JPH11286992A - Type reinforced concrete building built up - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reinforce the advantage of reinforced concrete by easy assembling and high strength. SOLUTION: A concrete cylindrical wall 21 is supported to a reinforced concrete cylindrical foundation base l, and a roof 31 is supported by the wall 21. The roof 31 is placed on a first ring surface belonging to one plane formed as the upper end surface of the wall 21, the wall 21 is placed to the foundation base 1 through a second ring-like surface 23 which is the lower end surface of the wall 21 and belongs to one plane, and the foundation base 1 and the wall 21 are manufactured in a factory and carried to a building setting place by a carrier. At least three divided parts or at least four divided parts area carried to the construction site by a truck and a crane, and easily assembled. The resulting building can provide a high strength by the reinforcements in the cylinder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a prefabricated reinforced concrete building. More specifically, the present invention relates to a simple assembling type reinforced concrete building that can transport a part manufactured in a factory to a construction site and easily assemble it using a crane there.

[0002]

2. Description of the Related Art A reinforced concrete building is formed by pouring ready-mixed concrete conveyed to a building site by a mixer truck into a cavity formed by a wooden frame and solidifying and molding the same.

A small building is installed in a vacant lot of a garden, an amusement park, an exposition hall, and a construction site. Such buildings are storerooms, simple reception offices, mobile toilets, and the like. Expo site,
It is particularly required that those installed at construction sites be removable.

[0004] As such a building, a building made of reinforced concrete is known. Floor and foundation integrated, floor and foundation bolted together, wall and roof bolted together, floor and foundation integrated wall mounted It has been known. In these known products, partial integration or partial prefabrication has been performed. The entire prefabrication has not been performed because reinforced concrete structures have been considered to be advantageous for on-site molding and assembly.

[0005] Small buildings such as simple huts are often assembled by attaching a resin board to a steel frame. This is because resin molding technology has reached its heyday,
This was due to the socio-economic situation such as the fact that there were many carpenters, that the road conditions were poor and that truck cranes were difficult to enter the site, and that there were many regulations. Conversely, stricter regulations have led to wider roads, and truck cranes have become more maneuverable and have become less expensive with their spread, making it easier to transport heavy objects. May be.

For example, mobile toilets, temporary offices, and the like, which are expected to increase in demand in the next century when large and small expositions increase, are resistant to typhoons and safely support air-conditioning equipment, which is a heavy object, to users. It is preferable that it is made of concrete that can provide a sense of security and can be provided at low cost. Further, it is desired that it can be easily assembled and disassembled.

There is also a need to avoid the use of wood to protect the natural environment, especially biological systems. On the other hand, research on the performance of concrete is also progressing. For example, research on factory production that optimizes the ideal particle size distribution from around 70 microns, which is preferable as the particle size of clayey particles, to around 3 mm, which is preferable as the particle size of gravel particles. The goodness of concrete by well-managed factory production rather than on-site production is being reviewed. The importance of concrete as a structural member resistant to earthquakes has begun to be recognized again.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide a high-strength assembled reinforced concrete building which can be easily assembled and disassembled and has a high strength.

It is another object of the present invention to provide a high-strength assembled reinforced concrete building which has a lower cost and can be easily assembled and easily disassembled.

It is still another object of the present invention to provide a high-strength assembled reinforced concrete building which can be easily assembled and disassembled with a truck crane.

It is still another object of the present invention to provide a high-strength assembled reinforced concrete building which can be transported to a site by a truck crane and easily assembled and disassembled at the site.

It is still another object of the present invention to provide a high-strength assembled reinforced concrete building which can transport a plurality of parts to a site by a single truck crane and easily assemble the site.

[0013]

SUMMARY OF THE INVENTION A prefabricated reinforced concrete building according to the present invention comprises a reinforced concrete tubular base, a concrete tubular wall supported on the base, and a concrete tubular wall. A supported roof, the roof being mounted on the wall on a first annular surface belonging to a plane formed as the upper end surface of the wall, the wall being the lower end surface thereof and one plane Is mounted on the base via a second annular surface belonging to the above, and the base and its wall are manufactured in a factory and transported by a transport vehicle to a building installation location, and further provided with a floor. At least three divided parts or at least four divided parts are transported to a construction site by a truck / crane or the like and are easily assembled.

