Reinforced concrete structure and construction method of the same
The use of precast block-shaped masonry bodies with internal support members and recesses for reinforcing bars simplifies the positioning of reinforcing bars, enhancing construction efficiency and reducing time and waste in reinforced concrete structures.
Patent Information
- Application Number
- JP2023111553
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-06
- Publication Date
- 2025-01-20
AI Technical Summary
Existing reinforced concrete structures require significant effort and time to position longitudinal and intermediate shear reinforcing bars due to the lack of installation grooves, leading to inefficient construction processes.
A reinforced concrete structure using precast block-shaped masonry bodies with internal reinforcing bars and support members, including sleeve joints and recesses, allows for easy positioning of reinforcing bars regardless of direction, facilitated by machine assembly.
Reduces construction time and effort by enabling precise, efficient placement of reinforcing bars, minimizing the need for formwork removal and industrial waste.
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Figure 2025008922000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a reinforced concrete structure and a method for constructing the same. [Background technology]
[0002] Reinforced concrete structures are constructed by pouring concrete into formwork, but installing and removing the formwork requires a lot of time and effort. Therefore, if the formwork is formed using precast blocks and concrete is poured into it, the time and effort required for installing and removing the formwork can be reduced. A known technique for forming a formwork using precast blocks is the building construction method shown in Patent Document 1. In the building construction method of Patent Document 1, a frame consisting of columns and beams is erected inside the foundation, and then concrete blocks and reinforcing bars are appropriately stacked along the frame to form a formwork, and a load-bearing wall is constructed by filling the formwork with grout material consisting of mortar, concrete, etc. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2020-41261 A Summary of the Invention [Problem to be solved by the invention]
[0004] In the concrete block used in the formwork of Patent Document 1, installation grooves are provided for positioning the shear reinforcement (hoop reinforcing bars) that extend horizontally along the wall surface, but installation grooves for vertical reinforcement (axial reinforcement extending vertically) are not provided. Also, intermediate shear reinforcement (intermediate hoop reinforcing bars) that extend perpendicular to the formwork may be installed, but the concrete block of Patent Document 1 does not have installation grooves for the intermediate shear reinforcement. Therefore, there was a problem in that it took a lot of time and effort to position the vertical reinforcement and intermediate shear reinforcement. From this perspective, an object of the present invention is to provide a reinforced concrete structure and a method for constructing the same, which are capable of easily positioning various reinforcing bars regardless of the extending direction of the reinforcing bars. [Means for solving the problem]
[0005] The first invention for solving such problems is a reinforced concrete structure comprising a masonry wall formed by stacking a plurality of block-shaped masonry bodies each having a space for filling a filler therein, a formwork material comprising reinforcing bars arranged inside the masonry wall and the filler material filled in the filling space, and constructed by pouring concrete into a space surrounded by the formwork material. The reinforcing bars comprise a plurality of axial reinforcing bars arranged to extend vertically at a predetermined interval horizontally inside the masonry wall, and a plurality of lateral reinforcing bars arranged to extend horizontally along the wall surface inside the masonry wall, and the masonry wall comprises a first recess for supporting the lateral reinforcing bars and a support member for supporting the axial reinforcing bars from the lateral direction. According to the reinforced concrete structure of the present invention, the horizontal reinforcing bars are easily positioned by being supported by the first recess, and the axial reinforcing bars are easily positioned by being supported by the support members. This allows the positioning of various reinforcing bars to be easily performed regardless of the extending direction of the reinforcing bars, thereby reducing the labor and time required for construction. In addition, the masonry body can be manufactured in a factory and installed by machine, which increases the accuracy of the formwork. Furthermore, since it is not necessary to remove the formwork after the concrete hardens, the labor and time required for construction can be further reduced, and industrial waste can be reduced.
