JP3485521B2 - Construction method of concrete structure and its structure - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for constructing a concrete structure for construction and the structure. More specifically, a rib is provided in the width direction of the panel body, and a panel body having a heat insulating material attached to the rib and a panel body having no heat insulating material are mutually coupled by a coupling body, and the panel body thus coupled is coupled. The present invention relates to a method of constructing a concrete structure in which concrete is poured between them and the panel body is integrated, and a space portion having an air layer is provided between ribs of a heat insulating material attachment portion, and a structure of the structure.

[0002]

2. Description of the Related Art Generally, in the case of constructing various structures using concrete, for example, a foundation such as a foundation, a wall, or a pillar, a formwork such as wood is installed in advance in accordance with the structure. When concrete was poured into the mold and the mold was removed after the concrete had dried and solidified, a hardened concrete body was formed as its structure. In this case, reinforcing bars are usually added as necessary to secure the strength of the concrete body.

As a concrete body, its surface may be finished and used as it is, or a building material may be added to the concrete body to construct a building, and the construction differs depending on the building. This method is a method generally used in the past, and the setting and removal of the formwork are manually performed on site.

In the structure constructed in this way, in order to have an air layer in the outer wall, conventionally, a concrete structure is formed, a heat insulating material is first attached, a body tab is attached, and finally, This was done in the process of applying exterior finishing materials. In order to perform this series of construction, formwork, rebar work,
Nine occupations such as concrete work, dismantling work, heat insulating material pasting work, carpenter, plastering work, painting work, sealing and waterproofing work were required.

Recently, as one of the methods for forming a concrete structure, a method has been proposed in which the plate-shaped frame itself is integrated with concrete as a part of the structure without using the above-mentioned formwork. Has been done. For example, there is JP-A-59-10640.

According to this method, a flat concrete formwork panel which is a part of a structure is formed in advance, and the panels are arranged at intervals in the thickness direction and also in the vertical direction to form a frame. , After connecting the panels with a connecting tool,
It is a method of pouring concrete to form a structure.
In this example, a synthetic resin foam layer is attached as a heat insulating material to the back surface of the panel, form panel panels having a C-shaped cross section are further arranged so as to face each other, and a fixture is joined across the two joints. ing. The vertical position is regulated by a spacer.

As another example, Japanese Examined Patent Publication No. 62-4496 is one of the construction methods in which concrete is poured between molding plates in the same manner as described above, but it is proposed that the form of the fixing tool is changed. That is, a hook is provided on opposing concrete molding plates, and a wire-like connector is joined to the hooks by straddling the molding plates above and below and between the molding plates facing each other. It is known to pour concrete between the frames in this manner and to integrate them with the frames to form a structure.

[0008]

By the way, the conventional method is not economically, technically, and satisfactory in working efficiency. That is, in the former, the molds must be installed and removed on-site and manually, which requires man-hours for setting the molds, resulting in a problem in work efficiency.
Further, until the poured concrete has dried and hardened, the work such as finishing the surface cannot be performed, and further considering the time for removing the formwork, the construction period becomes long, which is an economical problem.

Further, in order to fix the mold, it is necessary to reinforce the outer circumference, and a work space is required. There was a risk that the quality of the structure would depend on the work environment. Further, since the structure is the poured concrete itself, there is a problem of lack of compactness and strength, and the material of the concrete itself is often affected by on-site work, which may result in a defective structure.

The conventional method of providing a concrete structure with ventilation or a heat storage layer is to provide a heat insulating layer on the exposed surface of the structure, which is the so-called external heat insulation or heat storage layer construction method. However, this method requires many steps, a dew point is generated in the heat insulating layer, moisture is accumulated in the heat insulating layer, and as a result, the outer heat insulating effect is significantly reduced. Next, in the latter case, even if the formwork is made of concrete and integrated, the conventional formwork is still used as a plate-shaped flat panel, and the structure itself has not been strengthened.

Therefore, the joint between the panel and the concrete poured into it becomes a straight surface, and there is a problem in terms of joint strength. Since the panel itself is also a flat plate, there is a problem in bending strength, and especially thin ones may be chipped and damaged, which is a problem in terms of the technical structure. Furthermore, since it does not have ribs, it does not form an air layer with the heat insulating material, and if an air layer is required, it is provided outside in a separate process after the structure is completed as usual. I had to.