The base and the wall, which are structural members requiring high strength, are formed in a cylindrical shape and are robust against pitching and rolling in all directions. In particular, the base, which is a structural member requiring high strength, is made of reinforced concrete.

Embodiments of the prefabricated reinforced concrete building according to the present invention are variously modified. The floor and the wall can be formed integrally. In this case, the floor is a wall part, and the floor part strengthens the wall part. The floor, which is separated from the wall, rests directly on the base. In this case, the floor is placed directly on the base on a third annular surface belonging to one plane formed as the upper end surface of the base. The first annular surface,
It is preferable that the second annular surface, and further the third annular surface, is a continuously closed ring-shaped edge surface. What is necessary is just to be substantially closed continuously, and it is unavoidable that an uneven surface is actually formed on them due to manufacturing accuracy or the like. These annular surfaces need not be closed, and the annular surface may be a partially continuous surface.

The wall can be placed directly on the base or on the floor. It is preferable that the upper end portion of the base is formed as a bulging portion that bulges inward with respect to a lower portion of the cylindrical portion. The bulging portion is formed as a so-called tapered portion. It is preferable that the reinforcing bar portion of the reinforcing bar arrangement structure of the base stand is inclined toward the inside (center side) of the cylindrical body in the bulging portion.

If two bases are used in combination, a larger house can be assembled. In that case,
Give them an abutment surface to connect the two bodies together.
The abutment surface is vertical during articulation, ie after assembly. 4 cylinders
In the case of a rectangular tube, it is preferable that all four outer surfaces are vertical surfaces. Both cylinders and polygonal cylinders are resistant to rolling in all directions. A cylindrical body and a polygonal cylinder having a reinforcing arrangement are particularly resistant to the roll. A structure in which the cylinders overlap in the vertical direction is generally resistant to pitching and rolling.

Both the floor and the roof may be made of concrete. In this case, it is preferable to provide a reinforcing structure to both of them. The base, floor, wall, and roof are connected to each other by a fitting structure such as a concavo-convex structure, so that an orthogonal connection structure of a cylinder whose axis is oriented vertically and a flat plate that extends horizontally (similar to bamboo shoots) Structure) is obtained, and the strength is further increased. The floor may be annular. The inner peripheral edge of the lower end of the wall formed in a ring shape also improves the strength. It is preferable that the base has a bottom portion having a large ground contact area as a lower end portion.

[0019]

The assembly type reinforced concrete building according to the present invention has high strength and is easy to assemble.

[0020]

FIG. 1 shows a first embodiment of a prefabricated reinforced concrete building according to the present invention. The base 1 is substantially cylindrical and made of reinforced concrete.
The base 1 has a reinforcing structure described later as an internal structure. The cylindrical body has a substantially horizontal cross section in a rectangular shape, and has four orthogonal outer peripheral surfaces 1A. The outer peripheral surface 1A is
Preferably, all four surfaces are vertical.

The base 1 has a tubular main body 2 and a bottom 3. The tubular main body part 2 and the bottom part 3 are produced in a factory by integral molding. The bottom portion 3 is a wheel-shaped portion extending integrally from the lower end portion of the tubular main body portion 2 toward the center. The addition of the bottom part 3 increases the ground contact area of the base 1. The central part of the bottom part 3 may be a hole.

The upper end portion 5 of the base 1 has a ring-shaped bulging portion 6 which bulges inward integrally therefrom. The bulging portion 6 has a larger horizontal sectional area as it goes upward. That is, the inner peripheral surface 7 of the bulging portion 6 is formed as a conical surface as a tapered surface. The uppermost end portion of the upper end portion 5 has a step structure.

The upper end surface of the step structure is formed by a high surface 8 and a low surface 9. The lower surface 9 is located inside the higher surface 8. The lower surface 9 coincides with the upper end surface of the bulging portion 6. The high surface 8 and the low surface 9 are collectively referred to as a third annular surface. This third annular surface is an annular square as shown in FIG. The third annular surface belongs to one horizontal plane, which is one plane. The third annular surface can be formed as a conical surface or a partial conical surface.

The floor 11 placed on the upper surface of the base 1 is formed of a floor main body portion 12 and a side peripheral portion 13. The floor 11 has a rectangular shape as shown in FIG. As shown in FIG. 1, the outer peripheral portion of the bottom surface of the floor main body portion 12 is
Interviewed directly.

