been performed conventionally can be eliminated, and the construction cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a bouncing part formed by applying a method for constructing a bouncing part and a mold structure thereof according to the present invention.

FIG. 2 is a side sectional view showing an example of the formwork structure.

FIG. 3 is a front view of the same.

FIG. 4 is a side sectional view showing the pop-out portion.

FIG. 5 is a side sectional view showing an example of a conventional formwork structure.

[Explanation of symbols]

 2 frame 3 floor 4 rising part 4a straight part 4b corner part (bending part) 4c crank part (bending part) 5 drainage groove 20 balcony (bounce part) 25 lower formwork 26 outer formwork 27 inner formwork 27b Groove form surface (groove form) 28 Connection member 30 Bolt hole 31 Bolt member (joining means) 32 Nut member (joining means) A formwork B1, B2, B3, C, D formwork unit X concrete

Claims (5)

[Claims] 1. When constructing a pop-out portion including a floor portion that springs outward from a side surface of a building structure in a substantially horizontal direction and a rising portion that rises upward from an end portion of the floor portion, , At least the rising portion of the protruding portion to be constructed has substantially the same cross-sectional shape in the continuous direction, and a formwork for forming the rising portion of the protruding portion is continuous with the rising portion. Divided into a plurality of mold units along the direction, each mold unit, an outer peripheral mold for forming the outer peripheral surface of the rising portion, an inner peripheral mold for forming the inner peripheral surface, The outer formwork and the inner formwork are connected to each other, and a lower formwork for forming the bottom surface of the floor is installed at a predetermined position when forming the projecting portion. do it,
After forming the molds by assembling the mold units by combining the outer molds, the inner molds, and the connecting members of the mold units on the lower molds with a coupling means, A method of constructing a projecting portion, which comprises placing concrete here, and then dismantling and removing the formwork. 2. The method for constructing a projecting portion according to claim 1, wherein when the formwork for forming the rising portion is divided into a plurality of formwork units, a straight portion and a bent portion of the rising portion are formed. The method for constructing a repelling portion is characterized in that the structure is divided into separate formwork units. 3. A mold for forming a repelling portion having a floor portion that repels outward in a substantially horizontal direction from a side surface of a building structure and a rising portion that rises upward from a tip portion of the floor portion. A lower formwork for forming a bottom surface of the floor of the projecting portion is provided on a side part of the skeleton of the building structure so as to be located in a substantially horizontal plane, and an upper surface of the lower formwork. In order to form the outer peripheral formwork for forming the outer peripheral surface of the rising portion and the inner peripheral surface of the rising portion having a length defined in the continuous direction of the rising portion, A plurality of formwork units, which are attached to the upper end of the formwork via a connecting member, and which are composed of the outer peripheral formwork and the inner peripheral formwork of equal length, are arranged in series along the continuous direction of the rising portions to be formed. And the outer peripheral formwork of each formwork unit, A bolt hole is formed at a predetermined position of the connecting member and the inner peripheral form, and the outer peripheral form and the connecting member, and the connecting member and the inner form are inserted and tightened in the respective bolt holes. A formwork structure for the pop-out portion, characterized in that it is detachably connected by means of a bolt member and a nut member. 4. The formwork structure of the projecting portion according to claim 3, wherein the outer formwork, the inner formwork, and the connecting member of the formwork unit are made of metal or plastic, respectively. The characteristic formwork structure of the bounce part. 5. The formwork structure of the projecting portion according to claim 3 or 4, wherein the groove formwork for forming a drainage groove extending along the inner side of the rising portion is each of the formwork units. Of the bolt holes formed along the lower end of the inner peripheral mold and formed in the inner peripheral mold and the connecting member for connecting the inner peripheral mold and the connecting member. home,
One of the structures is a formwork structure of a popping-out portion, characterized in that one of them is an elongated hole having a long diameter in the vertical direction.