Masonry structure and construction method therefor

Abstract

To provide a masonry structure and its construction method that do not require the construction of large-scale reinforcement structures around a masonry structure under construction.SOLUTION: A masonry structure 100 comprises: a first block 1 having a pair of face shells 11, 12 and a web 13 spanning between plate surfaces of the pair of face shells 11, 12; a second block 2 positioned adjacent to the first block 1; and a metal fitting 4 regulating so that the distance between the first block 1 and the second block 2 does not increase. The metal fitting 4 regulates the distance between the web 13 and the second block 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to masonry construction and its construction method. [Background technology]

[0002] For example, retaining walls and fences are sometimes constructed by assembling concrete blocks horizontally and vertically. In such retaining walls and fences that require particularly high strength, rebar is sometimes passed through the voids inside the concrete blocks when constructing the vertical structure of the retaining wall or fence, and after the vertical structure of the retaining wall or fence is constructed, concrete is then further filled (poured) into the voids.

[0003] Patent Document 1 discloses a concrete block for concrete pouring. In this concrete block for concrete pouring, web shells that connect two opposing, parallel face shells are grounded at both ends and the center. The top and bottom of each web shell are each provided with a curved notch. In this concrete block for concrete pouring, after the blocks are laid, concrete is poured into the cavities within the blocks from above the masonry.

[0004] Patent Document 2 discloses a framed concrete block and a method for laying the block. The front and rear face cells of this framed concrete block are connected by two wave cells, and a cavity is provided between the wave cells for passing reinforcing bars. The top and bottom surfaces of the wave cells of this framed concrete block are U-shaped, and the length of the face cells is an integral multiple (e.g., twice) of the height. This framed concrete block alternates between vertically laid sections and vertically laid sections, and allows for horizontal reinforcement and vertical reinforcement, plus diagonal reinforcement. The concrete blocks are laid in a molded state. The concrete blocks are constructed while adjusting their height with joint mortar. Reinforcement is placed in the hollow sections and fresh concrete is filled in to construct a masonry structure.

[0005] Patent Document 3 discloses a method for connecting bricks and concrete blocks. In this method, connecting grooves are provided in the bricks and concrete blocks, and the bricks and concrete blocks are connected with connecting tools. This connecting method is dry construction, i.e., it is constructed without using mortar or concrete blocks, so it is said that no drying time is required. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Utility Model Application Publication No. 6-79914 [Patent Document 2] Japanese Patent Application Publication No. 7-259214 [Patent Document 3] Japanese Patent Application Laid-Open No. 2001-207565 Summary of the Invention [Problem to be solved by the invention]

[0007] As disclosed in Patent Documents 1 and 2, when concrete is filled into the voids inside concrete blocks after constructing a masonry structure such as a retaining wall or a fence, the pressure (load) of the concrete can cause separation between the blocks before the concrete hardens. This separation is particularly likely to occur between horizontally adjacent blocks. To prevent this separation, for example, it is necessary to provide strong reinforcement to the masonry structure under construction until the concrete hardens. Strong reinforcement of the masonry structure requires the construction of large-scale reinforcing structures around the masonry structure, which is a burden. Moreover, masonry structures such as retaining walls and fences are often constructed on the boundary between land owned by different owners, making it difficult to construct reinforcing structures around the masonry structure under construction. Therefore, a masonry structure and a construction method therefor that do not require the construction of large-scale reinforcing structures around the masonry structure under construction are desired.

[0008] The present invention has been made in view of the above circumstances, and its object is to provide a masonry structure and a construction method thereof that do not require the construction of a large-scale reinforcing structure around the masonry structure being constructed. [Means for solving the problem]

[0009] To achieve the above object, the masonry structure according to the present invention comprises: a first block having a pair of face shells and a web stretched between plate surfaces of the pair of face shells; a second block disposed adjacent to the first block; a metal fitting that regulates the distance between the first block and the second block so that they do not become too far apart, The metal fitting regulates the distance between the web and the second block.

[0010] The masonry structure according to the present invention further comprises: The metal fittings are: a bridging portion spanning from the first block to the second block; a first plate portion supported on a side of the first block in the bridge portion, The first plate portion is The bridge portion is disposed so as to intersect with the extending direction of the bridge portion, The plate surface on the side closer to the second block may be in contact with the plate surface of the web on the opposite side to the side closer to the second block.