The outer peripheral portion of the bottom surface of the side peripheral portion 13 is
Interviewed directly. In such an interview state, the outer peripheral surface (vertical surface) of the floor main body portion 12 is substantially inscribed in the inner peripheral surface of the convex peripheral portion (a part of the upper end portion 5) having the upper surface 8 as the upper end surface. As described above, the base 1 and the floor 11 are fitted into the concave and convex so as to be detachable in the vertical direction, and are fitted so as not to be detachable in the horizontal direction.

The wall 21 placed on the upper surface of the floor 11 is formed by a wall main body portion 22 and a bulging upper end portion 23. The wall 21 is also a rectangular cylinder substantially similar to the base 1. The lower end surface of the wall main body portion 22 is formed on the second annular surface 23. The second annular surface belongs to one horizontal plane, which is one plane. The second annular surface may be formed as a conical surface or a partial conical surface.

The second annular surface 23 is formed on the side peripheral portion 13 of the floor 11.
Directly in contact with the upper surface of the. The inner peripheral surface of the wall main body portion 22 substantially circumscribes the upper outer peripheral surface of the floor main body portion 12.
As described above, the wall 21 and the floor 11 are fitted in an uneven manner so as to be detachable in the vertical direction, and are fitted so as not to be detachable in the horizontal direction.
The wall 21 preferably has a reinforcing structure as an internal structure. The second annular surface 23 is provided to increase the contact area with the roof described later and to increase the strength of the upper end portion.

The roof wall 31 placed on the upper surface of the floor 11
It is formed from a roof main body portion 32 and a downwardly bulging portion 33. The inner peripheral surface of the lower bulging portion 33 is substantially
Circumscribes the outer peripheral surface of The roof 31 and the wall 21 are fitted in an uneven manner so as to be detachable in the vertical direction, and are fitted so as not to be detachable in the horizontal direction. The roof 31 preferably has a reinforcing arrangement as an internal structure.

The base 1, the floor 11, the wall 21, and the roof 31 can be assembled with each other from above and below. A hole is dug in the hut setting place, and the base 1 is fitted into the hole. The excavated soil is back-filled in the tubular main body portion 2 in an appropriate amount. The base 1, the floor 11, the wall 21, and the roof 31 can each be transported by a truck crane, and can be stacked from bottom to top by the crane.

For lifting using the lifting hook of the crane, bolt holes (not shown) provided on the base 1, floor 11, wall 21, and roof 31 can be used. Similarly, a truck crane can be used for dismantling.

FIG. 4 shows a second embodiment of a prefabricated reinforced concrete building according to the present invention. Embodiment 2
Is the base 1, floor 11, wall 2 except for the differences described below.
1. The roof 31 is the same as the first embodiment. The structure, shape and size of the wall 21 and the roof 31 are the same as those in the first embodiment.
2 is exactly the same. The base 1 according to the second embodiment is different from the base 1 according to the first embodiment in the shape of the upper end portion 5.

The upper end portion 5 of the base 1 is provided with a ring-shaped bulging portion 6 which bulges inward integrally therefrom. The bulging portion 6 has a larger horizontal sectional area as it goes upward. That is, the inner peripheral surface 7 of the bulging portion 6 is formed as a conical surface as a tapered surface. The uppermost end portion of the upper end portion 5 has a step structure.

The step structure has an inwardly projecting portion 34 which extends upward and inward from the bulging portion 6 and is formed integrally with the bulging portion 6. The upper end surface of the step structure is formed by a lower surface 35 and a higher surface 36. High surface 36
Are located inside the lower surface 35. High surface 36
Corresponds to the upper end surface of the inner protruding portion 34. The lower surface 35 coincides with the outer portion of the upper end surface of the upper end portion 5. The lower surface 35 and the higher surface 36 are collectively referred to as a third annular surface as in the first embodiment. The lower end surface of the wall 21 is in direct contact with the outer portion of the lower surface 35.

The floor 11 has an outer peripheral edge portion 37 protruding downward from the outer peripheral end portion. The outer peripheral edge portion 37
It is inscribed in the inner peripheral surface of the wall 21. The inner peripheral surface of the outer peripheral edge portion 37 is formed in a conical surface. The outer peripheral surface of the bulging portion 6 is formed on a circumferential surface. The conical surface of the outer peripheral edge portion 37 is in direct contact with the circumferential surface of the bulging portion 6.