Various connecting tools for connecting the panels have been proposed, but each has a plurality of parts as means for connecting the panels in the thickness direction and the width direction, and the shape thereof is complicated. Further, the method of attaching the body cover and applying the finishing material was to use metal nails and bolts. For this reason, the metallic coupler has a small heat transmission specific resistance, which causes a thermal bridge (heat conduction).

As described above, it has been difficult for the conventional metal coupler to perform complete outer heat insulation, ventilation, and heat storage layer construction on the concrete structure. For this reason, it takes a lot of time for the mounting work, the construction period cannot be shortened as expected, and it tends to be economically expensive.

The present invention has been made based on such a technical background, and relates to the latter method of pouring concrete between panels to integrate them to form a concrete structure, which is easy to assemble and strengthens the strength. The purpose of the present invention is to provide a concrete structure for construction that does not require surface finishing and has excellent heat insulation and air permeability.

[0015]

In order to achieve the above object, the present invention employs the following means. The construction method of the concrete structure of the present invention is performed by high pressure pressing.
A shaped concrete body, a panel body formed by linearly arranging a plurality of ribs in the width direction on the back surface, and heat insulation arranged across the thickness direction tip portions of the plurality of ribs of the panel body. Material, a combination body that mutually connects the ribs in the thickness direction and the panel bodies arranged at intervals and the panel bodies arranged in the up-down direction, and the panel combined by the combination body A method for constructing a concrete structure in which concrete is poured between the body and the other panel body, wherein the ribs are substantially equal in the longitudinal direction of the panel body.
Arranged symmetrically at intervals, the heat insulating material is arranged across the thickness direction tip portions of the plurality of ribs of the panel body,
When the concrete is poured, a space having an air layer is formed between the ribs of the panel body covered with the heat insulating material.

The concrete structure of the present invention is a building structure, wherein a panel body is formed by linearly forming a plurality of ribs in the width direction on the back surface, and the thickness of the plurality of ribs of the panel body. A heat insulating material arranged across the front end portion in the direction, and a combined body for mutually coupling the panel body and the panel body arranged in the up and down direction with the ribs opposed to each other in the thickness direction, consists of a concrete is poured between the other panel body apart from the heat insulating material in time for the panel member joined with said conjugate, said panel member
Is a concrete body formed by high-pressure pressing
Yes, the ribs are arranged at substantially equal intervals in the longitudinal direction of the panel body.
Spaces having an air layer are formed between the ribs of the panel body, which are symmetrically arranged and when the concrete is poured, are covered with the heat insulating material.

If the panel body is a concrete body formed by high-pressure press working, the strength is secured and it is more effective. The ribs may be provided with engaging portions for engaging the combined body at both ends in the width direction. Further, it is preferable that the combined body has a protrusion for engaging with the engagement portion of the panel body and has a substantially H-shape. The combined body is preferably made of integrally molded synthetic resin. This synthetic resin has concrete and thermal conductivity,
It may be a mixture of high-strength fibers or the like in order to make the coefficients of thermal expansion match as much as possible.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The panel body 1 shown in FIG. 1 is a basic element of the present invention, is a unit element of a structure, and is made of concrete by high pressure pressing. In describing the panel body 1, it is defined as follows. That is, as shown in FIG. 1, (a) of the panel body 1 is in the longitudinal direction,
(B) is the width direction and (C) is the thickness direction.

This panel body 1 is made of high-pressure press-molded thin-wall concrete. For example, in this example, if the size is 600 mm in length, 300 mm in width, 30 mm in thickness and about 8 kg in mass, , Easy to carry by hand. FIG. 1 shows the exposed surface A which is the outer surface of the panel body 1.
And the back surface B is shown. The panel body 1 forms the outer wall of the structure, and is required to have a certain quality and strength. As a result of the experiment, the usefulness of the high pressure press molding has been proved. Since concrete strength is determined by the water-cement ratio, the water-cement ratio is generally made as small as possible.

In the case of a high-pressure press, water and air are squeezed out at the time of pressing, so that there is an advantage that the water-cement ratio becomes small after pressing even if the water-cement ratio becomes large in the initial composition. Experimental results show that water cement ratio is 50, 40, 30%
The compressive strength of the mortar product made with is a pressing force of 5 N / m.
m ² , 65, 68, 70 N / mm ² (without press, 3
5,40,50N / mm ²⁾ and improved, and further improved 80,82,83N / mm ² and compressive strength even at a press force 10 N / mm ^2.

