JPH1171898A - Continuous footing form of building and method for constructing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical continuous footing form of a building such that forms can be assembled easily by forming a base and a continuous footing simultaneously for a shorter construction period and to provide a method for constructing the same. SOLUTION: A continuous footing form of a building includes a pair of plate-shaped rising part forms 12 shaping the side faces of the continuous footing form, a pair of base forms 14 which shape both the side faces of a wide base provided below the continuous footing form of the building and a portion of each upper surface adjacent to the side face of the base, and a pedestal 1 by which each rising part form 12 and each base form 14 are integrally connected and held together. Connecting members 50, 56, 70 by which each rising part form 12 and each base form 14 are integrally connected together and fixed on the ground are provided, and forms for the continuous footing of the building are integrally formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a formwork for forming a fabric foundation of a building with concrete and a method of constructing the fabric foundation.

[0002]

2. Description of the Related Art The base of a wooden house is made of concrete, and a cloth base is provided on a wide base. Conventionally, a cloth foundation and a base of a wooden house have been formed by casting concrete into a wooden formwork. The construction method of this base and cloth foundation is to first cut down the ground, lay gravel and sand there, and compact it. Then, the base formwork is vertically assembled on the surface of sand or gravel, and a reinforcing bar is installed inside the base formwork. Then, concrete is poured into the inside of the base form and cured. Next, the mold for the base is released from the mold to form a base. Then, the ink is printed on the base, the rising portion formwork is vertically assembled, and concrete is poured and cured inside the rising portion formwork. Then, the mold for the rising portion is removed from the mold, the top is leveled to form a fabric base, and the ground is backfilled and leveled.

[0003] There has also been a steel formwork in which a fabric base and a base of a wooden house are integrated to form the fabric base and the base at one time. As shown in FIG. 24, the steel formwork 1 has a side plate 2 for molding each side surface of a base 7 and a cloth base 6, and a reinforcing member 3 is provided outside the side plate 2. The method of constructing the fabric foundation using the steel formwork 1 is as follows. First, a pair of steel formworks 1 is fixed to the ground, and concrete is poured into the inside of the steel formwork 1 and cured. Then, the steel mold 1 is removed from the mold, the top is leveled to form the base 7 and the cloth foundation 6, and then the ground is backfilled and leveled. A tapered portion 5 is formed between the base 7 and the cloth foundation 6.

[0004]

In the former case of the above-mentioned prior art, the construction period is long because the base and the fabric base are formed in order, and the work site is poor at the site. Had to be suspended, and the construction period was often delayed due to the weather.

[0005] In the latter case of the above-mentioned prior art, the work period is shortened because the base and the fabric base are formed at once, and the weather is not affected by the weather. However, since the steel form 1 is heavy and requires a wrecker for installation, the cost is high, and the steel form 1 itself is extremely expensive.
Further, as shown in FIG. 25, the piping sleeve 4 is formed on the cloth foundation 6 so as to penetrate indoors and outdoors.
Is provided at a high position to be formed above the tapered portion 5. However, since the pipe is buried at a predetermined depth in the ground,
Since the piping sleeve 4 is located at a predetermined depth, the root cutting must be deepened, and the working efficiency is not good.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and easily forms a formwork to simultaneously form a base and a cloth foundation. An object of the present invention is to provide a formwork and a construction method thereof.

[0007]

SUMMARY OF THE INVENTION The present invention provides a pair of plate-shaped rising section molds for shaping the side surfaces of a fabric foundation formwork of a building, and is provided below the cloth foundation formwork of the building. A pair of base molds that form the side of the wide base and a part of the upper surface adjacent to the side of the base, and integrally connect and hold the above-described rising section molds and the above-described base molds. This is a cloth foundation formwork of a building formed by the above-described rising portion formwork and the above-described base formwork.