[0011] The masonry structure according to the present invention further comprises: the metal fitting has a fastener that is threadably connected to the first block side of the bridge portion, The fastener may regulate the distance between the first plate portion and the second block in the extending direction.

[0012] The masonry structure according to the present invention further comprises: The web has a notch or a through hole formed along a direction intersecting the plate surface, The bridge portion may be fitted into the notch portion or inserted into the through hole.

[0013] The masonry structure according to the present invention further comprises: The first plate portion has a through hole penetrating a plate surface, the bridge portion is inserted into the through hole, The first plate portion may be disposed closer to the second block than the fastener.

[0014] The masonry structure according to the present invention further comprises: The metal fittings are: a second plate portion supported on a side of the second block at the bridge portion, A part of the second block may be sandwiched between the first block and the second plate portion to regulate the distance between the first block and the second block.

[0015] The masonry structure according to the present invention further comprises: the first block is a concrete block; a space between the pair of face shells in the first block is filled with concrete; The metal fitting may be embedded in the concrete.

[0016] The masonry structure according to the present invention further comprises: The second block may have the same shape as the first block.

[0017] The masonry structure according to the present invention further comprises: The first plate portion may have an upper end or a lower end abutting against the web.

[0018] The masonry structure according to the present invention further comprises: The cutout portion may be disposed at a center portion in a thickness direction of the first block.

[0019] In order to achieve the above object, the masonry construction method according to the present invention comprises: The above masonry construction method, The method includes a first step of arranging unit structures including the first block, the second block, and the metal fitting along a horizontal direction to construct a first horizontal row structure.

[0020] The masonry construction method according to the present invention comprises: A second step may be included in which the unit structures are constructed on the horizontal row structures.

[0021] The masonry construction method according to the present invention comprises: In the second step, the unit structures may be arranged in the horizontal direction along the columns of the first horizontal column structure to construct a second horizontal column structure. [Effects of the Invention]

[0022] According to the present invention, it is possible to provide a masonry structure and a construction method thereof that do not require the construction of a large-scale reinforcing structure around the masonry structure being constructed. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is an explanatory diagram of a masonry structure and its unit structure according to the present embodiment. FIG. [Figure 2] FIG. 1 is a front view of a masonry structure according to this embodiment. [Figure 3] FIG. [Figure 4] FIG. 4 is a side view of the first block as viewed along the width direction. [Figure 5] FIG. [Figure 6] FIG. 2 is a front view of the plate surface of the first plate portion. [Figure 7] FIG. 10 is a view of the metal fitting as viewed from the first plate portion side along the axial direction of the bridge portion. [Figure 8] 8 is a cross-sectional view of the unit structure shown in FIG. 1 taken along the line VIII-VIII. [Figure 9] This is the cross section of the masonry structure shown in Figure 2, taken along the arrows IX-IX. [Figure 10] 1 is an explanatory diagram of another masonry structure and its unit structure; [Figure 11] FIG. 10 is a side view of the third block. [Figure 12] FIG. 10 is a top view of another metal fitting. DETAILED DESCRIPTION OF THE INVENTION

[0024] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A masonry construction and a construction method thereof according to an embodiment of the present invention will be described with reference to the drawings.

[0025] 1 shows an explanatory diagram of a masonry structure 100 according to this embodiment and its unit structure 9. First, an outline of the masonry structure 100 and its construction method will be described.

[0026] As shown in Figure 1, the masonry structure 100 comprises a first block 1 having a pair of face shells 11, 12 and a web 13 spanning between the plate surfaces of the pair of face shells 11, 12, a second block 2 arranged adjacent to the first block 1, and a metal fitting 4 that regulates the distance between the first block 1 and the second block 2 so that they do not become too large, and the metal fitting 4 regulates the distance between the web 13 and the second block 2.

[0027] In the masonry structure 100, the metal fittings 4 regulate the distance between the web 13 and the second block 2, thereby regulating the distance between the first block 1 and the second block 2 so that they do not become too far apart.

[0028] The construction method of this embodiment is a construction method for the above-mentioned masonry structure 100, and includes a first step of arranging unit structures 9 each including a first block 1, a second block 2, and metal fittings 4 along the horizontal direction to construct a first-stage horizontal row structure L (an example of a first horizontal row structure).