The panel body 1 is densified by the high pressure press working so that the quality is constant. The molding is performed by applying a pressing force of about 10 N / mm ² . After molding, curing is completed through indoor curing and steam curing processes. As described above, the panel body 1 has a compressive strength of 80 N / mm ² or more and a bending strength of 10 N / mm ² or more. If the panel body 1 is molded and then finished by painting or the like, it is not necessary to finish the exterior later.

The panel body 1 corresponding to the inside of the wall
Putting Bincho charcoal, diatomaceous earth, zeolite, activated carbon and other materials with high adsorption and humidity control into (8) will generate organic gas in the room to keep comfortable humidity and construct a healthy room. You can The surface A of the panel body 1 in FIG. 1 is a flat wall surface, which is the surface of the structure. The back surface B of the panel body 1 shown in FIG. 2 is an inner part of the structure, and has the rib 2 which is a feature of the present invention. The rib 2 is a protrusion protruding inward in the thickness direction with respect to the panel surface and having a rounded root. The rib 2 is tapered from the root to the tip.

Further, the ribs 2 are linearly formed in the panel body 1 continuously in the width direction, and a plurality of ribs 2 are provided at substantially equal intervals. Although it is provided in a linear shape in the embodiment, it may be a linear shape having an angle or a curved shape. Further, in the drawings of the embodiments, the rib 2 has a thin shape, but may have a large thickness. By providing the ribs 2 in this way, the surface area of the panel surface having the ribs 2 increases, and the joining force (adhesive force) with the poured concrete increases. Further, by providing the ribs 2 on the panel body 1, the bending strength of the panel body 1 as a single body is increased, and there is no possibility of damaging the panel body 1 during work.

The provision of the ribs 2 also serves to improve the durability against a disaster such as an earthquake after the concrete structure is formed. When the concrete structure is completed, the ribs 2 are buried inside the concrete structure and therefore are not visible. Further, the rib 2 is formed with a notch-shaped engaging portion 4 for attaching a later-described coupling body, that is, the coupling tool 3, on both sides in the width direction.

The engaging portion 4 is formed in conformity with the shape of the fitting 3 to be attached. That is, the engaging portion 4 is provided with a notch surface in both sides in the central portion of the panel body 1 as a recess 6 parallel to the thickness direction, and the protrusion 5 of the coupling 3 is inserted into the lower portion of the recess 6. A hole 11 is provided (see FIG. 2). Therefore, the coupler 3 is attached in parallel to the thickness direction of the panel body 1.

A recess 7 is formed at the end of the panel body 1 in the longitudinal direction with the cutout surface opening in the thickness direction at an angle of 45 degrees with respect to the other surface. A hole 11 is provided at the bottom of 7. Therefore, the coupling tool 3 is attached at an angle of 45 degrees in the thickness direction of the panel body 1.

Since the panel body 1 is subjected to high-precision high-pressure press molding as described above, the dimensional accuracy is good, for example, within ± 0.25 mm. Therefore, the dimension of the engaging portion 4 is also highly accurate. Since the ribs 2 are arranged symmetrically with respect to the panel body 1, the ribs 2 have the same structure even if the direction in the width direction is changed. Therefore, the work can be performed on site without worrying about the orientation of the panel body 1.

Further, as shown in FIG. 3, the panel body 1 incorporated in the interior of a structure such as a building can be constituted by a panel body 8 having no ribs 2. In this case, it can be a thin, lightweight panel, the material used being charcoal, diatomaceous earth, zeolite, concrete containing sodium silicate. Therefore, it is effective in making the indoor environment comfortable such as humidity control and deodorization. However, since it has a particularly high water absorption rate, it cannot be used in places such as outer walls where it is exposed to rainwater or water. Molding is carried out by applying a pressing force of about 5 N / mm ² , and curing through room curing and steam curing processes. The compressive strength of the product is 40 N / mm ² or more.

When inserting the heat insulating material 9, as shown in FIG. 2, the heat insulating material 9 is attached across the tip portions of the plurality of ribs 2. The heat insulating material 9 is made of, for example, a synthetic resin foam. The heat insulating material 9 may be attached to the panel body 1 in advance, or may be attached later according to the current situation at the site. Moreover, when constructing in a cold region where the climate is severe, the heat insulating material 9 may be thickened.

By attaching this heat insulating material 9, a gap corresponding to the height of the rib 2 is formed between the panel body 1 and the wall surface, that is, a ventilation layer 10 which is an air layer. Therefore, the completed concrete structure has good heat insulation and air permeability. The ventilation layer 10 serves as a ventilation layer for removing harmful moisture in the heat insulating material 9.

