JP2011017147A - Reinforced concrete masonry structure, method for constructing the same, and concrete block slab for use in the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new reinforced concrete masonry structure which can shorten a construction period and improve construction quality, by solving problems of construction of a conventional reinforced concrete masonry structure; and to provide a method for constructing the new reinforced concrete masonry structure.SOLUTION: This reinforced concrete masonry structure mainly includes reinforcements 3 which are assembled on a foundation 2, and the concrete block slabs 4 which are assembled on both the sides of the reinforcements 3 in such a manner as to surround the reinforcements 3 on the foundation 2; and connecting and receiving grooves 12 are provided on the top and under surfaces of each concrete block slab 4, respectively. Structurally, the upper and lower concrete block slabs 4 are connected to each other via a connecting fitting 13 which has both ends provided with a plurality of engaging pieces 14 and 15 for being concurrently engaged with the respective connecting and receiving grooves 12 of the upper and lower concrete block slabs 4 and the respective connecting and receiving grooves 12 of the concrete block slabs 4 on both the sides; and the concrete block slabs 4 on both the sides are connected to each other via the connecting fitting 13.

Description

  The present invention relates to a reinforced concrete masonry structure and a construction method thereof in which rebars are assembled on a foundation in advance and a concrete block plate is assembled on both sides later.

  In conventional reinforced concrete masonry, concrete blocks are stacked one by one so that the vertical bars pass through the vertical bars standing on the foundation, and in parallel, the horizontal bars are assembled to the vertical bars in order from the bottom. It was like that. In addition, the construction of electrical wiring and water supply pipes that passed through the concrete block was performed in parallel with the work between the concrete blocks and the horizontal bars.

  In conventional reinforced concrete masonry construction, each work is performed in parallel or crowded, so block wiring is interrupted and electrical wiring is performed, rebar assembly is interrupted and water supply piping is performed, Work did not proceed, and in some cases, there was a case where it was necessary to entrust the work to a person other than a specialist, and there was a problem in shortening the construction period and improving the construction quality. In addition, when the blocks are stacked, the internal construction state cannot be visually checked, so there is a problem that construction inspection of reinforcing bars, electrical wiring and water supply piping is difficult, and it is difficult to find even if there is a construction mistake.

  On the other hand, in recent years, Shirasu material has attracted attention as a natural material, and a material applied to a plastering wall material has been proposed (see Patent Document 1).

JP 11-62053 A

  However, in the proposal of Patent Document 1, since it is difficult to finish a shirasu material into a concrete block at a factory, since it is finished at the construction site, there is a problem that the construction quality depends on the weather and temperature at the site. . Moreover, when it constructs with respect to reinforced concrete masonry, the problem in the construction of the conventional reinforced concrete masonry mentioned above remains.

  The present invention has been made in view of the above circumstances, a new reinforced concrete masonry structure capable of solving the problems in the construction of conventional reinforced concrete masonry construction, shortening the construction period and improving the construction quality, and its The purpose is to provide a construction method. Another object of the present invention is to provide a concrete block slab for reinforced concrete masonry that can apply a shirasu material to a finishing material or the like without being influenced by the weather and temperature.

  In order to solve the above-mentioned problems, the reinforced concrete masonry structure according to the present invention is mainly composed of a reinforcing bar to be assembled on the foundation and a concrete block plate to be assembled on both sides so as to surround the reinforcing bar on the foundation. A connection metal fitting provided with a plurality of engagement pieces at both ends is provided with connection receiving grooves on the upper and lower surfaces of the plate, and simultaneously engaging with each connection receiving groove of the upper and lower concrete block plates and each of the connection receiving grooves of the concrete block plates on both sides. The first feature is that the upper and lower concrete block plates and the concrete block plates on both sides are connected to each other.

  The second feature of the reinforced concrete masonry structure according to the present invention is that each connection receiving groove on the upper and lower surfaces of the concrete block plate extends in the longitudinal direction and opens at both ends thereof.

  A third feature of the reinforced concrete masonry structure according to the present invention is that a shirasu material layer is integrated in advance with a mortar base layer of a concrete block plate.

