WO2005071175A1

WO2005071175A1 - Construction of light-weight reinforced concrete prefabricated house

Info

Publication number: WO2005071175A1
Application number: PCT/JP2004/010067
Authority: WO
Inventors: Hiromi Adachi; Mitsukazu Nakanishi
Original assignee: Nihon University
Priority date: 2004-01-27
Filing date: 2004-07-08
Publication date: 2005-08-04
Also published as: JP2005213748A

Abstract

In the construction of a light-weight reinforced concrete prefabricated house, pillar members (11, 12, 13) are formed such that two symmetrical panels (11A, 11B, 12A, 12B, 13A) having groove faces inclined at an angle of 45 degrees over the entire length of one side are joined in L-shape by shear cotters (11d, 12d, 13d) and the thus-formed members (11, 12, 13) are superposed in a plurality of layers. Beam members (21) are joined to the sides of the uppermost layers (11) of the pillar members by horizontally disposed through-bolts (Bh1), while horizontal members (31, 32) are laid all over the upper surfaces of the uppermost layers (11) of pillar members and the upper surfaces of the beam members (21). Most of the horizontal members (31) are joined to the beam members (21) by vertically disposed through-bolts (Bv3), while the rest (31, 32) of the horizontal members are joined by through-bolts (Bv2) which vertically extend through up to at least the second pillar members (11, 12) from the top.

Description

Structure of lightweight reinforced concrete prefabricated house

The present invention relates to a lightweight reinforced concrete prefabricated structure comprising a column part, a beam part and a horizontal part composed of a column member, a beam member and a horizontal member made of lightweight reinforced concrete.

Regarding the structure of the house. 2. Description of the Related Art In recent years, in addition to cost reduction and shortening of the period due to mass production, there is a growing demand for lightweight reinforced concrete housings with a fire-resistant structure and a prefabricated construction method intended to improve earthquake resistance against earthquakes and the like.

In the above prefabricated construction method, reinforcing steel bars are arranged inside, concrete panels with dimensions standardized for each house maker are produced at the factory, and the concrete panels are used at the construction site to provide predetermined connecting members or bonding agents. It is well known that this is a method of assembling using.

In Japan, in particular, due to the desire to improve life, the size of each room or module has been increased, and the demand for improved facilities by consumers has been increasing. As each room becomes larger, the concrete panels used are inevitable, and the size of the rooms is increasing.

Due to the increase in the size of the concrete panels, that is, the increase in the mass of the concrete panels, it has become inevitable to use heavy equipment such as cranes for transporting or setting up panels at construction sites.

On the other hand, in a developing country or in Japan, a building site with a poor footing or a narrow dwarf can be transported by human power, and can be assembled without using heavy equipment such as cranes when assembling panels. Concrete panels that are lightweight and easy to assemble and methods of assembling them are required. Disclosure of the invention

The present invention has been proposed in view of the above-described problems of the prior art, and is easy to manufacture, has excellent strength, is lightweight, has high transportation efficiency, and requires the use of heavy equipment such as a crane for assembly. The objective is to provide a lightweight reinforced concrete prefabricated house structure that is easy to assemble and easy to assemble with each other, and that has high assembling accuracy.

According to the present invention, a column made of lightweight reinforced concrete and composed of a plurality of column members (11, 12, 13), a plurality of beam members (21), and a plurality of horizontal members (31, 32). In the structure of a lightweight reinforced prefabricated house comprising a part (1), a beam part (2) and a horizontal part (3), the column part (1) has a groove surface inclined at 45 degrees over the entire length of one side. When assembling two symmetrical rectangular members (panels; 11A, 11B, 12A, 1? B, 13A) with shears (lld, 12d, 13d) It is constructed by stacking a plurality of column members (11, 12, 13) that are joined in an L-shape, and the beam part (2) moves the beam member (2 1) in the horizontal direction. It is joined to the side of the uppermost step (11) of the column member by a through bolt (Bhl) arranged at the side, and the horizontal part (3) connects the horizontal member (31, 32) to Best The majority of the horizontal members (31) are laid on the upper surface of (11) and the upper surface of the beam member (21), and the majority of the horizontal members (31) are vertically arranged through bolts (BV3). ), And the remaining horizontal members (3 1, 3 2) are through bolts (B v 2) that penetrate vertically through at least the second step (11, 12) from the top of the column members. According to the above, three or more members (31, 32, 11 and 12) or more are integrally joined (claim 1).

