JP3696281B2 - Unit building foundation - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to the foundation of a unit building.
[0002]
[Background]
Conventionally, the foundation of a unit type building has been generally made of cast-in-place concrete. However, as disclosed in Japanese Patent Laid-Open No. 4-371615, at least one building unit that is a component of a unit type building is used. It is known that a plurality of PC (precast concrete) blocks having a length corresponding to one side in the horizontal direction are juxtaposed on the ground to form the basis of a unit type building.
[0003]
[Problems to be solved by the invention]
If the foundation is a PC block, the amount of foundation construction work at the construction site of the unit type building can be reduced, the work rate at the factory is increased, and the purpose of this is to reduce the cost. It will come true, but if the length of the block made of PC is the length corresponding to one side in the horizontal direction of at least one building unit, this dimension is large, so the block is large and heavy. For this reason, the problem that the handling becomes difficult at the time of transportation from a factory to a construction site or at the time of foundation construction work at a construction site arises.
[0004]
An object of the present invention is to provide a foundation for a unit type building in which a PC block can be reduced in size and weight and can be easily handled.
[0005]
[Means for Solving the Problems]
Basis of unitary building according to the present invention is a shape having a plurality of corners on the bottom surface, each of corner portions of the bottom surface of the building unit and the PC steel end at corresponding positions respectively constituting a unitary building Blocks are arranged, level members for adjusting the height level of the building unit are provided on the upper surfaces of these end blocks, and intermediate members are arranged between the end blocks, and the end blocks are attached to the base board. The intermediate member has a footing portion, a raised portion provided on the footing portion, and a coupling portion provided on both ends of the raised portion and placed on the base board. The thickness dimension of the portion is smaller than the thickness dimension of the base board, and the footing is formed with holes for pouring concrete .
[0006]
In the above, the level member may be a spacer, for example, but is preferably a bolt screwed into a nut embedded in the PC end block.
[0007]
In the present invention, a plurality of types of intermediate members having different lengths are prepared, and these are selectively used according to the horizontal length of the building unit.
[0008]
The intermediate member may be a PC intermediate block, or may be, for example, a plate-like cover attached to a lattice beam frame, or may be a plate alone.
[0009]
[Action]
In the present invention, the end blocks made of PC are arranged at positions corresponding to the respective corners of the building unit, and the end blocks are connected by an intermediate member, so each one of the PC blocks is short. Since it becomes longer and smaller and lighter in weight, it is easy to handle during transportation from the factory to the construction site and during foundation construction work at the construction site. Also, even if the intermediate member is a PC block, the length of this intermediate block is shorter than the length of one side in the horizontal direction of the building unit by the end blocks on both sides, so this intermediate block is also smaller and lighter It becomes easy to handle.
[0010]
In addition to the above, in the present invention, a level member for adjusting the height level of the building unit is provided on the upper surface of the PC end block arranged at a position corresponding to each corner of the building unit. The height level adjustment and level adjustment of the building unit can be performed by these level members.
[0011]
In addition, since there are multiple types of intermediate members with different lengths, even if there are various types of building units with different horizontal lengths, intermediate members of the type corresponding to the horizontal length are available. By using a member, it can respond to various types of building units.
[0012]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
Drawing 1 is a top view showing foundation 1 of a unit type building concerning this example. The foundation 1 is for mounting a total of four first-floor building units 2 constituting a unit type building. The foundation 1 has four types of PC end blocks 3 to 6 arranged at positions corresponding to the respective corners of the building unit 2 and three types of PCs that are intermediate members arranged between the PC end blocks. The intermediate blocks 7 to 9 are formed, and the PC end blocks 3 to 6 are placed on the concrete base boards 10 to 13.
[0013]
As shown in FIG. 2, the PC end block 3 includes a planar L-shaped main body 3A and enormous portions 3B and 3C at both ends of the main body 3A. The enormous portions 3B and 3C are opened outward. A groove 14 is formed.
[0014]
As shown in FIG. 3, the PC end block 4 is composed of a main body portion 4A having a straight line shape and enormous portions 4B and 4C at both ends of the main body portion 4A. The enormous portions 4B and 4C are opened outward. A groove 14 is provided.
[0015]
As shown in FIG. 4, the PC end block 5 is composed of a planar T-shaped main body portion 5A and enormous portions 5B to 5D which are a total of three end portions of the main body portion 5A. Is formed with a groove 14 opened outward.
[0016]
As shown in FIG. 5, the PC end block 6 includes a planar linear main body portion 6A and enormous portions 6B and 6C at both ends of the main body portion 6A, as in the end block 4, and the enormous portions 6B and 6C. Is formed with a groove 14 that opens outward, and the end block 6 is approximately twice as wide as the end block 4.
[0017]
As shown in FIG. 2, the end blocks 3 to 6 and the building unit 2 are joined by filling the sheath tube 15 embedded in the end blocks 3 to 6 with a grout material. This is done by inserting an anchor member 16 extending downward from the lower surface of the corner of the building unit 2. Further, level bolts 18 which are level members screwed to the nut 17 are provided on the upper surfaces of the end blocks 3 to 6, and the amount of protrusion from the upper surfaces of the end blocks 3 to 6 is changed by rotating operation. By placing the lower surface of the corner of the building unit 2 on the level bolt 18, the height level adjustment and the horizontal adjustment of the building unit 2 are performed.