  The construction method of the reinforced concrete masonry structure according to the present invention assembles reinforcing bars on the foundation, and assembles concrete block plates vertically on both sides surrounding the reinforcing bars on the foundation to fill the internal space with mortar. A reinforced concrete masonry construction method in which upper and lower surfaces of a concrete block plate are previously provided with connection receiving grooves, and upper and lower concrete block plates are provided with connecting hardware provided at both ends with vertically facing engagement pieces. The upper and lower concrete block plates and the concrete block plates on both sides are connected to each other by simultaneously engaging the engagement pieces of the connecting hardware with the connection receiving grooves of the concrete block plates on both sides and the connection receiving grooves of the concrete block plates on both sides. Then, the interior space is filled with mortar after that.

  The concrete block slab for reinforced concrete masonry construction according to the present invention has a first feature that it is composed of a mortar base material layer and a shirasu material layer integrated with the mortar base material layer.

  The concrete block slab for reinforced concrete masonry according to the present invention is characterized in that the shirasu material layer is composed of a shirasu material layer and a shirasu finishing material layer.

  The concrete block plate for reinforced concrete masonry according to the present invention is characterized in that the shirasu material layer is mainly composed of shirasu balloons.

  The concrete block plate for reinforced concrete masonry construction according to the present invention is characterized in that the shirasu finishing material layer contains dry shirasu, shirasu balloon, gypsum, reinforcing material, and color pigment in the composition.

  A concrete block slab for reinforced concrete masonry construction according to the present invention is prepared by pouring a mortar base material into a formwork, pouring a shirasu material onto the mortar base material in the formwork, and then applying pressure from above to form a mortar base. It is manufactured by integrating a shirasu material with a material.

  The connecting hardware for reinforced concrete masonry construction according to the present invention is directed to both ends of the hardware main body, and is simultaneously engaged with the connecting receiving grooves of the upper and lower concrete block plates and the connecting receiving grooves of the concrete block plates on both sides. It is characterized by comprising a plurality of engaging pieces to be combined.

  As described above, according to the present invention, the reinforcing bars are assembled on the foundation in advance by using the connecting hardware for simultaneously connecting the concrete block plates arranged on both sides of the reinforcing bars and the upper and lower concrete block plates. The concrete block slabs can be assembled on both sides later, and the rebar assembling work and the concrete block slab assembling work can be done efficiently, respectively, shortening the construction period and construction of reinforced concrete masonry buildings The quality can be improved.

  In addition, electrical wiring and water supply piping work can be performed before the concrete block plate assembly work, and electrical wiring and pre-assembled reinforcing bars can be inspected before the concrete block plate assembly work. It is possible to eliminate as much as possible construction errors.

  Furthermore, according to the present invention, a reinforced concrete masonry structure that is lightweight, heat-insulating, weather-resistant, breathable, and moisture-absorbing and moisture-absorbing by integrating a concrete block slab with a mortar base material layer in advance. The wall structure can be realized, and at the same time, a highly designable outer wall with a unique texture of Shirasu can be constructed.

  The best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1 thru | or 6 shows one Embodiment of this invention, FIG. 1 has shown the construction middle of the reinforced concrete masonry in the middle of construction by this invention, ie, the wall of a building.

  As shown in FIGS. 1 and 2, a building wall (reinforced concrete masonry structure) 1 constructed according to the present invention is constructed by assembling reinforcing bars 3 vertically and horizontally on the upper surface of a foundation 2, and concrete blocks on both sides of the reinforcing bars 3. It is constructed by assembling the plate 4 later. The construction procedure will be described in detail below.

  First of all, foundation 2 is the part that pours concrete into the foundation of the building by putting reinforcing bars on the crushed stones etc. laid in the site of the building. As the main foundation, only the outer peripheral part and the wall part of the building There is a fabric foundation where the foundation work is carried out and a solid foundation where the foundation work is carried out on the entire ground directly under the building. On the upper surface of the foundation 2, a plurality of vertical bars 5 erected at the foundation work are erected at equal intervals. As shown in FIGS. 1 and 2, the horizontal bars 6 are passed to the vertical bars 5. And connect them with a binding wire. In this way, the rebar 3 is assembled in advance. Since the horizontal bars 6 can be assembled to the vertical bars 5 at a time, the rebar assembly work can be performed efficiently and the construction inspection can be performed before the concrete block plate 4 is assembled.

  Next, pipes 7 and 8 for electric wiring, water supply or gas supply are disposed between the rebars 3 assembled. The pipes 7 and 8 are arranged before the concrete block plates 4 and 4 are assembled. Prior to assembling the concrete block plates 4 and 4, the pipes 7 and 8 for electric wiring, water supply, gas supply, etc. are arranged, so that the arrangement work can be performed efficiently and before the concrete block plate 4 is assembled. The construction inspection can be done.