The plurality of column members (11, 12, 23), the plurality of beam members (21), and the plurality of horizontal members (31, 32) are all ribs (llr, 12 r, 13 r, 21 r, 31 r, 32 r) are formed, and the mass value of a single unit is less than the value that can be carried by human power or a light lifting device (Claim 2) .

Further, the structure of the light-weight reinforced concrete prefabricated house of the present invention is characterized in that, when forming the column members (11, 12, 13), when the upper side is stacked above the lower side (13), The fixing auxiliary hardware (G) is used for positioning and for preventing out-of-plane buckling (claim 3). Brief Description of Drawings

FIG. 1 is a perspective view showing the configuration of the entire main cell according to the embodiment of the present invention, FIG. 2 is a front view showing a part of the configuration of the main cell, and FIG. FIG. 4 is a perspective view corresponding to FIG. 3, FIG. 5 is a front view of a panel constituting the first column member according to the embodiment of the present invention, and FIG. X sectional view, FIG. 7 is a perspective view of a panel constituting a second column member in the embodiment of the present invention, FIG. 8 is a perspective view of the first column member in the embodiment of the present invention, and FIG. FIG. 10 is a perspective view for explaining a process of assembling the pillar portion in the embodiment of the present invention. FIG. 10 is a front view of one panel constituting a second pillar member in the embodiment of the present invention. FIG. 12 is a front view of the other panel constituting the second column member according to the embodiment of the present invention. FIG. FIG. 13 is a perspective view of a beam member according to the embodiment of the present invention, FIG. 14 is a front view of the beam member according to the embodiment of the present invention, and FIG. FIG. 14 is a longitudinal sectional view corresponding to FIG. 14, FIG. 16 is a see-through view showing the arrangement of reinforcing bars embedded in the beam member according to the embodiment of the present invention, and FIG. 17 is a perspective view of the beam member according to the embodiment of the present invention. FIG. 18 is a perspective view showing the shape of the first horizontal member in the embodiment of the present invention three-dimensionally, and FIG. 19 is a perspective view showing the arrangement of the main reinforcement to be buried. FIG. 20 is a bottom view of the first horizontal member, FIG. 20 is a side view of the first horizontal member in the embodiment of the present invention, and FIG. 21 illustrates a method of connecting a plurality of horizontal members in the embodiment of the present invention. FIG. 22 is an XX cross-sectional view of FIG. 21, and FIG. 23 is a shape of a second horizontal member according to the embodiment of the present invention. Body shown and perspective view, a bottom view of a second horizontal member in the embodiment of FIG. 2. 4 present invention, FIG. 2. 5 is a side view of a second horizontal member according to the embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, referring to FIGS. 1 and 2, the structure of a main cell 100 of a lightweight reinforced concrete prefabricated house (hereinafter, “lightweight reinforced concrete prefabricated house” is simply abbreviated to “prefabricated house”), for example, a living room, etc. Will be described.

Here, FIG. 1 is a perspective view showing the entire configuration of the main cell 100, and FIG. 2 is a front view showing one surface of the main cell as a basic configuration. The foundation shown in Fig. 1 is a beam It can be made with the same configuration as the parts.

The main cell 100 is composed of four pillars 1 arranged at four corners, a beam 2 connecting the upper ends of adjacent pillars 1, and a horizontal part 3 forming a roof and a floor. Yes.

In the example shown, the first column member 11 at the top, the second column member 12 at the second stage, and the third It is composed of 3 types and 5 levels of column members 1 3 (3 levels).

