JPH0641986A - Foundation construction for building - Google Patents

Abstract

PURPOSE:To abandon the use of an exclusive formwork for constructing a foundation, remarkably shorten the construction period of a foundation constructing work so as to shorten the whole construction period, and contribute to decrease of building cost. CONSTITUTION:This foundation construction is provided with a pair of platelike panels 1,1 made of concrete, and a base plate 2 made of concrete provided on the ground on which the foundation is constructed, and having engaging parts 17, 17 on the upper face for positioning so as to engage with the lower ends of the panels 1 and decide the space between the panels. The panels 1, 1 are provided and fixed, prescribing the space between, on the base plate 2 horizontally provided on the ground, and concrete is placed between the panels, so as to form a foundation in one body together with the base plate 2 and the panels 1, 1.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a basic structure of a building.

[0002]

2. Description of the Related Art In a wooden building or the like, in order to turn the foundation of a building, a cloth foundation is constructed on the ground at a position corresponding to the foundation,
Anchor bolts protruding from this cloth foundation are penetrated into the base and fixed with nuts, and pillars are erected on the base.

In the conventional construction of the above-mentioned cloth foundation, as shown in the cross section in FIG. 12, an aggregate (a) such as split stones and gravel is embedded and tamped in the ground where the cloth foundation is laid, The discarded concrete (b) is hammered and solidified on it, the formwork (c), (c) is installed and fixed in parallel on this concrete (b), and the concrete (d) is placed between them, and the concrete ( After the hardening of (d), the molds (c) and (c) are removed, and the molds (e) and (e) are installed parallel to each other on the concrete (d) with the thickness of the cloth foundation as the inner dimension. (F) and (f) define the interval, concrete (g) is placed between these formwork (e) and (e), the base of the anchor bolt (h) is embedded and then the concrete ( g) is cured, and after hardening, the molds (e) and (e) are removed, and the required depth (gran Backfill soil to line G.L), portions appearing upper surface (i) the outer surface of the building with finishing mortar are adapted to the fabric foundation is finished outer surface.

[0004]

However, in the construction of the above-mentioned conventional cloth foundation, since various processes as described above are inevitably required, the work man-hours are inevitably increased, and moreover, it is necessary to wait for the concrete to harden. Since there is a problem that the construction period becomes long because it has to be transferred to the process of (3), and many molds (c), (c), (e), (e) are required, it is necessary to move to the site of the molds. A lot of manpower is required for assembling such as loading and unloading, and moreover, it is troublesome to assemble the formwork at the place where it is bent at a right angle or where it is connected to the T-shape. A great deal of time and labor are spent on it, which is also a cause of skyrocketing construction costs.

In view of this, the present invention abolishes the use of a formwork dedicated to the construction of the foundation, enables the construction period of the foundation construction work to be greatly shortened, and shortens the entire construction period, thereby contributing to the reduction of the construction cost. The purpose is to provide the basic structure of the building that can be done.

[0006]

In order to achieve the above object, the present invention is directed to a pair of rectangular plate-shaped concrete panels, which are installed on the ground where a foundation is to be constructed, and whose lower end engages with the upper surface. And a concrete base plate having an engaging portion for positioning to determine the panel interval, and the panel is installed and fixed at a fixed interval on the base plate installed horizontally on the ground, and the concrete is fixed between the panels. The base plate and the panel are integrally formed by casting to form a foundation, and the base plate has leg pieces on both sides in the longitudinal direction so as to form a space on the lower surface side and the panel interval. A window hole for leading out the poured concrete to the lower surface side of the base plate on the upper surface of the portion corresponding to A metal fitting having a substantially C-shaped groove is embedded in a portion corresponding to each other and a joint portion of the panel and the base plate, and a connecting portion for driving and connecting a wedge member having an H-shaped cross section to the metal fitting is provided. ,
An anchor bolt block sandwiched between the panels facing each other and having anchor bolts for mounting a base projecting from the upper ends thereof, and a required number of anchor members embedded in the cast concrete on the opposite side surfaces of the panels. The protrusions are defined as claims 2 to 5, respectively.