[0006] In the reinforced concrete structure of the present invention, it is preferable that the axial reinforcing bars adjacent to each other in the vertical direction are connected by sleeve joints, and the support member is a sleeve joint holding member that laterally holds the sleeve joint. With this configuration, it is possible to more easily position the axial reinforcing bars. In addition, in the reinforced concrete structure of the present invention, it is preferable that the reinforcing bars further include intermediate horizontal reinforcing bars that have anchoring parts at their ends and are arranged to extend in a direction perpendicular to the horizontal reinforcing bars with the anchoring parts engaged with the horizontal reinforcing bars and protrude from the wall surface of the masonry wall, and that the masonry wall further includes a second recess that supports the intermediate horizontal reinforcing bars. With this configuration, the intermediate horizontal reinforcing bars can be easily positioned. Furthermore, in the reinforced concrete structure of the present invention, it is preferable that the masonry body comprises a pair of plates arranged parallel to each other with a gap therebetween, and a connector that connects the pair of plates. With such a configuration, the masonry body can be easily manufactured and can be efficiently assembled using a robot arm or the like. In the reinforced concrete structure of the present invention, it is preferable that a convex portion is formed on one of the upper and lower surfaces of the plate material, and a concave portion is formed on the other, and the plate material adjacent to each other above and below is positioned by the convex portion engaging with the concave portion. With such a configuration, the masonry bodies can be easily positioned and connected to each other. Furthermore, in the reinforced concrete structure of the present invention, it is preferable that the upper end of the sleeve joint is provided with a funnel-shaped guide member for guiding the lower end of the upper axial reinforcing bar to the upper end of the sleeve joint. With this configuration, the axial reinforcing bar can be smoothly connected to the sleeve joint.
[0007] The second invention for solving the above problem is a method for constructing a reinforced concrete structure as described in claim 1, comprising: a masonry body assembly process for assembling one layer of the masonry bodies; a lateral reinforcing bar installation process for installing the lateral reinforcing bar in the first recess of the masonry body; an axial reinforcing bar installation process for performing the masonry body assembly process and the lateral reinforcing bar installation process for a predetermined number of layers to form the masonry wall body, and then inserting the axial reinforcing bar into the masonry wall body and supporting it with the support member; a filler filling process for filling the masonry wall body with filler; a curing process for developing the strength of the filler; and a concrete pouring process for pouring concrete into the space surrounded by the masonry wall body after the strength of the filler has been developed. According to the method for constructing a reinforced concrete structure of the present invention, the horizontal and axial reinforcing bars can be easily positioned. This allows the positioning of various reinforcing bars to be easily performed regardless of the extending direction of the reinforcing bars, thereby reducing the labor and time required for construction. Furthermore, if the masonry body is assembled and the reinforcing bars are arranged by a machine such as a robot arm, the labor and time required for construction can be significantly reduced. Effect of the Invention
[0008] According to the reinforced concrete structure and the method for constructing the same of the present invention, it is possible to easily position various reinforcing bars regardless of the extending direction of the reinforcing bars. [Brief description of the drawings]
[0009] [Figure 1] 1A, 1B, and 1C are diagrams showing the masonry and reinforcing bars of a reinforced concrete structure according to an embodiment of the present invention, where (a) is a plan view, (b) is a front view, and (c) is a side view. [Diagram 2] 1A and 1B are diagrams showing a masonry wall and reinforcing bars of a reinforced concrete structure according to an embodiment of the present invention, where (a) is a partial cross-sectional view and (b) is a side view. [Diagram 3] 1 is a perspective view showing a masonry body and reinforcing bars of a reinforced concrete structure according to an embodiment of the present invention. [Figure 4] 1 is a side view showing an axial reinforcing bar, a sleeve joint, and a guide member of a reinforced concrete structure according to an embodiment of the present invention. FIG. [Diagram 5] FIG. 2 is a perspective view showing a masonry assembly step of a method for constructing a reinforced concrete structure according to an embodiment of the present invention. [Figure 6] FIG. 2 is a perspective view showing a lateral reinforcing bar installation step of a method for constructing a reinforced concrete structure according to an embodiment of the present invention. [Figure 7] FIG. 2 is a perspective view showing a masonry wall in an axial reinforcing bar installation step of a method for constructing a reinforced concrete structure according to an embodiment of the present invention. [Figure 8] 2 is a perspective view showing the installation state of the axial reinforcement in the axial reinforcement installation step of the method for constructing a reinforced concrete structure according to an embodiment of the present invention. FIG. [Figure 9] FIG. 2 is a perspective view showing the masonry wall volume step of the method for constructing a reinforced concrete structure according to an embodiment of the present invention. [Figure 10] FIG. 2 is a perspective view showing a concrete pouring step in a method for constructing a reinforced concrete structure according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0010] A reinforced concrete structure and a method for constructing the same according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a masonry wall and reinforcing bars of a reinforced concrete structure, where (a) is a plan view, (b) is a front view, and (c) is a side view. FIG. 2 shows a masonry wall and reinforcing bars of a reinforced concrete structure, where (a) is a partial cross-sectional view, and (b) is a side view. FIG. 3 is a perspective view showing the masonry wall and reinforcing bars of a reinforced concrete structure. FIG. 4 is a side view showing axial reinforcing bars, a sleeve joint, and a guide member of a reinforced concrete structure. FIG. 7 is a perspective view showing a masonry wall in an axial reinforcing bar installation process, and FIG. 10 is a perspective view showing a concrete pouring process.