Beam part 2 consists of two common beam members 21 connected laterally on one wall of the room (see also Fig. 2).

As shown in Fig. 2, the horizontal part 3 forming the roof and the floor is composed of a plurality of first (one roof or 10 per floor) excluding both ends of the roof and the floor. It comprises a horizontal member 31 and a pair of second horizontal members 32 that sandwich the first horizontal member 31.

In addition, the first horizontal member 31 and the second horizontal member 32 are provided at the upper end of two opposing beam members 21 per room and the second horizontal members 32 at both sides of the beam member 21. It is laid continuously so as to bridge the upper end of column member 1 1.

As shown in Fig. 6, the first column member 11 is composed of two common column members 11A and 11B (11A and 11 B is a common member, but the sign is changed for the sake of convenience).

The column member 11A will be described in more detail with reference to Figs. 5 and 6. A thin rib 11r is formed on the outer edge of the upper, lower, left and right sides of the surface 1 Ι Αο corresponding to the inner side of the room, The area excluding the rib 11r is a recess 11a having a flat bottom.

The bolt seating surface 11 V perpendicular to the upper and lower corners in FIG. 5 of the vertical surface of the rib 11 r on the opposite side of the groove surface 11 f of the recess 11 a is protruded to the left. It is formed.

On the other hand, at the upper and lower corners in FIG. 5 of the rib 11r on the groove surface 11f side, horizontal bolt seating surfaces 11h projecting toward the center in the vertical direction are formed. ing. A bolt insertion hole lib is formed in each of the two vertical bolt bearing surfaces 11 V so as to penetrate the rib 11 r in the horizontal direction.

Further, the two horizontal bolt seating surfaces 11h are formed with bolt through holes 11c vertically penetrating the rib 11r at the same position.

A groove 11 d for sheacotter having a predetermined depth is formed in the center of the groove surface 11 f along the groove surface.

As shown in FIGS. 10 and 11, details of the second pillar member 1 2 (see the perspective view of FIG. 8 for the three-dimensional shape) are two pieces each having a 45 ° bevel on one side. The symmetrical column member (panel) 12 A and the column member panel 12 B (see the perspective view in Fig. 7 for the three-dimensional shape) are joined at their groove faces 12 Af and 12 Bf. And are integrally configured.

The panel 12A will be described in more detail with reference to FIG. 10. As shown in FIG. 10, thin ribs 12r are formed on upper, lower, left and right outer edges on a surface corresponding to the inner surface of the room. Excluded area is a depression 12a with a flat bottom.

The horizontal bolt seats 1 2h and 1 2h are located at the upper and lower centers at the corners of the upper and lower horizontal planes in Fig. 10 of the ribs 12 r on the groove surface 1 2A f side of the recess 1 2a. It is formed so as to approach the part.

On the other hand, the horizontal bolt seats 12 ht and 12 hb face the upper and lower central portions at the corners of the upper and lower horizontal surfaces in FIG. 10 of the rib 12 r on the opposite side of the groove surface 12 Af. It is formed to protrude.

On two horizontal bolt seating surfaces 12h on the side of the groove surface 12Af, there are formed bolt holes 12c vertically penetrating the ribs 12r at the same position.

In addition, a bolt hole 12 ct is formed in the upper seating surface 12 ht of the rib 12 r on the opposite side of the groove surface 12 Af, and the opposite side of the groove surface 12 Af. The lower seating surface 12 hb of the rib 12 r has a bolt hole 12 cb formed therein.