  Next, the concrete block plates 4 and 4 for the outer wall and the inner wall are assembled on the foundation 2 so as to be located on both sides of the reinforcing bar 3. The concrete block plate 4 will be described. The concrete block plate 4 is manufactured in advance at a factory. As shown in FIG. 3, the concrete block plate 4 is formed by integrally laminating a shirasu material layer 10 and a shirasu finishing material layer 11 on a mortar base material layer 9, and is thick on the upper and lower mortar base material layer 9 sides. Part 4A is provided. Further, engagement receiving grooves 12 extending along the longitudinal direction are formed in the upper and lower surfaces of the concrete block plate 4. Engagement grooves 14 and 15 that face the upper and lower ends of both ends of the connecting hardware 13 shown in FIG. 4A are inserted into the engagement receiving groove 12. It is open. The connecting hardware 13 is obtained by dividing the both ends of the hardware main body 16 into two parts, bending one upward and bending the other downward to form engaging pieces 14 and 15 respectively facing upward and downward.

  In order to assemble the concrete block slabs 4 and 4 for the outer wall and the inner wall on the foundation 2, first, the connecting hardware 13 ′ is used by using a screw 17 with respect to the installation position of the concrete block slab 4 on the foundation 2 shown in FIG. 2. Install. As shown in FIG. 4 (B), the connecting hardware 13 ′ has upward engagement pieces 14 ′ and 14 ′ at both ends of the hardware body 16, and a screw hole 16A at the center. It attaches with the screw 17 with respect to the installation position of the concrete block plate 4 on the foundation 2. At least one, preferably two or more connecting hardware 13 and connecting hardware 13 ′ are used for one concrete block plate 4.

  When the connecting hardware 13 ′ is mounted on the foundation 2, the lowermost concrete block plates 4 and 4 for the outer wall and the inner wall are installed on the foundation 1. In this case, the engagement receiving grooves 12 on the installation surface of the foundation 2 and the lower surfaces of the concrete block plates 4 and 4 are filled with mortar (resin mortar) 18 for water leakage prevention and adhesion. By filling the mortar 18, the concrete block plates 4, 4 can be bonded onto the foundation 2 and water leakage from the gap into the room can be prevented. When installing the lowermost concrete block slabs 4 and 4 for the outer wall and the inner wall on the foundation 2, the concrete block slab 4 and the upper engaging pieces 14 'and 14' of the existing connecting hardware 13 'are installed. The engagement receiving grooves 12 and 12 on the lower surface of 4 are aligned. As a result, the lowermost concrete block slabs 4 and 4 for the outer wall and the inner wall can be installed at predetermined positions on the foundation 2 without causing displacement.

  Next, the upper concrete block plates 4 and 4 are assembled on the lowermost concrete block plates 4 and 4 using the connecting hardware 13. First, the connecting hardware 13 is set so as to straddle between the upper surfaces of the lowermost concrete block plates 4 and 4. The connecting metal piece 13 is inserted with the downwardly engaging engagement pieces 15 and 15 at both ends thereof into the engagement receiving grooves 12 and 12 on the upper surface of the concrete block plates 4 and 4. Since the engagement receiving grooves 12 extend to the left and right ends of the upper surface of the concrete block plate 4, the set intervals of the plurality of connecting hardware 13 can be adjusted as appropriate. The concrete block slabs 4 and 4 are supported by the connecting hardware 13 and the standing state is fixed.

  Next, the second concrete block plates 4 and 4 from the bottom are assembled on the upper surface of the lowermost concrete block plates 4 and 4. Also at this time, the engagement receiving grooves 12, 12 on the lower surface are aligned with the upward engagement pieces 14, 14 of the existing connecting hardware 13. Further, the upper surface of the lowermost concrete block plates 4 and 4 and the engagement receiving grooves 12 and 12 are filled with a mortar (resin mortar) 18 for preventing water leakage and adhering.

  In this way, when the assembly is completed up to the uppermost concrete block slabs 4, 4 using the connecting hardware 13, a mortar for filling the internal space S between the concrete block slabs 4, 4 from above (not shown). To make a dense wall structure. At this time, the concrete block plates 4 and 4 of each layer are connected and fixed between the upper and lower sides and both sides by the connecting hardware 13, so that the assembly structure is firmly held when the mortar is filled, and the mortar is placed in the interior space with peace of mind. S can be filled.