[0011] First, the configuration of the reinforced concrete structure will be described. As shown in Fig. 10, the reinforced concrete structure 1 is constructed by pouring concrete 51 into a space surrounded by formwork materials 2. The formwork materials 2 include a masonry wall body 10, reinforcing bars 30, and filler materials 50. In this embodiment, the reinforced concrete structure 1 is a column 3. The formwork materials 2 are not removed from the formwork, but are left in place to become part of the reinforced concrete structure 1.
[0012] The masonry wall body 10 is a part that constitutes the wall portion of the formwork material 2, and is formed in a cylindrical shape on the outer periphery of the column 3. As shown in Fig. 7, the masonry wall body 10 is formed by piling up a plurality of masonry bodies 11. As shown in Figs. 1 and 3, the masonry body 11 is a block-shaped component having a filling space 12 therein. The filling space 12 is filled with a filling material 50. The masonry body 11 is a precast block formed in advance in a factory or the like, and includes a pair of plate materials 13 and a connecting member 14. The pair of plate materials 13 are members that form wall portions on both sides in the thickness direction of the masonry body 11, and are arranged parallel to each other with a gap therebetween. The plate material 13 is formed, for example, from fiber-reinforced concrete. The plate material 13 has a rectangular shape when viewed from the side, and the lower surface 13b of the plate material 13 of the masonry body 11 adjacent above is placed on the upper surface 13a of the plate material 13. A convex portion 15 that protrudes downward is formed on the lower surface 13b. The convex portion 15 extends over the entire length of the plate material 13 in the longitudinal direction, and has a V-shaped cross section that narrows toward the bottom. The convex portion 15 is formed on the lower surface 13b at a middle portion in the thickness direction of the plate material 13. The upper surface 13a is formed with a concave portion 16 that is recessed downward. The concave portion 16 extends over the entire length of the plate material 13 in the longitudinal direction, and has a V-groove shape that narrows toward the bottom. The concave portion 16 is formed on the upper surface 13a at a middle portion in the thickness direction of the plate material 13. The V-groove shape of the concave portion 16 has a cross-sectional shape equivalent to the V-shaped cross section of the convex portion 15, and the convex portion 15 is engaged with the concave portion 16. When the convex portion 15 is engaged with the concave portion 16, the side surfaces of the upper and lower plate materials 13 become flush with each other.
[0013] The connecting material 14 is a member that connects a pair of plate materials 13, 13, and also serves as a stiffening material for the masonry body 11. Like the plate material 13, the connecting material 14 is formed, for example, from fiber-reinforced concrete. The connecting material 14 is bridged between the opposing side surfaces of the plate materials 13, 13 at both longitudinal ends of the plate material 13. The connecting material 14 is made of a plate material that is rectangular in side view, and extends in a direction perpendicular to the plate material 13. Both longitudinal end faces of the connecting material 14 abut against the side surfaces of the plate material 13.