[0007]

The base plate is installed horizontally on the ground on which the foundation is to be constructed, and the lower end of the panel is engaged with the panel engaging portion on the upper surface of the base plate to define the interval between the panels, and then the panel is fixed. Concrete is placed between the base plate and the panel to form a foundation. As a result, a foundation is formed in which the cast concrete is integrated with the panel and base plate.

In this case, as described in claim 2, leg pieces are provided on both sides in the longitudinal direction so as to form a space portion on the lower surface side of the base plate, and concrete is poured on the upper surface portion of the portion corresponding to the panel interval on the lower surface of the base plate. If the window hole for leading out to the side is opened, the concrete poured between the panels will enter the lower side of the base plate, and by tamping, the base plate will be integrated with the aggregate on the ground side and the root block will be integrated. Is formed and is also integrated with the concrete between the panels to form a stronger foundation.

According to a third aspect of the present invention, connecting metal fittings having substantially C-shaped grooves are buried in the joint ends of the panels and the joint portions of the panel and the base plate corresponding to each other.
If a connecting portion for driving a wedge member having an H-shaped cross section into these connecting metal fittings is provided, the panel and the base plate can be firmly connected to each other without a gap by driving the wedge member. It can be installed quickly without any use.

Further, according to claim 4, an anchor bolt for connecting to the base can be easily provided, and according to claim 5, the integrity of the panel and the concrete is further ensured.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

The embodiment shown in the drawings illustrates a case in which all of claims 1 to 5 are provided, and a pair of concrete panels 1 and 1, a base plate 2 installed on the ground, and a panel 1 and 2. And an anchor bolt block 3 interposed between the two.

The panel 1 is standardized in advance in a factory (for example, length 1000 m / m, height 500 m / m, thickness 30 m / m).
) Is produced by burying about two connecting metal fittings 4, 4 on one side at the longitudinal end and the lower part thereof, and at substantially central positions in the longitudinal direction of the facing surfaces of the panel 1. Recesses 6 and 6 into which the convex portions 5 and 5 of the side surface of the anchor bolt block 3 are fitted are formed, and anchor members 7, 7 ...

The connecting metal fitting 4 and the wedge member 8 connecting the connecting metal fitting 4 to form a connecting portion are shown in FIG. 2 as a set of perspective views, in FIG. 3 as to the embedding direction in the panels 1 and 1, and in FIG. As shown in the front view at the time of connection, the connecting fitting 4 is a casting made of aluminum, cast iron, or the like, and the connecting fitting 4 is formed with a groove 9 having a C-shaped cross section from one end to the other end of the rectangular block.
An anchor 11 that is retained in the panel 1 is integrally formed on the side opposite to 0, and the surface 12 where the opening 10 opens is placed on the same surface as the end surface 1a and the lower surface 1b of the panel 1. To be buried as. A convex portion 12a and a concave portion 12b are formed on the surface 12 so as to face each other when the connecting metal fittings 4 and 4 come into contact with each other and are in contact with each other to prevent positioning and displacement.

The wedge member 8 has protrusions 14 and 14 on the left and right sides of the flat plate portion 13 that are sized to fit in the grooves 9 and 9, and the thickness of the flat plate portion 13 that joins these protrusions 14 and 14 together. Is sized to fit into the opening 10 of the groove 9,
The protrusions 14 and 14 are non-parallel to each other when seen from a plane, and the grooves 9 and 9 of the left and right connecting fittings 4 and 4 are arranged from the side with a wide interval.
The left and right connecting fittings 4 and 4 are brought into contact with each other by inserting into and pressing into, and the surfaces 12 and 12 at which the openings 10 and 10 are opened are brought into close contact with each other. 8a is a handle groove.

The anchor 11 may have a shape that does not come off when the connecting fitting 4 is embedded in the panel 1, and may have one or two large diameter portions as shown in the drawing.

The base plate 2 is made of concrete which is standardized and produced in a factory in advance. As shown in FIGS. 1 and 5, the base plate 2 has leg pieces 16 on both sides in the longitudinal direction so as to form a space 15 on the lower surface side. 16, the panel engaging portion 1 having a step portion with which the lower end of the panel 1 engages in the longitudinal direction of the upper surface.
7 and 17 are formed, and the width of the protruding portion 18 between the engaging portions 17 and 17 determines the inner dimension between the panels 1 and 1.