[0018]
As is apparent from FIG. 1, the end block 3 is arranged at a position corresponding to one corner of the building unit 2, and the end blocks 4 and 5 are arranged adjacent to each other in the two building units 2. Since the end block 6 is arranged at a position corresponding to the four corners where the four building units 2 gather together, the end block 6 is shown in FIGS. Thus, one sheath tube 15 and level bolt 18 are provided in the end block 3, two in the end blocks 4 and 5, and four in the end block 6, respectively.
[0019]
As shown in FIG. 2, the PC-made intermediate block 7 has a footing portion 7A, an upright portion 7B, and enormous portions 7C provided at both ends (see FIG. 7) of the upright portion 7B. The portion 7C protrudes from the footing portion 7A by a predetermined length. A groove 14 is formed in the enormous portion 7C, and a hole 19 is provided in the footing portion 7A.
[0020]
The intermediate block 8 made of PC is different from the intermediate block 7 only in the length of the footing portion and the raised portion, and the other is the same as the intermediate block 7.
[0021]
As shown in FIG. 4, the PC intermediate block 9 also has a footing portion 9A, a raised portion 9B, and a huge portion 9C provided at both ends of the raised portion 9B. The huge portion 9C has a predetermined length from the footing portion 9A. Protrusively protruding. Grooves 9C are provided with grooves 14 and holes 19 are formed in the footing part 9A. In addition, the vertical dimension of the footing part of the intermediate blocks 7-9 is smaller than the vertical dimension of the base boards 10-13.
[0022]
The end blocks 3-6 and intermediate blocks 7-9 described above are produced in a concrete factory and transported to the construction site of a unit building. The construction work of the foundation 1 at this construction site is performed as follows. The root cutting work is performed at the place where the foundation 1 which is the fabric foundation is formed, and the concrete is thrown into the root cutting bottom, or the root cutting bottom is hardened with a ground improvement agent. Next, base boards 10 to 13 are placed at positions corresponding to the respective corners of the building unit 2, and predetermined end blocks 3 to 6 are placed thereon. The intermediate blocks 7 to 9 are arranged between the end blocks, and this arrangement work is performed by the edge of the base boards 10 to 13 protruding from the end blocks 3 to 6 at the end of the intermediate blocks 7 to 9. Place it on top. Thereby, the height positions of the end blocks 3 to 6 and the intermediate blocks 7 to 9 coincide.
[0023]
Next, the concrete slurry is injected into the holes 19 formed in the footing portions of the intermediate blocks 7 to 9, and this occurs between the footing portion and the discarded concrete, or between the footing portion and the ground improvement agent. Fill the gaps. Further, as shown in FIG. 6, the reinforcing bar 20 is inserted into the grooves 14 of the end blocks 3 to 6 and the grooves 14 of the intermediate blocks 7 to 9 which are in communication with each other, and the concrete slurry 21. Inject. As a result, the end blocks 3 to 6 and the intermediate blocks 7 to 9 are coupled.
[0024]
The frame member 22 shown in FIGS. 2 and 6 is placed on the upper surface of the end blocks 3 to 6 in the region where the sheath tube 15 and the level bolt 18 are provided, and the sheath tube 15 and the level bolt 18 are placed inside the frame member 22. Insert. The frame member 22 is made of an elastic member such as rubber. Thereafter, a grout material 25 that is mortar is injected into the sheath tube 15, and the grout material 25 is put to the upper surface level of the frame member 22.
[0025]
Next, each building unit 2 is lifted by a crane, and these building units 2 are placed on the end blocks 3 to 6 and the intermediate blocks 7 to 9 while the anchor member 16 is inserted into the sheath tube 15. When the building unit 2 is suspended by the crane as described above, the level bolts 18 are rotated to adjust the amount of upward protrusion from the end blocks 3 to 6, and the building unit 2 is placed on the level bolts 18. To adjust the height level and level of the building unit 2.
[0026]
Moreover, in the location where the corner parts of the some building unit 2 adjoin, as shown in FIG. 6, the connection board 24 provided with the some pin 23 was previously mounted on the upper surface of the edge part blocks 4-6, and these The building unit 2 is suspended by a crane while inserting holes in each corner into the pin 23. Thereby, a plurality of building units 2 adjacent to each other are positioned at a predetermined interval.
[0027]
In the above, the length of the intermediate block 7 is L ₁ as shown in FIG. 7, and intermediate blocks 27 and 37 having lengths L ₂ and L ₃ are prepared. As shown in FIG. 1, the intermediate block 7 is used when the length of one side in the horizontal direction of the building unit 2 is A. When building a unit type building using a building unit whose length is longer than A, Uses the intermediate block 27 or 37.
Similarly to the intermediate block 7, a plurality of types having different lengths are prepared for the intermediate block 9 and are selectively used from these.