[0014] The reinforcing bars 30 are arranged inside the masonry wall body 10. A part of the reinforcing bars 30 (in this embodiment, the tip side part of the intermediate horizontal reinforcing bar 33) protrudes from the side surface of the plate material 13. The reinforcing bars 30 include axial reinforcing bars 31, horizontal reinforcing bars 32, and intermediate horizontal reinforcing bars 33. The axial rebars 31 are rebars that extend vertically inside the masonry wall body 10, and are arranged horizontally at predetermined intervals. The axial rebars 31 serve as the main rebars of the columns 3. The axial rebars 31 are arranged in the longitudinal middle of the plate material 13, and are inserted into the filling space 12 at the middle of the pair of connecting members 14, 14. The axial rebars 31, 31 adjacent to each other in the vertical direction are connected by sleeve joints 34. The sleeve joint 34 has a cylindrical shape into which the end of the axial reinforcing bar 31 can be inserted, and extends in the vertical direction. The sleeve joint 34 extends across the multiple masonry bodies 11 stacked in the vertical direction at the upper end of the masonry wall body 10. The sleeve joint 34 is arranged across four masonry bodies 11, one above the other. The sleeve joint 34 is arranged in a coaxial position with the axial reinforcing bar 31. The axial reinforcing bar 31 is positioned relative to the masonry wall body 10 via the sleeve joint 34. The sleeve joint 34 is fixed to the masonry wall body 10 by a pair of support members 23. The pair of support members 23 are sleeve joint holding members that hold the sleeve joint 34 from the lateral direction (both sides in the longitudinal direction of the plate material 13). The support members 23 are fixed to the opposing side surfaces of the pair of connecting members 14, 14, respectively, and extend from both lateral sides toward the inner sleeve joint 34. The tip surface 24 of the support member 23 has a curved shape with the same curvature as the outer circumferential surface of the sleeve joint 34, and abuts against the sleeve joint 34 from the lateral direction.
[0015] As shown in FIG. 4, a guide member 35 is provided at the upper end of the sleeve joint 34. The guide member 35 is a funnel-shaped member that guides the lower end of the upper axial reinforcing bar 31 to the upper end of the sleeve joint 34 when connecting the axial reinforcing bars 31, 31 adjacent to each other vertically. The guide member 35 includes a funnel portion 36a and a connection portion 36b. The funnel portion 36a is formed in a truncated cone shape that widens as it goes upward from the connection portion 36b, and guides the lower end of the axial reinforcing bar 31 to the center of the guide member 35 by placing it on its inner surface. The connection portion 36b has a cylindrical shape, and the upper end of the sleeve joint 34 is fitted inside the connection portion 36b.
[0016] As shown in Figs. 1 to 3, the horizontal reinforcing bars 32 are reinforcing bars extending horizontally along the wall surface inside the masonry wall 10. In this embodiment, the horizontal reinforcing bars 32 are strip reinforcing bars along the outer peripheral surface of the column 3. The horizontal reinforcing bars 32 extend horizontally and are arranged parallel to the plate material 13. The horizontal reinforcing bars 32 are supported by first recesses 21 formed in the connecting members 14. The first recesses 21 are groove-shaped portions having a U-shape in side view, and are formed in the upper edge portion of the connecting members 14. The first recesses 21 are formed on one end side of the connecting members 14 in the longitudinal direction (closer to the plate material 13 located on the outer side of the column 3). The horizontal reinforcing bars 32 are bridged across the first recesses 21 formed in each connecting member 14.
[0017] The intermediate horizontal reinforcing bars 33 are arranged so as to extend in a direction perpendicular to the horizontal reinforcing bars 32. The base end of the intermediate horizontal reinforcing bars 33 is located inside the masonry wall 10, and the tip end portion of the intermediate horizontal reinforcing bars 33 protrudes from the wall surface of the masonry wall 10 (the plate material 13 on the inside of the column 3) toward the inside of the column 3. The intermediate horizontal reinforcing bars 33 extend in a direction perpendicular to each other from the four sides of the outer periphery of the column 3 and are arranged in a lattice shape, and serve as intermediate strip reinforcing bars of the column 3. An anchoring portion 37 is formed at the base end of the intermediate horizontal reinforcing bars 33. The side of the anchoring portion at the base end of the intermediate horizontal reinforcing bars 33 is placed on the upper side of the horizontal reinforcing bars 32. The outer surface of the anchoring portion 37 abuts against the surface of the plate material 13 located on the outside of the column 3. The inner surface of the anchoring portion 37 is engaged with the horizontal reinforcing bars 32, and is configured so that the intermediate horizontal reinforcing bars 33 do not slip out to the inside of the column 3. The intermediate transverse reinforcing bar 33 is supported in a second recess 22 formed in the plate material 13. The second recess 22 is a groove-like portion having a U-shape in a side view, and is formed in the upper edge portion of the plate material 13 located inside the column 3. The second recess 22 is formed at a position offset from the longitudinal middle portion of the plate material 13 so that the intermediate transverse reinforcing bar 33 does not interfere with the axial reinforcing bar 31 and the sleeve joint 34. The height of the bottom of the second recess 22 is formed to be equal to the height of the upper surface of the intermediate transverse reinforcing bar 33 supported in the first recess 21.