The wall portion of a structure such as a building is constructed by stacking the panel bodies 1 in the thickness direction, the longitudinal direction and the vertical direction to form a frame and pouring concrete. A coupling tool 3 which is astride one another
Attach. As shown in FIG. 4, this coupling tool 3 is substantially H
It is in the shape of a letter and has two protrusions 5 outwardly at both ends of the flat plate. This protrusion 5 is the panel body 1
The size is set so that it can be inserted into the hole 11.

Although the material of the connector 3 is not specified, the connector 3 of this embodiment is made of synthetic resin. In this case, when a structure is formed with the panel member 1 as a base by the connector 3 made of synthetic resin, heat penetration from the outer wall can be suppressed. What is called engineering plastic is desirable as the kind of synthetic resin, but glass fiber, metal fiber, carbon fiber, etc. are used to increase mechanical strength and to match the coefficient of thermal expansion with concrete as much as possible. The high strength fiber or the like may be mixed.

When the coupling tool 3 is attached to the panel body 1, the protrusion 5 of the coupling tool 3 is pushed into the hole 11 of the engaging part 4 of the panel body 1. This pushing amount is the panel body 1
It is half the width of the fitting when pushed into. The frame is completed by pushing and connecting the connecting members 3 to each of the panel bodies 1 facing each other in the thickness direction and across the panel bodies 1 in the vertical direction. The number of attachments of the coupling tool 3 may be selected according to the structure of the building, but if the number is large, the strength can be increased. More specifically, the panel body 1 and the heat insulating material 9 are vertically arranged while being adhered with mortar joints, and the panel bodies 1 are coupled to each other by the coupling tool 3.

Since the coupling tool 3 has a substantially H-shape having a protrusion 5 for engaging with the engaging portion 4 of the panel body 1, the engaging portion 4 of the panel bodies 1 arranged side by side is also mortar. And the protrusion 5 of the connector 3 is inserted. In this way, an integral formwork can be easily made. The coupler 3 may be installed on all the engaging portions 4, but it is sufficient if it is installed in a range that can withstand the lateral pressure of concrete pouring. In order to prevent water from entering from outside through the connector 3, the outer bottom 12 has an oblique slope.

The central part has a projecting shape so as to block the flow of water, has a concave recess 13 for fitting a reinforcing bar in the upper part, and forms a rib 22 for bending rigidity and holding a heat insulating material. There is.

Further, since the coupling member 3 is made of synthetic resin, the heat conduction specific resistance can be improved by 200 to 300 times that of metal. In this way, the wall bodies of the panel body 1 are easily assembled by repeatedly assembling one group of walls that form the formwork and then placing the horizontal streaks in the recesses of the connector 3 in the longitudinal direction. After assembling the panel wall to the uppermost stage, the reinforcing bars in the width direction are inserted, and the concrete 21 is poured from above to complete the concrete structure.

FIG. 5 shows another embodiment of the coupling tool. The coupling tool 14 shown in the figure is a substantially H-shaped product formed by bending a round bar into a U-shape and attaching them back to back. In the case of this example, it is effective to apply it to a metallic one, and a metal serves to reinforce the frame body in terms of strength.
Further, since the structure is simple, it is possible to create it on site in case of emergency. However, in the case of metal, there is a drawback that the heat conduction specific resistance is small and a thermal bridge is formed. The present invention basically comprises the components of the panel body, the heat insulating material, and the coupling tool described above. After that, concrete is simply poured into the frame.

FIG. 6 shows a basic combination of molds, and shows a form of a mold in which a coupling tool 3 is laid across two panel bodies 1 facing each other in parallel to the thickness direction. Since the fitting 3 is fitted in the engaging portion 6 parallel to the panel body 1 in the thickness direction, the mold is not distorted.

A heat insulating material 9 is attached to the tip of the rib 2 of one panel body 1, and the heat insulating material 9 faces the other panel body 1. The concrete 21 is poured between the heat insulating material 9 and the other panel body 1. A space is formed between the heat insulating material 9 and the rib of the one panel body 1, and this space portion forms a ventilation layer 10 which is an air layer. The shape of the coupler 3 of FIG. 6 is shown schematically, but the exact shape is shown in FIG.