[0029] The construction method according to this embodiment does not require the construction of a large-scale reinforcing structure around the masonry structure 100 under construction.

[0030] The masonry structure 100 and its construction method will be described in detail below. Figure 1 is an explanatory diagram showing the structure of the masonry structure 100 when viewed vertically from above. Figure 2 is a front view of the masonry structure 100 when viewed along its thickness. Figure 3 is a top view of the first block 1 when viewed vertically from above.

[0031] In Figures 1 and 3, the thickness direction of the masonry structure 100 is indicated by direction D. In Figures 1 and 2, the width direction of the masonry structure 100, i.e., the horizontal extension direction, is indicated by direction W. In Figure 2, the height direction of the masonry structure 100 is indicated by direction H. In this embodiment, direction H is the same as the vertical direction.

[0032] As shown in FIG. 1, the masonry structure 100 includes, as its structural unit, a unit structure 9 including a first block 1, another block (a second block 2 is an example of another block) arranged in a straight line adjacent to the first block 1, and metal fittings 4. The masonry structure 100 may include two or more unit structures 9. The masonry structure 100 may also include unit structures other than the unit structure 9. As shown in FIG. 2, the masonry structure 100 may be formed by stacking the first block 1 and the second block 2 vertically. Hereinafter, the first block 1 and the second block 2 may be collectively referred to simply as the block.

[0033] As shown in FIGS. 1 and 2, the blocks may be spaced apart by joints 8 filled with mortar or the like.

[0034] As shown in Figures 1 and 3, the first block 1 is a so-called formwork block. The first block 1 may be a concrete block. As an example, the first block 1 has a pair of face shells 11, 12 and two webs 13, 14 stretched between the plate surfaces of the pair of face shells 11, 12. The first block 1 may have only the web 13, or may have another web in addition to the webs 13, 14.

[0035] The first block 1 has an outer shape that conforms to a rectangular parallelepiped. When constructing the masonry structure 100, the first block 1 is placed with its longest side (hereinafter referred to as the long side) aligned in the width direction of the masonry structure 100. The width of the first block 1 refers to the length of the long side.

[0036] The first block 1 may be arranged so that the face including the long side and the shortest side (hereinafter referred to as the short side) faces downward and upward in the vertical direction. The short side is the side that runs along the thickness direction of the masonry structure 100 when the masonry structure 100 is constructed using the first block 1. The thickness direction of the first block 1 is the same as the thickness direction of the masonry structure 100, and the thickness of the first block 1 refers to the length of the short side.

[0037] In the first block 1, the side that is shorter than the long side and longer than the short side will be referred to as the middle side hereinafter. The middle side is the side that runs along the vertical direction when the masonry structure 100 is constructed using the first block 1. In other words, the height of the first block 1 is the length of the middle side. In the first block 1, the length of the long side should be an integer multiple (for example, twice) of the length of the middle side.

[0038] The face shells 11 and 12 are rectangular, parallel, plate-like members. When the masonry structure 100 is viewed along the thickness direction, the face shells 11 and 12 are arranged on the front side or the back side in the thickness direction. Figure 1 shows an example in which the face shell 11 is arranged on the front side and the face shell 12 is arranged on the back side.

[0039] The webs 13, 14 are plate-like members stretched across the face shells 11, 12. In this embodiment, the webs 13, 14 are plate-like members that are perpendicular to the plate surfaces of the face shells 11, 12 and extend in the vertical direction. The webs 13, 14 are spaced apart in the width direction. The webs 13, 14 are preferably positioned inward in the width direction relative to the ends of the first block 1 in the width direction.

[0040] The region between the face shells 11 and 12 in the first block 1, excluding the webs 13 and 14, is a gap (space). The face shells 11 and 12 and the webs 13 and 14 may be integrally molded.

[0041] Fig. 4 shows a side view of the first block 1 as viewed along the width direction. Fig. 4 also shows a view of the first block 1 as viewed along the width direction from the side of the web 13. In this embodiment, the upper side of the web 13 is a curved side 131 that is curved downward. The lower side of the web 13 is a curved side 132 that is curved upward. The curved side 131 has a notch 133 that is recessed downward.