[0008] The pedestal is an elongated metal plate, and is bent in a convex shape, and both ends of the pedestal are flange portions attached to the ground. A fixing member to which a lower end portion of each of the rising portion molds is fixed is fixed to a center portion of the pedestal by a screw or the like. Further, the fixing member may be welded to the pedestal. The fixing member is provided with two pairs of engagement projections that hold the lower end of each of the riser sections. The engaging projections are provided so as to protrude in parallel with each other in a direction opposite to the ground, and between the two pairs of engaging projections, the lower ends of the rising section molds are held in contact with each other. I have. Further, the base formwork is fixed to the ground by a fixing member such as a pile.

In the construction method of the fabric foundation formwork of the building according to the present invention, first, the ground is cut down, and gravel or sand is laid there and compacted. Next, a reinforcing bar is assembled there, and then the pedestal to which the fixing member is attached in advance is placed on the surface of sand or gravel. The rising portion formwork is fixed to the two pairs of engagement protrusions of the fixing member, and the side edge of the base formwork is attached to a side of a lower end portion of the rising portion formwork. Attach through. A plurality of the base formwork is provided continuously, a joint of the base formwork is fixed with a connecting member, and the other side edge of the base formwork is piled on a surface of sand or gravel. Fix it.

Then, concrete is poured into the inside of the base form and the rising section form at a time and cured. At this time, since the base form is fixed to the ground with a pile or the like, the weight of the concrete does not cause the base form to rise when the concrete is poured. Then, the molds for the rising portions and the molds for the bases are removed from the mold, and the top ends of the cloth foundation are leveled.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 22 show a first embodiment of the present invention. As shown in FIG. 1, a cloth foundation of a building according to this embodiment has a large width formed on the surface of a compacted gravel 10. It consists of a base and a rising part that stands vertically on the base. The cloth foundation of this wooden house is constructed by the formwork shown in FIG. 1, and this formwork is provided below the cloth foundation with a pair of plate-like riser forms 12 that model the sides of the cloth foundation. A pair of base molds 14 are provided to form the side of the wide base and a part of the upper surface adjacent to the side of the base. And
A fixing member 16 for integrally fixing and holding the pair of rising portion mold frames 12 is provided, and a pedestal 18 for holding the base forming frame 14 and the fixing member 16 is further provided.

The fixing member 16 and the pedestal 18 are fixed to each other by screws 20 as shown in FIGS. As shown in FIG. 3, the fixing member 16 is a metal plate having a fixed width. Both ends of the fixing member 16 are bent substantially at right angles to the longitudinal direction of the fixing member 16 to form engagement projections 22. An elongated hole 24 into which the screw 20 is inserted and fixed is formed in the center of the fixing member 16. The long hole 24 has a long diameter in the direction along the longitudinal direction of the fixing member 16,
It is provided so that the relative position of the fixing member 16 can be adjusted.
L-shaped members are respectively attached between the elongated holes 24 and the engagement projections 22 to form engagement projections 26. Pedestal 18
As shown in FIGS. 2 and 4, a metal plate having a constant width is bent in a convex shape, and both ends of the pedestal 18 are formed with flange portions 28 substantially parallel to the gravel 10. Pedestal 18
A hole 30 through which the screw 20 is inserted and fixed near the center of the
Are formed.

The base frame 14 is a metal plate bent into a predetermined shape as shown in FIG. 5, and the length of the base frame 14 in the longitudinal direction is, for example, within 2 m. The cross-sectional shape of the base form 14 is such that a flange portion 32 provided on the surface of the gravel 10 and a flange portion 32 which rises substantially perpendicularly
An upper end portion bent by the folding line has a side surface portion 34 substantially parallel to the gravel 10, and a flange portion 36 rising upward substantially perpendicularly from the upper end edge of the side surface portion 34. To form both sides of the base, formwork 1 for base
The pair 4 is provided to face each other at a predetermined interval. And the flange part 32 is being fixed to the gravel 10 by the pile 48 mentioned later.

For forming the corners of the base provided at the corners of the wooden house, a corner forming frame 40 and a corner forming form 42 shown in FIGS. 6 and 7 are used. The inner corner form 40 and the outer corner form 42 are metal plates bent in a predetermined shape, and have the flange portions 32, 36, and the side portions 34, similarly to the base form 14. The entry corner form 40 is formed to be bent at a substantially right angle so that the flange portion 32 is on the inside, and the outgoing corner form 42 is formed to be bent at a substantially right angle so that the flange portion 36 is on the inside. A flange 36 is cut out at a corner of the come-out corner form 42, and an extra portion of the rising portion form 12 attached inside the flange 36 projects outward.