[0018] The filler 50 is a grout material such as non-shrink mortar, which is filled into the filling space 12 of the masonry body 11. The filling space 12 is formed between the plate materials 13, 13. The filler 50 is filled after the reinforcing bars 30 are arranged inside the masonry wall body 10 formed by piling up the masonry bodies 11. The concrete 51 is poured into the portion surrounded by the formwork material 2 after the strength of the filler 50 is developed.
[0019] Next, a method for constructing the reinforced concrete structure 1 will be described. This method includes a masonry body assembly process, a horizontal reinforcing bar installation process, an intermediate horizontal reinforcing bar installation process, an axial reinforcing bar installation process, a filler filling process, a curing process, a masonry wall construction process, and a concrete pouring process. Figure 5 is an oblique view showing the masonry assembly process in the method of constructing a reinforced concrete structure, Figure 6 is an oblique view showing the horizontal reinforcing bar installation process, Figure 7 is an oblique view showing the masonry wall in the axial reinforcing bar installation process, Figure 8 is an oblique view showing the installed state of the axial reinforcing bar in the axial reinforcing bar installation process, Figure 9 is an oblique view showing the masonry wall construction process, and Figure 10 is an oblique view showing the concrete pouring process.
[0020] As shown in FIG. 5, the masonry body assembly process is a process of assembling masonry bodies 11, which have been formed in advance in a factory or the like, one layer at a time. In the masonry body assembly process, a plurality of masonry bodies 11 are assembled into a rectangular frame shape along the outer peripheral shape of the column 3. The masonry bodies 11 of the second and subsequent layers are installed so that the convex parts 15 formed on the lower surfaces 13b of the plate materials 13 of the upper layer masonry bodies 11 are inserted into the concave parts 16 formed on the upper surfaces 13a of the plate materials 13 of the lower layer masonry bodies 11. At the four corners of the column 3, the openings at the ends of the masonry bodies 11 are blocked with plate-shaped blocking members 26. The blocking members 26 are arranged in an L-shape on the extension lines of the outer plate materials 13 so as to cover the corners.
[0021] The horizontal reinforcing bar installation step is a step of installing horizontal reinforcing bars 32 inside the masonry body 11, as shown in FIG. 6. In the horizontal reinforcing bar installation step, the rectangular frame-shaped horizontal reinforcing bars 32 are installed across the first recesses 21 (see FIG. 5) formed in the connecting members 14 of the masonry body 11. This positions the horizontal reinforcing bars 32. The rectangular frame-shaped horizontal reinforcing bars 32 are formed in advance by bending reinforcing bars, and are inserted into the masonry wall body 10 from above. The horizontal reinforcing bars 32 are then arranged in a strip shape along the masonry wall body 10. The rectangular frame-shaped horizontal reinforcing bars 32 may be formed by combining a plurality of reinforcing bars. The intermediate horizontal reinforcing bar installation process is a process of installing the intermediate horizontal reinforcing bar 33 inside the masonry body 11. In the intermediate horizontal reinforcing bar installation process, the intermediate horizontal reinforcing bar 33 is installed in the second recess 22 formed in the inner plate material 13 of the masonry body 11, and the base end of the intermediate horizontal reinforcing bar 33 is installed on the horizontal reinforcing bar 32. At this time, the fixing part 37 is abutted against the inner surface of the outer plate material 13, and the lower part of the fixing part 37 is positioned between the plate material 13 and the horizontal reinforcing bar 32. As a result, the fixing part 37 is engaged with the horizontal reinforcing bar 32, and the intermediate horizontal reinforcing bar 33 is positioned. Then, the tip part of the intermediate horizontal reinforcing bar 33 protrudes from the inner plate material 13 toward the inside of the column 3. Thereafter, the masonry assembly step, the horizontal reinforcing bar installation step, and the intermediate horizontal reinforcing bar installation step are repeated for a predetermined number of stages to form a masonry wall body 10 of a predetermined height, as shown in FIG.