[0042] The bottom of the notch 133 is located at or higher than the center in the height direction of the first block 1. The notch 133 is disposed in the center of the first block 1 in the thickness direction.

[0043] As shown in FIG. 3, the cutout portion 133 has a groove shape formed along the width direction, that is, along a direction intersecting the plate surface of the web 13.

[0044] Web 14 may have a shape similar to that of web 13. In this embodiment, web 14 is plane-symmetrical in the width direction to web 13. Web 14 has curved sides and a cutout 134 that correspond to curved sides 131, 132 and cutout 133 of web 13.

[0045] 1 is an example of a block adjacent to the first block 1. The second block 2 may have a different shape or structure from the first block 1, but the second block 2 is at least the same height as the first block 1. In this embodiment, the second block 2 has the same structure and shape as the first block 1.

[0046] The second block 2 has its widthwise end adjacent to the widthwise end of the first block 1. Fig. 1 illustrates an example in which second blocks 2, 2 (second blocks 2A, 2B) having the same structure as the first block 1 are arranged on both sides of the first block 1 in the width direction. In the following description, unless otherwise specified, the second block 2 will be described with reference to the second block 2A.

[0047] The second block 2 may have face shells 21, 22 and webs 23, 24 that correspond to the face shells 11, 12 and webs 13, 14 of the first block 1. The webs 23, 24 may have cutouts 233, 243 formed therein.

[0048] 1, the metal fitting 4 is a member that regulates the distance between the first block 1 and the second block 2. Specifically, the metal fitting 4 regulates the distance between the web 13 or web 14 of the first block 1 and the second block 2 so that the distance does not increase.

[0049] The metal fitting 4 has a bridging portion 40 spanning from the first block 1 to the second block 2, a first plate portion 41 supported on the first block side of the bridging portion 40, a second plate portion 42 supported on the second block 2 side of the bridging portion 40, and a fastener 43 threadably connected to the first block 1 side of the bridging portion 40.

[0050] In addition to the bridging portion 40, the first plate portion 41, the second plate portion 42 and the fastener 43, the metal fitting 4 may further include a fastener 44 that is threadably connected to the side of the second block 2 at the bridging portion 40, and this embodiment describes a case where the metal fitting 4 has the fastener 44.

[0051] FIG. 5 shows a top view of the metal fitting 4. The bridging portion 40 is a rod- or plate-shaped member. In this embodiment, the bridging portion 40 is shown as a straight rod-shaped member, as an example. The bridging portion 40 has male threads 401, 402 formed at both ends in the extension direction thereof, which threadably connect fasteners 43, 44. FIG. 5 shows an example in which the bridging portion 40 is a straight cut bolt, and the male threads 401 and 402 are continuous. An example of the fasteners 43, 44 is a hexagonal nut or other nut. When the metal fitting 4 is used to regulate the distance between the first block 1 and the second block 2 (for example, the second block 2A), the bridging portion 40 is fitted into the cutouts 133, 234 and is stretched across the web 13 of the first block 1 and the web 24 of the second block 2A.

[0052] The bridging portion 40 is disposed in the center of the first block 1 in the height direction while being fitted into the cutout portions 133 and 234. Furthermore, the bridging portion 40 is disposed in the center of the first block 1 in the thickness direction while being fitted into the cutout portions 133 and 234. By disposing the bridging portion 40 in the center of the first block 1 in the height direction or the thickness direction, when the metal fitting 4 regulates the distance between the first block 1 and the second block 2, the metal fitting 4 can receive, along the axial direction of the bridging portion 40, a force acting between the first block 1 and the second block 2 in a direction that increases the distance between the first block 1 and the second block 2. This regulates the distance between the first block 1 and the second block 2 and also regulates the position of the second block 2 not to shift relative to the first block 1 (for example, not to shift in a direction deviating from the axial direction of the bridging portion 40). Furthermore, the distance between the first block 1 and the second block 2 can be reliably regulated not to increase without excessively increasing the strength of the bridging portion 40.

[0053] In addition, when the distance between the first block 1 and the second block 2B is regulated by the metal fittings 4, as in the case of the first block 1, the second block 2A and the metal fittings 4 described above, the bridging portion 40 is fitted into the cutout portions 134, 233 and spans from the web 14 of the first block 1 to the web 23 of the second block 2B.