In FIG. 10, the distance L1 21 from the right end of the panel of the bolt 揷 through hole 12 ct is closer to the center of the recess 12 a than the positions of the other three bolt holes. That is, the lower bolt 右側 through hole 12 cb is located on the right side of the drawing from the distance L 12 3 from the right end of the panel. Therefore, the seat surface 12 ht including the upper bolt through hole 12 ct is formed longer than the lower seat surface 12 hb. The reason for this is that the first horizontal member 31 of the roof portion 3, the first column member 11 on the upper stage, and the second column member 12 are connected to each other with a through bolt BV 2 (see FIG. 3). This is to prevent the penetration bolt BV2 from interfering with or making contact with the vertical seating surface 11V of the panel 11A forming the first column member 11 on the upper stage when the connection is made by using the above-described method. A groove 12d for shear cotter having a predetermined depth is formed in the center of the groove surface 12Af along the groove surface 12Af.

It should be noted that the XX cross section in FIG. 10 is substantially the same as the same cross section of the panel 11A constituting the first column member 11, so that the illustration is omitted.

The other panel 12B (see FIG. 11) constituting the second column member 12 is symmetrical with respect to the above-described panel 12A, so that the following description is omitted.

Next, the third column member 13 and the panel 13A constituting the third column member 13 will be described with reference to FIGS.

Panels 12A and 12B of the second column member shown in Fig. 10 and Fig. 11 are on the opposite side of the groove surface 12f, and only the upper bolt seat is longer than the other seats. The shape was asymmetric.

In contrast, panel 13A in Fig. 12 has bolt seats 13h with four bolt holes 13c drilled at four locations, all of which have the same length, including the contour of the seat 13h. The shape of the recess 13a is linearly symmetric with respect to the horizontal axis X and the vertical axis Y passing through the center point の of the recess 13a, and the shape of the entire panel 13A is represented by the horizontal axis X Is symmetrical with respect to.

Therefore, if two identical panels 13A are used, the third column member 13 is formed. At the left end in FIG. 12, a groove surface 13 Af having a 45-degree inclination is formed, and a sheacotter groove 13 d is formed at the center of the groove surface 13 Af.

Also, since the cross-sectional shape along the X axis is substantially the same as that of panel 11A described above, the following description will be omitted.

Next, the beam member 21 will be described in detail with reference to FIGS.

FIG. 13 is a perspective view showing the sword member 21 in a three-dimensional manner.

The beam member 21 is line-symmetric with respect to a vertical axis Y passing through the center point and a horizontal axis X as shown in FIG. Ribs 21r are continuously formed on the peripheral edge, and the ribs 21r are removed. The hollow area is a depression 21 a with a flat bottom.

Also, at four upper and lower corners of the left and right vertical portions of the rib 21r, a vertical bolt seat surface 21V is formed so as to protrude toward the center of the panel.

A bolt hole 21b is formed in each seat 21V so as to penetrate the rib 21r in the illustrated horizontal direction.

In the example shown in the figure, a total of eight vertical bolt holes 21 c are formed in the upper and lower horizontal portions of the rib 21 r in the vertical direction.

FIG. 15 is a diagram showing a cross section parallel to the vertical axis Y of FIG. 14, and FIG. 16 is a main bar 21 Sm and a sub bar 21 S s buried in the beam member (panel) 21. FIG. 17 is a perspective view showing the arrangement of the main reinforcement 21 Sm in a three-dimensional manner.

One main bar 21 S ni is formed in a U-shape, and four U-shaped main bars 21 Sm are alternately arranged uniformly in the thickness direction of the rib 21 r.

On the other hand, the secondary bars 21Ss are buried in the concrete in the form of a plurality of grids in the vertical and horizontal directions substantially in the center of the plane portion of the panel in the thickness direction, as shown in FIG.

Although not shown, the respective panels 11 A, 1 A constituting the first column member 11, the second column member 12, and the third column member 13 forming the column portion 1 are formed. 1B, 12A, 12B, and 13A also use the same U-shaped main reinforcement (two per panel) and multiple grid-like secondary reinforcements.

Next, the first horizontal member will be described with reference to FIGS.

FIG. 18 is a perspective view showing the first horizontal member 31 in a three-dimensional manner, and the surface indicated by the arrow T is the upper surface side of the roof or floor. In FIG. 18, the same parts as those in FIG. 19 described later are denoted by the same reference numerals.

