JPH0376364B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for constructing structures from foamed resin blocks.

(Prior Art) Conventionally, for example, as shown in FIG.
Foamed resin blocks 1 were used as a heat insulating material to prevent roads from freezing due to temperature differences between the two.

This foamed resin block 1 is formed into a rectangular parallelepiped, and a large number of foamed resin blocks 1 are laid side by side on a leveled ground 3, and a foamed resin block layer 4 is formed.
form. Next, the road 5 was constructed by pouring asphalt 2 onto the upper surface of the foamed resin block layer 4.

There are also examples where stacked foamed resin blocks have been used as an alternative to retaining wall structures due to their self-supporting edges.

However, the foamed resin blocks conventionally used as embankments and free-standing walls for roads, etc. are not integrated into structures, but are simply lined up to form a foamed resin block layer, and the upper surface of this is paved. It was simply a matter of providing a structure.

Therefore, the mutual integrity of the foamed resin blocks is
This relies solely on the frictional resistance between the contact surface of the foamed resin block with the earth and sand load of the paint, and there is a risk that the foamed resin block will collapse due to external forces such as earthquakes and running water that are exerted on the embankment or free-standing wall.

In particular, when a structure is constructed on soft ground with a high groundwater level, buoyancy is generated in the foamed resin block in the upper part, so it is necessary to construct the structure above the ground surface. At this time, ground subsidence sometimes occurred due to the load of earth and sand from pavement, etc.

When such ground subsidence occurs, local deformation occurs in the soft ground, as shown in Figure 12.
When the hardness of the ground is not uniform and the ground is uneven, parts of the structure that correspond to subsidence or soft areas of the ground sink diagonally, causing deformation of the structure.

(Problems to be Solved by the Invention) The present invention has been made in view of the above circumstances, and it is possible to prevent the foamed resin blocks constituting the structure from moving in the horizontal direction as well as from shifting in the vertical direction. Therefore, it is an object of the present invention to provide a method of constructing a structure using foamed resin blocks that can hold the structure so that it will not collapse or deform even if an external force such as an earthquake is applied to the structure. be.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a system that ``when building a structure by stacking foamed resin blocks, straddles between the foamed resin blocks laid adjacent to each other on a plane. Then, by attaching a fastening fitting having bendable claws on each side by bending the claws and sticking them into the foamed resin blocks, adjacent foamed resin blocks are tightly connected and fixed to each other; Thereafter, a foamed resin block is placed on top of the block with a fastening metal fitting in between, and then the fastening metal is attached across the sides of the upper and lower foamed resin blocks, thereby tightening and fixing the upper and lower foamed resin blocks to each other. The gist of the patent is ``a method for constructing a construct using a foamed resin block, characterized in that the structure of the construct is maintained.''

Note that the term "foamed resin block" as used herein refers to a block made of foamed resin and molded into a specific shape.

Fixing means to fasten the foamed resin blocks to each other, or to stack the blocks in a mold without shifting from each other.

Holding refers to tightly connecting and fixing multiple foamed resin blocks to each other to prevent the foamed resin blocks of a structure formed into a specific shape from separating from each other, or from deforming or collapsing the structure of the structure. Say something.

Moreover, in the fastening metal fitting of the present invention, a hole for inserting a tension reinforcing bar for an anchor can also be provided in the center.

(Example) The present invention will be explained below with reference to the drawings.

First, the foamed resin block used in the method of this invention will be explained.

The one shown in FIG. 1 is a foamed resin block 1 with groove-shaped scales 6 provided on the sides thereof. Scale 6 indicates when building a structure by stacking blocks 1,
This makes it possible to clarify the mutual positional relationship of the foamed resin blocks, and to quickly and accurately perform processing such as cutting the foamed resin blocks 1 on site.

The one shown in Fig. 2 has a groove 7 for a drainage pipe on the top surface of the foamed resin block 1 at a location 1/4 width from the side so that the grooves of the foamed resin blocks 1 that are stacked together coincide with each other. It was established.

This is effective as a passage for horizontal binding material or as a drainage channel for a structure constructed by stacking the same blocks 1.

Incidentally, the scales 6 and grooves 7 of the foamed resin block 1 shown in FIGS. 1 and 2 are generally formed when the block 1 is molded.

The foamed resin block 1 shown in FIG. 3 contains a tensile resistance material 8 mixed therein. The foamed resin block 1 itself is considered to have low resistance to tensile force, and the above-mentioned procedure is made in consideration of the tensile force generated when the structure is constructed. As the tensile resistance material 8, wire mesh, netting, etc. can be considered.

Next, the fastening fitting used in the method of the present invention will be explained.