[0022] The axial reinforcing bar installation process is a process of inserting and installing the axial reinforcing bar 31 into the masonry wall body 10. In the axial reinforcing bar installation process, a sleeve joint 34 is installed on the upper end of the axial reinforcing bar 31, and the axial reinforcing bar 31 is inserted into the masonry wall body 10 from above. The lower end of the axial reinforcing bar 31 is protruded downward from the lower end of the masonry wall body 10 by a predetermined length (the length inserted into the lower sleeve joint 34). When the sleeve joint 34 is inserted into the upper end of the masonry wall body 10, it is clamped and fixed between the tip faces 24 of the support members 23. This allows the axial reinforcing bar 31 to be positioned. Then, a guide member 35 is attached to the upper end of the sleeve joint 34.
[0023] The filler filling step is a step of filling the masonry wall body 10 with a filler 50, as shown in Fig. 8. In the filler filling step, a grout material (filler 50) is filled into the filling space 12 from the top of the masonry wall body 10. The filler 50 is filled up to the upper end of the masonry wall body 10. The curing step is a step of curing the filler 50. In the curing step, the filler 50 is cured until it develops its strength.
[0024] As shown in FIG. 9, the masonry wall stacking process is a process of stacking a newly formed masonry wall 10 on a lower masonry wall 10. In the masonry wall stacking process, the sleeve joint 34 of the lower masonry wall 10 is filled with grout in advance. The upper masonry wall 10 is lifted and lowered toward the lower masonry wall 10. Then, the lower end of the axial reinforcing bar 31 protruding downward from the upper masonry wall 10 is inserted into the guide member 35 at the upper end of the lower masonry wall 10. The lower end of the axial reinforcing bar 31 is guided to the center of the guide member 35 along the inner surface of the funnel portion 36a and inserted into the lower sleeve joint 34. Furthermore, when the upper masonry wall 10 is lowered, the convex portion 15 at the lower end of the upper masonry wall 10 is inserted into the concave portion 16 at the upper end of the lower masonry wall 10, and the masonry wall 10 is positioned.
[0025] 10, the concrete pouring process is a process of pouring concrete 51 into the space surrounded by the masonry wall body 10 (inside the formwork material 2). In the concrete pouring process, the concrete 51 is poured from the top of the masonry wall body 10 up to the upper end of the masonry wall body 10. Thereafter, the concrete 51 is cured until it develops its strength, and the pillar 3 is completed.
[0026] The effect of the reinforced concrete structure 1 and the method for constructing the same according to the present embodiment will be described below. According to the reinforced concrete structure 1 and the method for constructing the same according to the present embodiment, the horizontal reinforcing bars 32 are easily positioned by being supported by the first recess 21. The axial reinforcing bars 31 are easily positioned by being supported by the support member 23 via the sleeve joint 34. The intermediate horizontal reinforcing bars 33 are easily positioned by being supported by the second recess 22, and the base end is placed on the horizontal reinforcing bars 32 and the fixing portion 37 is abutted against the surface of the plate material 13. In this way, the positioning of various reinforcing bars can be easily performed regardless of the extending direction of the reinforcing bars 30, so that the construction labor and time can be reduced and the positioning accuracy of the reinforcing bars 30 can be improved. Furthermore, if the assembly of the masonry body 11 and the arrangement of the reinforcing bars 30 are performed by a machine such as a robot arm, the construction labor and time can be significantly reduced. Since the masonry bodies 11 can be manufactured in a factory, the dimensional accuracy is high, and since a robot arm can be used for mechanical construction when arranging a plurality of masonry bodies 11, the accuracy of the formwork material 2 can be improved. Furthermore, since it is not necessary to remove the formwork after the concrete 51 has hardened, the construction labor and time can be further reduced, and industrial waste can also be reduced.
[0027] In addition, adjacent axial rebars 31, 31 in the vertical direction are connected by sleeve joints 34, and the support members 23, 23 clamp and fix the sleeve joints 34 from the side, so that fewer fixing positions and support members 23 are required, making it even easier to position the axial rebars 31. Furthermore, since a guide member 35 is provided at the upper end of the sleeve joint 34, the connection between the axial reinforcing bar 31 on the upper side and the sleeve joint 34 on the lower side can be smoothly performed. In addition, since the masonry body 11 is composed of a pair of plate materials 13 and a pair of connecting members 14, 14, the masonry body 11 can be manufactured easily and can be efficiently assembled using a robot arm, etc. Furthermore, since the connecting members 14 also function as stiffening members, the rigidity of the masonry body 11 is increased. A convex portion 15 is formed on the underside of the plate material 13, and a concave portion 16 is formed on the upper surface of the plate material 13. By engaging the convex portion 15 with the concave portion 16, adjacent plate materials 13, 13 are positioned relative to each other above and below, so that the masonry wall bodies 10, 10 can be easily positioned and connected relative to each other.