By removing the protruding portion 18 on the upper surface of the base plate 2 in the required longitudinal direction, the base plate 2 is removed.
When a concrete hole 20 is formed between the panels 1 and 1, a window hole 19 penetrating the lower surface of the base plate 1 is placed in the space 15 on the lower surface of the base plate 2 through the window hole 19.
0 is filled. Then, in the panel engaging portions 17, 17 of the base plate 2, the connecting fittings 4, 4 embedded in the lower portion of the panel 1 and the corresponding connecting fittings 4, 4.
4 are buried, and the orientation thereof is the same as in FIG.

As shown in FIG. 1, the anchor bolt block 3 is made of concrete produced in advance in a factory and has a prismatic shape having substantially the same height as that of the panel 1, and a base is fixed to the upper end. The base portion of the anchor bolt 21 for embedding is embedded, and the above-mentioned convex portions 5 and 5 are provided on the two opposite side surfaces. The thickness of the portion without the convex portions 5 and 5 is the same as that of the protruding portion 18 of the base plate 2. It is sized to match the width. In the figure, 22 indicates an aggregate.

Next, the construction procedure will be described.

[0021] After laying and consolidating aggregates 22 such as split stones and gravel on the ground on which the foundation is to be constructed, the base plate 2 is set on the ground to set the level and level, and the panel on the upper surface of this base plate 2 The lower ends of the panels 1 and 1 are engaged with the engaging parts 17 and 17, and the convex portion 5 and the concave portion 6 are fitted with the anchor bolt block 3 interposed between the panels 1 and 1 and the lower end of the panel 1 and the base plate. The panel members 1, 1 and the base plate 2 are integrally fixed by inserting and driving the wedge member 8 into the grooves 9, 9 of the connecting fittings 4, 4 embedded in the panel engaging portions 17, 17. (Fig. 6). Further, the panels 1 and 1 connected to this are also installed in the same manner, and the wedge members 8 are driven into the connecting fittings 4 and 4 at the ends of the adjacent panels 1 and 1, whereby the panels are integrally coupled. .

In this way, the panel 1 is constructed in the basic form.
The fresh concrete 20 is poured in between 1 and waits for hardening (FIG. 7). At the time of this pouring, a part of the concrete 20 flows out from the window hole 19 of the base plate 2 to the lower surface side of the base plate 2, and the space 15 on the lower surface of the base plate 2 is filled with the concrete so that the base plate 2 and the aggregate 22 are integrated. And the root blocks are formed, and the anchor members 7, 7 ... And the anchor block 3 of the panels 1, 1 are embedded in the cast concrete, and the concrete 20 and the panels 1, 1 are formed.
And are integrated.

After the cast concrete was hardened, the earth and sand were washed with G. Backfill to the L line and level the top surface of the cast concrete to complete the foundation.

When a foundation with reinforcing bars is used, the panels 1 and 1 are fixed to the base plate 2 and then the panels 1 and 1 are fixed.
Reinforcing bars may be arranged between the 1 and concrete may be placed.
Moreover, the thickness of the foundation can be dealt with by preparing the base plates 2 having different widths of the protruding portions 18 of the base plate 2.

The corners and T-shaped portions of the foundation may be arranged such that the ends of the panels 1 and 1 are butted against each other and joints are formed in the gaps, but the corners and T-shaped portions are formed at right angles as shown in FIG. If the bent panel 1'and the corresponding base plate are prepared, it can be constructed in the same manner as the above-mentioned straight line portion.

At the place where the end of the foundation remains, the concrete wall plate 23 having the same width as the width of the foundation including the panels 1 and 1 is closed as shown in FIGS. Also in this case, the connection fittings 4 and 4 are embedded, and the connection fittings 4 and 4 and the connection fittings 4 and 4 at the end portions of the panels 1 and 1 are used for connection. Further, as for the base plate 2 as well, in order to prevent the outflow of ready-mixed concrete, the lower surface of the end portion of the base plate 2 is closed by the wall plate 24 as shown in FIG.