For forming the base end, an end mold 44 shown in FIGS. 8 and 9 is used. The end mold 44 has a U-shape that covers the end of the base, and has flanges 32 and 36 and a side surface 34 formed therein. A flange 36 projecting upward is formed on two sides parallel to each other of the end form 44, and a flange 46 is formed near the center of the other side of the end form 44 to rise upward. A predetermined distance is provided between both ends of the flange 46 and the flange 36. An extra portion of the rising portion formwork 12 attached to the inside of the flange portion 36 projects outward. And
A flange portion 4 is provided between the pair of rising portion molds 12.
A thin rising portion formwork 47 is attached to the inside of 6.

Then, the base form 14 and the corner form 4
A stake 48, which is a connection fixing member for fixing the corner formwork 42 and the end formwork 44 to the gravel 10, has a rod-like shape whose tip is bent in a U-shape as shown in FIG. The projections and depressions 49 are formed to prevent the protrusions 10 from coming off.
Further, a pile 50 as shown in FIG. 11 may be used. The pile 50 has an elongated plate-like projection 52 embedded in the gravel 10.
And locking portions 54 formed on both side edges above the protrusion 52 and protruding sideways in parallel with each other. Locking part 5
The lower edge of 4 is formed substantially perpendicular to the longitudinal direction of the projection 52.

The base mold 14, the corner forming form 40, the corner forming form 42, and the end form 44 are connected by a connecting member 56 shown in FIG. The connecting member 56 is a metal plate bent into a predetermined shape. One end is bent at a substantially right angle, and a slit 58 is formed in the center of the other end along the longitudinal direction of the connecting member 56. The side portions are flange portions 60 that are bent at substantially right angles in opposite directions. Side portions 3 of adjacent base forms 14, 14
The connecting members 4 and 34 are connected to the connecting members 56 at the side edges as shown in FIG.
Are abutted, and a plate-shaped wedge member 62 is inserted into the slit 58 and fixed. The wedge material 62
As shown in FIG. 13, the width of the wedge member 62 gradually widens and is formed in a wedge shape.

The rising portion formwork 12 includes a plate 64 for shaping the side surface of the cloth, a reinforcing member 66 attached to one surface of the plate 64 and surrounding the side edge of the plate 64, and a reinforcing member 66 parallel to each other. Are provided along the plate 64.

Then, the base formwork 14 and the corner forming formwork 4 are formed.
The outgoing corner form 42 and the end form 44 are attached to the reinforcing member 66 of the rising section form 12 by an attachment member 70 which is a connection fixing member shown in FIGS. Mounting member 7
Numeral 0 denotes an elongated metal plate having an L-shaped holding portion 72 whose one end is bent twice substantially at right angles to the longitudinal direction of the mounting member 70. A through hole 74 for driving a nail or the like is formed near the other end of the mounting member 70. Mounting member 7
No. 0 is abutted along a corner of the auxiliary member 66 of the rising portion formwork 12 as shown in FIG. Then, the flange portion 36 of the base frame 14 and a part of the side surface portion 34 adjacent to the flange portion 36 are brought into contact with the holding portion 72 and locked.

Further, the base form 14, the corner forming form 40,
The rising corner formwork 42 and the end formwork 44 are fixed to the rising portion formwork 1 by an attachment member 74 which is a connection fixing member shown in FIGS.
The second reinforcing member 66 may be attached. Mounting member 74
Is an elongated metal plate, and the vicinity of one end is bent once substantially at right angles to the longitudinal direction of the mounting member 74 to form a holding portion 76. In the vicinity of the other end of the mounting member 74, a through hole 78 for driving a nail or the like is formed. As shown in FIG. 18, the mounting member 74 is provided with the auxiliary member 66 of the rising portion formwork 12.
And fixed by nails or the like.