[0028] Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and appropriate design changes are possible without departing from the spirit of the present invention. For example, in the above embodiment, the masonry wall body 11 is formed into a rectangular frame shape to be used as the formwork material 2 for the columns 3, but the present invention is not limited to this. A pair of masonry wall bodies may be arranged to face each other and used as formwork material for constructing a wall. In addition, in the above embodiment, the convex portion 15 is formed on the lower surface of the plate material 13, and the concave portion 16 is formed on the upper surface of the plate material 13, but this is not limited to this. A concave portion may be formed on the lower surface of the plate material, and a convex portion may be formed on the upper surface of the plate material. [Explanation of symbols]
[0029] 1. Reinforced concrete structure 2 Formwork material 10 Masonry Walls 11 Masonry 12 Filling space 13 Board material 14 Connecting material 21 First recess 22 Second recess 23 Support member (sleeve joint holding member) 30 Steel Bar 31 Axial reinforcement 32 Transverse reinforcement 33 Intermediate transverse bars 34 Sleeve joint 35 Guide member 37 Fixing section 50 Filler 51 Concrete
Claims
1. A reinforced concrete structure is constructed by pouring concrete into a space surrounded by the formwork material, the structure comprising a masonry wall formed by stacking a plurality of block-shaped masonry bodies each having a space for filling a filler therein, a formwork material including reinforcing bars arranged inside the masonry wall and the filler material filled into the space, the formwork material comprising: The reinforcing bars include a plurality of axial reinforcing bars arranged to extend vertically at predetermined intervals within the masonry wall body, and a plurality of transverse reinforcing bars arranged to extend horizontally along a wall surface within the masonry wall body, The masonry wall body includes a first recess for supporting the transverse reinforcing bars and a support member for supporting the axial reinforcing bars from the lateral direction. A reinforced concrete structure.
2. The axial reinforcing bars adjacent to each other in the vertical direction are connected by sleeve joints, The support member is a sleeve joint holding member that laterally holds the sleeve joint.
2. The reinforced concrete structure according to claim 1 .
3. The reinforcing bars further include intermediate transverse reinforcing bars having anchoring portions at their ends and extending in a direction perpendicular to the transverse reinforcing bars with the anchoring portions engaged with the transverse reinforcing bars, the intermediate reinforcing bars protruding from the wall surface of the masonry wall, The masonry wall further includes a second recess for supporting the intermediate transverse reinforcement.
2. The reinforced concrete structure according to claim 1 .
4. The masonry structure includes a pair of plate members arranged parallel to each other with a gap therebetween, and a connecting member connecting the pair of plate members.
2. The reinforced concrete structure according to claim 1 .
5. A convex portion is formed on one of the lower surface and the upper surface of the plate material, and a concave portion is formed on the other surface, The convex portion is engaged with the concave portion, thereby positioning the vertically adjacent plate members relative to each other.
5. A reinforced concrete structure according to claim 4.
6. A funnel-shaped guide member is provided at the upper end of the sleeve joint to guide the lower end of the upper axial reinforcing bar to the upper end of the sleeve joint.
3. The reinforced concrete structure according to claim 2.
7. 2. A method for constructing a reinforced concrete structure according to claim 1, comprising the steps of: a masonry assembly process for assembling one level of the masonry; a transverse reinforcing bar installation step of installing the transverse reinforcing bar in the first recess of the masonry body; a step of forming the masonry wall by performing the masonry assembling step and the transverse reinforcing bar installing step for a predetermined number of stages, and then inserting the axial reinforcing bar into the masonry wall and supporting it with the support member; A filler filling step of filling the masonry wall with a filler; A curing process for developing the strength of the filler; and a concrete pouring step of pouring concrete into the space surrounded by the masonry wall in which the strength of the filler has been exerted. A method for constructing a reinforced concrete structure.
Citation Information
Patent Citations
Construction method of building
JP2020041261A