The floor 11 and the base 1 are tapered. The point that the base 1 and the floor 11 are fitted in a concave and convex manner so as to be detachable in the vertical direction and are not detachably fitted in the horizontal direction is as follows.
This is the same as the first embodiment. Base 1, floor 11 and wall 21
Are inscribed in the horizontal direction.

The base according to the second embodiment can adopt a composite structure shown in FIG. The two abutting surfaces 1A are mutually
Is circumscribed. In this case, a gap S is generated between the adjacent floors 11. The gap S is about twice the thickness of the wall 21. A wall member of a normal wooden house can be fitted into this gap.

The two floors 11 are located at the abutting surface 1A.
It can be firmly connected by the bolt set 38. In this way, the base 1 can be partially used. On the lower end surface of the roof 31 of the first and second embodiments, a fourth annular surface 39 that is in direct contact with the first annular surface that is the upper end surface of the wall 21 is formed.

FIG. 6 shows a third embodiment of a prefabricated reinforced concrete building according to the present invention. Embodiment 3
Is the same as the first embodiment except for the following differences. In the third embodiment, the wall 21 and the floor 11 of the first and second embodiments are integrated.

The wall 41 placed on the base 1 has a wall portion 4
2 and a floor portion 43. Base 1 and wall 4
Embodiment 1 is that the roof 31 is fitted into the concave and convex so as to be detachable in the vertical direction and is not detachable in the horizontal direction.
Same as 2. The wall portion 42 and the floor portion 43 can be integrally formed at a factory.

The base 1 may be a simple square tube. The wall portion 42 includes a rectangular tube lower portion 44 as a portion lower than the floor portion 43. The inner peripheral surface of the lower portion 44 of the quadrangular cylinder circumscribes the outer peripheral surface of the base 1. The base 1 is placed on a cobblestone 45. By integrating the floor 11 and the wall 21, the mass production cost at the factory and the assembly cost at the site are reduced. The first annular surface and the fourth annular surface, which are the joining surfaces between the roof and the wall, may be surfaces belonging to an inclined plane in order to make the roof inclined.

FIG. 7 and FIG. 8 show a reinforcing arrangement as an internal structure of the base 1 of the first embodiment. The bar arrangement structure is, in principle, a lattice structure in which reinforcing bars extend vertically and horizontally. The vertical direction matches the vertical direction, and the horizontal direction matches the horizontal direction. The vertical and horizontal reinforcing bars may be braided or joined by welding.

The vertical reinforcing bar 51 is connected to the first horizontal reinforcing bar 52 in the bottom portion 3 formed by bending at the lower end in the horizontal direction. The second horizontal reinforcing bar 53 is orthogonal to the first horizontal reinforcing bar 52 in the bottom portion 3. Vertical reinforcing bar 51
The vertical reinforcing bar 51 located at the diagonal portion of the tube includes an oblique portion 54 whose upper portion is bent in the bulging portion 6 toward the center of the tube. The oblique direction portion 54 is preferably parallel to a diagonal plane which is a plane including the opposing corners of the rectangular cylinder in order to increase the strength of the corner. As shown in FIG. 8, the horizontal reinforcing bar 55 is orthogonal to the vertical reinforcing bar 51.

FIG. 9 and FIG. 10 show a reinforcing arrangement as an internal structure of the floor 11 of the first embodiment. The reinforcement arrangement is, in principle, a planar lattice structure in which reinforcing bars extend vertically and horizontally. The vertical reinforcing bar 56 and the horizontal reinforcing bar 57 may be assembled in a net shape or may be joined by welding. Such a plane grating structure can be multilayered. One of the layers extends to the side peripheral portion 13.

FIGS. 11 and 12 show the reinforcing arrangement of the base 1 of the prefabricated reinforced concrete building according to the second embodiment shown in FIG. The bar arrangement structure is, in principle, a lattice structure in which reinforcing bars extend vertically and horizontally. The vertical direction matches the vertical direction, and the horizontal direction matches the horizontal direction. The vertical and horizontal reinforcing bars may be braided or joined by welding.