FIG. 4 is a plan view of the iron plate fastening fitting 9.
This fastening fitting 9 is a rectangular iron plate, and has claws 10 for fastening and fixing the foamed resin blocks to each other.
There are two on each side, eight locations in total.
However, the shape and number of claws of this fastening metal fitting 9 can be changed depending on the shape of the foamed resin block to be fastened and the location to be fastened. This nail 10 is
It can be easily bent with fingers, etc., and it is possible to tighten and fix the foamed resin blocks that are adjacent to each other on a plane and the foamed resin blocks that are stacked one above the other.

Figure 6 shows the fastening fitting 9 attached to the steel rod 1 for anchoring.
3, and the block 1 is shown fixed to each other.

In addition, in FIG. 7, a claw 1 is attached to the band iron 15 instead of the steel rod.
6 is provided, and the blocks 1 are fixed to each other by means of something that also serves as a fastening fitting.

Next, the method of the present invention will be explained using an example of constructing a free-standing wall.

8 and 9 show the precast concrete block 17 installed on the foamed resin block layer 14. FIG. That is, a precast concrete block 17 is placed on the ground 2, and sandy soil with good water permeability is spread to form a backfilling section 18.

Next, foam resin blocks 1 are stacked,
In the case of this example, a rectangular parallelepiped (120cm x 240cm x 50
cm) is used as the basic body of the foamed resin block 1.

In addition, as shown in FIG. 8, the foamed resin block 1
When stacking the blocks, a water-permeable material 19 made of synthetic fiber or synthetic resin may be inserted into the gap between the foamed resin block layer 14 and the precast concrete block 17.

In parallel with this work of stacking the foam resin blocks, the work of fastening the foam resin blocks together, the work of attaching the horizontal anchor device, and the work of backfilling the foam resin blocks are performed.

The work of joining the foamed resin blocks together is as follows.

That is, as shown in FIGS. 5 and 8, the claws 10 of the fastening metal fitting 9 are bent up and down, and the claws 10 of the fastening metal fitting 9 are pressed so as to straddle the adjacent foamed resin blocks 1, 1 on a plane, and the fastening Downward claw 1 of metal fitting 9
0 into the foamed resin blocks 1,1. After this, another foamed resin block 1, 1 is laid on top of it with the fastening metal fitting 9 interposed therebetween, and the foamed resin blocks 1, 1 on which the upward claws 10 of the fastening metal fitting 9 are laid are laid.
stab into. In this way, the adjacent foamed resin blocks 1, 1 are tightly connected and fixed by the fastening fittings 9. Thereby, it is possible to correspond to the force acting on the foamed resin block 1 in the horizontal direction, and it becomes possible to prevent displacement in the horizontal direction.

After this, the fastening metal fitting 9 with the claws 10 bent up and down is placed in an upright state, and is pressed so as to straddle the side surfaces of the foamed resin blocks 1, 1 stacked vertically. Attach by piercing the nail 10 into the side of the. Furthermore, the fastening fittings 9
By pressing the foamed resin blocks 1, 1 from the opposite side while holding them together, the claw 10 on the opposite side of the fastening metal fitting 9 is inserted between the sides of the pressed foamed resin blocks 1, 1. In this way, the fastening metal fittings 9 are interposed in an upright manner between the side surfaces of the foamed resin blocks 1, 1 stacked one above the other, and the foamed resin blocks 1, 1 stacked one above the other are tightly tied and fixed to each other. This allows the foamed resin block 1 to cope with the force acting in the vertical direction, and prevents vertical displacement.

As described above, according to the method of the present invention, the foamed resin blocks that are adjacent to each other in a plane and the foamed resin blocks that are stacked one above the other are connected and fixed to each other by the fastening metal fittings. It can handle forces acting on the structure horizontally, vertically, and even diagonally, and can reliably prevent vertical displacement and horizontal movement of the foamed resin block.

Next, as shown in FIGS. 5 and 8, a corrugated plate 20 is attached to the wall surface of the foamed resin block layer 14 made up of the foamed resin blocks 1 interconnected in this manner for the purpose of protecting the wall surface.

First, with the fastening metal fittings 9 with the claws 10 bent in one direction upright, the foamed resin blocks 1, 1 on the wall are
The mounting blocks are connected to each other so as to span between the sides. Next, the wall surface is covered with a corrugated sheet 20, and a space 21 for purposes such as drainage is provided between this wall surface and the corrugated sheet 20. Further, using the hole 11 in the center of the fastening metal fitting 9, insert the horizontal tension member 22 therein, and tighten the fastening metal fitting 9 and the corrugated plate 20 at the same time with the bolts 23 at the ends of the horizontal tension member 22. Fix it. The other end of the horizontal tension member 22 is fixed to the ground 2 or to a solid structure behind the wall formed by the foamed resin block layer 14.