[0027]

As described above, according to the present invention, a base plate is installed on the ground on which a foundation is to be constructed, and a pair of panels are fixed on the base plate at fixed intervals, and then concrete is poured between the panels. Since the foundation is formed only by hardening, it is unnecessary to assemble the formwork with bolts, remove the formwork after hardening the concrete, and finish the surface as in the past. The cost is remarkably reduced, the construction period is significantly shortened, and the construction can be performed at low cost at an early stage, which can greatly contribute to the reduction of the construction cost.

Since the panel and the base plate are individually lightweight, they can be easily transported to the site and can be constructed without any special technique, and the foundation can be surely constructed.

According to the second aspect, the base plate and the aggregate are all integrated by the concrete cast between the panels to form an extremely strong foundation.
Further, according to the connecting portion structure of the third aspect, the panels can be connected to each other and the panel and the base plate can be connected only by driving the wedge member, so that a strong connection can be achieved without using any bolts. If claim 4 is added, not only does the work of burying the anchor bolt for connection with the base each time unnecessary, but the installation position of the anchor bolt can be made accurate, and the anchor bolt bends to align with the mounting hole of the base. There is no inconvenience such as loss of sex.
If claim 5 is added, the cast concrete and the panel can be integrally connected, and a more solid foundation can be obtained.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a basic structure according to the present invention.

FIG. 2 is an exploded perspective view of a connecting fitting.

FIG. 3 is a partial perspective view showing an end portion of a panel in which a connecting fitting is embedded.

FIG. 4 is a partial front view showing a state in which the connecting fittings are joined together to connect the panels.

FIG. 5 is an end view of the base plate.

FIG. 6 is a cross-sectional view showing a state where the panel is assembled to the base plate.

FIG. 7 is a cross-sectional view of a state in which the concrete is poured.

FIG. 8 is a plan view showing another shape of the panel.

FIG. 9 is a plan view showing an example of closing the end of the foundation.

FIG. 10 is a partial sectional view of the same.

FIG. 11 is an explanatory diagram showing an example of closing the end of the base plate.

FIG. 12 is a sectional view showing a conventional basic structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 panel 2 base plate 3 anchor bolt block 4 connecting metal fitting 5 convex part 6 concave part 7 anchor member 8 wedge member 9 groove 10 opening 11 anchor 12 face 13 flat plate part 14 projecting part 15 space part 16 leg piece 17 panel engaging part 18 protruding Part 19 Window hole 20 Concrete 21 Anchor bolt 22 Aggregate 23 Wall plate 24 Wall plate

Claims (5)

[Claims] 1. A concrete having a pair of rectangular plate-shaped concrete panels and an engagement portion which is installed on the ground where a foundation is to be constructed and which is positioned on the upper surface so that the lower end of the panel is engaged to determine the panel interval. It is equipped with a base plate made of steel, and the panels are installed and fixed on the base plate that is set horizontally on the ground with a fixed interval, and concrete is placed between the panels to form the foundation by integrating the base plate and the panel. The basic structure of the building characterized by 2. The base plate has leg pieces on both sides in the longitudinal direction so as to form a space on the lower surface side, and for guiding the cast concrete to the lower surface side of the base plate on the upper surface portion of the portion corresponding to the panel interval. The foundation structure of a building according to claim 1, wherein the window hole is opened. 3. Substantially C at the joint end portions of the panels and the joint portions of the panel and the base plate corresponding to each other.
The foundation structure of a building according to claim 1 or 2, further comprising a connecting portion in which connecting metal fittings each having a groove of a shape are embedded, and a connecting portion for driving and connecting a wedge member having an H-shaped cross section to the connecting metal fittings. 4. The foundation structure for a building according to claim 1, further comprising an anchor bolt block sandwiched between the opposing panels and having an anchor bolt for mounting a base projecting from an upper end thereof. 5. The foundation structure for a building according to claim 1, wherein a predetermined number of anchor members embedded in the cast concrete are projected on opposite side surfaces of the panel.