[0054] 6 shows a front view of the plate surface of the first plate portion 41. As shown in FIG. 6, the first plate portion 41 is, for example, a rectangular plate-shaped member. The first plate portion 41 may have a through-hole 41a that penetrates the plate surface. The through-hole 41a may be located, for example, in the center of the plate surface of the first plate portion 41.

[0055] As shown in Fig. 1, the first plate portion 41 is arranged so as to intersect with the extending direction of the bridging portion 40, i.e., the width direction. In the present embodiment, as shown in Fig. 5, the first plate portion 41 is arranged so as to intersect with the extending direction of the bridging portion 40, with the end portion of the bridging portion 40 on the side where the male thread portion 401 is formed being inserted into the through hole 41a (see Fig. 6). The first plate portion 41 is movable along the axial direction of the bridging portion 40, with the end portion of the bridging portion 40 being inserted into the through hole 41a.

[0056] The first plate portion 41 is disposed closer to the center of the bridging portion 40 than the fastener 43. That is, as shown in Fig. 1, the first plate portion 41 is disposed closer to the second block 2 (second block 2A) across which the bridging portion 40 is suspended than the fastener 43. The first plate portion 41 is disposed between the fastener 43 and the web 13.

[0057] 7 shows the metal fitting 4 as viewed from the first plate portion 41 side along the axial direction of the bridging portion 40. As shown in Fig. 7, the diameter of the through hole 41a is smaller than the diameter of the fastener 43. In addition, the diameter of the through hole 41a is the same as or larger than the diameter of the bridging portion 40.

[0058] The fasteners 43 restrict the first plate portion 41 from moving in the axial direction of the bridging portion 40, but restrict movement in the opposite direction from the web 13. As a result, as shown in FIG. 1 , the fasteners 43 restrict the first plate portion 41 from moving in the direction away from the second block 2 (second block 2A) across which the bridging portion 40 is suspended.

[0059] In this embodiment, the second plate portion 42 has the same shape as the first plate portion 41. The second plate portion 42 is disposed closer to the center of the bridging portion 40 than the fastener 44, i.e., closer to the second block 2 (second block 2B) than the fastener 44. The second plate portion 42 is disposed between the fastener 44 and the web 24.

[0060] The second plate portion 42 is restricted by the fastener 44 from moving in the axial direction of the bridging portion 40, but is restricted from moving in the opposite direction from the web 24. As a result, as shown in FIG. 1 , the second plate portion 42 is restricted by the fastener 44 from moving in the direction away from the first block 1.

[0061] As shown in FIG. 1, the first plate portion 41 has a plate surface on the side closer to the second block 2 (second block 2A) across which the bridging portion 40 is suspended, which abuts against a plate surface of the web 13 of the first block 1 opposite to the side closer to the second block 2 (second block 2A). This restricts the first block 1 from moving (separating) away from the second block 2 (second block 2A).

[0062] 8 is a cross-sectional view of a portion of the first block 1 in the unit structure 9, and is a view of the web 13 side viewed along the width direction from between the web 14 and the web 13. FIG. 8 is a cross-sectional view of the unit structure shown in FIG. 1 as seen from the arrow VIII-VIII.

[0063] It is preferable that at least the upper end or lower end of the first plate portion 41 abuts against the plate surface of the web 13, and it is also preferable that both the upper side and the lower side of the first plate portion 41 relative to the bridging portion 40 abut against the plate surface of the web 13. It is more preferable that the first plate portion 41 is arranged so that the entire plate surface abuts against the plate surface of the web 13, as shown in Fig. 8. This makes it possible to firmly withstand a force acting between the first block 1 and the second block 2 in a direction that increases the distance between the first block 1 and the second block 2.

[0064] 1, the second plate portion 42 has a plate surface on the side closer to the first block 1 abutting against a plate surface of the web 24 of the second block 2 on the opposite side to the side closer to the first block 1. This restricts the second block 2 (second block 2A) across which the bridging portion 40 is spanned from moving in a direction away from the first block 1 (separation).

[0065] The manner in which the first block 1 and the second block 2B are restricted in the direction of moving away from each other by the first plate portion 41 and the second plate portion 42 of another metal fitting 4 is the same as in the case of the first block 1 and the second block 2A described above.