When stacking the panel bodies 1 in the vertical direction, a fitting frame is similarly formed for the protrusions 5 of the connector 3 to the engaging portions 4 of the panel body 1 as described above. In this way, the connector 3 is H-shaped to simplify the configuration, and the panel body 1 can be freely combined in the lateral direction and the vertical direction.

FIG. 7 shows an example of a combination in the lateral direction, and is a plan view seen from the upper side in the width direction of the panel body 1. It shows a state in which concrete 21 is poured between the panel body 1 for the inner wall and the heat insulating material 9 which are opposed to each other by using three couplers 3. Since the poured concrete 21 is blocked by the heat insulating material 9 and does not reach the outer wall panel body 1, the ventilation layer which is an air layer between the ribs between the heat insulating material 9 and the outer wall panel body 1 as described above. 10 is formed. .

FIG. 8 is a sectional view showing an example in which the panel bodies 1 are combined in the vertical direction. The upper and lower panel bodies 1 are joined by a joining tool 3. The joints of the upper and lower panel bodies 1 are mortar joints. As described above, the reinforcing bar 23 is fitted in the concave recess 13 of the connector 3 in the longitudinal direction. Further, reinforcing bars 24 are also inserted in the width direction. FIG. 9 shows an example in which the panel bodies 1 are laminated. The state where the panel bodies 1 are piled up in a block shape on the base body 25 is shown. Unlike conventional block stacking, it is a stacking of panel body 1,
Since concrete is continuously inserted into the inside later, the joint portion of the panel body 1 is integrated with concrete to form a strong structure.

FIG. 10 shows an example of construction of a corner portion of a concrete structure. If the corners 15 of the inner panel body 1 are partially cut and used within the range where they do not interfere, it is not necessary to separately prepare for the corners, and the same panel body 1 can be used commonly for the corners of the concrete structure. It is shown that. However, for the coupling tool 3, it is necessary to specially prepare the coupling tools 16, 17 having a short length in order to reinforce the corners.

When connecting the connecting members 16 and 17 to the panel body 1, the connecting members 16 and 17 may be installed diagonally at an angle of 45 degrees.
17 is inserted and the parnet bodies 1 arranged at the corners are fixed to each other. Further, the following configuration is also possible as a method for further strengthening this frame. FIG. 11 is a plan view showing another construction example in which one composed of two panel bodies 1 is used as a set, and the coupling tool 3 can be laid across the surface of the panel body 1 at a right angle. Also, the coupling tool 1 can be installed diagonally
It is a structure that is attached so as to straddle 8. In this case, the lengths of some of the connectors differ. In this case, since the coupling tool 18 receives the force generated by the mutual displacement of the panel bodies 1, there is no risk of displacement as a form, and the frame becomes stronger.

FIG. 12 is a plan view showing another construction example, in which a plurality of opposed panel bodies 1 are displaced by half the position of the length of the panel body 1 and are alternately arranged to form a right angle direction as described above. And a configuration in which the couplers 3 and 18 are laid across in an oblique direction. In this case, the bond between the adjacent panel bodies 1 becomes strong. The corner portion of the concrete structure is basically constructed by cutting a part of the corner portion of the same panel body as described above, but as shown in FIG. 13, a dedicated panel body for corners is constructed. If it is prepared in advance according to the width of the concrete, a concrete construct with a good appearance can be obtained. The outside corner portion 19 is used for the outside of the corner portion, and shows the block of the panel body for the inside corner portion 20 used for the inside of the corner portion.

Further, if some panel bodies 1 having a length different from the standard one are prepared, for example, if the panel body 1 having a half length is preformed, it is used for supplementing the protruding portion. This makes it easier to work because there is plenty of room in the arrangement combinations. Next, the operation will be described. The present invention is configured as described above, and the frame is assembled manually. Place a predetermined panel body on a flat surface in the field, put the heat insulating material when the position is fixed, insert reinforcing bars, and then fit the fasteners one after another, and stack the panel bodies Repeat the same procedure to construct the wall. After the construction of the frame is completed, concrete is poured into the frame to complete it. Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment.

[0047]

As described above, the method of constructing a concrete structure of the present invention and the structure thereof can form a frame only with a panel body having ribs and a substantially H-shaped connector, so that the structure is simple. In addition, the working time can be shortened and the work is not complicated, so that the construction period can be shortened and it is economical. Since the panel body has ribs on the back surface, the strength of the panel body is increased. Further, since the panel body is molded by the high pressure press, it is possible to make a dense and high quality one.