At the lower ends of the pair of rising portion mold frames 12, a width stopper 80 for maintaining the interval between the pair of rising portion mold frames 12 is attached. Width stopper 84
As shown in FIG. 19, FIG. 20, and FIG. 21, through holes 82, 82 for driving nails or the like are formed at both ends of an elongated metal plate. The width stopper 80 is bent upward along the side of the reinforcing member 66 of the pair of rising portion mold frames 12, and then bent inward, overlapped on the upper surface of the reinforcing member 66, and fixed with nails or the like.

A head connecting member 84 for connecting the pair of rising section molds 12 is attached to the upper ends of the pair of rising section molds 12. The head connecting member 84 is a metal plate as shown in FIG. 22, near both ends and near the center, on both side edges of the head connecting member 84, in the same direction at substantially right angles to the head connecting member 84. A protruding engagement projection 86 is formed. The reinforcing material 66 at the upper end of the pair of rising portion mold frames 12 is fitted between the engagement projections 86, 86, and the interval between the pair of rising portion mold frames 12 is kept constant.

A method of constructing a fabric foundation for a building according to this embodiment will be described. First, the ground was cut down, and there was gravel 10
Spread more sand and squeeze. Then, the reinforcing bar 88 is assembled. On the surface of the gravel 10, fix the fixing member 16 in advance.
The pedestal 18 to which is attached is placed in the formation position of the base.
At this time, the pedestal is attached at a predetermined interval along the longitudinal direction of the base, for example, within 1 m. Next, the reinforcing member 66 of the rising portion formwork 12 is fitted and attached between the engaging protrusions 26 and 22 of the fixing member 16. At this time, the mold 12 for the rising portion is aligned, and if necessary, the screw 20 is loosened and the fixing member 16 is slid with respect to the pedestal 18 to correct the position. At the lower end of the rising portion mold 12, a width stopper 80 is attached near the middle of the pedestals 18, 18 with nails or the like. Also, a head connecting member 84 is attached to the upper end of the rising portion formwork 12, and the head connecting material 84 is attached within a predetermined interval, for example, within 1 m, along the longitudinal direction of the rising portion formwork 12. Then, the base frame 14 is brought into contact with the pedestal 18, and the flange portion 36 of the base frame 14 is attached to the reinforcing member 6 of the rising portion frame 12 by attaching members 70 and 76.
Fix to 6. The mounting member 70 prevents the base form 14 from rising, and the mounting member 76 forms the base form 14
The mounting members 70 and the mounting members 76 are used alternately as appropriate. The base frames 14, 14 adjacent to each other in the longitudinal direction of the base are connected to each other by a connecting member 56. Then, the flange 32 of the base formwork 14 is
It is fixed to gravel 10 by 8 or pile 50. Piles 48, 50
Are attached at predetermined intervals along the longitudinal direction of the base formwork 14, for example, within 1 m. At that time, the center line is aligned using the core holding aid and water thread as necessary. Piles 48, 50
When is not used, the soil may be backfilled in the flange portion 32 of the base formwork 14, or the soil and the piles 48 and 50 may be used together.

Next, concrete is cast at one time inside the rising portion formwork 12 and the base formwork 14. Curing concrete, head connecting material 84, formwork for rising part 1
2, base form 14, piles 48, 50, connecting member 56,
The mounting members 70 and 76 are removed, and the soil in the base portion is backfilled to level the ground. And level the top of the cloth foundation. In this state, the fixing member 16, the pedestal 18, and the width stopper 80 are embedded and fixed in the base.