[0066] In this way, the metal fitting 4 sandwiches the web 13 of the first block 1 and a portion of the second block 2 (web 24 in this embodiment), thereby restricting the distance between the first block 1 and the second block 2 adjacent to the first block 1, i.e., restricting the distance between the first block 1 and the second block 2 from increasing. In other words, the metal fitting 4 sandwiches a portion of the second block 2 between the first block 1 supported by the first plate portion 41 via the web 13 and the second plate portion 42, thereby restricting the distance between the first block 1 and the second block 2 from increasing.

[0067] The construction method for constructing the masonry structure 100 will be described below.

[0068] As shown in Figures 2 and 9, the construction method for masonry structure 100 involves a first step of arranging unit structures 9, each including a first block 1, a second block 2, and metal fittings 4, in the horizontal direction to construct a first-stage horizontal row structure L (an example of a first horizontal row structure, see Figure 2). Gaps between adjacent blocks in the horizontal direction may be filled with mortar or the like to form joints 8. Prior to carrying out the first step, vertical reinforcement bars 71 may be erected on the ground in advance. The vertical reinforcement bars 71 may be placed, for example, near the boundaries between the blocks. Figure 9 is a cross-section of the masonry structure 100 shown in Figure 2, taken along the line IX-IX.

[0069] Specifically, a first block 1 and a second block 2 are placed adjacent to each other with a mortar joint 8 in between, and metal fittings 4 are hung between the first block 1 and the second block 2 to successively construct unit structures 9.

[0070] First, the bridging portion 40 of the metal fitting 4 is fitted into the cutout portions 133, 234. Then, with the plate surface of the first plate portion 41 closest to the second block 2, across which the bridging portion 40 is suspended, in contact with the plate surface of the web 13 opposite the side closest to the second block 2, a fastener 43 is attached to the bridging portion 40 to restrict the first plate portion 41 from moving away from the second block 2. Similarly, the plate surface of the second plate portion 42 closest to the first block 1 is in contact with the plate surface of the web 24 opposite the side closest to the first block 1, and the fastener 44 restricts the second plate portion 42 from moving away from the first block 1. In this way, the metal fitting 4 restricts the first block 1 and the second block 2 from moving apart.

[0071] Furthermore, since the metal fittings 4 are attached to the webs of the first block 1 and the second block 2, they are easier to install and more efficient to construct than when metal fittings for restricting connection or movement are attached to thin members such as the face shells 11 and 12 of the first block 1.

[0072] After the first step, a second step may be performed in which unit structures 9 are constructed by sequentially stacking a new horizontal row structure L (an example of a second horizontal row structure) on an already constructed horizontal row structure L (another example of a first horizontal row structure), as shown in Figure 2. In the second step, unit structures 9 are arranged in the horizontal direction along the row of the already constructed horizontal row structure L, thereby constructing a new horizontal row structure L.

[0073] Before constructing a new horizontal row structure L on an already constructed horizontal row structure L, it is preferable to arrange horizontal reinforcement bars 72 on the already constructed horizontal row structure L, as shown in Figures 2 and 9. The horizontal reinforcement bars 72 are preferably arranged in the center in the thickness direction of the masonry structure 100. The horizontal reinforcement bars 72 may also be tied to the vertical reinforcement bars 71. The arrangement of the horizontal reinforcement bars 72 is easier to perform if it is performed after the metal fittings 4 are attached. It is also preferable that the metal fittings 4 are not in contact with the vertical reinforcement bars 71 and the horizontal reinforcement bars 72.

[0074] In the masonry structure 100, after a predetermined number of horizontal row structures L have been stacked as shown in Fig. 2, concrete 6 may be poured and filled into the masonry structure 100, i.e., into the gaps between the blocks, from above the masonry structure 100 under construction, as shown in Fig. 9. That is, the concrete 6 is filled into the spaces between the face shells 11 and 12 of the first block 1 and the spaces between the face shells 21 and 22 of the second block 2. By filling the concrete 6, the metal fittings 4 are buried in the concrete 6.

[0075] Furthermore, when pouring concrete 6 into the masonry structure 100 in this manner, if the bridging portion 40 of the metal fittings 4 is rod-shaped, it does not create resistance when pouring the concrete 6, nor does it act as an obstruction, making it possible to densely fill the masonry structure 100 with the concrete 6.

