JP2022189075A - Civil engineering structure - Google Patents

Abstract

To provide a civil engineering structure with a high air gap rate and a high creep property, capable of being assembled manually using a small number of kinds of materials.SOLUTION: A civil engineering structure includes: a horizontal beam 40; concrete pillar materials 30 above and below the beam 40; and a tube member 50. The beam 40 has a central beam and upright parts on both ends. The multiple beams 40 are arranged around the upper and lower ends of the pillar material 30 so that the upright parts are in contact with the upper and lower ends of the pillar material 30. The tube member 50 accommodates the upper end of the pillar material 30 on the lower side and the upright part abutting the upper end, and the lower end of the pillar material 30 on the upper side and the upright part abutting the lower end.SELECTED DRAWING: Figure 8

Description

TECHNICAL FIELD The present invention relates to a civil engineering structure (framework structure) mainly used in civil engineering work and the like, and more particularly to a civil engineering structure useful for forming water tanks, dam structures, embankments, and the like.

A storage facility is known in which a rainwater storage space is formed by installing a civil engineering structure with a high porosity in which a large number of blocks of a predetermined shape are piled up in a depression and backfilling it with soil (Patent Documents 1 to 3). Similar civil engineering structures can also be used to form embankments and the like.

Japanese Unexamined Patent Application Publication No. 2004-211316 Japanese Patent Application Laid-Open No. 2010-048010 JP 2018-131794 A

Conventional civil engineering structures, which are made of plastic blocks, have problems with resistance to upward and lateral earth pressures and creep deformation. When such blocks are made of concrete, there are problems in construction and the like. The applicant has so far studied civil engineering structures made of rigid materials such as concrete, but there has been a desire for civil engineering structures that are easy to construct and have higher strength.

In this application:
a plurality of horizontal members having a plurality of horizontal beams;
a plurality of pillars made of concrete above and below the beam;
having a tubular material,
A civil engineering structure in which the upper and lower horizontal members are separated vertically by the column members,
The beam member has a central beam portion and standing portions at both ends thereof,
a plurality of the beams are arranged around the upper and lower ends of the pillars, and the upright portions are brought into contact with the upper and lower ends of the pillars;
Disclosed is a civil engineering structure in which the upper end of the lower pillar and the rising portion in contact with the upper end, and the lower end of the upper pillar and the rising portion in contact with the lower end are accommodated in the cylindrical member. be done.

1 shows a civil engineering structure 10 according to one embodiment of the present invention. An exemplary post 30 is shown. An exemplary beam 40 is shown. (a) is a perspective view, (b) is a plan view, and (c) is a front view. An exemplary tube 50 is shown. (a) is a perspective view, and (b) is a side view. Exemplary base 60, upper beam core 70 and roof 80 are shown. 1 shows an assembly method (plan view) of an exemplary civil engineering structure 10. FIG. 1 shows a method of assembling an exemplary civil engineering structure 10 (side sectional view and perspective view). Fig. 2 shows an assembly method (enlarged side sectional view) of an exemplary civil engineering structure 10; An exemplary civil engineering structure 10 is shown. An exemplary civil engineering structure 10 is shown. 4 shows a modified form of usage of the beam 40. FIG. A modified form of the beam 40 is shown. (a) is a plan view, and (b) is a side view. A modified form of the beam 40 is shown. (a) is a side view, and (b) is a sectional view. A modified form of the beam 40 is shown. (a) is a side view, and (b) is a sectional view.

FIG. 1 shows a civil engineering structure 10 according to one embodiment of the invention. A storage tank 2 for rainwater or the like can be formed by installing a civil engineering structure 10 in a depression 1 and backfilling it with soil. The civil engineering structure 10 may be installed under a road surface or under a house and used as embankment, or may be installed at the bottom of a dam to form a dam structure. The civil engineering structure 10 may have a top plate 5 for preventing sinking, and a wall plate 7 for preventing entrance of earth and sand at the sides. The civil engineering structure 10 can also be used as a ground structure installed on the ground.

The civil engineering structure 10 has a plurality of horizontal members 20 and a plurality of pillars 30 , and the horizontal members 20 are separated vertically by the pillars 30 . As will be described later, the horizontal member 20 is formed of a plurality of beam members 40 , and the column members 30 and the beam members 40 are connected using tubular members 50 . The pillar material 30 is preferably made of concrete. Concrete includes rigid materials such as reinforced concrete. The beam member 40 and the cylindrical member 50 are preferably made of metal (eg, steel) or plastic (eg, vinyl chloride).

FIG. 2 shows a post 30 (eg 80×80×450 mm). The top and bottom ends of the pillar material 30 may be flat. The column member 30 preferably has bolt holes 31 near the upper and lower ends.

FIG. 3 shows an exemplary beam 40. As shown in FIG. The beam member 40 has a beam portion 41 (for example, 820×50 mm) and connection portions 42 at both ends of the beam portion 41 . The connecting portion 42 has an upright portion 43 (eg, 60×50 mm) and a locking portion 44 (eg, 30×50 mm). The upright portion 43 preferably has a bolt hole 45 corresponding to the bolt hole 31 .

FIG. 4 shows an exemplary tube 50. As shown in FIG. The tubular member 50 is a hollow tubular body having a through hole 51 . The cylindrical member 50 preferably has bolt holes 52 corresponding to the bolt holes 31 .

The beam member 40 and/or the tubular member 50 are preferably made of a viscoelastic material such as metal or plastic, and particularly preferably steel. The beam member 40 and/or the tubular member 50 may have a thickness of, for example, 1-3 m.