Further, the corrugated plate 20 covering the wall surface of the foamed resin block layer 14 has its lower part connected to the lower precast concrete block 17 in FIG. 8 or 9.
Place it on the notch 25 of. Note that a keystone plate may be used instead of the corrugated plate 20.

In Figure 8, after pouring concrete on the upper deck,
The upper precast concrete block 28 is installed, and the corrugated plate 20 is fixed through bolt holes (not shown) in the upper and lower precast concrete blocks 28 and 17.

A self-supporting wall can be constructed in the manner described above.

In addition, when constructing a self-supporting wall by stacking foamed resin blocks, if the blocks are connected to each other with fastening fittings 9, due to their self-supporting nature, a structural facility such as a precast concrete block that presses the wall surface from the outside may be used. is basically unnecessary. However, it is necessary to cover the walls of the foamed resin blocks to protect them from direct sunlight and various human activities. In addition to the methods shown above, there are other ways to do this, such as applying paint or spraying with spraying materials, but if you cover it with precast concrete blocks or corrugated iron plates, it will be stronger by fixing the foamed resin blocks.

As shown in FIG. 10, a water-shielding sheet 29 may be placed on the underside of the concrete upper floor plate in order to protect the foamed resin block layer 14 from oil and the like.

Further, instead of the water-shielding sheet 29, a water-resistant sheet or a water-resistant material may be applied.

(Effects of the Invention) By adopting the above configuration, according to the construction method of the present invention, the foamed resin blocks that are adjacent to each other on the plane are tightly connected and fixed by the fastening metal fittings, and then the upper and lower foamed resin blocks are Since the side surfaces are fastened and fixed using fastening fittings, it is possible to cope with forces acting in the horizontal direction, vertical direction, and even diagonal direction of the structure. For this reason, it is possible to prevent the foamed resin blocks that make up the structure from moving in the horizontal direction as well as from shifting in the vertical direction, so that even if external forces such as earthquakes are applied to the structure, it will not collapse or deform. Constructs can be retained.

Further, according to the construction method of the present invention, the structure can be strongly integrated so as to be able to cope with forces acting in the horizontal direction, vertical direction, and even diagonal direction of the structure, and it is possible to prevent Even if there are dents in the ground or the hardness of the ground is uneven, the structure will not deform.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views showing a foamed resin block of the present invention, Figure 3 is a perspective view of a foamed resin block mixed with a tensile resistance material, and Figure 4 is a plan view showing a fastening fitting. Figure 5 is a cross-sectional view showing the state in which the fastening metal fittings are installed on the foamed resin block layer, Figure 6 is an enlarged cross-sectional view showing the state in which a steel rod is used as an anchor device, and Figure 7 is a cross-sectional view showing the state in which a steel rod is used as an anchor device. Fig. 8 is an enlarged sectional view showing the state in which the metal fittings are used; Fig. 8 is a sectional view showing the state in which precast concrete is installed on the foamed resin block layer; Fig. 9
The figure is a side view showing precast concrete.
Fig. 10 is a sectional view showing a state in which a water-blocking sheet for protecting the foamed resin block layer is placed on the upper surface of the foamed resin block layer, Fig. 11 is a sectional view showing a road constructed by the conventional construction method, FIG. 12 is a sectional view showing a deformed state of the construct. Explanation of symbols 1... Foamed resin block, 9... Fastening metal fittings, 10... Nail, 14... Foamed resin block layer.

Claims (1)

[Scope of Claims] 1. When constructing a structure by stacking foamed resin blocks, a fastener is provided with bendable claws on each side, spanning between the foamed resin blocks laid adjacent to each other on a flat surface. Adjacent foam resin blocks are tightly connected and fixed by bending the claws of the metal fittings and sticking them into the foam resin blocks, and then placing the foam resin blocks on top of the metal fittings by sandwiching the fastening metal fittings. Then, by attaching the fastening fittings across the sides of the upper and lower foamed resin blocks, the upper and lower foamed resin blocks are tightly connected and fixed to each other, and the structure of the structure is maintained. A method of constructing structures using characteristic foam resin blocks. 2. The method for constructing a structure using foamed resin blocks according to claim 1, wherein the fastening metal fittings are provided with a hole in the center for inserting a tension reinforcing bar for an anchor. 3. A method for constructing a structure using a foamed resin block according to claim 1 or 2, characterized in that the foamed resin block has a groove-like scale on its side. 4. A structure is constructed using the foamed resin block according to claim 1 or 2, characterized in that the foamed resin block has a groove for a drainage pipe at a position 1/4 width from the side of the upper surface. how to. 5. A method for constructing a structure using a foamed resin block according to claim 1 or 2, wherein the foamed resin block is mixed with a tensile material during the manufacturing process.