[0076] When concrete 6 is filled into the masonry structure 100, pressure generated by the load of the concrete 6 acts between the blocks, applying a load to each block that tends to separate the blocks, such as the first block 1 and the second block 2. However, the metal fittings 4 restrict the distance between the blocks, preventing the blocks from increasing in distance until the filled concrete 6 hardens. Therefore, the masonry construction method according to this embodiment does not require the construction of large-scale reinforcing structures (e.g., diagonal braces) around the masonry structure 100 during construction. Therefore, the masonry construction method according to this embodiment does not require curing around the masonry structure 100, eliminating the need to consider borrowing land from neighboring buildings to construct such structures. Furthermore, installing the metal fittings 4 is much easier than installing curing around the masonry structure 100, thereby reducing the labor required to construct the masonry structure 100. In addition, the easy installation method, which is not dependent on the skill of the builder, allows for safe construction.

[0077] Once the concrete 6 has hardened, the masonry structure 100 is complete.

[0078] In this way, a masonry structure and a construction method thereof can be provided.

[0079] [Another embodiment] (1) In the above embodiment, the masonry structure 100 includes, as a structural unit, a unit structure 9 including a first block 1, another block (second block 2 as an example of another block) arranged in a straight line adjacent to the first block 1, and a metal fitting 4. However, in the masonry structure 100, the unit structure 9 is not limited to the case where the first block 1 and the second block 2 are arranged in a straight line.

[0080] As another example of the unit structure 9, the masonry structure 100 may include a unit structure 9A as a unit structure 9, which includes a first block 1, a third block 3 as a second block 2 arranged adjacent to the widthwise end of the first block 1, and a metal fitting 4, as shown in FIG. 10. Note that FIG. 10 is an explanatory diagram of another masonry structure 100 and its unit structure 9A. The other masonry structure 100 shown in FIG. 10 is before being filled with concrete. The third block 3 is arranged so that its width direction intersects with the width direction of the first block 1. The side surface of the third block 3 in its thickness direction (the outer surface of the face shell 22 in FIG. 10) is adjacent to the widthwise end of the first block 1.

[0081] 10 and 11 show a case where the third block 3 serving as the second block 2 has face shells 22 and 23, a web 23, and a shell 29 disposed at one end of the third block 3 so as to close the space between the ends of the face shells 22 and 23. Fig. 11 shows a side view of the third block 3 as seen from the face shell 22 side along the thickness direction thereof.

[0082] The shell 29 may have a rectangular shape when viewed perpendicularly to the plate surface.

[0083] 11, a recess 221 is formed in the face shell 22 of the third block 3 by cutting out, for example, a rectangular shape so that a portion of the face shell 22 is recessed downward. A notch 223 recessed downward is formed in the bottom of the recess 221.

[0084] 10, in the unit structure 9A, the bridging portion 40 of the metal fitting 4 spans between the web 13 of the first block 1 and the recess 221 in the face shell 22 of the third block 3. The bridging portion 40 may be fitted into the notch 223.

[0085] The second plate portion 42 of the metal fitting 4 has a plate surface on the side closer to the first block 1 abutted against the plate surface of the face shell 22 on the side opposite to the side closer to the first block 1, i.e., against the inner surface of the face shell 22. This restricts the third block 3 (second block 2) across which the bridging portion 40 is bridged from moving in a direction away from the first block 1 (separation).

[0086] The third block 3 may further be restricted by the web 23 and another metal fitting 4 so that the distance between the third block 3 and another adjacent first block 1 does not become too large.

[0087] However, cases in which the first block 1 has the same structure as this third block 3 are not excluded.

[0088] (2) In the above embodiment, the metal fitting 4 includes a fastener 44 that is threadably connected to the second block 2 side of the bridging portion 40, the second plate portion 42 is disposed closer to the center of the bridging portion 40 than the fastener 44, and the fastener 44 restricts the second plate portion 42 from moving away from the first block 1. However, the fastener 44 and the male thread portion 402 that threadably connects the fastener 44 to the bridging portion 40 are not essential. As shown in FIG. 12 , the metal fitting 4 may have the second plate portion 42 fixed to the end of the bridging portion 40 by welding or the like.