The first horizontal member 31 is line-symmetric with respect to a vertical axis Y passing through the center point and a horizontal axis X as shown in FIG. Ribs 31r are continuously formed in the peripheral portion, and a region excluding the ribs 3r is a concave portion 31a having a flat bottom. In addition, two central ribs 310r are formed in the depression 3la so as to divide the depression 31a into three substantially equally.

In FIG. 20 in which the first horizontal member 31 is viewed from the side, the center rib 310 r Including the projection part, a groove portion 31 d for scotta is formed on both sides (in the example shown, a total of four places) in which mortar is embedded in a region of a predetermined height H below the upper surface 31 T. . In the sheacotter groove 31d, two bolt holes (a total of eight places) 31b are formed so as to penetrate the ribs 31r on both sides (see also FIG. 19). ).

At both ends in the longitudinal direction of the first horizontal member 31, at a position on the horizontal axis X and slightly away from the horizontal axis X, a bolt hole 31 c is formed from the upper surface 31 T to the lower surface. It is formed so as to penetrate.

Although not shown, the first horizontal member 31 also has the same reinforcing bars (main and auxiliary bars) as the beam member 21 embedded therein.

FIG. 21 shows a state in which a plurality of (three in the illustrated example) horizontal members 31 are arranged so as to be in contact with each other, and are fastened to each other with connecting bolts Bh2. Oh O ₀

In the figure, reference numeral 31 m denotes a shear cotter formed by pouring mortar into the shear cotter groove 31 d.

FIG. 22 is a diagram showing a cross section taken along line X-X of FIG. 21. In the figure, reference numeral 31Sm indicates a main reinforcing bar of the embedded reinforcing bar, and reference numeral 31Ss indicates the accessory reinforcing bar.

Next, the second horizontal member 32 will be described with reference to FIGS.

FIG. 23 is a perspective view showing the second horizontal member 32 in a three-dimensional manner, and the surface indicated by an arrow T is the upper surface side of the roof or floor. In FIG. 23, the same parts as those in FIG. 24 described later are denoted by the same reference numerals.

The second horizontal member 32 has a line symmetry with respect to the vertical axis Y passing through the center point as shown in FIG. Ribs 32r are continuously formed on the peripheral edge, and the area excluding the ribs 32r is a recess 32a having a flat bottom. In addition, two central ribs 320r are formed in the recessed portion 32a so as to divide the recessed portion 32a substantially equally into three. In the lower side of the rib 32 r in FIG. 24, thickened ribs 3 2 2 r are formed in the vicinity of both left and right ends and the lower area of the center rib 320 r in four places. I have.

The lower side of FIG. 24 where the ribs are formed in the thickened area 3 2 2 r is the edge (end) when forming the roof and floor. In FIG. 25 in which the second horizontal member 32 is viewed from the side, mortar is included in a region having a predetermined height H below the upper surface 32 T, including the projection of the central rib 320 r. There are two sheacotter grooves 3 2d formed on the side opposite to the side where the thickened ribs 3 2 2r are formed. The sheacotter groove 3 2d is formed with two bolt holes (4 places in total) 32b at one location so as to penetrate only one rib 31r (see also Fig. 24). ).

At both ends in the longitudinal direction of the second horizontal member 32 and the region 32 22 r where the ribs are thickened, a plurality of (10 in the illustrated example) ports for coupling with the beam member 21 are provided. The through hole 32c is formed so as to penetrate from the upper surface 32T of the second horizontal member 32 toward the lower surface. Although not shown, a port BV3 is passed through the bolt passage hole 32c.

Although not shown, the same reinforcing bars (main and secondary bars) as the beam member 21 are embedded in the second horizontal member 32 as well.

Next, a method of assembling each member will be described with reference to FIGS. 2 to 4 and 9.

FIG. 3 is a detailed view of a portion surrounded by a circle P in FIG. 2, and FIG. 4 is a perspective view corresponding to FIG.