The civil engineering structure 10 further includes a base 60 (eg, 200 x 200 x 130 mm), a beam core 70 (eg, 800 x 50 x 100 mm), and a ceiling member 80 (eg, 500 x 500 x 100 mm) as shown in FIG. Good to have. The upper surface of the base 60 and the lower surface of the top member 80 preferably have recesses 61 and 81 . These should be made of concrete.

6-8 show how the civil engineering structure 10 is assembled. The assembly procedure is as follows.
A: A plurality of bases 60 are arranged vertically and horizontally at predetermined intervals.
B: Suspend (spread) the beams 40 between the adjacent bases 60 . The connecting portion 42 of each beam 40 is inserted into the recess 61 into which the post 30 is inserted.
C: Suspend the lower beam 40 between adjacent pillars 30 . At this time, the upright portions 43 are brought into contact with the upper ends of the pillars 30 from all sides, and the locking portions 44 of the respective beams 40 are brought into contact with the upper surfaces of the pillars 30 .
D: The cylindrical member 50 is put on the upper end of the column member 30 and the standing portion 43 .
E: Suspend the upper beam 40 between adjacent cylindrical members 50 , and insert the pillars 30 between the connecting portions 42 of the beams 40 . It is preferable that the standing portion 43 is brought into contact with the lower end of the pillar 30 and the engaging portion 44 is brought into contact with the lower surface of the pillar 30 .
After that, repeat steps C to E.

In the civil engineering structure 10 assembled as described above, the four connecting portions 42 engaged with the upper ends of the lower column members 30 and the upper ends thereof, and the four connecting portions engaged with the lower ends and the lower ends of the upper column members 30 42 is accommodated in the tubular member 50 (FIG. 8). The pillar 30 and the beam 40 are firmly fixed by the weight from the upper pillar 30 and the constraint of the cylindrical member 50 . It is preferable that there are no gaps between the column member 30, the connecting portion 42, and the cylindrical member 50. If the bolt B is passed through the bolt holes 31, 45, 52 and fixed, it can be fixed more firmly. The bolting may be omitted by lengthening the tubular member 50 and the standing portion 43 . A pair of beam members 40 in the same horizontal plane constitute one layer of horizontal member 20 .

As shown in FIG. 9, it is preferable to insert a beam core 70 between a pair of beam members 40 in the uppermost layer for reinforcement, and arrange top members, sheets, and the like thereon. A ceiling member 80 may be used as shown in FIG. The whole is stabilized by the column material 30 inserted into the recess 81 and the beam material 40 below. It is preferable to arrange an outer wall such as PP on the outer periphery of the civil engineering structure 10 .

The civil engineering structure 10 of the present invention can form a strong structure with high creep resistance and high porosity using only a small number of kinds of materials and only by hand work. It can be fixed firmly in the vertical direction. Creep resistance and easiness of assembly are improved by using the concrete column material 30, the beam material 40 such as steel material, and the cylindrical material 50. FIG. If a concrete plate similar to the beam core 70 is placed between the pair of beams 40 in the lower layer, the beam can be further reinforced.

As shown in FIG. 11, multiple beams 40 are stacked, or the beams 40 are press-worked to form recesses 46 as shown in FIG. As shown in 14, an L-shaped portion may be provided on the entire beam portion 41 or near the center thereof (or L-shaped steel may be used on the entire beam portion 41 or near the center thereof) for reinforcement.

Although an example in which the beams 40 abut on the four sides of the rectangular post 30 has been shown, it is possible to change the number of the beams 40 by using triangular or hexagonal post 30 . The dimensions, shapes, arrangements, numbers, materials, etc. of the civil engineering structure 10 and its elements described in the above embodiment are examples, and other aspects are also possible.

Reference Signs List 1 Depression 2 Storage tank 5 Top plate 7 Wall plate 10 Civil engineering structure 20 Horizontal member 30 Column material 31 Bolt hole 40 Beam member 41 Beam portion 42 Connecting portion 43 Standing portion 44 Locking portion 45 Bolt hole 46 Recessed portion 47 Cylindrical portion 48 L-shaped portion 50... Cylindrical member 51... Through hole 52... Bolt hole 60... Base 61... Recess 70... Beam core 80... Top plate 81... Recess 61, 81 ... recessed part

Claims (6)

a plurality of horizontal members having a plurality of horizontal beams;
a plurality of pillars made of concrete above and below the beam;
having a tubular material,
A civil engineering structure in which the upper and lower horizontal members are separated vertically by the column members,
The beam member has a central beam portion and standing portions at both ends thereof,
a plurality of the beams are arranged around the upper and lower ends of the pillars, and the upright portions are brought into contact with the upper and lower ends of the pillars;
A civil engineering structure in which an upper end of the lower pillar and the rising portion in contact with the upper end, and a lower end of the upper pillar and the rising portion in contact with the lower end are accommodated in the cylindrical member. 2. The civil engineering structure according to claim 1, wherein said standing portion has locking portions capable of coming into contact with upper and lower surfaces of said column member. bolting the upper end of the pillar on the lower side and the upright portion and the cylindrical member that abut on the upper end;
2. The civil engineering structure according to claim 1, wherein the lower end of the upper pillar member and the upright portion and the cylindrical member that contact the lower end are bolted. 2. The civil engineering structure according to claim 1, wherein said beam member and/or said tubular member is made of metal or vinyl chloride. further comprising a base having a recess capable of accommodating the lower end of the pillar,
2. The civil engineering structure according to claim 1, wherein said foundation is arranged at the bottom. 2. The civil engineering structure of claim 1, wherein said beam has a concave portion, a cylindrical portion, or an L-shaped portion for improving strength.

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