[0089] (3) In the above embodiment, the cutout portion 133 has a groove shape formed in a direction intersecting the plate surface of the web 13, and the bridging portion 40 is fitted into the cutout portion 133 and bridges between the web 13 of the first block 1 and the second block 2A. However, the bridging portion 40 may be inserted into a through-hole formed in a direction intersecting the plate surface of the web 13 and bridge between the web 13 and the second block 2A.

[0090] The configurations disclosed in the above embodiments (including other embodiments, the same applies below) can be applied in combination with configurations disclosed in other embodiments, as long as no contradiction arises. Furthermore, the embodiments disclosed in this specification are examples, and the embodiments of the present invention are not limited to these, and can be modified as appropriate within the scope that does not deviate from the purpose of the present invention. [Industrial Applicability]

[0091] The present invention is applicable to masonry construction and construction methods thereof. [Explanation of symbols]

[0092] 1: First block 100:Masonry 11: Face shell 12: Face shell 13: Web 131: Curved edge 132: Curved edge 133: Notch 134: Notch 14: Web 2: Second block 21: Face shell 22: Face shell 221: Recess 223: Notch 23: Web 233: Notch 24: Web 29: Shell 2A: Second Block 2B: Second block 3: Third block 4: Metal fittings 40:Bridge part 401: Male thread 402: Male thread 41:First plate part 41a: Through hole 42:Second plate part 43: Fastener 44: Fastener 6: Concrete 71: Vertical stripes 72: Horizontal stripes 8: Joint 9: Unit structure 9A: Unit structure D: Direction H: Direction L: Horizontal row structure (first horizontal row structure, second horizontal row structure) W: Direction

Claims

1. a first block having a pair of face shells and a web stretched between plate surfaces of the pair of face shells; a second block disposed adjacent to the first block; a metal fitting that regulates the distance between the first block and the second block so that they do not become too far apart, The metal fitting regulates the distance between the web and the second block.

2. The metal fittings are: a bridging portion spanning from the first block to the second block; a first plate portion supported on a side of the first block in the bridge portion, The first plate portion is The bridge portion is disposed so as to intersect with the extending direction of the bridge portion, 2. The masonry structure according to claim 1, wherein the surface of the board closer to the second block is abutted against the surface of the board on the opposite side of the web from the side closer to the second block.

3. the metal fitting has a fastener that is threadably connected to the first block side of the bridge portion, The masonry structure according to claim 2 , wherein the fastener regulates the distance between the first plate portion and the second block in the direction along the extension direction.

4. The web has a notch or a through hole formed along a direction intersecting the plate surface, The masonry structure according to claim 3 , wherein the bridge portion is fitted into the notch portion or inserted into the through hole.

5. The first plate portion has a through hole penetrating a plate surface, the bridge portion is inserted into the through hole, The masonry structure according to claim 4 , wherein the first plate portion is positioned closer to the second block than the fastener.

6. The metal fittings are: a second plate portion supported on a side of the second block at the bridge portion, The masonry structure according to claim 5, wherein the first block and the second plate portion sandwich a portion of the second block to regulate the distance between the first block and the second block.

7. the first block is a concrete block; a space between the pair of face shells in the first block is filled with concrete; 6. The masonry structure of claim 5, wherein the metal fittings are embedded in the concrete.

8. 6. The masonry structure of claim 5, wherein said second block is the same shape as said first block.

9. The masonry structure according to claim 5 , wherein the first plate portion has an upper end or a lower end abutting against the web.

10. The masonry structure according to claim 5 , wherein the cutout portion is located at the center in the thickness direction of the first block.

11. the first block is a concrete block; a space between the pair of face shells in the first block is filled with concrete; The metal fitting is embedded in the concrete, the second block has the same shape as the first block, the bridging portion is disposed at the center in the height direction of the first block, The masonry structure according to claim 6 , wherein the cutout portion is located at the center in the thickness direction of the first block.

12. A masonry construction method according to any one of claims 1 to 11, The construction method includes a first step of arranging unit structures including the first block, the second block, and the metal fittings along a horizontal direction to construct a first horizontal row structure.

13. The construction method according to claim 12, further comprising a second step of constructing the unit structures on the horizontal row structures.

14. The construction method according to claim 13, wherein in the second step, the unit structures are arranged in the horizontal direction along the rows of the first horizontal row structure to construct a second horizontal row structure.

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