First, the pillar 1 is assembled according to the following procedure.

At the bottom of the third column member 13 in FIG. 2, two panels 13 A are previously prepared at a construction site or the like. It is set so as to be in contact with the mortar, and mortar is poured into the shea cotter groove 13 d to form a right-angle pillar member 13.

Next, the formed right-angled pillar member 13 is set vertically as shown in the lower part of FIG. A thin sheet metal fixing auxiliary hardware G is placed on the upper end surface of the left panel 13 A shown in FIG. 9 of the right angle column member 13. As described above, the bolt holes 13c are formed in the panel 13A.

On the other hand, a hole Hg for positioning and out-of-plane buckling is also formed in the fixing auxiliary metal member G, and a through bolt (not shown) is inserted through the hole Hg and the bolt hole 13c. And fix it. The fixing auxiliary hardware G fixed to the upper end surface of the panel is composed of two arms G a and G b formed in an L-shape as a whole, as clearly shown in FIG. Holes Hg are formed at positions corresponding to the bolt holes 13c in the holes Ga and Gb. Therefore, the upper and lower column members 11, 12, 13 can be fastened by porto.

Next, the groove face of another panel (1 3 A-2) not shown is matched with the groove face 13 A f of panel 13 A-2, and the left panel 13 3 shown in the same manner as above. A, 1 3 A-2 are fastened together with bolt BV1.

In the same manner, assemble the third column member 13 in the third row from the bottom. Further, in the same manner, the second column member is assembled on the third column member 13 using the panels 12A and 12B described above.

Finally, mortar is poured into the shea cotter grooves formed on the groove surfaces (joints) of the left and right panels of each step to secure the connection between the left and right panels. Next, a method of assembling the lower part of the roof (the unit indicated by Q in FIG. 2) using two first column members 11 and two beam members 21 will be described.

Referring to FIGS. 2 and 3, first column member 11 and beam member 21 are connected using bolts Bh1. Connect the remaining beam member 21 and the opposite column member 11 in the same way, and assemble the lower part of the roof (the unit indicated by arrow Q in Fig. 2) as one. It is preferable that the first column member 11 be assembled in an L shape using two panels 11A and 11B at a site or the like.

In that way, prepare four sets of parts Q under the roof.

After assembling four sets of the lower part Q of the roof, the roof part 3 is constructed on the upper surface of the lower part Q of the four sets of the roof.

Now, a case where the building shown in FIG. 1 is assembled will be described. First, a foundation is constructed on a predetermined ground using the beam member 21 and the corner column 10, and then a floor is constructed thereon using the horizontal members 31 and 32. However, this foundation and floor need not necessarily be constructed, but another type of foundation and floor may be provided.

Then, four pillars 1 are erected, and the beam 2 is set between the pillars 1. In the illustrated example, two beam members 21 are assembled respectively. After that, the horizontal members 3 1 and 3 2 that make up the ceiling can be laid out and set. In the illustrated example, the total width of the four first horizontal members 31 arranged in the width direction is equal to the length of the beam member 21.

When the first horizontal member 3 1 has been spread over the upper surface of the beam member 2 1 of the lower part Q of the two pairs of opposing roofs, the first horizontal member 3 1 1 and the beam member 2 1 pass through the bolts BV 3 so that the members 3 1 and 2 1 pass through the bolt holes of the 1, and tighten the nut N to tighten the first horizontal member 3 1 2 Stick it to 1.

Then, in the lower part Q of the roof, at the right end of the upper surface of the first column member 11, that is, next to the first horizontal member 31 already fixed to the beam member 21, another first member The horizontal member 31 is placed so that all the side surfaces are in contact with each other, and the second horizontal member 32 is placed next to the left side so that all the side surfaces are also in contact. The total width of the first and second horizontal members is equal to the width of the panel 11A of the first column member.