The vertical reinforcing bar 51 'is formed by bending the first horizontal reinforcing bar 52 in the bottom portion 3 which is formed by bending at the lower end in the horizontal direction.
It is continuous. The second horizontal reinforcing bar 53 is orthogonal to the first horizontal reinforcing bar 52 in the bottom portion 3. Vertical reinforcing bar 5
The vertical reinforcing bar 51 located at the diagonal portion of the tube in 1
The upper part has an oblique part 54 ′ bent in the bulging part 6 on the center side of the tube. The diagonal portion 54 '
It is preferable to be parallel to a diagonal plane, which is a plane including the opposing corner lines of the rectangular cylinder, in order to increase the strength of the corner. FIG.
As shown in the figure, the horizontal reinforcing bar 55 'is
It is orthogonal to 1 '.

FIGS. 13 and 14 show a reinforcing arrangement as an internal structure of the floor 11 of the second embodiment. The reinforcement arrangement is
In principle, it is a flat lattice structure in which reinforcing bars extend vertically and horizontally.
The vertical reinforcing bar 56 'and the horizontal reinforcing bar 57' may be braided or joined by welding. Such a plane grating structure can be multilayered. One of them extends to the outer peripheral edge portion 37 protruding downward.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing Embodiment 1 of a prefabricated reinforced concrete building according to the present invention.

FIG. 2 is a plan view showing a base.

FIG. 3 is a plan view showing a floor.

FIG. 4 is a front sectional view showing Embodiment 2 of a prefabricated reinforced concrete building according to the present invention.

FIG. 5 is a front sectional view showing another use mode of the second embodiment.

FIG. 6 is a front sectional view showing Embodiment 3 of a prefabricated reinforced concrete building according to the present invention.

FIG. 7 is a front cross-sectional arrangement diagram showing a reinforcement arrangement of the base according to the first embodiment.

FIG. 8 is a side sectional view of FIG. 7;

FIG. 9 is a plan cross-sectional arrangement diagram showing the arrangement of the floor reinforcement according to the first embodiment.

FIG. 10 is a side sectional view of FIG. 9;

FIG. 11 is a front cross-sectional arrangement diagram showing the arrangement of reinforcing bars of the base according to the second embodiment.

FIG. 12 is a side sectional view of FIG. 11;

FIG. 13 is a plan cross-sectional arrangement diagram showing the arrangement of floor reinforcement according to the second embodiment.

FIG. 14 is a side sectional view of FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Foundation base 3 ... Bottom part 5 ... Upper end part 6 ... Bulging part 11 ... Floor 12 ... Floor main body part 21, 41 ... Wall 22 ... Wall main body part 23 ... 2nd annular surface 31 ... Roof 33 ... Lower bulging part

Claims (8)

[Claims] 1. A reinforced concrete cylindrical base, a concrete cylindrical wall supported by the base, and a roof supported by the wall, wherein the roof is the wall Is placed on the wall on a first annular surface belonging to one plane formed as an upper end surface of the wall, and the wall is a lower end surface of the wall and is attached to the base via a second annular surface belonging to one plane. A prefabricated reinforced concrete building, wherein the foundation and the wall are manufactured in a factory and transported by a transport vehicle to a building installation location. 2. The floor according to claim 1, further comprising: a floor directly mounted on the base, wherein the floor is formed on a third annular surface belonging to a plane formed as an upper end surface of the base. A prefabricated reinforced concrete building characterized by being placed on a foundation. 3. The prefabricated reinforced concrete building according to claim 2, wherein the wall and the floor are formed integrally. 4. The prefabricated reinforced concrete building according to claim 2, wherein the wall is directly mounted on the base. 5. The prefabricated reinforced concrete building according to claim 2, wherein the wall is directly mounted on the floor. 6. The prefabricated reinforced concrete building according to claim 1, wherein said first annular surface and said second annular surface are both substantially continuously closed. 7. The base according to claim 2, wherein an upper end portion of the base is formed as a bulging portion that expands inward with respect to a lower portion of a cylindrical portion of the base, and the base has a reinforcing arrangement. A reinforced concrete building, wherein a reinforcing bar portion of the reinforcing bar structure is inclined inwardly in the bulging portion. 8. The base according to claim 1, wherein the base is used in combination of two bodies, and the two bodies have an abutting surface connected to each other, and the abutting surface is a vertical surface at the time of the connecting. A prefabricated reinforced concrete building characterized by the following.