  According to this embodiment, the wall thickness dimension of a wall can be freely set by adjusting the space | interval by using the concrete block plates 4 and 4. FIG. In this case, a plurality of types of connecting hardwares 13 and 13 ′ can be prepared in accordance with the wall thickness dimension of the wall 1.

  Since the shirasu material layer 10 and the shirasu finishing material layer 11 are integrated in advance with the mortar base material layer 9, the concrete block plate 4 can exhibit various performances possessed by the shirasu component. The shirasu material layer 10 is mainly composed of a large number of shirasu balloons, is excellent in heat insulating properties, air permeability, moisture absorption / release properties, and can exhibit weight reduction. The shirasu finish material layer 11 is a mixture of a dry shirasu having an average particle size of 2.5 mm or less and a reinforcing material such as gypsum, leopard or hemp, and a color pigment. It has a unique texture and is excellent in external design.

  By using the shirasu material layer 10 and the shirasu finishing material layer 11 for the concrete block plate 4, the concrete block plate 4 can be reduced in weight, thereby reducing the weight of the wall as a concrete block structure and heat insulation. It is excellent in weather resistance, breathability, moisture absorption and desorption, and can have a unique texture with the natural appearance of Shirasu.

  The manufacturing method of the concrete block plate 4 will be described in detail. In the factory, as shown in FIG. 5, a mold 20 is set in a mold 19 and a mortar base material 21 is poured thereon. The mortar base material 21 is mixed with the cement 1 at a ratio of sand 1 to 3, fine aggregates 1 to 3, and water 0.5 to 1. A lath net for improving strength is laid on the mortar base material 12 (mortar base material layer 9) in the mold 19, and a shirasu balloon 22 is laid thereon as a shirasu material. Furthermore, before the shirasu balloon is solidified, the shirasu finishing material 23 is poured onto the shirasu balloon 22 (shirasu material layer 10). Shirasu finish material 23 is 100% by weight of dry shirasu having an average particle size of 2.5 mm or less, 20-50% by weight of reinforcing material such as gypsum, leopard or hemp, 10-50% by weight of coloring pigment, as required As a binder, 10 to 40% by weight of cement and 10 to 40% by weight of water are mixed.

  As described above, when the mortar base material 21, the shirasu balloon 22, and the shirasu finishing material 23 are sequentially poured onto the mold 20 in the mold 19, the pressure plate 24 is set on the shirasu finishing material 23, From the top, press molding is performed at a predetermined pressure P (about 5 to 10 MPa), and the press state is maintained for a certain time (about 3 to 8 hours). Time) to cure. Since the shirasu material is integrally formed on the concrete block plate 4 in advance, the construction quality can be stabilized without being influenced by the weather and air temperature as compared with the case where the shirasu material is finished in the field construction.

  FIG. 6 is an enlarged plan view of the joint portion between the walls 1 and 1 of the building T. As shown in the figure, the reinforcing bar 3 composed of the vertical bars 5 and the horizontal bars 6 is assembled on the foundation in advance, and then the concrete block plate 4 for the inner wall and the concrete block plate 4 'for the outer wall are assembled using the connecting hardware 13. After that, the reinforced concrete masonry wall can be constructed by filling mortar from above.

  FIG. 7 is an enlarged plan view of the corner of the building T. As shown in the figure, the end portion of the concrete block plate 4 ′ for the outer wall at the protruding corner portion is tapered, and the protruding corner portion is constructed by abutting the tapered portions with each other.

  As described above in detail, according to the present invention, by using the connecting hardware 13 that simultaneously connects the concrete block plates 4 and 4 disposed on both sides of the reinforcing bar 3 and the upper and lower concrete block plates 4 and 4. Since the rebar 3 can be assembled on the foundation 2 in advance, and the concrete block plate 4 can be assembled on both sides later, the rebar 3 and the concrete block plate 4 can be assembled efficiently. The construction period of buildings with reinforced concrete masonry structure can be shortened and construction quality can be improved.

  In addition, the electrical wiring and water supply piping work can be performed before the assembly work of the concrete block plate 4, and the construction inspection of the electrical wiring and the prefabricated reinforcing bars can be performed before the concrete block plate 4 is assembled. These construction errors can be eliminated as much as possible.