After the first and second horizontal members 31 and 32 are placed on the upper surface of the first column member 11, the second through bolts BV 2 are connected to the first and second horizontal members 31 and 32. Then, the first column member 11 and the second column member 12 are penetrated so as to penetrate the three members at the same time, and the nut N is tightened, and the column portion 1, the beam portion 2, and the horizontal portion 3 are connected. Assemble into one body. The outer through bolts B V 2 may be two bolts, one for connecting the horizontal member 32 and the column member 11 and another for connecting the column members 11 and 12.

Here, the mass of the various panel materials described above is preferably about 60 kg alone.

Even if the number used is small, it is preferable to set the maximum to about 100 kg in order to eliminate the use of heavy equipment such as crane.

According to the present embodiment having such a configuration, the horizontal members are tightly bound by the shear cotter 3 lm, and exhibit sufficient resistance to external forces such as an earthquake.

When an external force is applied, at least three pillar members 1 1 and 1 2 and horizontal members 3 1 and 3 2 such as roofs and floors at the corners where the stresses are concentrated, especially at the intersection of the column members and beam members Since the members 31 and / or 32, 11 and 12 are restrained by one through bolt BV2, local destruction is prevented and strength is improved.

The mass of a single unit (panel) of each member is less than the value that can be carried by human power or a light lifting device Therefore, the use of heavy equipment such as cranes during transportation and assembly can be eliminated. In forming the column members 11, 12, 13, when the upper side is stacked above the lower side, the fixing auxiliary hardware G is used for positioning and preventing out-of-plane buckling. The strength is increased, the assembling is easy, and the assembling accuracy is improved.

It is to be noted that the illustrated embodiment is merely an example, and is not a description to limit the technical scope of the present invention. The present invention can also be applied to a two-story building. The invention's effect

According to the present invention having such a configuration, the horizontal members are tightly bound by the shear cotter (31 m), external force such as an earthquake is evenly distributed to each column member, and each column member has a sufficient resistance to power. Demonstrate.

When an external force is applied, the corners where the column members (1 1) and the beam members (2 1), where the stress is concentrated, intersect with the column members (1 1 and 1 2) and the horizontal members (such as the roof and floor) The three or more members 3 1, 3 2) are restrained by one through bolt (B v 2) to prevent local destruction of the corners.

Since the mass of each unit (panel) is less than the value that can be carried by human or light lifting equipment, it is not necessary to use heavy equipment such as cranes for transportation and assembly. When forming the column members (1, 1, 12, 13), the fixing auxiliary hardware (G) is used for positioning when stacking the upper side above the lower side, making assembly easy. In addition, assembly accuracy is improved.

Claims

The scope of the claims

1. In a structure of a lightweight reinforced concrete prefabricated house composed of a column part, a beam part, and a horizontal part composed of a plurality of column members, a plurality of beam members, and a plurality of horizontal members made of lightweight reinforced concrete, When assembling two symmetrical rectangular members having a groove surface inclined at 45 degrees over the entire length of one side, a plurality of pillar members are formed by joining them in an L-shape with a shear cotter. The beam member is connected to the uppermost side of the column member with through bolts arranged in a horizontal direction, and the horizontal member is connected to the upper surface of the uppermost stage of the column member and the beam member. The majority of the horizontal members are laid on the upper surface, and the majority of the horizontal members are joined to the beam members by through bolts arranged in a vertical direction, and the rest of the horizontal members are at least the second stage from the top of the column members. Vertical penetration Structure of Lightweight Reinforced Concrete pre hubs housing, characterized in that it is joined a vertically third member or guard member by through bolts that.

2. Each of the plurality of pillar members, the plurality of beam members, and the plurality of horizontal members has a rib formed continuously on four sides, and the value of a single unit is a light lifting device including human power. The structure of the lightweight reinforced concrete prefabricated house according to claim 1, which is not more than a portable value.

3. The structure of the lightweight prefabricated concrete reinforced concrete house according to claim 1 or 2, wherein when forming the column member, a fixing auxiliary metal is used as a positioning when the upper side is stacked above the lower side. .