According to the fabric foundation and the method of construction of the building of the embodiment, the formwork is easily assembled to form the base and the rising portion of the fabric foundation simultaneously, so that the construction period is short and economical. Since the base formwork 14 is fixed to the gravel 10, the base formwork 14 can be reliably installed without being lifted by the weight of the concrete at the time of concrete casting. In addition, the construction period is not affected by rainy weather when the concrete is poured, and the construction period is not delayed. Since the base portion and the fabric base are simultaneously cast, the construction period is shortened by about two days, and the joint portion between the base portion and the fabric base is strong without lowering the strength. In addition, since the pump truck to be used for concrete placement can be arranged only twice or once, the cost is reduced in this respect as well. Since the work is easy as described above, no special technique is required, the work can be performed by a worker other than a skilled craftsman, and the required staff can be reduced. Formwork for rising part 1
2. The assembling work of the base formwork 14 and the reinforcing bar 88 can be performed intensively, and the working efficiency is good. The cloth foundation of the wooden house of this embodiment has consumables because the pedestal 18 and the like are buried in concrete and cannot be reused. For example, costs of about 50,000 yen per building are required. Reductions are possible, resulting in economics. Rise frame 12, base frame 14, connecting member 5
6, the piles 48, 50, etc. are made of metal, have durability, and can be used repeatedly.

In the method of constructing a fabric foundation for a building according to this embodiment, concrete may be cast in two stages. First, concrete is cast inside the base formwork 14 and cured for a predetermined time, and then, on the same day, concrete is cast inside the riser formwork 12 and further cured for a predetermined time. Then, cure the concrete, and connect 4 heads 8
4. Forming part 12 for rising part, Forming part 14 for base, Pile 4
8, 50, connecting member 56, mounting member 70, 7-head connecting member 8
4. Forming part 12 for rising part, Forming part 14 for base, Pile 4
8, 50, the connecting member 56, and the mounting members 70 and 766 are removed, and the soil in the base portion is backfilled to level the ground. And level the top of the cloth foundation.

According to this construction method, concrete is cast in two stages and the rising portion is formed after the base portion is slightly hardened, so that the weight of the concrete at the rising portion is applied to the base formwork 12. As a result, the force acting in the direction in which the base frame 12 is lifted is weakened, which is safer.

In the method of constructing a fabric foundation for a building according to this embodiment, concrete may be cast in two days. First, concrete is brought into contact with the inside of the base formwork 14, cured for a predetermined period of one day or more, and hardened. Then, concrete is poured into the inside of the rising portion formwork 12, and after curing for a predetermined time, the locking member 62, the rising portion formwork 48, the base formwork 12, and the pile 20 are removed to bury the soil of the base portion. Return and level. And level the top of the cloth foundation.

According to this construction method, since the concrete at the rising portion is poured after the base portion is substantially hardened, the weight of the concrete at the rising portion is not applied to the base formwork 12, and the base formwork 12 There is no force that works in the direction to lift the surface and it is safe.

Next, a second embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. In the wooden fabric base of this embodiment, the fixing member 16 and the pedestal 18 are welded as shown in FIG.

The construction method of the fabric foundation of the building of this embodiment is almost the same as that of the above embodiment. Since the pedestal 18 and the fixing member 16 are welded and fixed to each other, the position of the rising portion formwork 12 is corrected by moving the pedestal 18. The concrete may be cast at once, or may be divided into two stages or two days.

According to the fabric foundation for a building and the method of construction according to this embodiment, the same effects as those of the above-described embodiment can be obtained, and since the fixing member 16 and the pedestal 18 are welded, the screw 20 is unnecessary. And the number of parts is small.

The construction foundation of the building and the construction method of the construction foundation according to the present invention are not limited to the above embodiments, and the materials and the shapes of the respective members can be appropriately changed. A conventional wooden formwork may be used for the riser form 12.

[0034]

According to the present invention, a fabric foundation form of a building and a method of constructing a fabric foundation of a building can be easily assembled to form a base and a rising portion of the fabric foundation at the same time.
The construction period is short and economical.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a cloth foundation of a building and a method of constructing the cloth foundation of the building according to a first embodiment of the present invention.

FIG. 2 is a right side view showing a fixing member and a pedestal according to the embodiment.

FIG. 3 is a top view of the fixing member of the embodiment.

FIG. 4 is a top view of the pedestal of this embodiment.

FIG. 5 is a front view and a longitudinal sectional view showing a base formwork of this embodiment.

FIG. 6 is a top view showing the entering corner formwork (A) and the outgoing corner formwork (B) of this embodiment.