When the heat insulating material is attached over the upper ends of the ribs, a gap corresponding to the height of the rib, that is, an air layer is formed between the back surface of the panel body and the heat insulating material. As a result, in addition to the heat insulating effect of the heat insulating material itself, the presence of this gap provides good air permeability and is effective in improving measures against humidity.

When the connecting member is made of synthetic resin, it is effective in suppressing heat penetration from the outer wall when forming the structure. Further, this coupling tool serves not only horizontally but also vertically. Since the configuration is simple and easy to handle, work mistakes can be prevented. Furthermore, if the amount of heat storage of reinforced concrete is used as positive energy,
It is possible to combine structures that have no heating and cooling load. As a result, this structure is excellent in economic efficiency and has effects such as high heat storage property, high durability, high fire resistance, water resistance, earthquake resistance, and wind resistance.

[Brief description of drawings]

FIG. 1 is an external view showing a surface of a panel body which is the basis of the present invention.

FIG. 2 is an external view showing a back surface of a panel body which is the basis of the present invention, showing a configuration of ribs, and showing attachment of a heat insulating material.

FIG. 3 is an external view showing a panel body having no ribs.

FIG. 4 is a plan view showing a coupling tool.

FIG. 5 is a plan view showing another embodiment of the coupler.

FIG. 6 is an external view showing that the panel members are joined by arranging the joining tools in a right angle direction.

FIG. 7 is a plan view in which the panel bodies are arranged in the lateral direction.

FIG. 8 is a cross-sectional view in which the panel body is arranged in the vertical direction.

FIG. 9 is an external view in which a plurality of panel bodies are laminated.

FIG. 10 is a plan view showing a corner portion of a configuration in which panel bodies are arranged in a lateral direction.

FIG. 11 is a plan view showing an example in which a coupler is coupled in an oblique direction.

FIG. 12 is a plan view showing an example in which a plurality of panel bodies whose positions are displaced in the longitudinal direction are joined by a joining tool.

FIG. 13 is a plan view showing an example in which the dedicated panel bodies at the corners are joined by a joining tool.

[Explanation of symbols]

1 ... Panel body 2 ... rib 3 ... coupling 4 ... Engagement part 5 ... Protrusion 6, 7 ... hollow 9 ... Insulation 10 ... Ventilation layer 11 ... hole 16, 17 ... Coupling 21 ... Concrete

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-9-310493 (JP, A) JP-A-5-156787 (JP, A) JP-A-8-68135 (JP, A) Actual development Sho-54- 132916 (JP, U) Actual development Sho 54-61416 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04B 2/86

Claims (5)

(57) [Claims] 1. A concrete molded by high pressure press working.
A panel body in which a plurality of ribs are linearly arranged and formed on the back surface in the width direction , which is a reed body, and a heat insulating material arranged across the thickness direction tip portions of the plurality of ribs of the panel body, Between the panel body and the panel body which are arranged in the thickness direction and are mutually spaced apart from each other, and the panel body and the panel body which are vertically arranged are coupled to each other; A method for constructing a concrete structure in which concrete is poured between the other panel body, wherein the ribs are symmetrical at substantially equal intervals in the longitudinal direction of the panel body.
The heat insulating material is arranged over the thickness direction tip portions of the plurality of ribs of the panel body, and when the concrete is poured, the ribs of the panel body covered with the heat insulating material. A method for constructing a concrete structure, comprising constructing a space having an air layer between them. 2. A building structure, comprising a panel body on the back surface of which a plurality of ribs are linearly formed in the width direction, and straddling the front ends of the plurality of ribs of the panel body in the thickness direction. A heat insulating material to be arranged, a combination body that mutually connects the ribs in the thickness direction and is arranged at an interval, and couples the panel body and the panel bodies arranged in the vertical direction to each other; And a concrete that is poured between the panel bodies and the other panel body that is separated from the heat insulating material, and the panel body is molded by high-pressure pressing.
It is a cleat body, and the ribs are symmetrical at substantially equal intervals in the longitudinal direction of the panel body.
And a space portion having an air layer is formed between the ribs of the panel body covered with the heat insulating material when the concrete is poured into the concrete structure body. 3. The concrete structure according to claim 2, wherein the ribs are provided with engaging portions for engaging the combined body at both ends in the width direction. 4. The concrete structure according to claim 2, wherein the combined body has a protrusion for engaging with an engagement portion of the panel body and has a substantially H shape. 5. A method according to claim 2 or 4, concrete structure, wherein said conjugate is made integrally molded synthetic resin.