[0028]
The length of the other horizontal side of the building unit 2 is B, and when building a unit type building using building units having different lengths in this direction, another intermediate having a different length from the intermediate block 8 is used. Use blocks.
[0029]
According to the present embodiment described above, the PC blocks forming the foundation of the unit type building are arranged between the end blocks 3 to 6 disposed at positions corresponding to the respective corners of the building unit 2 and between the end blocks. Are divided into intermediate blocks 7-9, and these end blocks 3-6 and intermediate blocks 7-9 are shorter than the horizontal length of the building unit 2, so that each is small and lightweight. As a result, when it is transported from the factory to the construction site and when the foundation 1 is formed by combining these at the construction site, the handling becomes easy.
[0030]
Further, level bolts 18 as level members are provided on the upper surfaces of the end blocks 3 to 6 arranged at positions corresponding to the respective corners of the building unit 2. The height level and level of the building unit 2 can be adjusted. Further, since the level bolt 18 can be finely adjusted by rotating the nut 17, accurate height level adjustment and horizontal adjustment can be performed.
[0031]
Further, in the present embodiment, since a plurality of types having different lengths are prepared for the intermediate blocks 7 to 9, when building a unit type building using building units having different horizontal lengths, By replacing the end blocks 3 to 6 in common and replacing only the intermediate block with one having an appropriate length, a predetermined foundation can be formed.
[0032]
FIG. 8 shows a PC end block 43 and an intermediate member 47 arranged between the end blocks according to another embodiment. In the end blocks 3 to 6 in the embodiment, grout material is injected and the anchor member 16 extending from the building unit 2 is inserted in order to connect the end blocks 3 to 6 and the building unit 2. Although the sheath tube 15 is provided, the end block 43 made of PC in the embodiment of FIG. 8 is provided with an anchor bolt 56 protruding upward from the upper surface, and the end block 43 and the building unit are connected by the anchor bolt 56. It is supposed to be combined.
[0033]
Further, the intermediate member 47 in FIG. 8 is configured to include a lattice beam-like frame 63 in which upper and lower chord members 61A and 61B, a longitudinal member 62A, and a diagonal member 62B are combined, and a plate-like cover 64. Are connected to the end block 43 by bolts 65, and the cover 64 is attached to the frame 63 by bolts 66. The cover 64 is made of, for example, a cement board, a fiber reinforced concrete board, a fiber reinforced plastic board, a stainless steel board, or the like.
[0034]
The present invention can also be applied to a case where a building unit, which is a component of a unit-type building, has a frame formed of columns and beams, and a so-called wall in which a plurality of panels such as a wall panel and a floor panel are combined. It can also be applied to a formula unit.
[0035]
【The invention's effect】
According to the present invention, the foundation is formed by a PC end block disposed at a position corresponding to each corner of the building unit, and an intermediate member disposed between the end blocks. Since it is shorter than the horizontal length, these blocks can be made smaller and lighter, which makes it easier to handle during transportation from the factory to the construction site and during foundation construction work at the construction site. it can. In addition, since the level member is provided on the upper surface of each end block, the height level adjustment and the horizontal adjustment of the building unit can be performed.
[Brief description of the drawings]
FIG. 1 is a plan view showing a foundation according to an embodiment of the present invention. FIG. 2 is a perspective view showing a first end block and an intermediate member shown in FIG.
FIG. 3 is a perspective view showing a second end block shown in FIG. 1;
FIG. 4 is a perspective view showing a third end block and an intermediate member shown in FIG. 1;
FIG. 5 is a perspective view illustrating a fourth end block shown in FIG. 1;
FIG. 6 is a longitudinal sectional view of an essential part showing after foundation construction.
FIG. 7 is a plan view showing intermediate members prepared in a plurality of types having different lengths.
FIG. 8 is a perspective view showing another embodiment of the end block and the intermediate member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Foundation 2 Building unit 3-6, 43 PC end blocks 7-9, 27, 37 PC intermediate block 10-13 which is an intermediate member Base board 15 Sheath pipe 16 Anchor member 18 Level bolt 47 which is a level member Intermediate Element

Claims (4)

A shape having a plurality of corners on the bottom, PC manufactured by end blocks at corresponding positions respectively each corner portions is disposed in the bottom surface of the building unit which constitutes a unitary building, these end blocks A level member for adjusting the height level of the building unit is provided on the upper surface, and an intermediate member is disposed between the end blocks ,
The end block is disposed on the base board,
The intermediate member has a footing portion, a raised portion provided in the footing portion, and a coupling portion provided on both ends of the raised portion and placed on the base board,
The thickness dimension of the footing part is smaller than the thickness dimension of the base board,
A foundation of a unit type building, wherein the footing is formed with a hole for pouring concrete . The foundation of a unit building according to claim 1, wherein the level member is a bolt screwed into a nut embedded in the end block made of PC. In the foundation of the unit type building according to claim 1 or 2, a plurality of kinds of intermediate members having different lengths are prepared, and these are selectively used according to the horizontal length of the building unit. The foundation of a unit type building characterized by The foundation of a unit type building according to any one of claims 1 to 3, wherein the intermediate member is a PC intermediate block.

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