7 is a sectional view taken along line AA of FIG. 6 (A) and a sectional view taken along line BB (B) of FIG. 6;

FIG. 8 is a top view of the end formwork of this embodiment.

FIG. 9 is a sectional view taken along the line CC of FIG. 8;

FIG. 10 is a right side view of the pile according to the embodiment.

FIG. 11 is a right side view (A), a rear view (B), and a plan view (C) of the pile of this embodiment.

FIG. 12 is a right side view (A) and a plan view (B) of the connecting member of this embodiment.

FIG. 13 is a right side view (A) and a plan view (B) of the wedge member of this embodiment.

FIG. 14 is a perspective view showing a use state of a connecting member and a wedge member of this embodiment.

FIG. 15 is a right side view (A) and a plan view (B) showing the mounting member of this embodiment.

FIG. 16 is a right side view showing a usage state of the mounting member of this embodiment.

FIG. 17 is a right side view (A) and a plan view (B) of the mounting member of this embodiment.

FIG. 18 is a right side view showing a usage state of the mounting member of this embodiment.

FIG. 19 is a right side view of the width stopper of this embodiment.

FIG. 20 is a plan view of the width stopper of this embodiment.

FIG. 21 is a right side view showing a use state of the width stopper according to this embodiment.

FIG. 22 is a right side view (A) and a plan view (B) of the head connecting member of this embodiment.

FIG. 23 is a right side view showing a cloth foundation of a building and a method of constructing the cloth foundation of the building according to the second embodiment of the present invention.

FIG. 24 is a perspective view showing a conventional cloth foundation of a building and a method of constructing the cloth foundation of the building.

FIG. 25 is a longitudinal sectional view showing a cloth foundation of a conventional building.

[Explanation of symbols]

 12 Formwork for rising part 14 Formwork for base 16 Fixing member 18 Pedestal 48,50 Pile 56 Connecting member 62 Wedge member 70,74 Mounting member 80 Width stopper 84 Head connecting member 88 Steel bar

Claims (5)

[Claims] 1. A pair of plate-shaped rising part form frames for modeling the rising part side face of a fabric foundation of a building, a side face of a wide base provided at a lower part of the fabric foundation of the building, and a side face of the base. A pair of base molds that form a part of the upper surface adjacent to the side surface, and a pedestal that integrally connects and holds each of the rising molds and each of the base molds, are provided. A fabric foundation formwork for a building, comprising: a connection fixing member for integrally connecting the formwork and the base formwork to each other and fixing the formwork to the ground, and integrally forming a mold for a fabric foundation of the building. . 2. The pedestal is a long and thin metal plate, and both ends of the pedestal are flange portions which are attached to the ground, and the lower end of each of the molds for the rising portions is provided at the center of the pedestal. A fixing member to be fixed is provided, and two pairs of engaging projections are attached to the fixing member, projecting substantially perpendicularly to the opposite direction to the ground, and holding a lower end of each of the rising portion formwork. The fabric base formwork of the building according to claim 1, wherein: 3. The fabric base form for a building according to claim 1, wherein the base form is fixed to the ground with a fixing member. 4. A pedestal, which is a thin metal plate bent in a convex shape, is placed on the ground, and the pedestal has a side surface of a wide base provided below a fabric base form of a building and this side surface. A pair of long base forms that form part of the upper surface adjacent to the base and a pair of plate-shaped rising forms that form the sides of the fabric foundation form of the building are connected to each other. A method for constructing a cloth foundation for a wooden house, wherein concrete is poured at once into the formwork and the formwork for each of the rising portions. 5. Both ends of the pedestal bent in a convex shape are flange portions mounted on the ground, and a lower end portion of each of the rising portion formwork is fixed to a center portion of the pedestal. A fixing member is attached, and the fixing member is provided with two pairs of engagement protrusions projecting at a substantially right angle in a direction opposite to the ground, and a lower end of the rising portion formwork is provided between the engagement protrusions. 5. The method according to claim 4, wherein the fabric foundation formwork of the building is abutted and fixed.