  Furthermore, the concrete block plate 4 is preliminarily integrated with the mortar base layer 9 by the press molding of the shira material layer 10 and the shirasu finishing layer 11, thereby being lightweight, excellent in heat insulation, weather resistance, breathability, and moisture absorption and desorption. Reinforced concrete masonry wall structure can be realized.

  The reinforced concrete masonry structure according to the present invention can be used as a reinforced concrete masonry structure in which reinforcing bars are assembled on a foundation in advance and concrete block plates are assembled on both sides later.

The perspective view which shows the construction middle of the wall by the reinforced concrete masonry structure of this invention, Sectional drawing which shows the wall and foundation shown in FIG. The perspective view of the concrete block plate used for construction of the wall shown in FIG. (A) (B) is a perspective view of the connection hardware used for the construction of the wall shown in FIG. (A) is sectional drawing which shows the manufacturing method of the concrete block plate shown in FIG. 1, (B) is the AA arrow sectional drawing, An enlarged plan view at the joint between the walls of the building, It is an enlarged plan view in the protruding corner of the building.

1 wall (reinforced concrete masonry structure)
2 Foundation 3 Reinforcing bar 4, 4 'Concrete block plate 5 Longitudinal bar 6 Horizontal bar 7, 8 Piping 9 Mortar base material layer 10 Shirasu material layer 11 Shirasu finishing layer 12 Engagement receiving groove 13, 13' Connection hardware 14, 14 ', 15 Engagement piece 16 Hardware body 16A Screw hole 17 Screw 18 Mortar 19 Mold frame 20 Mold 21 Mortar base material 22 Shirasu balloon (Shirasu material)
23 Shirasu finish material S Interior space T Building

Claims (10)

  Mainly composed of reinforcing bars assembled on the foundation and concrete block plates assembled on both sides so as to surround the reinforcing bars on the foundation. The upper and lower surfaces of each concrete block plate are provided with connecting receiving grooves, and upper and lower concrete Each of the upper and lower concrete block plates and the concrete block plates on both sides are connected to each other by means of a connecting hardware provided at each end with a plurality of engagement pieces that are simultaneously engaged with each connection receiving groove of the block plate and each connection receiving groove of the concrete block plate on both sides. Reinforced concrete masonry, characterized in that they are connected to each other.   2. The reinforced concrete masonry structure according to claim 1, wherein each of the connection receiving grooves on the upper and lower surfaces of the concrete block plate extends in the longitudinal direction and opens at both ends thereof.   The reinforced concrete masonry structure according to claim 1 or 2, wherein a shirasu material layer is integrated in advance with the mortar base layer of the concrete block plate.   It is a construction method of reinforced concrete masonry that assembles reinforcing bars on the foundation and assembles concrete block plates vertically on both sides surrounding the reinforcing bars on the foundation and fills the internal space with mortar, The connection receiving grooves are provided in the upper and lower surfaces of the concrete block plate in advance, and the connection receiving grooves of the upper and lower concrete block plates and the concrete block plates on both sides of the upper and lower concrete block plates are used by using connection hardware provided with engagement pieces facing up and down. The engaging pieces of the connecting hardware are simultaneously engaged with the connecting receiving grooves so that the upper and lower concrete block plates and the concrete block plates on both sides are connected to each other, and then the interior space is filled with mortar. Reinforced concrete masonry construction method characterized by that.   A concrete block plate used for reinforced concrete masonry according to claim 1, comprising a mortar base material layer and a shirasu material layer integrated with the mortar base material. .   The concrete block plate according to claim 5, wherein the shirasu material layer is composed of a shirasu material layer and a shirasu finishing material layer.   The concrete block plate according to claim 6, wherein the shirasu material layer is mainly composed of a shirasu balloon.   The concrete block plate according to claim 6 or 7, wherein the shirasu finishing material layer includes dry shirasu, shirasu balloon, gypsum, a reinforcing material, and a coloring pigment in the composition.   A mortar base material is poured into a mold, a shirasu material is poured onto the mortar base material in the mold, and then the mortar base material is integrated with the mortar base by applying pressure from above. The concrete block slab according to any one of claims 5 to 8.   It is a connection hardware used for the reinforced concrete masonry structure according to claim 1, which faces up and down at both ends of the hardware body, and each connection receiving groove of the upper and lower concrete block plates and each connection receiving groove of the concrete block plates on both sides. A connecting hardware comprising a plurality of engaging pieces that are simultaneously engaged with each other.

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